Recent Papers

Asmussen, K.E., A.J. Haddad, and C.R. Bhat, "Telework-to-Play or Play-to-Telework? Investigating the Directional Relationship Between Telework and Nonwork Travel," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, original version: August 2024, revised version: August 2025 (Keywords: telework, maintenance travel, leisure travel, causal relationship, latent segments). PDF version, MS Word version

Bhat, C.R., E. Clower, A.J. Haddad, and J. Jones, "BHATLIB: An Open-Source Library for Statistical and Econometric Matrix-Based Inference Methods in GAUSS," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, August 2025 (Keywords: discrete choice modeling; mixed outcome model; GAUSS software; multivariate ordered-response; MDCEV). PDF version, MS Word version

Hwang, H., I. Batur, D. Robbennolt, A.J. Haddad, M.G. Rodriguez Ocana, R.M. Pendyala, and C.R. Bhat, "A Tale of Two Perspectives: The Mileage-based User Fee Conundrum," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, August 2025 (Keywords: mileage-based user fee, pricing policy fairness, mobility management, multivariate econometric model, individual attitudes, transportation funding). PDF version, MS Word version

Hwang, H., I. Batur, F. Yu, D. Robbennolt, R.M. Pendyala, and C.R. Bhat, "Understanding Public Perceptions of Congestion Pricing - A U.S. Perspective," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, August 2025 (Keywords: transportation system fairness, transportation policy, congestion pricing, attitudes, lifestyle factors, multivariate econometric model). PDF version, MS Word version

Robbennolt, D., H. Hwang, J.R. Dimas Valle, I. Batur, R.M. Pendyala, and C.R. Bhat, "Trapped by Transport: Exploring the Everyday Impact of Mobility Challenges and Transportation Insecurities in the United States," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, August 2025 (Keywords: transportation insecurity, social participation, travel problems, transportation barriers, transportation perceptions). PDF version, MS Word version

Haddad, A.J., E.A. Podnar, A.E. Beliveau, D. Sharma, and C.R. Bhat, "Disparities in Pedestrian Crossing and Driver Yielding Behaviors: Evidence from a Large-Scale Observational Study at Urban Intersections," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, July 2025 (Keywords: pedestrian-vehicle interaction, pedestrian crossing violation, jaywalking, driver yielding, naturalistic video data collection, pedestrian safety). PDF version, MS Word version

Robbennolt, D., and C.R. Bhat, "Reasons for Residential Relocation: A Structuration Approach to Analyze Evolving Motivations in the Housing Market," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, July 2025 (Keywords: residential relocation, residential mobility, structuration theory, relocation motivations, urban planning, travel demand). PDF version, MS Word version

Robbennolt, D., H. Hwang, A. Jaiswal, S. Verma, S. Chakrabarti, and C.R. Bhat, "Who is Willing to Pay for Travel Time Savings and How Much? An Iterative Bidding Contingent Valuation Study in Mumbai," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, July 2025 (Keywords: value of travel time savings, willingness to pay, contingent valuation, priced lanes, project prioritization, discrete-continuous models). PDF version, MS Word version

Haddad, A.J. and C.R. Bhat, "The Reverse Side of Online Shopping: Examining Sociodemographic and Built-Environment Determinants of Delivery Returns," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, June 2025 (Keywords: e-commerce returns, online shopping behavior, transportation planning, reverse logistics, consumer behavior). PDF version, MS Word version

Alhassan, V.O., F. Yu, J.R. Dimas Valle, T.B. Magassy, I. Batur, D. Salon, C.R. Bhat, and R.M. Pendyala, "Investigating the Influence of Alternative Survey Participant Recruitment Strategies on Measurement and Inference of Mobility Patterns," Technical paper, School of Sustainable Engineering and the Built Environment, Arizona State University, August 2024 (Keywords: survey methods, sampling strategies, sample recruitment, online panels, survey weighting, mobility measurement). PDF version, MS Word version

Yu, F., I. Batur, A.J. Haddad, E.M. Hennessy, M.G. Rodriguez Ocana, C. Chen, X. Zhou, C.R. Bhat, and R.M. Pendyala, "A U-Shaped Paradigm: Understanding the Impact of Telecommuting on Public Transit Ridership Before and After the Pandemic," Technical paper, School of Sustainable Engineering and the Built Environment, Arizona State University, August 2024 (Keywords: joint modeling, longitudinal analysis, telecommuting, mode choice, public transit). PDF version, MS Word version

Batur, I., K.E. Asmussen, A. Mondal, T.B. Magassy, S. Khoeini, C.R. Bhat, and R.M. Pendyala, "Assessing the Impact of Ridehailing Service Use on Bus Ridership: A Joint Modeling Framework Accounting for Endogeneity and Latent Attitudes," Technical paper, School of Sustainable Engineering and the Built Environment, Arizona State University, August 2024 (Keywords: ridehailing service, transit use, mode substitution effects, attitudes and behaviors, integrated model of behavior). PDF version, MS Word version

Asmussen, K.E., V. Verma, and C.R. Bhat, "A Guideline Framework for Using Information and Communication Technology (ICT)-Based Data in Travel Demand Modeling," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, July 2023 (Keywords: transportation, data fusion, information and communication technology (ICT) data, travel demand models, mobility patterns). PDF version, MS Word version

Hwang, H., A. Haddad, I. Batur, S. Saxena, R.M. Pendyala, and C.R. Bhat, "An Analysis of Walking Frequency Before and After the Pandemic," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, July 2023 (Keywords: physical activity, walking frequency, COVID impacts, active travel, multivariate models). PDF version, MS Word version

Saxena, S., C.R. Bhat, and A.R. Pinjari, "Analysing Household Vehicle Holdings and Usage in California using a Two-Stage Budgeting-Based Multiple Discrete-Continuous Model," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, July 2023 (Keywords: vehicle ownership, vehicle usage, two-stage budgeting model, utility theory, alternative fueled vehicles). PDF version, MS Word version

Dirks, A.C., I. Batur, A. Mondal, T.B. Magassy, R.M. Pendyala, A. Haddad, C.R. Bhat, C. Chen, D. Salon, M.W. Bhagat-Conway, M. Mohammadi, R. Chauhan, A. Mohammadian, and S. Derrible, "Access to Food in a Severe Prolonged Disruption: The Case of Grocery and Meal Shopping During the COVID-19 Pandemic," Technical paper, School of Sustainable Engineering and the Built Environment, Arizona State University, August 2022 (Keywords: food access, disadvantaged communities, vulnerability, adaptability, grocery shopping, meal shopping, disruption, COVID impact, physical versus virtual access, online shopping, activity engagement).  PDF version, MS Word version

Verma, V., A. Mondal, K.E. Asmussen, I. Batur, T.B. Magassy, C.R. Bhat, and R.M. Pendyala, "A Joint Behavioral Choice Model of Carpool Formation and Frequency," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, August 2022 (Keywords: carpool formation, carpool accompaniment, carpool frequency, joint model of carpool choices, managed lanes).  PDF version, MS Word version

Bhat, C.R. and A. Mondal, "On the Almost Exact-Equivalence of the Radial and Spherical Unconstrained Cholesky-Based Parameterization Methods for Correlation Matrices," Technical paper, Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, original version May 2021; revised version October 2021 (Keywords: correlation matrix, unconstrained optimization, spherical parameterization, radial parameterization, Cholesky decomposition, simulation).

 

Accepted

Bhat, C.R. "A New Flexible Skewed Bimodal Distribution with Multivariate Extensions: Theory and Application to Traffic Crash Injury Severity Analysis," Transportation Research Part B, forthcoming (Keywords: YJ transformation, bimodality, non-normality, multivariate skewed distributions, injury severity analysis). PDF version, MS Word version

 

Published

Batur, I., A. Mondal, V.O. Alhassan, K.E. Asmussen, C.R. Bhat, and R.M. Pendyala (2026), "The Induced Demand Implications of Alternative Adoption Modalities of Automated Vehicles," Transport Policy, Vol. 175, 103879 (Keywords: automated vehicles, adoption modalities, induced demand, automated vehicle impacts, planning and policy implications, joint model system). PDF version, MS Word version

Robbennolt, D., R.M. Pendyala, and C.R. Bhat (2026), "Data Collection, Weighting, and Modeling Techniques to Estimate Unbiased Population Parameters," Transportation Research Part B, Vol. 203, 103349 (Keywords: sample selection, selection bias, weighting, survey methods, nonresponse, joint modeling). PDF version, MS Word version

Robbennolt, D., A.J. Haddad, and C.R. Bhat (2026), "A Rank-Based Model of Residential Location Preferences Before and During the COVID-19 Pandemic," Transportation Research Part A, Vol. 203, 104780 (Keywords: residential location choice, COVID impacts, rank-ordered model, urban planning, travel demand). PDF version, MS Word version

Robbennolt, D., A. Beliveau, and C.R. Bhat (2025), "An Investigation of Physical Participation Dissonance and Virtual Activity Participation in the United States," Transportation Research Part A, Vol. 201, 104696 (Keywords: perceived accessibility, physical and virtual activities, dissonance, transportation needs, social exclusion). PDF version, MS Word version

Ramakrishnan, G.A., K.K. Srinivasan, S. Saxena, A.R. Pinjari, C.R. Bhat, and R. Pendyala (2025), "Exploring the Relationship between Mode Selection and Usage Frequency in Multi-Day Mode Choice Patterns for Commute Trips," Current Science, Vol. 129, No. 9, pp. 806-823 (Keywords: alternative-specific gamma profile, MDCEV model, multi-day mode choice, multivariate mode frequency, unimodal and multimodal segments, primary and secondary sustainable mode choice).

Kothawala, A., A.J. Haddad, P. Loa, Y. Lee, G. Circella, and C.R. Bhat (2025), "Hybrid Workers' Activity Intensity: Post-Pandemic Comparison of Telework-Only and In-Person Workdays," Transportation Research Record, Vol. 2679, No. 11, pp. 260-273 (Keywords: remote work, activity-travel patterns, COVID-19 pandemic, multivariate ordered-response probit). PDF version, MS Word version

Hwang, H., A.J. Haddad, and C.R. Bhat (2025), "Multivariate Analysis of Frequency, Duration and Companionship in Walking Behaviors Among Adults Over 50," Journal of Transport & Health, Vol. 44, 102161 (Keywords: older adults, walking behavior, social companionship, multivariate modeling, health promotion). PDF version, MS Word version

Robbennolt, D., S. Hardman, J. Firestone, and C.R. Bhat (2025), "A Model of Electric Vehicle Adoption and Motivating Reasons for Adoption," Transportation Research Part D, Vol. 146, 104906 (Keywords: revealed preference, revealed EV behavior, rank-ordered model, joint mixed model, EV adoption latent perceptions). PDF version, MS Word version

Smith, B.V., D. Robbennolt, and C.R. Bhat (2025), "An Evaluation of the Long-Term Effects of the COVID-19 Pandemic on Public Transit Use in the United States," Transport Policy, Vol. 169, pp. 90-100 (Keywords: public transit, ridership, COVID impacts, behavior permanence, equity, multivariate model). PDF version, MS Word version

Giubergia, D., A.J. Haddad, F. Piras, C.R. Bhat, and I. Meloni (2025), "Modeling Spatial and Social Interdependency Effects on Commuting Mode Choice," Transportation Research Part A, Vol. 196, 104474 (Keywords: social influence, mode choice, spatial model, interdependency effect). PDF version, MS Word version

Bhat, C.R., A. Mondal, and A.R. Pinjari (2025), "A Flexible Non-Normal Random Coefficient Multinomial Probit Model: Application to Investigating Commuters' Mode Choice Behaviors in a Developing Economy Context," Transportation Research Part B, Vol. 195, 103186 (Keywords: non-normal distribution, unobserved heterogeneity, Gaussian copula, mode choice, developing economy).

Haddad, A.J., H. Hwang, I. Batur, R.M. Pendyala, and C.R. Bhat (2025), "Walking Patterns in Older Adults: Modeling the Interplay of Frequency, Place, and Purpose," Journal of Transport & Health, Vol. 41, 101962 (Keywords: walking frequency, walking purpose, walking behaviors, transport and health, multivariate modeling). PDF version, MS Word version

Haddad, A.J., A. Mondal, and C.R. Bhat (2025), "Eating-out Behavior across Different Restaurant Segment Types: Implications for Transportation, Public Health, and Food Service Sectors," Transportation Research Part A, Vol. 192, 104337 (Keywords: consumer dining behavior, teleworking, built environment, multiple discrete-count extreme value model, count model). PDF version, MS Word version

Haddad, A.J., and C.R. Bhat (2025), "Telemedicine Adoption Before, During, and After COVID-19: The Role of Socioeconomic and Built Environment Variables," Transportation Research Part A, Vol. 192, 104351 (Keywords: telemedicine, telehealth, COVID-19, travel demand, equity).

Mesaric, R., A. Mondal, K.E. Asmussen, J. Molloy, C.R. Bhat, and K.W. Axhausen (2024), "Impact of the COVID-19 Pandemic on Activity Time Use and Timing Behavior in Switzerland," Transportation Research Record, Vol. 2678, No. 12, pp. 47-58 (Keywords: data and data science, analysis, modeling, activity type data, data analysis, GPS data, trip purpose data, planning and analysis, traveler behavior and values, activity, behavior analysis, pattern of behavior, pattern of choices, time use).

Meister, A., A. Mondal, K.E. Asmussen, C.R. Bhat, and K.W. Axhausen (2024), "Modeling Urban Mode Choice Behavior during the COVID-19 Pandemic in Switzerland using Mixed Multiple Discrete-Continuous Extreme Value Models," Transportation Research Record, Vol. 2678, No. 12, pp. 84-95 (Keywords: planning and analysis, choice models, mode choice, models/modeling, behavior analysis, mode choices).

Winkler, C., A. Mondal, R. Mesaric, K. Asmussen, C.R. Bhat, and K.W. Axhausen (2024), "Investigation of Shifts in Time Use Behavior during the COVID-19 Pandemic: A Mixed Multiple Discrete-Continuous Extreme Value Approach with Panel GPS Data," Transportation Research Record, Vol. 2678, No. 12, pp. 197-208 (Keywords: planning and analysis, travel surveys, activity-based modeling, pattern (behavior, choices), time use).

Batur, I., A.C. Dirks, C.R. Bhat, S.E. Polzin, C. Chen, and R.M. Pendyala (2024), "Analysis of Changes in Time Use and Activity Participation in Response to the COVID-19 Pandemic in the United States: Implications for Well-Being," Transportation Research Record, Vol. 2678, No. 12, pp. 512-526 (Keywords: time use, Covid-19 pandemic, work-from-home, commute, time poverty, well-being).  PDF version, MS Word version

Magassy, T.B., I. Batur, A. Mondal, K.E. Asmussen, C.R. Bhat, D. Salon, M.W. Bhagat-Conway, M. Javadinasr, R. Chauhan, A. Mohammadian, S. Derrible, and R.M. Pendyala (2024),  "Evolution of Mode Use During the COVID-19 Pandemic in the United States: Implications for the Future of Transit," Transportation Research Record, Vol. 2678, No. 12, pp. 567-579 (Keywords: commute mode, transit ridership, transit recovery, COVID impacts, socio-economic effects).  PDF version, MS Word version

Robbennolt, D., A.J. Haddad, A. Mondal, and C.R. Bhat (2024), "Housing Choice in an Evolving Remote Work Landscape," Transportation Research Part A, Vol. 190, 104285 (Keywords: housing choices, dwelling unit characteristics, residential location, latent lifestyles, urban planning, travel demand analysis). PDF version, MS Word version

Bhat, C.R. (2024), "Transformation-Based Flexible Error Structures for Choice Modeling," Journal of Choice Modelling, Vol. 53, 100522 (Keywords: multivariate choice, YJ transformation, non-normality, skewed distributions, walking frequency). PDF version, MS Word version

Batur, I., V.O. Alhassan, M.V. Chester, S.E. Polzin, C. Chen, C.R. Bhat, and R.M. Pendyala (2024), "Understanding How Extreme Heat Impacts Human Activity-Mobility and Time Use Patterns," Transportation Research Part D, Vol. 136, 104431 (Keywords: extreme heat, time use, mobility, vulnerability, behavioral adaptation, activity-travel choices). PDF version, MS Word version

Kothawala, A., A. Haddad, B. Ozbilen, G. Circella, C. Saridakis, Z. Wadud, Y. Yang, S. Grant-Muller, S. Castellanos, and C.R. Bhat (2024), "Investigating Objective and Subjective Factors Influencing the Frequency and Purpose of E-Scooter Trips," Transportation Research Record, Vol. 2678, No. 10, pp. 367-382 (Keywords: micromobility, e-scooters, travel behavior, market adoption, psycho-social latent constructs, GHDM model). PDF version, MS Word version

Anderson, S.M., K.E. Asmussen, S. Saxena, I. Batur, R.M. Pendyala, and C.R. Bhat (2024), "An Investigation of Dissonance in Telework Frequency," Transportation Research Part C, Vol. 166, 104712 (Keywords: dissonance, consonance, telework frequency, telework preferences, travel demand, remote work, work from home, COVID impacts). PDF version, MS Word version

Asmussen, K.E., A. Mondal, and C.R. Bhat (2024), "The Interplay between Teleworking Choice and Commute Distance," Transportation Research Part C, Vol. 165, 104690 (Keywords: telework, commute distance, hybrid work, residential location, causal relationship, latent segments). PDF version, MS Word version

Biswas, M., C.R. Bhat, and A.R. Pinjari (2024), "The Use of Pooled RP-SP Choice Data to Simultaneously Identify Alternative Attributes and Random Coefficients on Those Attributes," Transportation Research Part B, Vol. 186, 102988 (Keywords: pooled RP-SP data, travel mode choice, mixed logit, stochastic variables, random coefficients, parameter identification). PDF version, MS Word version

Saxena, S., A.R. Pinjari, C.R. Bhat, and A. Mondal (2024), "A Flexible Multiple Discrete-Continuous Probit (MDCP) Model: Application to Analysis of Expenditure Patterns of Domestic Tourists in India," Transportation, Vol. 51, pp. 1299-1326 (Keywords: multiple discrete-continuous choice models, flexible utility functions, probit kernel, domestic tourism in India, tourists' expenditures).  PDF version, MS Word version

Biswas, M., C.R. Bhat, S. Ghosh, and A.R. Pinjari (2024), "Choice Models with Stochastic Variables and Random Coefficients," Journal of Choice Modelling, Vol. 51, 100488 (Keywords: discrete choice, stochastic variables, random coefficients, identification, integrated choice and latent variable (ICLV) models). PDF version, MS Word version

Magassy, T.B., I. Batur, A. Mondal, K.E. Asmussen, C.R. Bhat, and R.M. Pendyala (2024),  "Multidimensional Analysis of Willingness to Share Rides in a Future of Autonomous Vehicles," Transportation Research Record, Vol. 2678, No. 6, pp. 865-880 (Keywords: ridesharing, autonomous vehicle adoption, automated vehicles, shared mobility, user experience, willingness to pool).  PDF version, MS Word version

Haddad, A., A. Mondal, N. Eluru, and C.R. Bhat (2024), "A Novel Integrated Approach to Modeling and Predicting Crash Frequency by Crash Event State," Analytic Methods in Accident Research, Vol. 41, 100319 (Keywords: multivariate crash count, injury severity, integrated framework, accident analysis). PDF version, MS Word version

Batur, I., A.C. Dirks, A. Mondal, C.R. Bhat, and R.M. Pendyala (2024), "Does Ridehailing Use Affect Vehicle Ownership or Vice Versa? An Exploratory Investigation of the Relationship Using a Latent Market Segmentation Approach," Transportation Research Record, Vol. 2678, No. 3, pp. 252-265 (Keywords: ridehailing use, vehicle ownership, vehicle availability, causal relationship, latent segments, attitudinal factors, joint models, traveler behavior).  PDF version, MS Word version

Asmussen, K.E., A. Mondal, I. Batur, A. Dirks, R.M. Pendyala, and C.R. Bhat (2024), "An Investigation of Individual-Level Telework Arrangements in the COVID-Era," Transportation Research Part A, Vol. 179, 103888 (Keywords: ICT substitution, telework, COVID impacts, behavioral preferences). PDF version, MS Word version

Mondal, A., and C.R. Bhat (2023), "Investigating Residential Built Environment Effects on Rank-Based Modal Preferences and Auto-Ownership," Transportation Research Record, Vol. 2677, No. 10, pp. 777-796 (Keywords: residential self-selection, latent constructs, GHDM, auto-ownership, ranked mode choice).  PDF version, MS Word version

Wang, K., C.R. Bhat, and X. Ye (2023), "A Multinomial Probit Analysis of Shanghai Commute Mode Choice," Transportation, Vol. 50, pp. 1471-1495 (Keywords: mode choice, multinomial probit (MNP) model, multivariate normal cumulative distribution (MVNCD), two-variate bivariate screening (TVBS) approach, cross-nested logit (CNL) model).  PDF version, MS Word version

Asmussen, K.E., A. Mondal, C.R. Bhat, and R.M. Pendyala (2023), "On Modeling Future Workplace Location Decisions: An Analysis of Texas Employees," Transportation Research Part A, Vol. 172, 103671 (Keywords: work place location, teleworking, third work place, stated preference, work environment, hybrid work).

Saxena, S., C.R. Bhat, and A.R. Pinjari (2023), "Separation-based Parameterization Strategies for Estimation of Restricted Covariance Matrices in Multivariate Model Systems," Journal of Choice Modelling, Vol. 47, 100411 (Keywords: covariance matrix, Cholesky decomposition, separation-based strategy, spherical parametrization, restrictions on the correlation matrix).  PDF version, MS Word version

Dannemiller, K.A., K.E. Asmussen, A. Mondal, and C.R. Bhat (2023), "Autonomous Vehicle Impacts on Travel-Based Activity and Activity-Based Travel," Transportation Research Part C, Vol. 150, 104107 (Keywords: travel-based activity, activity-based travel, multi-tasking, autonomous vehicles, ranked probit, psycho-social constructs).

Mondal, A., N. Ruiz Juri, C.R. Bhat, and A. Mirzaei (2023), "Accounting for Ride-Hailing and Connected and Autonomous Vehicle Empty Trips in a Four-Step Travel Demand Model," Transportation Research Record, Vol. 2677, No. 3, pp. 217-228 (Keywords: four-step model, empty trips, connected autonomous vehicles, ride-hailing services).  PDF version, MS Word version

Haddad, A.J., A. Mondal, C.R. Bhat, A. Zhang, M.C. Liao, L.J. Macias, M.K. Lee, and S.C. Watkins (2023), "Pedestrian Crash Frequency: Unpacking the Effects of Contributing Factors and Racial Disparities," Accident Analysis and Prevention, Vol. 182, 106954 (Keywords: pedestrian crashes, racial bias, implicit bias, safety, crash risk exposure, social resistance, built environment).  PDF version, MS Word version

Batur, I., K.E. Asmussen, A. Mondal, S. Khoeini, T.B. Magassy, R.M. Pendyala, and C.R. Bhat (2023), "Understanding Interest in Personal Ownership and Use of Autonomous Vehicles for Running Errands: An Exploration Using a Joint Model Incorporating Attitudinal Constructs," Transportation Research Record, Vol. 2677, No. 2, pp. 541-554 (Keywords: autonomous vehicles, planning and analysis, traveler behavior and values, attitudes/attitudinal data, behavior analysis).

Haddad, A.J., A. Mondal, and C.R. Bhat (2023), "Eat-in or Eat-out? A Joint Model to Analyze the New Landscape of Dinner Meal Preferences," Transportation Research Part C, Vol. 147, 104016 (Keywords: dinner choice, pick-up, delivery, takeout, dine-in, COVID-19).  PDF version, MS Word version

Bhat, C.R. (2022), "Data Collection Methods and Activity-Travel Behavior Analysis in a Fast Evolving Technological Future," ITE Journal, Vol. 92, No. 10, pp. 29-33 (October 2022 Issue) (Keywords: travel-based activity, activity-travel behavior, revealed behavior, stated intentions, autonomous vehicles).  PDF version, MS Word version

Bhat, C.R. (2022), "A Closed-Form Multiple Discrete-Count Extreme Value (MDCNTEV) Model," Transportation Research Part B, Vol. 164, pp. 65-86 (Keywords: multivariate count, MDCNTEV model, discrete-count, two-stage budgeting, tourism trip generation and destination choice).  PDF version, MS Word version

Bhat, C.R. (2022), "A New Closed-Form Two-Stage Budgeting-Based Multiple Discrete-Continuous Model," Transportation Research Part B, Vol. 164, pp. 162-192 (Keywords: multiple discrete-continuous model, two-stage budgeting, reverse Gumbel distribution, utility-theoretic model, minLogistic distribution, vehicle fleet modeling).  PDF version, MS Word version

Bhat, C.R. and A. Mondal (2022), "A New Flexible Generalized Heterogeneous Data Model (GHDM) with an Application to Examine the Effect of High Density Neighborhood Living on Bicycling Frequency," Transportation Research Part B, Vol. 164, pp. 244-266 (Keywords: multidimensional mixed data models, latent variables, maximum approximate composite marginal likelihood (MACML) estimation, GHDM, built environment, bicycling).  PDF version, MS Word version

Deepa, L., A. Mondal, A. Raman, A.R. Pinjari, C.R. Bhat, K.K. Srinivasan, R.M. Pendyala, and G. Ramadurai (2022), "An Analysis of Individuals' Usage of Bus Transit in Bengaluru, India: Disentangling the Influence of Unfamiliarity with Transit from that of Subjective Perceptions of Service Quality," Travel Behaviour and Society, Vol. 29, pp. 1-11 (Keywords: public transit use in India, latent variable model, unfamiliarity, perceptions of service quality, Likert scale responses).  PDF version

Magassy, T.B., I. Batur, A. Mondal, K.E. Asmussen, S. Khoeini, R.M. Pendyala, and C.R. Bhat (2022), "Influence of Mode Use on Level of Satisfaction with Daily Travel Routine: A Focus on Automobile Driving in the United States," Transportation Research Record, Vol. 2676, No. 10, pp. 1-15. (Keywords: planning and analysis, traveler behavior and values, attitudes/attitudinal data, behavior analysis, pattern (behavior, choices, etc.)).

Sharda, S., X. Ye, A. Raman, R.M. Pendyala, A.R. Pinjari, C.R. Bhat, K.K. Srinivasan, and G. Ramadurai (2022), "Accounting for the Influence of Attitudes and Perceptions in Modeling the Adoption of Emerging Transportation Services and Technologies in India," Transportation Research Record, Vol. 2676, No. 9, pp. 582-595 (Keywords: on-demand transportation (Ola/Uber), electric vehicles, attitudes and perceptions, integrated choice and latent variable modeling).

Abel, K.C., G.S. Nair, C.R. Bhat, and K.M. Faust (2022), "Breaking Out from Food Desert Boundaries: Using Travel Behavior and Location-Choice Modeling to Measure Food Accessibility," ASCE's Journal of Urban Planning and Development, Vol. 148, No. 2, 04022019 (Keywords: food desert, location-choice modeling, accessibility, NHTS, travel behaviors).

Asmussen, K.E., A. Mondal, and C.R. Bhat (2022), "Adoption of Partially Automated Vehicle Technology Features and Impacts on Vehicle Miles of Travel (VMT)," Transportation Research Part A, Vol. 158, pp. 156-179 (Keywords: partially automated vehicles, vehicle automation, safety offsets, vehicle miles of travel (VMT), psycho-social constructs).

Blazanin, G., A. Mondal, K.E. Asmussen and C.R. Bhat (2022), "E-Scooter Sharing and Bikesharing Systems: An Individual-level Analysis of Factors Affecting First Use and Use Frequency," Transportation Research Part C, Vol. 135, 103515 (Keywords: micromobility, electric scooters, bike share systems, active mobility, shared mobility, transportation equity).

Bhat, C.R., A. Mondal, A.R. Pinjari, S. Saxena, and R.M. Pendyala (2022), "A Multiple Discrete Continuous Extreme Value Choice (MDCEV) Model with a Linear Utility Profile for the Outside Good Recognizing Positive Consumption Constraints," Transportation Research Part B, Vol. 156, pp. 28-49 (Keywords: MDCEV models, multivariate distributions, linear outside good utility, utility theory, consumer theory, reverse Gumbel distribution).  PDF version, MS Word version

Saxena, S., A.R. Pinjari, and C.R. Bhat (2022), "Multiple Discrete-Continuous Choice Models with Additively Separable Utility Functions and Linear Utility on Outside Good: Model Properties and Characterization of Demand Functions," Transportation Research Part B, Vol. 155, pp. 526-557 (Keywords: multiple discrete-continuous choice models, demand functions, linear outside good utility profile, tourism travel expenditures, consumer behaviour).  PDF version, MS Word version

Mondal, A., and C.R. Bhat (2022), "A Spatial Rank-Ordered Probit Model with an Application to Travel Mode Choice," Transportation Research Part B, Vol. 155, pp. 374-393 (Keywords: ranked data analysis, probit models, spatial econometrics, travel mode choice, autonomous vehicles).

Gomez, J., A. Aguilera-Garcia, F.F. Dias, C.R. Bhat, and J.M. Vassallo (2021), "Adoption and Frequency of Use of Ride-hailing Services in a European City: The Case of Madrid," Transportation Research Part C, Vol. 131, 103359 (Keywords: ride-hailing, ridesourcing, urban mobility, GHDM model, Madrid, Spain).  PDF version, MS Word version

Ramakrishnan, G.A., K.K. Srinivasan, A. Mondal, and C.R. Bhat (2021), "Joint Model of Sustainable Mode Choice for Commute, Shift Potential and Alternative Mode Chosen," Transportation Research Record, Vol. 2675, No. 7, pp. 377-391.

Dannemiller, K.A., A. Mondal, K.E. Asmussen, and C.R. Bhat (2021), "Investigating Autonomous Vehicle Impacts on Individual Activity-Travel Behavior," Transportation Research Part A, Vol. 148, pp. 402-422 (Keywords: equity, autonomous vehicles (AVs), activity-travel, long-distance travel, safety, design, policy).

Pinjari, A.R., and C.R. Bhat (2021), "Computationally Efficient Forecasting Procedures for Kuhn-Tucker Consumer Demand Model Systems: Application to Residential Energy Consumption Analysis," Journal of Choice Modelling, Vol. 39, 100283 (Keywords: discrete-continuous models, Kuhn-Tucker consumer demand systems, MDCEV model, forecasting procedure, residential energy consumption, climate change impacts).

Mondal, A. and C.R. Bhat (2021), "A New Closed Form Multiple Discrete-Continuous Extreme Value (MDCEV) Choice Model with Multiple Linear Constraints," Transportation Research Part B, Vol. 147, pp. 42-66 (Keywords: consumer theory, multiple discrete-continuous extreme value model, extreme value distribution, multivariate distributions, multiple constraints, closed-form structure). 

Mondal, A., C.R. Bhat, M.C. Costey, A.C. Bhat, T. Webb, T.B. Magassy, R.M. Pendyala, and W.H.K. Lam (2021), "How Do People Feel While Walking? A Multivariate Analysis of Emotional Well-Being for Utilitarian and Recreational Walking Episodes," International Journal of Sustainable Transportation, Vol. 15, No. 6, pp. 419-434 (Keywords: time use, utilitarian walking, recreational walking, well-being, ordered probit, multivariate analysis).  PDF version, MS Word version

Dias, F.F., T. Kim, C.R. Bhat, R.M. Pendyala, W.H.K. Lam, A.R. Pinjari, K.K. Srinivasan, and G. Ramadurai (2021), "Modeling the Evolution of Ride-Hailing Adoption and Usage: A Case Study of the Puget Sound Region," Transportation Research Record, Vol. 2675, No. 3, pp. 81-97 (Keywords: ride-hailing, e-hailing, mobility as a service, bivariate ordered probit model, travel forecasting, evolutionary dynamics in behavior, market adoption, Mobility on Demand (MoD)).  PDF version, MS Word version

Kang, S., A. Mondal, A.C. Bhat, and C.R. Bhat (2021), "Pooled Versus Private Ride-Hailing: A Joint Revealed and Stated Preference Analysis Recognizing Psycho-Social Factors,"Transportation Research Part C, Vol. 124, 102906 (Keywords: joint RP-SP analysis, psycho-social factors, ride-hailing, pooled mobility, willingness-to-share, value of travel time).

Nair, G.S. and C.R. Bhat (2021), "Sharing the Road with Autonomous Vehicles: Perceived Safety and Regulatory Preferences," Transportation Research Part C, Vol. 122, 102885 (Keywords: autonomous vehicles, driverless cars, safety, regulation, generalized heterogenous data model, digital assistants).

Asmussen, K.E., A. Mondal, and C.R. Bhat (2020), "A Socio-Technical Model of Autonomous Vehicle Adoption Using Ranked Choice Stated Preference Data,"Transportation Research Part C, Vol. 121, 102835 (Keywords: socio-technical model, autonomous vehicles, ranked choice, psycho-social variables, multivariate analysis).

Bhat, C.R., A. Mondal, K.E. Asmussen, and A.C. Bhat (2020), "A Multiple Discrete Extreme Value Choice Model with Grouped Consumption Data and Unobserved Budgets," Transportation Research Part B, Vol. 141, pp. 196-222 (Keywords: multiple discrete-grouped choice models, MDCEV models, multiple discrete outcomes, linear outside good utility, grouped consumption, unobserved budgets, utility theory, time use, consumer theory).

Dias, F.F., G.S. Nair, N. Ruiz-Juri, C.R. Bhat, and A. Mirzaei (2020), "Incorporating Autonomous Vehicles in the Traditional Four-Step Model," Transportation Research Record, Vol. 2674, No. 7, pp. 348-360 (Keywords: autonomous vehicles, AVs, self-driving vehicles, demand model, four-step model).

Jiang, C., C.R. Bhat, and W.H.K. Lam (2020), "A Bibliometric Overview of Transportation Research Part B: Methodological in the Past Forty Years (1979-2019)," Transportation Research Part B, Vol. 138, pp. 268-291 (Keywords: Transportation Research Part B: Methodological, bibliometrics, development review, Web of science, VOSviewer . PDF version, MS Word version

Devaraj, A., G.A. Ramakrishnan, G.S. Nair, K.K. Srinivasan, C.R. Bhat, A.R. Pinjari, G. Ramadurai, and R.M. Pendyala (2020), "Joint Model of Application-Based Ride Hailing Adoption, Intensity of Use, and Intermediate Public Transport Consideration among Workers in Chennai City," Transportation Research Record, Vol. 2674, No. 4, pp. 152-164 (Keywords: app-based ridehailing, trivariate ordered probit model, adoption, frequency, consideration, Intermediate Public Transport, auto-rickshaw, share-auto).  PDF version, MS Word version

Dias, F.F., P.S. Lavieri, S. Sharda, S. Khoeini, C.R. Bhat, R.M. Pendyala, A.R. Pinjari, G. Ramadurai, and K.K. Srinivasan (2020), "A Comparison of Online and In-Person Activity Engagement: The Case of Shopping and Eating Meals," Transportation Research Part C, Vol. 114, pp. 643-656 (Keywords: physical and virtual activity engagement, shopping activities, eat-meal activities, multivariate ordered probit model, ICT effects on travel behavior, substitution and complementarity effects).  PDF version, MS Word version

Nair, G.S., C.R. Bhat, I. Batur, R.M. Pendyala, and W.H.K. Lam (2020), "A Model of Deadheading Trips and Pick-Up Locations for Ride-Hailing Service Vehicles,"Transportation Research Part A, Vol. 135, pp. 289-308 (Keywords: ride-hailing, TNC, deadheading, empty trips, Austin, Ride Austin, Uber, Lyft, location choice model, nonlinear-in-parameter multinomial logit model).  PDF version, MS Word version

Mannering, F., C.R. Bhat, V. Shankar, and M. Abdel-Aty (2020), "Big Data, Traditional Data and the Tradeoffs between Prediction and Causality in Highway-Safety Analysis,"Analytic Methods in Accident Research, Vol. 25, Article 100113 (Keywords: app-based ridehailing, trivariate ordered probit model, adoption, frequency, consideration, Intermediate Public Transport, auto-rickshaw, share-auto).  PDF version, MS Word version

Chen, T., N.N. Sze, S. Saxena, A.R. Pinjari, C.R. Bhat, and L. Bai (2020), "Evaluation of Penalty and Enforcement Strategies to Combat Speeding Offences among Professional Drivers: A Hong Kong Stated Preference Experiment,"Accident Analysis and Prevention, Vol. 135, Article 105366 (Keywords: speeding, professional drivers, penalty, enforcement, stated preference survey, mixed multinomial logit).  PDF version, MS Word version

Moore, M.A., P.S. Lavieri, F.F. Dias, and C.R. Bhat (2020), "On Investigating the Potential Effects of Private Autonomous Vehicle Use on Home/Work Relocations and Commute Times," Transportation Research Part C, Vol. 110, pp. 166-185 (Keywords: autonomous vehicles, willingness to move, travel behavior, travel demand, value of travel time savings).  PDF version, MS Word version

Astroza, S., V.M. Garikapati, R.M. Pendyala, C.R. Bhat, and P.L. Mokhtarian (2019), "Representing Heterogeneity in Structural Relationships Among Multiple Choice Variables Using a Latent Segmentation Approach," Transportation, Vol. 46, No. 5, pp. 1755-1784 (Keywords: causal relationships, structural heterogeneity, simultaneous equations models, latent segmentation, joint estimation, vehicle ownership, residential location choice, mobility service usage).  PDF version, MS Word version

Lavieri, P.S., and C.R. Bhat (2019), "Investigating Objective and Subjective Factors Influencing the Adoption, Frequency, and Characteristics of Ride-hailing Trips," Transportation Research Part C, Vol. 105, pp. 100-125 (Keywords: ride-hailing, pooling, travel behavior, market adoption and use of disruptive mobility services, psycho-social latent variables, GHDM model). PDF version, MS Word version

Long, K., D. Capasso da Silva, F.F. Dias, S. Khoeini, A.C. Bhat, R.M. Pendyala, and C.R. Bhat (2019), "Role of Childhood Context and Experience in Shaping Activity-Travel Choices in Adulthood," Transportation Research Record, Vol. 2673, No. 7, pp. 575-585 (Keywords: vehicle ownership, transit use, childhood influences, traveler behavior, attitudes and perceptions).

Dias, F.F., P.S. Lavieri, T. Kim, C.R. Bhat, and R.M. Pendyala (2019), "Fusing Multiple Sources of Data to Understand Ride-Hailing Use," Transportation Research Record, Vol. 2673, No. 6, pp. 214-224 (Keywords: ride-hailing services, trip characteristics, user characteristics, mobility patterns, data fusion, secondary data).  PDF version, MS Word version

Nair, G.S., C.R. Bhat, R.M. Pendyala, B.P.Y. Loo, and W.H.K. Lam (2019), "On the Use of Probit-Based Models for Ranking Data Analysis," Transportation Research Record, Vol. 2673, No. 4, pp. 229-240 (Keywords: ranking; rank ordered probit (ROP); rank ordered logit (ROL); heteroskedastic ROL (HROL); heteroskedastic ROP (HROP); coefficient attenuation; stated preference).

Lavieri, P.S., and C.R. Bhat (2019), "Modeling Individuals' Willingness to Share Trips with Strangers in an Autonomous Vehicle Future," Transportation Research Part A, Vol. 124, pp. 242-261 (Keywords: value of travel time, willingness-to-share, ride-hailing, dynamic ridesharing, automated vehicles).  PDF version, MS Word version

Leung, K.Y.K., S. Astroza, B.P.Y. Loo, and C.R. Bhat (2019), "An Environment-People Interactions Framework for Analyzing Children's Extra-Curricular Activities and Active Transport," Journal of Transport Geography, Vol. 74, pp. 341-358 (Keywords: children's activity-travel behavior, MACML estimation, Hong Kong activity-travel, residential location, extra-curricular activity, active travel modes).  PDF version, MS Word version

Lavieri, P.S., F.F. Dias, N. Ruiz Juri, J. Kuhr, and C.R. Bhat (2018), "A Model of Ridesourcing Demand Generation and Distribution," Transportation Research Record, Vol. 2672, No. 46, pp. 31-40.  PDF version, MS Word version

Vinayak, P., F.F. Dias, S. Astroza, C.R. Bhat, R.M. Pendyala, and V.M. Garikapati (2018), "Accounting for Multi-Dimensional Dependencies Among Decision-Makers Within a Generalized Model Framework: An Application to Understanding Shared Mobility Service Usage Levels," Transport Policy, Vol. 72, pp. 129-137 (Keywords: spatial dependence, social interactions, attitudinal proximity, values and behavior, shared mobility service usage, latent constructs).

Lavieri, P.S., Q. Dai, and C.R. Bhat (2018), "Using Virtual Accessibility and Physical Accessibility as Joint Predictors of Activity-Travel Behavior," Transportation Research Part A, Vol. 118, pp. 527-544 (Keywords: ICT use, virtual/physical activity participation, GHMD model, time poverty, social exclusion, social roles).

Nair, G.S., S. Astroza, C.R. Bhat, S. Khoeini and R.M. Pendyala (2018), "An Application of a Rank Ordered Probit Modeling Approach to Understanding Level of Interest in Autonomous Vehicles," Transportation, Vol. 45, No. 6, pp. 1623-1637 (Keywords: rank ordered probit model, rank ordered data, travel demand modeling, autonomous vehicle adoption and usage).  PDF version, MS Word version

Astroza, S., P.C. Bhat, C.R. Bhat, R.M. Pendyala, and V.M. Garikapati (2018), "Understanding Activity Engagement Across Weekdays and Weekend Days: A Multivariate Multiple Discrete-Continuous Modeling Approach," Journal of Choice Modelling, Vol. 28, pp. 56-70 (Keywords: activity-travel demand, modeling weekly activity schedules, time allocation, multiple discrete-continuous probit model, weekday and weekend travel).

Singh, A.C., S. Astroza, V.M. Garikapati, R.M. Pendyala, C.R. Bhat, and P.L. Mokhtarian (2018), "Quantifying the Relative Contribution of Factors to Household Vehicle Miles of Travel," Transportation Research Part D, Vol. 63, pp. 23-36 (Keywords: vehicle miles of travel (VMT); Demographic effects; Built environment effects; Residential self-selection; Social-spatial dependence).

Bhat, C.R. (2018), "A New Flexible Multiple Discrete-Continuous Extreme Value (MDCEV) Choice Model," Transportation Research Part B, Vol. 110, pp. 261-279 (Keywords: multiple discrete-continuous choice models, multiple discrete-continuous extreme value model, utility theory, time use, consumer theory). 

Bhat, C.R. (2018), "New Matrix-Based Methods for the Analytic Evaluation of the Multivariate Cumulative Normal Distribution Function," Transportation Research Part B, Vol. 109, pp. 238-256 (Keywords: multivariate normal cumulative distribution function, multinomial probit, discrete choice models, econometric models).

Bhat, C.R., and P.S. Lavieri (2018), "A New Mixed MNP Model Accommodating a Variety of Dependent Non-Normal Coefficient Distributions," Theory and Decision, Vol. 84, No. 2, pp. 239-275 (Keywords: copula, heterogeneity, MACML, multinomial probit, choice modeling).  PDF version, MS Word version

Dias, F.F., P.S. Lavieri, V.M. Garikapati, S. Astroza, R.M. Pendyala, and C.R. Bhat (2017), "A Behavioral Choice Model of the Use of Car-Sharing and Ride-Sourcing Services," Transportation, 2017 TRB Annual Meeting Special Issue, Vol. 44, No. 6, pp. 1307-1323 (Keywords: ride-sourcing services, car-sharing services, bivariate ordered probit model, market adoption and use of disruptive mobility services, travel demand forecasting).

Bhat, C.R., S. Astroza, and P.S. Lavieri (2017), "A New Spatial and Flexible Multivariate Random-Coefficients Model for the Analysis of Pedestrian Injury Counts by Severity Level," Analytic Methods in Accident Research, Vol. 16, pp. 1-22 (Keywords: multivariate count model, spatial dependence, unobserved heterogeneity, composite marginal likelihood estimation, pedestrian injuries in traffic crashes).  PDF version, MS Word version

Astroza, S., P.N. Patil, K.I. Smith, and C.R. Bhat (2017), "Transportation Planning to Accommodate Needs of Wind Energy Projects," Transportation Research Record, Vol. 2669, pp. 10-18 (Keywords: wind energy production, planning tool, wind turbine components transportation, renewable energy, route planning).  PDF version, MS Word version

Astroza, S., V.M. Garikapati, C.R. Bhat, R.M. Pendyala, P.S. Lavieri, and F.F. Dias (2017), "Analysis of the Impact of Technology Use on Multimodality and Activity Travel Characteristics," Transportation Research Record, Vol. 2666, pp. 19-28 (Keywords: smartphone ownership, smartphone use, technology savviness, activity-travel characteristics, tour attributes, latent factors, mixed dependent variables, structural equations models).

Lavieri, P.S., V.M. Garikapati, C.R. Bhat, R.M. Pendyala, S. Astroza, and F.F. Dias (2017), "Modeling Individual Preferences for Ownership and Sharing of Autonomous Vehicle Technologies," Transportation Research Record, Vol. 2665, pp. 1-10 (Keywords: autonomous vehicles, travel behavior, lifestyle factors, vehicle sharing, vehicle ownership, GHDM).  PDF version, MS Word version

Lavieri, P., V.M. Garikapati, C.R. Bhat, and R.M. Pendyala (2017), "Investigation of Heterogeneity in Vehicle Ownership and Usage for the Millennial Generation," Transportation Research Record, Vol. 2664, pp. 91-99 (Keywords: behavioral heterogeneity, millennial generation, traveler behavior, vehicle ownership, commute mode choice, driver's license holding, simultaneous equations model, lifestyle preferences and latent constructs).

Astroza, S., A.R. Pinjari, C.R. Bhat, and S.R. Jara-Diaz (2017), "A Microeconomic Theory-based Latent Class Multiple Discrete-Continuous Choice Model of Time Use and Goods Consumption," Transportation Research Record, Vol. 2664, pp. 31-41 (Keywords: time use, goods consumption, multiple discrete-continuous model, value of time, value of leisure, value of work, technical constraints, minimum consumptions, corner solutions).

Patil, P.N., S.K. Dubey, A.R. Pinjari, E. Cherchi, R. Daziano, and C.R. Bhat (2017), "Simulation Evaluation of Emerging Estimation Techniques for Multinomial Probit Models," Journal of Choice Modelling, Vol. 23, pp. 9-20 (Keywords: discrete choice, GHK simulator, sparse grid integration, composite marginal likelihood (CML) method, MACML estimation, Bayesian Markov Chain Monte Carlo (MCMC)).

Yeh, E.R., J. Choi, N.G. Prelcic, C.R. Bhat, and R.W. Heath Jr. (2017), "Security in Automotive Radar and Vehicular Networks," Microwave Journal, Volume 60, Issue 5, pp. 148-165, May. PDF version 

Bhat, C.R., S. Astroza, and A. Hamdi (2017), "A Spatial Generalized Ordered-Response Model with Skew Normal Kernel Error Terms with an Application to Bicycling Frequency," Transportation Research Part B, Vol. 95, pp. 126-148 (Keywords: generalized ordered response model, skew normal distribution, social interactions, composite marginal likelihood, spatial econometrics, bicycling freqency).  PDF version, MS Word version

Choi, J., V. Va, N. Gonzalez-Prelcic, R. Daniels, C.R. Bhat, and R.W. Heath Jr. (2016), "Millimeter-Wave Vehicular Communication to Support Massive Automotive Sensing," IEEE Communications Magazine, Volume 54, Issue 12, pp. 160-167, December.  PDF version

Bhat, C.R., A.R. Pinjari, S.K. Dubey, and A. Hamdi (2016), " On Accommodating Spatial Interactions in a Generalized Heterogeneous Data Model (GHDM) of Mixed Types of Dependent Variables," Transportation Research Part B, Vol. 94, pp. 240-263 (Keywords: spatial econometrics, multidimensional mixed data models, latent variables, MACML estimation). 

Lavieri, P., C.R. Bhat, R.M. Pendyala, and V.M. Garikapati (2016), "Introducing Latent Psychological Constructs in Injury Severity Modeling: Multivehicle and Multioccupant Approach," Transportation Research Record, Vol. 2601, pp. 110-118 (Keywords: injury severity model, Generalized Heterogeneous Data Model (GHDM), latent variable modeling, driver behavior, safety interventions).

Ruiz Juri, N., R.M. James, N. Jiang, J. Duthie, A.R. Pinjari, and C.R. Bhat (2016), "Computation of Skims for Large-Scale Implementations of Integrated Activity-Based and Dynamic Traffic Assignment Models," Transportation Research Record, Vol. 2563, pp. 134-143.  PDF version, MS Word version

Kumar, V., C.R. Bhat, R.M. Pendyala, D. You, E. Ben-Elia, and D. Ettema (2016), "Impacts of Incentive-Based Intervention on Peak Period Traffic: Experience from the Netherlands," Transportation Research Record, Vol. 2543, pp. 166-175 (Keywords: travel demand management, voluntary travel behavior change, incentive-based scheme, mixed logit model).  PDF version, MS Word version

Motro, M., A. Chu, J. Choi, P.S. Lavieri, A.R. Pinjari, C.R. Bhat, J. Ghosh and R.W. Heath Jr. (2016), "Vehicular Ad-Hoc Network Simulations of Overtaking Maneuvers on Two-Lane Rural Highways," Transportation Research Part C, Vol. 72, pp. 60-76 (Keywords: two-lane rural highways, overtaking maneuvers, VANETs, connected vehicles, DSRC driver assistance systems).  PDF version, MS Word version

Jara-Diaz, S.R., S. Astroza, C.R. Bhat, and M. Castro (2016), "Introducing Relations between Activities and Goods Consumption in Microeconomic Time Use Models," Transportation Research Part B, Vol. 93, Part A, pp. 162-180 (Keywords: time use model, value of time, leisure, work, microeconomics, time management, utility theory, utility maximization).  PDF version, MS Word version

Mannering, F.L., V. Shankar, and C.R. Bhat (2016), "Unobserved Heterogeneity and the Statistical Analysis of Highway Accident Data," Analytic Methods in Accident Research, Vol. 11, pp. 1-16  (Keywords: highway safety, unobserved heterogeneity, accident likelihood, accident severity, statistical and econometric methods, statistical methods, accident analysis).  PDF version, MS Word version

Bhat, C.R., S. Astroza, A.C. Bhat, and K. Nagel (2016), "Incorporating a Multiple Discrete-Continuous Outcome in the Generalized Heterogeneous Data Model: Application to Residential Self-Selection Effects Analysis in an Activity Time-use Behavior Model," Transportation Research Part B, Vol. 91, pp. 52-76 (Keywords: latent factors, mixed dependent variables, structural equations models, MACML estimation approach, residential self-selection effect, land use-transportation, activity time-use). 

Bhat, C.R., S. Astroza, and A.C. Bhat (2016), "On Allowing a General Form for Unobserved Heterogeneity in the Multiple Discrete-Continuous Probit Model: Formulation and Application to Tourism Travel," Transportation Research Part B, Vol. 86, pp. 223-249 (Keywords: multiple discrete-continuous models, finite discrete mixture of normals, MACML approach, endogenous segmentation, recreational trips, long distance trips, tourism travel).  PDF version, MS Word version

Ziemke, D., K. Nagel, and C.R. Bhat (2015), "Integrating CEMDAP and MATSim to Increase the Transferability of Transport Demand Models," Transportation Research Record, Vol. 2493, pp. 117-125 (Keywords: activity-based demand modeling, agent-based simulation, transport modeling, model transferability).  PDF version, MS Word version

Wafa, Z., C.R. Bhat, R.M. Pendyala, and V.M. Garikapati (2015), "Latent-Segmentation-Based Approach to Investigating Spatial Transferability of Activity-Travel Models," Transportation Research Record, Vol. 2493, pp. 136-144 (Keywords: spatial transferability, activity-travel model, geographic contexts, MDCEV model, latent segmentation approach, regional similarity).  PDF version, MS Word version

Bhat, C.R., S.K. Dubey, M. Jobair Bin Alam, and W.H. Khushefati (2015), "A New Spatial Multiple Discrete-Continuous Modeling Approach to Land Use Change Analysis," Journal of Regional Science, Vol. 55, No. 5, pp. 801-841 (Keywords: spatial econometrics, multiple discrete-continuous model, random-coefficients, land use analysis, MACML approach).

Shin, J., C.R. Bhat, D. You, V.M. Garikapati, and R.M. Pendyala (2015), "Consumer Preferences and Willingness to Pay for Advanced Vehicle Technology Options and Fuel Types," Transportation Research Part C, Vol. 60, pp. 511-524 (Keywords: smart vehicle, advanced vehicular technology, consumer preference, willingness to pay, multiple discrete-continuous probit, mixed multinomial probit).  PDF version, MS Word version

Bhat, C.R., M. Castro, and A.R. Pinjari (2015), "Allowing for Complementarity and Rich Substitution Patterns in Multiple Discrete-Continuous Models," Transportation Research Part B, Vol. 81, No. 1, pp. 59-77 (Keywords: discrete-continuous system, multiple discreteness, Kuhn-Tucker demand systems, random utility maximization, non-additively separable utility form, transportation expenditure).  PDF version, MS Word version

Bhat, C.R. (2015), "A New Generalized Heterogeneous Data Model (GHDM) to Jointly Model Mixed Types of Dependent Variables," Transportation Research Part B, Vol. 79, pp. 50-77 (Keywords: latent factors, MACML estimation approach, mixed dependent variables, structural equations models, integrated land use-transportation modeling, factor analysis).

Bhat, C.R. (2015), "A Comprehensive Dwelling Unit Choice Model Accommodating Psychological Constructs Within A Search Strategy for Consideration Set Formation," Transportation Research Part B, Vol. 79, pp. 161-188 (Keywords: latent psychological constructs, MACML estimation approach, mixed dependent variables, structural equations models, integrated land use-transportation modeling, housing choices). 

Bhat, C.R. (2015), "A New Spatial (Social) Interaction Discrete Choice Model Accommodating for Unobserved Effects due to Endogenous Network Formation," Transportation, Vol. 42, No. 5, pp. 879-914 (Keywords: spatial interactions, social interactions, spatial lag, spatial drift, endogenous group formation, maximum approximate composite marginal likelihood, panel data). 

Bhat, C.R., R. Paleti, and M. Castro (2015), "A New Utility-Consistent Econometric Approach to Multivariate Count Data Modeling," Journal of Applied Econometrics, Vol. 30, No. 5, pp. 806-825  (Keywords: multivariate count data, generalized ordered-response, multinomial probit, multivariate normal distribution). 

Kamargianni, M., S. Dubey, A. Polydoropoulou, and C. Bhat (2015), "Investigating the Subjective and Objective Factors Influencing Teenagers' School Travel Mode Choice - An Integrated Choice and Latent Variable Model," Transportation Research Part A, Vol. 78, pp. 473-488 (Keywords: integrated choice latent variable (ICLV) models, multinomial probit (MNP), MNP kernel-based ICLV, walking, cycling, safety, green lifestyle, physical activity, school transportation, teenagers).

Bhat, C.R., S.K. Dubey, and K. Nagel (2015), "Introducing Non-Normality of Latent Psychological Constructs in Choice Modeling with an Application to Bicyclist Route Choice," Transportation Research Part B, Vol. 78, pp. 341-363 (Keywords: multivariate skew-normal distribution, multinomial probit, ICLV models, MACML estimation approach, bicyclist route choice).  PDF version, MS Word version

Bernardo, C., R. Paleti, M. Hoklas, and C.R. Bhat (2015), "An Empirical Investigation into the Time-Use and Activity Patterns of Dual-Earner Couples With and Without Young Children," Transportation Research Part A , Vol. 76, pp. 71-91 (Keywords: time-use, dual-earner households, social exclusion, time poverty, work-family balance, multiple-discrete choices).  PDF version, MS Word version

Paleti, R., C.R. Bhat, R.M. Pendyala, K.G. Goulias, T.J. Adler, and A. Bahreinian (2014), "Assessing the Impact of Transportation Policies on Fuel Consumption and Greenhouse Gas Emissions Using a Household Vehicle Fleet Simulator," Transportation Research Record, Vol. 2430, pp. 182-190  (Keywords: vehicle fleet composition modeling, vehicle miles prediction, microsimulation modeling, vehicle and population evolution model application, estimation of energy and greenhouse gas emissions).  PDF version, MS Word version

You, D., V.M. Garikapati, R.M. Pendyala, C.R. Bhat, S. Dubey, K. Jeon, and V. Livshits (2014), "Development of Vehicle Fleet Composition Model System for Implementation in Activity-Based Travel Model," Transportation Research Record, Vol. 2430, pp. 145-154 (Keywords: vehicle fleet composition, vehicle utilization, multiple discrete continuous extreme value (MDCEV) model, vehicle count modeling, travel demand forecasting).  PDF version, MS Word version

Garikapati, V.M., R. Sidharthan, R.M. Pendyala, and C.R. Bhat (2014), "Characterizing Household Vehicle Fleet Composition and Count by Type in Integrated Modeling Framework," Transportation Research Record, Vol. 2429, pp. 129-137 (Keywords: vehicle fleet composition modeling, multiple discrete continuous probit (MDCP) model, multivariate count model, joint model estimation, vehicle type choice, activity-travel modeling).  PDF version MS Word version

Born, K., S. Yasmin, D. You, N. Eluru, C.R. Bhat, and R.M. Pendyala (2014), "Joint Model of Weekend Discretionary Activity Participation and Episode Duration," Transportation Research Record, Vol. 2413, pp. 34-44  (Keywords: weekend activity participation, sample selection, copula, duration modeling, hazard profiles).  PDF version, MS Word version

Sanjust di Teulada, B., C.R. Bhat, and I. Meloni (2014), "Modeling the Propensity to Use a Sustainable Mode in the Context of a Program of Voluntary Change in Travel Behavior," Transportation Research Record, Vol. 2412, pp. 11-19 (Keywords: voluntary travel behavior change, panel binary probit, personalized travel plan).  PDF version, MS Word version

Bhat, C.R., S. Astroza, R. Sidharthan, M. Jobair Bin Alam, and W.H. Khushefati (2014), "A Joint Count-Continuous Model of Travel Behavior with Selection Based on a Multinomial Probit Residential Density Choice Model," Transportation Research Part B, Vol. 68, pp. 31-51 (Keywords: multivariate dependency; self-selection; treatment effects; maximum approximate composite marginal likelihood; land-use and built environment; travel behavior).  PDF version, MS Word version

Bhat, C.R., and S.K. Dubey (2014), "A New Estimation Approach to Integrate Latent Psychological Constructs in Choice Modeling," Transportation Research Part B, Vol. 67, pp. 68-85 (Keywords: multinomial probit, ICLV models, MACML estimation approach).

Bhat, C.R. (2014), "The Composite Marginal Likelihood (CML) Inference Approach with Applications to Discrete and Mixed Dependent Variable Models," Foundations and Trends in Econometrics, Vol. 7, No. 1, pp. 1-117 (Keywords: discrete choice modeling, econometric models, limited dependent variables, models for count data, qualitative response models, simultaneous equation models, choice modeling).  PDF version, MS Word version

Bhat, C.R., R. Paleti, and P. Singh (2014), "A Spatial Multivariate Count Model for Firm Location Decisions," Journal of Regional Science, Vol. 54, No. 3, pp. 462-502 (Keywords: multivariate analysis, spatial econometrics, business counts, composite marginal likelihood). 

Bhat, C.R., S. Astroza, R. Sidharthan, and P.C. Bhat (2014), "A Multivariate Hurdle Count Data Model with an Endogenous Multiple Discrete-Continuous Selection System," Transportation Research Part B, Vol. 63, pp. 77-97 (Keywords: multivariate count data, generalized ordered-response, multiple discrete-continuous models, hurdle model system, endogeneity).  PDF version, MS Word version

Mannering, F.L., and C.R. Bhat (2014), "Analytic Methods in Accident Research: Methodological Frontier and Future Directions," Analytic Methods in Accident Research, Vol. 1, pp. 1-22 (Keywords: highway safety, crash frequency, crash severity, econometric methods; statistical methods; accident analysis).  PDF version, MS Word version

Yasmin, S., N. Eluru, C. R. Bhat, and R. Tay (2014), "A Latent Segmentation based Generalized Ordered Logit Model to Examine Factors Influencing Driver Injury Severity," Analytic Methods in Accident Research, Vol. 1, pp. 23-38 (Keywords: latent segmentation, generalized ordered logit, driver injury severity, crash characteristics, elasticities).  PDF version, MS Word version

Bhat, C.R., K. Born, R. Sidharthan, and P.C. Bhat (2014), "A Count Data Model with Endogenous Covariates: Formulation and Application to Roadway Crash Frequency at Intersections," Analytic Methods in Accident Research, Vol. 1, pp. 53-71 (Keywords: count data; treatment-outcome models; accident analysis; generalized ordered response; flashing light control).  PDF version, MS Word version

Archer, M., R. Paleti, K.C. Konduri, R.M. Pendyala, and C.R. Bhat (2013), "Modeling the Connection Between Activity-Travel Patterns and Subjective Well-Being," Transportation Research Record, Vol. 2382, pp. 102-111 (Keywords: well-being, happiness, activity-travel patterns, time use, stress, multivariate model, ordered response).  PDF version, MS Word version

Bhat, C.R.,  R. Paleti, R.M. Pendyala, K. Lorenzini, and K.C. Konduri (2013), "Accommodating Immigration Status and Self Selection Effects in a Joint Model of Household Auto Ownership and Residential Location Choice," Transportation Research Record, Vol. 2382, pp. 142-150 (Keywords: immigrant travel, travel behavior models, bivariate multinomial probit, residential self-selection, auto ownership, residential location choice).  PDF version, MS Word version

Paleti, R., C.R. Bhat, and R.M. Pendyala (2013), "Integrated Model of Residential Location, Work Location, Vehicle Ownership, and Commute Tour Characteristics," Transportation Research Record, Vol. 2382, pp. 162-172 (Keywords: residential location choice, simultaneous equations model, self-selection effects, auto ownership, commute characteristics, multi-dimensional choice model estimation).  PDF version, MS Word version

Paleti, R., C.R. Bhat, R.M. Pendyala, and K.G. Goulias (2013), "Modeling of Household Vehicle Type Choice Accommodating Spatial Dependence Effects," Transportation Research Record, Vol. 2343, pp. 86-94 (Keywords: vehicle ownership, vehicle type choice, spatial dependence, unobserved heterogeneity, social interactions). 

Bhat, C.R., M. Castro, and M. Khan (2013), "A New Estimation Approach for the Multiple Discrete-Continuous Probit (MDCP) Choice Model," Transportation Research Part B, Vol. 55, pp. 1-22 (Keywords: multiple discrete-continuous model, maximum approximate composite marginal likelihood, recreation choice). 

Narayanamoorthy, S., R. Paleti, and C.R. Bhat (2013), "On Accommodating Spatial Dependence in Bicycle and Pedestrian Injury Counts by Severity Level," Transportation Research Part B, Vol. 55, pp. 245-264 (Keywords: multivariate count data, spatial econometrics, crash analysis, composite marginal likelihood).  PDF version, MS Word version

Bhat, C.R.,  K.G. Goulias, R.M. Pendyala, R. Paleti, R. Sidharthan, L. Schmitt, and H-H. Hu (2013), "A Household-Level Activity Pattern Generation Model with an Application for Southern California," Transportation, Vol. 40, No. 5, pp. 1063-1086 (Keywords: intra-household interactions, joint activity participation, multiple-discreteness, activity-based travel demand modeling).  PDF version, MS Word version

Paleti, R., and C.R. Bhat (2013), "The Composite Marginal Likelihood (CML) Estimation of Panel Ordered-Response Models," Journal of Choice Modelling, Vol. 7, pp. 24-43 (Keywords: ordered-response model, simulated likelihood, composite marginal likelihood, cross-sectional model, panel model).  

Abay, K.A., R. Paleti, and C.R. Bhat (2013), "The Joint Analysis of Injury Severity of Drivers in Two-Vehicle Crashes Accommodating Seat Belt Use Endogeneity," Transportation Research Part B, Vol. 50, pp. 74-89 (Keywords: multivariate ordered-response probit, crash analysis, injury severity modeling, seat belt use endogeneity, offsetting behavior, maximum simulated likelihood).  PDF version, MS Word version

Singh, P., R. Paleti, S. Jenkins, and C.R. Bhat (2013), "On Modeling Telecommuting Behavior: Option, Choice, and Frequency," Transportation, Vol. 40, No. 2, pp. 373-396 (Keywords: telecommuting, work-life balance, count data, generalized ordered response model, multivariate modeling). 

Castro, M., R. Paleti, and C.R. Bhat (2013), "A Spatial Generalized Ordered Response Model to Examine Highway Crash Injury Severity," Accident Analysis and Prevention, Vol. 52, pp. 188-203  (Keywords: crash injury severity, generalized ordered response model, unobserved heterogeneity, spatial dependence, highway crashes, composite marginal likelihood, spatial econometrics). 

Ferdous, N., and C.R. Bhat (2013), "A Spatial Panel Ordered-Response Model with Application to the Analysis of Urban Land-Use Development Intensity Patterns," Journal of Geographical Systems, Vol. 15, No. 1, pp. 1-29 (Keywords: spatial econometrics, panel data, random coefficients, urban land development intensity, composite marginal likelihood (CML) approach).  PDF version, MS Word version

Khan, M., R. Paleti, C.R. Bhat, and R.M. Pendyala (2012), "Joint Household-Level Analysis of Individuals' Work Arrangement Choices," Transportation Research Record, Vol. 2323, pp. 56-66 (Keywords: work arrangements, labor force participation, household interactions, individual choices, multivariate modeling, activity-travel behavior).  PDF version, MS Word version 

Seraj, S., R. Sidharthan, C.R. Bhat,  R.M. Pendyala, and K.G. Goulias (2012), "Parental Attitudes Towards Children Walking and Bicycling to School" Transportation Research Record, Vol. 2323, pp. 46-55 (Keywords: attitudes and values, children's mode choice, travel behavior, intra-household interactions, multivariate ordered response, composite marginal likelihood).  PDF version, MS Word version

Pendyala, R.M., C.R. Bhat, K.G. Goulias, R. Paleti, K.C. Konduri, R. Sidharthan, H.-H. Hu, G. Huang, and K.P. Christian (2012), "Application of Socioeconomic Model System for Activity-Based Modeling" Transportation Research Record, Vol. 2303, pp. 71-80 (Keywords: planning applications, model applications, socio-economic model system, synthetic population generation, activity model development, model validation and demonstration).  PDF version, MS Word version

Ferdous, N., L. Vana, J.L. Bowman, R.M. Pendyala, G. Giaimo, C.R. Bhat,  D. Schmitt, M. Bradley, and R. Anderson (2012), "Comparison of Four-Step Versus Tour-Based Models for Prediction of Travel Behavior Before and After Transportation System Changes," Transportation Research Record, Vol. 2303, pp. 46-60 (Keywords: trip-based model, MORPC tour-based model, vehicle ownership, work flow distribution, and highway projects).  PDF version, MS Word version

Kortum, K., R. Paleti, C.R. Bhat, and R.M. Pendyala (2012), "Joint Model of Residential Relocation Choice and Underlying Causal Factors," Transportation Research Record, Vol. 2303, pp. 28-37 (Keywords: residential location choice, residential move, causal factors, joint model, choice modeling).

Vyas, G., R. Paleti, C.R. Bhat,  K.G. Goulias, R.M. Pendyala, H.-H. Hu, T.J. Adler, and A. Bahreinian (2012), "Joint Vehicle Holdings by Type and Vintage, and Primary Driver Assignment Model with Application for California,"  Transportation Research Record, Vol. 2302, pp. 74-83 (Keywords: car ownership, car utilization, multiple-discreteness, driver allocation, SimAGENT).  PDF version, MS Word version

Sidharthan, R., and C.R. Bhat (2012), "Incorporating Spatial Dynamics and Temporal Dependency in Land Use Change Models," Geographical Analysis, Vol. 44, No. 4, pp. 321-349  (Keywords: spatial econometrics, spatial multipliers, discrete spatial panel, random-coefficients, land use analysis). 

Holguin-Veras, J., N. Xu, and C.R. Bhat (2012), "An Assessment of the Impacts of Inspection Times on the Airline Industry's Market Share after September 11th," Journal of Air Transport Management, Vol. 23, pp. 17-24 (Keywords: airport security screening, behavioral impacts, discrete choice modeling, extreme events, mixed logit). PDF version

Bhat, C.R., and R. Sidharthan (2012), "A New Approach to Specify and Estimate Non-Normally Mixed Multinomial Probit Models," Transportation Research Part B, Vol. 46, No. 7, pp. 817-833 (Keywords: multinomial probit, mixed models, maximum approximate composite marginal likelihood, maximum simulated likelihood, multivariate skew-normal distribution).

Castro, M., C.R. Bhat, R.M. Pendyala, S.R. Jara-Diaz (2012), "Accommodating Multiple Constraints in the Multiple Discrete-Continuous Extreme Value (MDCEV) Choice Model," Transportation Research Part B, Vol. 46, No. 6, pp. 729-743 (Keywords: travel demand, multiple discrete-continuous extreme value model, multiple constraints, time use, consumer theory).  PDF version, MS Word version

Whalen, K.E., A. Paez, C. Bhat, M. Moniruzzaman, and R. Paleti (2012), "T-communities and Sense of Community in a University Town: Evidence from a Student Sample using a Spatial Ordered-Response Model," Urban Studies, Vol. 49, No. 6, pp. 1357-1376 (Keywords: sense of community, t-communities, tertiary street network, university students, ordered-response probit model, spatial lag model, composite marginal likelihood).

Sener, I.N., and C.R. Bhat (2012), "Flexible Spatial Dependence Structures for Unordered Multinomial Choice Models: Formulation and Application to Teenagers' Activity Participation,"  Transportation, Vol. 39, No. 3, pp. 657-683 (Keywords: spatial econometrics, composite marginal likelihood, teenager activity behavior, unordered-response, discrete choice, copula).  PDF version, MS Word version

Sener, I.N., and C.R. Bhat (2012), "Modeling the Spatial and Temporal Dimensions of Recreational Activity Participation with a Focus on Physical Activities," Transportation, Vol. 39, No. 3, pp. 627-656 (Keywords: adult's recreational activity, physical activity, activity time use, urban form, activity location, activity timing, multiple discrete continuous models).  PDF version, MS Word version

LaMondia, J.J., and C.R. Bhat (2012), "A Conceptual and Methodological Framework of Leisure Activity Loyalty Accommodating the Travel Context," Transportation, Vol. 39, No. 2, pp. 321-349 (Keywords: leisure travel behavior, leisure loyalty, vacation travel, copula approach, ordered-response model).  PDF version, MS Word version

Bricka, S.G., S. Sen, R. Paleti, and C.R. Bhat (2012), "An Analysis of the Factors Influencing Differences in Survey-Reported and GPS-Recorded Trips," Transportation Research Part C, Vol. 21, No. 1, pp. 67-88  (Keywords: travel behavior, GPS technology, travel survey data collection techniques, trip detection algorithms). PDF version, MS Word version

Castro, M., R. Paleti, and C.R. Bhat (2012), "A Latent Variable Representation of Count Data Models to Accommodate Spatial and Temporal Dependence: Application to Predicting Crash Frequency at Intersections," Transportation Research Part B, Vol. 46, No. 1, pp. 253-272 (Keywords: count data, multivariate analysis, spatial econometrics, accident analysis, composite marginal likelihood, generalized ordered response). 

Portoghese, A., E. Spissu, C.R. Bhat, N. Eluru, and I. Meloni (2011), "A Copula-Based Joint Model of Commute Mode Choice and Number of Non-Work Stops during the Commute," International Journal of Transport Economics, Vol. 38, No. 3, pp. 337-364 (Keywords: Tour analysis, copula-based model, work commute, mode choice, stop making behavior).  PDF version, MS Word version

Chen, Y., S. Ravulaparthy, K. Deutsch, P. Dalal, S.Y. Yoon, T. Lei, K.G. Goulias, R.M. Pendyala, C.R. Bhat, and H-H. Hu (2011), "Development of Indicators of Opportunity-based Accessibility," Transportation Research Record, Vol. 2255, pp. 58-68 (Keywords: non-work activities, travel demand, discrete-continuous econometric model, choice set generation, latent choice modeling). PDF version

Castro, M., N. Eluru, C.R. Bhat, and R.M. Pendyala (2011), "Joint Model of Participation in Nonwork Activities and Time-of-Day Choice Set Formation for Workers," Transportation Research Record, Vol. 2254, pp. 140-150 (Keywords: non-work activities, travel demand, discrete-continuous econometric model, choice set generation, latent choice modeling). PDF version, MS Word version

Paleti, R., N. Eluru, C.R. Bhat, R.M. Pendyala, T.J. Adler, and K.G. Goulias (2011), "Design of Comprehensive Microsimulator of Household Vehicle Fleet Composition, Utilization, and Evolution," Transportation Research Record, Vol. 2254, pp. 44-57 (Keywords: vehicle fleet composition, household vehicle ownership, vehicle transactions and evolution, transportation demand forecasting, disaggregate microsimulation, behavioral choice model).  PDF version, MS Word version

Ferdous, N., R.M. Pendyala, C.R. Bhat, and K.C. Konduri (2011), "Modeling the Influence of Family, Social Context, and Spatial Proximity on Use of Nonmotorized Transport Mode," Transportation Research Record, Vol. 2230, pp. 111-120 (Keywords: walking, bicycling, activity duration, hazard function, composite marginal likelihood, unobserved effects, multilevel modeling, social and spatial interaction, normal scale mixture).  PDF version, MS Word version

Pinjari, A.R., R.M. Pendyala, C.R. Bhat, and P.A. Waddell (2011), "Modeling the Choice Continuum: An Integrated Model of Residential Location, Auto Ownership, Bicycle Ownership, and Commute Tour Mode Choice Decisions," Transportation, Vol. 38, No. 6, pp. 933-958 (Keywords: Multi-dimensional choice modeling, simultaneous equations model, tour mode choice, endogeneity, residential self-selection, built environment and travel behavior).  PDF version, MS Word version

Meloni, I., E. Spissu, and C.R. Bhat (2011), "The Effect of Personal Cap-and-Trade Mileage Policies on Individual Activity-Travel Patterns: The Activity Locator Project," Transportation Letters: The International Journal of Transportation Research, Vol. 3, No. 4, pp. 293-307 (Keywords: personal carbon emissions, activity-travel patterns, voluntary travel behavioral changes, Activity Locator).   PDF version, MS Word version

Sidharthan, R., C.R. Bhat, R.M. Pendyala, and K.G. Goulias (2011), "Model for Children's School Travel Mode Choice: Accounting for Effects of Spatial and Social Interaction," Transportation Research Record, Vol. 2213, pp. 78-86 (Keywords: Composite marginal likelihood, analytical approximations, spatial and social interactions, spatial econometrics, school mode choice, children's travel behavior).  PDF version, MS Word version

Bhat, C.R. (2011), "The Maximum Approximate Composite Marginal Likelihood (MACML) Estimation of Multinomial Probit-Based Unordered Response Choice Models," Transportation Research Part B, Vol. 45, No. 7, pp. 923-939 (Keywords: multinomial probit, mixed models, composite marginal likelihood, discrete choice models, spatial econometrics, panel data).

Bhat, C.R., and R. Sidharthan (2011), "A Simulation Evaluation of the Maximum Approximate Composite Marginal Likelihood (MACML) Estimator for Mixed Multinomial Probit Models," Transportation Research Part B, Vol. 45, No. 7, pp. 940-953 (Keywords: mixed multinomial probit, composite marginal likelihood, maximum simulated likelihood, discrete choice models, unordered-response models, panel data).  PDF version, MS Word version

Sener, I.N., C.R. Bhat, and R.M. Pendyala (2011), "When, Where, How Long, and With Whom are Individuals Participating in Physically Active Recreational Episodes?," Transportation Letters: The International Journal of Transportation Research, Vol. 3, No. 3, 201-217 (Keywords: Physical activity, social interaction, time use, multiple discreteness, maximum simulated likelihood).  PDF version, MS Word version

Sener, I.N., R.M. Pendyala, and C.R. Bhat (2011), "Accommodating Spatial Correlation Across Choice Alternatives in Discrete Choice Models: An Application to Modeling Residential Location Choice Behavior," Journal of Transport Geography, Vol. 19, No. 2, 294-303. (Keywords: spatial correlation, spatially correlated logit model, residential location choice, distance-decay function, activity-travel behavior modeling, discrete choice modeling).  PDF version, MS Word version

Paleti, R., R.B. Copperman, and C.R. Bhat (2011), "An Empirical Analysis of Children's After School Out-of-Home Activity-Location Engagement Patterns and Time Allocation," Transportation, Vol. 38, No. 2, pp. 273-304 (Keywords: children's activity patterns, children's time-use, discrete-continuous model systems, post-school travel, activity-based travel analysis).  PDF version, MS Word version

Sener, I.N., and C.R. Bhat (2011), "A Copula-Based Sample Selection Model of Telecommuting Choice and Frequency," Environment and Planning A, Vol. 43, No. 1, pp. 126-145 (Keywords: Telecommuting choice, telecommuting frequency, copula approach, revealed preference analysis, sample selection models, ordered-response structure).  PDF version, MS Word version

LaMondia, J.J., and C.R. Bhat (2011), "A Study of Visitors' Leisure Travel Behavior in the Northwest Territories of Canada," Transportation Letters: The International Journal of Transportation Research, Vol. 3, No. 1, pp. 1-19 (Keywords: Tourism travel behavior, combined leisure activity involvement, prior travel experience, Composite Marginal Likelihood, Multivariate Binary Probit).  PDF version, MS Word version

Sener, I.N., N. Eluru, and C.R. Bhat (2010), "On Jointly Analyzing the Physical Activity Participation Levels of Individuals in a Family Unit Using a Multivariate Copula Framework," Journal of Choice Modelling, Vol. 3, No. 3, pp. 1-38 (Keywords: Copulas, physical activity, family and public health, social dependency, data clustering, activity-based travel analysis).  PDF version, MS Word version

LaMondia, J., and C.R. Bhat (2010), "Development of a Microsimulation Analysis Tool for Paratransit Patron Accessibility in Small and Medium Communities," Transportation Research Record, Vol. 2174, pp. 29-38.  PDF version, MS Word version

Eluru, N., A.R. Pinjari, R.M. Pendyala, and C.R. Bhat (2010), "An Econometric Multi-Dimensional Choice Model of Activity-Travel Behavior," Transportation Letters: The International Journal of Transportation Research, Vol. 2, No. 4, pp. 217-230  (Keywords: activity type choice, time of day choice, activity duration, mode and destination choice, joint model, simultaneous equations model, integrated model, MDCEV-MNL model).  PDF version, MS Word version

Paleti, R., N. Eluru, and C.R. Bhat (2010), "Examining the Influence of Aggressive Behavior on Driver Injury Severity in Traffic Crashes," Accident Analysis and Prevention, Vol. 42, No. 6, pp. 1839-1854 (Keywords: Crash injury severity, graduated licensing programs (GDL), teenage drivers, driving aggressiveness, risk taking, parenting).

Eluru, N., R. Paleti, R.M. Pendyala, and C.R. Bhat (2010), "Modeling Injury Severity of Multiple Occupants of Vehicles: Copula-Based Multivariate Approach," Transportation Research Record, Vol. 2165, pp. 1-11 (Keywords: statistical methodology, copula-based approach, simultaneous equations model, injury severity modeling, vehicle crash analysis).  PDF version, MS Word version

Spissu, E., N. Eluru, I.N. Sener, C.R. Bhat, and I. Meloni (2010), "Cross-Clustered Model of Frequency of Home-Based Work Participation in Traditionally Off-Work Hours," Transportation Research Record, Vol. 2157, pp. 138-146.   (Keywords: Social and spatial dependency, composite marginal likelihood estimation, non-traditional work hours, multi-level modeling, cross-cluster analysis).  PDF version, MS Word version

LaMondia, J., T. Snell, and C.R. Bhat (2010), "Traveler Behavior and Values Analysis in the Context of Vacation Destination and Travel Mode Choices: European Union Case Study," Transportation Research Record, Vol. 2156, pp. 140-149.   PDF version, MS Word version

Bhat, C.R., I.N. Sener, and N. Eluru (2010), "A Flexible Spatially Dependent Discrete Choice Model: Formulation and Application to Teenagers' Weekday Recreational Activity Participation," Transportation Research Part B, Vol. 44, No. 8-9, pp. 903-921 (Keywords: Spatial econometrics, copula, composite marginal likelihood (CML) inference approach, children's activity, public health, physical activity). PDF version, MS Word version

Ferdous, N., N. Eluru, C.R. Bhat, and I. Meloni (2010), "A Multivariate Ordered Response Model System for Adults' Weekday Activity Episode Generation by Activity Purpose and Social Context," Transportation Research Part B, Vol. 44, No. 8-9, pp. 922-943 (Keywords: Composite Marginal Likelihood (CML) approach, social interactions, activity-based modeling, multivariate ordered probit model, American Time Use Survey (ATUS)).  PDF version, MS Word version

Eluru, N., C.R. Bhat, R.M. Pendyala, and K.C. Konduri (2010), "A Joint Flexible Econometric Model System of Household Residential Location and Vehicle Fleet Composition/Usage Choices," Transportation, 2010 TRB Special Issue, Vol. 37, No. 4, pp. 603-626 (Keywords: land use and travel behavior, residential location choice, vehicle type choice, vehicle usage, vehicle miles of travel, joint model, copula-based approach, simultaneous equations model).  PDF version, MS Word version

Ferdous, N., A.R. Pinjari, C.R. Bhat, and R.M. Pendyala (2010), "A Comprehensive Analysis of Household Transportation Expenditures Relative to Other Goods and Services: An Application to United States Consumer Expenditure Data," Transportation, Vol. 37, No. 3, pp. 363-390 (Keywords: consumer expenditure, transportation expenditure, fuel prices, vehicle operating expenses, multiple discrete continuous nested extreme value model, econometric modeling, evaluating impacts of fuel price increase).  PDF version, MS Word version

Pinjari, A.R., and C.R. Bhat (2010), "A Multiple Discrete-Continuous Nested Extreme Value (MDCNEV) Model: Formulation and Application to Non-Worker Activity Time-Use and Timing Behavior on Weekdays," Transportation Research Part B, Vol. 44, No. 4, pp. 562-583 (Keywords: multiple discrete-continuous choices, random utility maximization, Kuhn-Tucker demand model systems, Flexible substitution patters, activity time-use, activity timing). 

Sener, I.N., N. Eluru, and C.R. Bhat (2009), "Who are Bicyclists? Why and How Much are they Bicycling?," Transportation Research Record, Vol. 2134, pp. 63-72.  PDF version, MS Word version

Rajagopalan, B.S., A.R. Pinjari, and C.R. Bhat (2009), "Comprehensive Model of Worker Nonwork-Activity Time Use and Timing Behavior," Transportation Research Record, Vol. 2134, pp. 51-62.  PDF version, MS Word version

Eluru, N., I.N. Sener, C.R. Bhat, R.M. Pendyala, and K.W. Axhausen (2009), "Understanding Residential Mobility: Joint Model of the Reason for Residential Relocation and Stay Duration," Transportation Research Record, Vol. 2133, pp. 64-74 (Keywords: residential relocation, residential mobility, land use dynamics, joint choice modeling, endogeneity, sample selection).  PDF version, MS Word version

Lin, D-Y., N. Eluru, S.T. Waller, and C.R. Bhat (2009), "Evacuation Planning Using the Integrated System of Activity-Based Modeling and Dynamic Traffic Assignment," Transportation Research Record, Vol. 2132, pp. 69-77.  PDF version, MS Word version

Bhat, C.R., and I.N. Sener (2009), "A Copula-Based Closed-Form Binary Logit Choice Model for Accommodating Spatial Correlation Across Observational Units," Journal of Geographical Systems, Vol. 11, No. 3, pp. 243-272 (Keywords: Spatial analysis, copula, maximum likelihood estimation, teenager physical activity, public health).  PDF version, MS Word version

Sener, I.N., N. Eluru, and C.R. Bhat (2009), "An Analysis of Bicycle Route Choice Preferences in Texas, U.S.," Transportation, Vol. 36, No. 5, pp. 511-539 (Keywords: Bicycle route choice analysis, stated preference modeling, web-based survey, panel mixed multinomial logit, on-street parking).  PDF version, MS Word version

Spissu, E., A.R. Pinjari, C.R. Bhat, R.M. Pendyala, and K.W. Axhausen (2009), "An Analysis of Weekly Out-of-Home Discretionary Activity Participation and Time-Use Behavior," Transportation, Vol. 36, No. 5, pp. 483-510 (Keywords: activity-travel behavior, multiweek analysis, inter-personal variability, intra-personal variability, discrete-continuous model, panel data, unobserved factors).  PDF version, MS Word version

Bhat, C.R., and N. Eluru (2009), "A Copula-Based Approach to Accommodate Residential Self-Selection Effects in Travel Behavior Modeling," Transportation Research Part B, Vol. 43, No. 7, pp. 749-765 (Keywords: copula; multivariate dependency; self-selection; treatment effects; vehicle miles of travel; maximum likelihood; Archimedean copulas).

Pinjari, A.R., C.R. Bhat, and D.A. Hensher (2009), "Residential Self-Selection Effects in an Activity Time-use Behavior Model," Transportation Research Part B, Vol. 43, No. 7, pp. 729-748 (Keywords: Residential location choice, residential self-selection, time-use, multiple discrete-continuous extreme value model, integrated land use-transportation modeling).  PDF version, MS Word version

Spissu, E., A.R. Pinjari, R.M. Pendyala, and C.R. Bhat (2009), "A Copula-Based Joint Multinomial Discrete-Continuous Model of Vehicle Type Choice and Miles of Travel," Transportation, Vol. 36, No. 4, pp. 403-422 (Keywords: vehicle type choice, vehicle usage, vehicle miles of travel, copula-based approach, discrete-continuous choice modeling, travel behavior, greenhouse gas emissions, transportation energy consumption).  PDF version, MS Word version

Bhat, C.R., S. Sen, and N. Eluru (2009), "The Impact of Demographics, Built Environment Attributes, Vehicle Characteristics, and Gasoline Prices on Household Vehicle Holdings and Use," Transportation Research Part B, Vol. 43, No. 1, pp. 1-18 (Keywords: MDCEV model, gasoline prices, built environment, household vehicle holdings and use, vehicle make/model choice).  PDF version, MS Word version

Pinjari, A.R., N. Eluru, C.R. Bhat, R.M. Pendyala, and E. Spissu (2008), "Joint Model of Choice of Residential Neighborhood and Bicycle Ownership: Accounting for Self-Selection and Unobserved Heterogeneity," Transportation Research Record, Vol. 2082, pp. 17-26 (Keywords: built environment, bicycle ownership, simultaneous equations model, residential self-selection, unobserved heterogeneity, modeling cause-and-effect, neighborhood type).  PDF version, MS Word version

Eluru, N., A.R. Pinjari, J.Y. Guo, I.N. Sener, S. Srinivasan, R.B. Copperman, and C.R. Bhat (2008), "Population Updating System Structures and Models Embedded in the Comprehensive Econometric Microsimulator for Urban Systems," Transportation Research Record, Vol. 2076, pp. 171-182.   PDF version, MS Word version

Lin, D-Y., N. Eluru, S.T. Waller, and C.R. Bhat (2008), "Integration of Activity-Based Modeling and Dynamic Traffic Assignment," Transportation Research Record, Vol. 2076, pp. 52-61.    PDF version, MS Word version

LaMondia, J., C.R. Bhat, and D.A. Hensher (2008), "An Annual Time Use Model for Domestic Vacation Travel," Journal of Choice Modelling, Vol. 1, No.1, pp. 70-97 (Keywords: vacation, long distance, leisure activities, time use, choice modelling).  PDF version, MS Word version

Sener, I.N., R.B. Copperman, R.M. Pendyala, and C.R. Bhat (2008), "An Analysis of Children's Leisure Activity Engagement: Examining the Day of Week, Location, Physical Activity Level, and Fixity Dimensions," Transportation, Vol. 35, No. 5, pp. 673-696 (Keywords: children's activity participation, leisure activities, discrete continuous models, physical activity, structured activities, unobserved factors).  PDF version, MS Word version

Eluru, N., C.R. Bhat, and D.A. Hensher (2008), "A Mixed Generalized Ordered Response Model for Examining Pedestrian and Bicyclist Injury Severity Level in Traffic Crashes ," Accident Analysis and Prevention, Vol. 40, No. 3, pp. 1033-1054 (Keywords: injury severity, ordered-response model, pedestrian safety, bicyclist safety, non-motorized travel).  PDF version, MS Word version

Munizaga, M., S. Jara-Diaz, P. Greeven, and C.R. Bhat (2008), "Econometric Calibration of the Joint Time Assignment - Mode Choice Model," Transportation Science, Vol. 42, No. 2, pp. 208-219 (Keywords: travel behavior, demand forecasting, time assignment, mode choice, discrete/continuous econometrics).   PDF version, MS Word version

Srinivasan, S., and C.R. Bhat (2008), "An Exploratory Analysis of Joint-Activity Participation Characteristics Using the American Time Use Survey," Transportation, Vol. 35, No. 3, pp. 301-328 (Keywords: Joint activities and travel, American Time Use Survey, non-household companions).  PDF version, MS Word version

Bhat, C.R. (2008), "The Multiple Discrete-Continuous Extreme Value (MDCEV) Model: Role of Utility Function Parameters, Identification Considerations, and Model Extensions," Transportation Research Part B, Vol. 42, No. 3, pp. 274-303 (Keywords: Discrete-continuous system, multiple discreteness, Kuhn-Tucker demand systems, mixed discrete choice, random utility maximization).

Kapur, A., and C.R. Bhat (2007), "On Modeling Adults' Daily Time Use by Activity Purpose and Accompaniment Arrangement," Transportation Research Record, Vol. 2021, pp. 18-27 (Keywords: discretionary activities, adults' time use, weekend activity-travel behavior, activity based travel analysis, multiple discreteness). PDF version, MS Word version

Copperman, R., and C.R. Bhat (2007), "An Exploratory Analysis of Children's Daily Time-Use and Activity Patterns Using the Child Development Supplement (CDS) to the US Panel Study of Income Dynamics (PSID)," Transportation Research Record, Vol. 2021, pp. 36-44.  PDF version, MS Word version

Guo, J.Y., and C.R. Bhat (2007), "Population Synthesis for Microsimulating Travel Behavior," Transportation Research Record, Vol. 2014, pp. 92-101 (Keywords: Synthetic population, iterative proportional fitting, microsimulation, activity-based travel analysis).  PDF version, MS Word version

Guo, J.Y., C.R. Bhat, and R.B. Copperman (2007), "Effect of the Built Environment on Motorized and Non-Motorized Trip Making: Substitutive, Complementary, or Synergistic?," Transportation Research Record, Vol. 2010, pp. 1-11 (Keywords: Non-motorized travel, built environment design, trip frequency, mode use).  PDF version MS Word version

Sivakumar, A., and C.R. Bhat (2007), "A Comprehensive, Unified, Framework for Analyzing Spatial Location Choice," Transportation Research Record, Vol. 2003, pp. 103-111 (Keywords: Location choice, variety-seeking, spatial cognition, state dependence, activity-based analysis).   PDF version, MS Word version

Waddell, P., C.R. Bhat, N. Eluru, L. Wang, R.M. Pendyala (2007), "Modeling the Interdependence in Household Residence and Workplace Choices," Transportation Research Record, Vol. 2003, pp. 84-92 (Keywords: Residential location, workplace location, latent segmentation, discrete choice, behavioral decision-making, multi-dimensional choices).  PDF version

Sener, I.N., and C.R. Bhat (2007), "An Analysis of the Social Context of Children's Weekend Discretionary Activity Participation," Transportation, Vol. 34, No. 6, 697-721 (Keywords: Children's discretionary activity, children's time use, multiple discrete continuous models, weekend travel, activity-based travel analysis).  PDF version, MS Word version

Pinjari, A.R., R.M. Pendyala, C.R. Bhat, and P.A. Waddell (2007), "Modeling Residential Sorting Effects to Understand the Impact of the Built Environment on Commute Mode Choice," Transportation, Vol. 34, No. 5, pp. 557-573 (Keywords: causality, heterogeneity, joint model, built environment, residential self-selection, travel behavior).  PDF version, MS Word version

Eluru, N., and C.R. Bhat (2007), "A Joint Econometric Analysis of Seat Belt Use and Crash-Related Injury Severity," Accident Analysis and Prevention, Vol. 39, No. 5, pp. 1037-1049 (Keywords: seat belt use, crash injury severity, random coefficients, selective recruitment, discrete choice models with endogeneity).  PDF version, MS Word version

Bhat, C.R., and J.Y. Guo (2007), "A Comprehensive Analysis of Built Environment Characteristics on Household Residential Choice and Auto Ownership Levels," Transportation Research Part B, Vol. 41, No. 5, pp. 506-526 (Keywords: Built environment, residential sorting, self-selection, auto ownership, integrated land use-transportation modeling).  PDF version, MS Word version

Sall, E.A., and C.R. Bhat (2007), "An Analysis of Weekend Work Activity Patterns in the San Francisco Bay Area," Transportation, Vol. 34, No. 2, pp. 161-175 (Keywords: Weekend travel, weekend work, work time-of-day modeling, location choice, day of week/season effects).  PDF version, MS Word version

Copperman, R., and C.R. Bhat (2007), "An Analysis of the Determinants of Children's Weekend Physical Activity Participation," Transportation, Vol. 34, No. 1, pp. 67-87 (Keywords: Children's physical activity, children's time use, weekend activity-travel behavior, built environment, non-motorized travel). PDF version, MS Word version

Guo, J.Y., and C.R. Bhat (2007), "Operationalizing the Concept of Neighborhood: Application to Residential Location Choice Analysis," Journal of Transport Geography, Vol. 15, No. 1, pp. 31-45 (Keywords: Neighborhood, spatial definition, residential location choice, modifiable areal unit problem).  PDF version, MS Word version

Pinjari, A.R., and C.R. Bhat (2006), "On the Nonlinearity of Response to Level of Service Variables in Travel Mode Choice Models," Transportation Research Record, Vol. 1977, pp. 67-74 (Keywords: Willingness-to-pay measures, response heterogeneity, mixed multinomial logit model, nonlinear utility forms, travel time reliability).  PDF version, MS Word version

Bricka, S. and C.R. Bhat (2006), "A Comparative Analysis of GPS-Based and Travel Survey-based Data," Transportation Research Record, Vol. 1972, pp. 9-20.  PDF version, MS Word version

Warburg, V., C.R. Bhat, and T. Adler (2006), "Modeling Demographic and Unobserved Heterogeneity in Air Passengers' Sensitivity to Service Attributes in Itinerary Choice," Transportation Research Record, Vol. 1951, pp. 7-16.  PDF version, MS Word version

Srinivasan, S., and C.R. Bhat (2006), "A Multiple Discrete-Continuous Model for Independent- and Joint- Discretionary-Activity Participation Decisions," Transportation, 2006 TRB Special Issue, Vol. 33, No. 5, pp. 497-515 (Keywords: Discretionary activities, intra-household interactions, multiple discrete-continuous models).  PDF version, MS Word version

Srinivasan, S., C.R. Bhat, and J. Holguin-Veras (2006), "Empirical Analysis of the Impact of Security Perception on Intercity Mode Choice: A Panel Rank-Ordered Mixed-Logit Model," Transportation Research Record, Vol. 1942, pp. 9-15.  PDF version, MS Word version

Bhat, C.R., S. Srinivasan, and S. Sen (2006), "A Joint Model for the Perfect and Imperfect Substitute Goods Case: Application to Activity Time-Use Decisions," Transportation Research Part B, Vol. 40, No. 10, pp. 827-850 (Keywords: Multiple discrete-continuous extreme value (MDCEV) model, time-use, mixed models, weekend activity patterns, built environment).  PDF version, MS Word version

Bhat, C.R., and R. Sardesai (2006), "The Impact of Stop-Making and Travel Time Reliability on Commute Mode Choice," Transportation Research Part B, Vol. 40, No. 9, pp. 709-730 (Keywords: Travel time reliability, mixed logit, activity-based analysis, commute travel, mode choice, revealed preference-stated preference modeling).  PDF version, MS Word version

Bhat, C.R., and S. Sen (2006), "Household Vehicle Type Holdings and Usage: An Application of the Multiple Discrete-Continuous Extreme Value (MDCEV) Model," Transportation Research Part B, Vol. 40, No. 1, pp. 35-53.  PDF version, MS Word version

Lockwood, A., S. Srinivasan, and C.R. Bhat (2005), "An Exploratory Analysis of Weekend Activity Patterns in the San Francisco Bay Area," Transportation Research Record, Vol. 1926, pp. 70-78.  PDF version, MS Word version

Yeraguntla, A., and C.R. Bhat (2005), "A Classification Taxonomy and Empirical Analysis of Work Arrangements," Transportation Research Record, Vol. 1926, pp. 233-241.  PDF version, MS Word version

Louviere, J., K. Train, M. Ben-Akiva, C. Bhat, D. Brownstone, T.A. Cameron, R.T. Carson, J.R. DeShazo, D. Fiebig, W. Greene, D. Hensher, and D. Waldman (2005), "Recent Progress on Endogeneity in Choice Modeling," Marketing Letters, Special Issue: Sixth Invitational Choice Symposium, 16, 3-4, 255-265.  PDF version, MS Word version

Sivakumar, A., C.R. Bhat, and G. Okten (2005), "Simulation Estimation of Mixed Discrete Choice Models with the Use of Randomized Quasi-Monte Carlo Sequences: A Comparative Study," Transportation Research Record, Vol. 1921, pp. 112-122.

Bhat, C.R., S. Srinivasan, and K.W. Axhausen (2005), "An Analysis of Multiple Interepisode Durations Using a Unifying Multivariate Hazard Model," Transportation Research Part B, Vol. 39, No. 9, pp. 797-823.  PDF version, MS Word version

Srinivasan, S., and C.R. Bhat (2005), "Modeling Household Interactions in Daily In-Home and Out-of-Home Maintenance Activity Participation," Transportation, Vol. 32, No. 5, pp. 523-544 (Keywords: Discrete-continuous model, intra-household interactions, maintenance activity allocation, time-use analysis).  PDF version, MS Word version

Bhat, C.R. (2005), "A Multiple Discrete-Continuous Extreme Value Model: Formulation and Application to Discretionary Time-Use Decisions," Transportation Research Part B, Vol. 39, No. 8, pp. 679-707.  PDF version, MS Word version

Bhat, C.R., and S. Srinivasan (2005), "A Multidimensional Mixed Ordered-Response Model for Analyzing Weekend Activity Participation ," Transportation Research Part B, Vol. 39, No. 3, pp. 255-278 (Keywords: Multivariate mixed ordered response, weekend activity participation, activity-travel patterns, simulated maximum likelihood, day of week and season effects).  PDF version, MS Word version

Guo, J.Y., and C.R. Bhat (2004), "Modifiable Areal Units: Problem or Perception in Modeling of Residential Location Choice?," Transportation Research Record, Vol. 1898, pp. 138-147.  PDF version, MS Word version

Bhat, C.R., J.Y. Guo, S. Srinivasan, and A. Sivakumar (2004), "Comprehensive Econometric Microsimulator for Daily Activity-Travel Patterns," Transportation Research Record, Vol. 1894, pp. 57-66.  PDF version, MS Word version

Nerella, S., and C.R. Bhat (2004), "Numerical Analysis of Effect of Sampling of Alternatives in Discrete Choice Models," Transportation Research Record, Vol. 1894, pp. 11-19.  PDF version, MS Word version

Stinson, M.A., and C.R. Bhat (2004), "Frequency of Bicycle Commuting: Internet-Based Survey Analysis," Transportation Research Record, Vol. 1878, pp. 122-130.  PDF version, MS Word version

Bhat, C.R., and A. Lockwood (2004), "On Distinguishing Between Physically Active and Physically Passive Episodes and Between Travel and Activity Episodes: An Analysis of Weekend Recreational Participation in the San Francisco Bay Area," Transportation Research Part A, Vol. 38, No. 8, pp. 573-592 (Keywords: recreational activity, weekend activity-travel patterns, mixed multinomial logit, physical activity, activity-based travel analysis).  PDF version, MS Word version

Basar, G. and C.R. Bhat (2004), "A Parameterized Consideration Set Model for Airport Choice: An Application to the San Francisco Bay Area," Transportation Research Part B, Vol. 38, No. 10, pp. 889-904.  PDF version, MS Word version

Pendyala, R.M. and C.R. Bhat (2004), "An Exploration of the Relationship Between Timing and Duration of Maintenance Activities,"  Transportation, Vol. 31, No. 4, pp. 429-456 (Keywords: activity duration, activity timing, activity-travel behavior, causal structure, simultaneous equations, time of day).  PDF version, MS Word version

Bhat, C.R. and R. Gossen (2004), "A Mixed Multinomial Logit Model Analysis of Weekend Recreational Episode Type Choice," Transportation Research Part B, Vol. 38, No. 9, pp. 767-787 (Keywords: Weekend activity-pattern, recreational activity, mixed logit, activity-based travel modeling).  PDF version, MS Word version

Bhat, C.R., and J.Y. Guo (2004), "A Mixed Spatially Correlated Logit Model:  Formulation and Application to Residential Choice Modeling," Transportation Research Part B, Vol. 38, No. 2, pp. 147-168.  PDF version, MS Word version

Bhat, C.R., T. Frusti, H. Zhao, S. Schonfelder, and K.W. Axhausen (2004), "Intershopping Duration: An Analysis Using Multiweek Data," Transportation Research Part B , Vol. 38, No. 1, pp. 39-60 (Keywords: Multiday analysis, activity-travel behavior, intershopping duration, latent segmentation, hazard-based duration model, unobserved heterogeneity).  PDF version, MS Word version

Popuri, Y.D., and C.R. Bhat (2003), "On Modeling Choice and Frequency of Home-Based Telecommuting," Transportation Research Record, Vol. 1858, pp. 55-60.   PDF version, MS Word version

Rajamani, J., C.R. Bhat, S. Handy, G. Knaap, and Y. Song (2003), "Assessing the Impact of Urban Form Measures in Nonwork Trip Mode Choice After Controlling for Demographic and Level-of-Service Effects," Transportation Research Record, Vol. 1831, pp. 158-165.  PDF version, MS Word version

Misra, R., C.R. Bhat, and S. Srinivasan (2003), "Continuous Time Representation and Modeling Framework for Analysis of Nonworker Activity-Travel Patterns: Tour and Episode Attributes," Transportation Research Record, Vol. 1831, pp. 11-20.  PDF version, MS Word version

Nair, H.S., and C.R. Bhat (2003), "Modeling Trip Duration for Mobile Source Emissions Forecasting," Journal of Transportation and Statistics, Vol. 6, No. 1, pp. 17-32 (Keywords: trip duration, mobile source emissions, running loss emissions, operating mode fractions, local-road VMT, MOBILE emissions factor model).  PDF version, MS Word version

Stinson, M.A., and C.R. Bhat (2003), " Commuter Bicyclist Route Choice: Analysis Using a Stated Preference Survey", Transportation Research Record, Vol. 1828, pp. 107-115.

Bhat, C.R., A. Sivakumar, and K.W. Axhausen (2003), "An Analysis of the Impact of Information and Communication Technologies on Non-Maintenance Shopping Activities," Transportation Research Part B, Vol. 37, No. 10, pp. 857-881 (Keywords: Information and communication technologies, sample selection, random-coefficients, unobserved heterogeneity, hazard-based duration model, multiday analysis, activity-travel behavior, shopping behavior).  PDF version, MS Word version

Bhat, C.R. (2003), "Simulation Estimation of Mixed Discrete Choice Models Using Randomized and Scrambled Halton Sequences", Transportation Research Part B, Vol. 37, No. 9, pp. 837-855. (Keywords: Maximum simulated likelihood estimation, pseudo-random sequences, quasi-random sequences, hybrid sequences, multinomial probit model, mixed logit model, mixed probit model)

Frusti, T., C.R. Bhat, and K.W. Axhausen (2003), " An Exploratory Analysis of Fixed Commitments in Individual Activity-Travel Patterns", Transportation Research Record, Vol. 1807, pp. 101-108.

Waddell, P., M. Outwater, C.R. Bhat, and L. Blaine (2002), "Design of an Integrated Land Use and Activity-Based Travel Model System for the Puget Sound Region", Transportation Research Record, Vol. 1805, pp. 108-118.

Sivakumar, A. and C.R. Bhat (2002), " A Fractional Split Distribution Model for Statewide Commodity Flow Analysis", Transportation Research Record, Vol. 1790, pp. 80-88.

Ben-Akiva, M., D. McFadden, K. Train, J. Walker, C.R. Bhat, M. Bierlaire, D. Bolduc, A. Boersch-Supan, D. Brownstone, D.S. Bunch, A. Daly, A. de Palma, D. Gopinath, A. Karlstrom, and M.A. Munizaga (2002), "Hybrid Choice Models: Progress and Challenges ", Marketing Letters, Vol. 13, No. 3, pp. 163-175 (Keywords: choice modeling, mixed logit kernel, simulation, estimation, latent variables).

Bhat, C.R., and S. Castelar (2002), "A Unified Mixed Logit Framework for Modeling Revealed and Stated Preferences: Formulation and Application to Congestion Pricing Analysis in the San Francisco Bay Area", Transportation Research Part B, Vol. 36, No. 7, pp. 593-616 (Keywords: Revealed preference, stated preference, mixed logit, quasi-Monte Carlo simulation, state dependence, unobserved heterogeneity, congestion pricing).

Bhat, C.R., and H. Zhao (2002), "The Spatial Analysis of Activity Stop Generation", Transportation Research Part B, Vol. 36, No. 6, pp. 557-575 (Keywords: Spatial analysis, multi-level modeling, activity-based analysis, simulated maximum likelihood, Halton sequences, accessibility measure). PDF version, MS Word version

Bhat, C.R., and J.L. Steed (2002), "A Continuous-Time Model of Departure Time Choice for Urban Shopping Trips", Transportation Research Part B, Vol. 36, No. 3, pp. 207-224.

Bhat, C.R., and R. Misra (2002), "Comprehensive Activity-Travel Pattern Modeling System for Non-Workers with Empirical Focus on the Organization of Activity Episodes", Transportation Research Record, Vol. 1777, pp. 16-24.

Pozsgay, M.A., and C.R. Bhat (2002), "Destination Choice Modeling for Home-Based Recreational Trips: Analysis and Implications for Land-Use, Transportation, and Air Quality Planning", Transportation Research Record, Vol. 1777, pp. 47-54.

Nair, H.S., C.R. Bhat, and R.J. Kelly (2001), "Modeling Soak-Time Distribution of Trips for Mobile Source Emissions Forecasting: Techniques and Applications", Transportation Research Record, Vol. 1750, pp. 24-31 (Keywords: soak-time, mobile source emissions, start emissions, operating mode fractions, first starts, non-first starts, MOBILE emissions factor model).

Bhat, C.R. (2001), "Quasi-Random Maximum Simulated Likelihood Estimation of the Mixed Multinomial Logit Model", Transportation Research Part B, Vol. 35, No. 7, pp. 677-693.

Bhat, C.R. (2001), "Modeling the Commute Activity-Travel Pattern of Workers: Formulation and Empirical Analysis",  Transportation Science, Vol. 35, No. 1, pp. 61-79.

Bhat, C.R., and T.K. Lawton (2000), "Passenger Travel Demand Forecasting", Transportation in the New Millennium: State of the Art and Future Directions, Perspectives from Transportation Research Board Standing Committees, Transportation Research Board, National Research Council, Washington, D.C.

Bhat, C.R., and H. Nair (2000), "VMT Mix Modeling for Mobile Source Emissions Forecasting: Formulation and Empirical Application", Transportation Research Record, Vol. 1738, pp. 39-48 (Keywords: VMT mix, mobile-source emissions modeling, air quality analysis, fractional split model, emissions factors).

Misra, R., and C.R. Bhat (2000), "Activity Travel Patterns of Non-Workers in the San Francisco Bay Area: Exploratory Analysis", Transportation Research Record, Vol. 1718, pp. 43-51.

Steed, J., and C.R. Bhat (2000), "On Modeling the Departure Time Choice for Home-Based Social/Recreational and Shopping Trips", Transportation Research Record, Vol. 1706, pp. 152-159.

Bhat, C.R. (2000), "A Multi-Level Cross-Classified Model for Discrete Response Variables", Transportation Research Part B, Vol. 34, No. 7, pp. 567-582 (Keywords: Mixed logit model, multi-level analysis, spatial analysis, quasi-Monte Carlo sequences, data clustering, Gaussian quadrature, simulation-based econometric estimation, travel mode choice modeling).

Bhat, C.R. (2000), "Incorporating Observed and Unobserved Heterogeneity in Urban Work Mode Choice Modeling", Transportation Science, Vol. 34, No. 2, pp. 228-238.

Bhat, C.R., and S.K. Singh (2000), "A Comprehensive Daily Activity-Travel Generation Model System for Workers", Transportation Research Part A, Vol. 34, No. 1, pp. 1-22.

Bhat, C.R., J.P. Carini, and R. Misra (1999), "Modeling the Generation and Organization of Household Activity Stops", Transportation Research Record, Vol. 1676, pp. 153-161.

Bhat, C.R. (1999), "An Analysis of Evening Commute Stop-Making Behavior Using Repeated Choice Observations from a Multi-Day Survey", Transportation Research Part B, Vol. 33, No. 7, pp. 495-510 (Keywords: Ordered-response logit, unobserved heterogeneity, random-coefficients, heteroscedasticity, maximum simulated likelihood method, transportation control measures). PDF version, MS Word version

Bhat, C.R., and F.S. Koppelman (1999), "A Retrospective and Prospective Survey of Time-Use Research", Transportation, Vol. 26, No. 2, pp. 119-139 (Keywords: Time use research, activity-based travel modeling, activity episode analysis, time allocation, hazard-based duration model, activity scheduling). PDF version, MS Word version

Bhat, C.R., and R. Misra (1999), "Discretionary Activity Time Allocation of Individuals Between In-Home and Out-of-Home and Between Weekdays and Weekends", Transportation, Vol. 26, No. 2, pp. 193-209 (Keywords: Discretionary time allocation, in-home and out-of-home activity substitution, resource allocation, time-use analysis, utility-maximization).

Bhat, C.R., A. Govindarajan, and V. Pulugurta (1998), "Disaggregate Attraction-End Choice Modeling: Formulation and Empirical Analysis ", Transportation Research Record, Vol. 1645, pp. 60-68. PDF version

Bhat, C.R. (1998), "Accommodating Variations in Responsiveness to Level-of-Service Variables in Travel Mode Choice Modeling", Transportation Research Part A, Vol. 32, No. 7, pp. 495-507.

Bhat, C.R. (1998), "Accommodating Flexible Substitution Patterns in Multidimensional Choice Modeling: Formulation and Application to Travel Mode and Departure Time Choice", Transportation Research Part B, Vol. 32, No. 7, pp. 455-466 (Keywords: Nested logit model, error-components logit, mixed multinomial logit, simulation estimation technique, nonwork trip modeling, travel mode choice modeling, departure time analysis). PDF version, MS Word version

Bhat, C.R. (1998), "A Model of Post-Home Arrival Activity Participation Behavior", Transportation Research Part B, Vol. 32, No. 6, pp. 387-400.

Bhat, C.R. (1998), "An Analysis of Travel Mode and Departure Time Choice for Urban Shopping Trips", Transportation Research Part B, Vol. 32, No. 6, pp. 361-371 (Keywords: generalized extreme-value model, nonwork trips, congestion pricing, peak period pricing, traffic congestion). PDF version, MS Word version

Bhat, C.R., and V. Pulugurta (1998), "A Comparison of Two Alternative Behavioral Mechanisms for Car Ownership Decisions", Transportation Research Part B, Vol. 32, No. 1, pp. 61-75.

Bhat, C.R. (1997), "Work Travel Mode Choice and Number of Nonwork Commute Stops", Transportation Research Part B, Vol. 31, No. 1, pp. 41-54. PDF version, MS Word version

Bhat, C.R., "Covariance Heterogeneity in Nested Logit Models: Econometric Structure and Application to Intercity Travel", Transportation Research Part B, Vol. 31, No. 1, pp. 11-21, 1997.

Bhat, C.R. (1997), "An Endogenous Segmentation Mode Choice Model with an Application to Intercity Travel", Transportation Science, Vol. 31, No. 1, pp. 34-48. PDF version, MS Word version

Bhat, C.R. (1996), "A Generalized Multiple Durations Proportional Hazard Model with an Application to Activity Behavior During the Work-to-Home Commute", Transportation Research Part B, Vol. 30, No. 6, pp. 465-480 (Keywords: Proportional hazard, multiple durations, competing risks, activity-type choice, activity durations, work commute). PDF version, MS Word version

Bhat, C.R. (1996), "A Hazard-Based Duration Model of Shopping Activity with Nonparametric Baseline Specification and Nonparametric Control for Unobserved Heterogeneity", Transportation Research Part B, Vol. 30, No. 3, pp. 189-207. PDF version, MS Word version

Bhat, C.R. (1995), "A Heteroscedastic Extreme Value Model of Intercity Mode Choice", Transportation Research Part B, Vol. 29, No. 6, pp. 471-483. PDF version, MS Word version

Bhat, C.R. (1995), "Estimation of Travel Demand Models with Grouped and Missing Income Data", Transportation Research Record, Vol. 1443, pp. 45-53.

Bhat, C.R. (1994), "Imputing a Continuous Income Variable from Grouped and Missing Income Observations", Economics Letters, Vol. 46, No. 4, pp. 311-319. PDF version

Bhat, C.R., and F.S. Koppelman (1994), "A Structural and Empirical Model of Subsistence Activity Behavior and Income", Transportation, Vol. 21, No. 1, pp. 71-89. PDF version, MS Word version

Bhat, C.R., J.L. Schofer, F.S. Koppelman, and R.C. Bautch (1993), "Driver Recruitability for Advanced Traveler Information System Experiments", Transportation Research Part C, Vol. 1, No. 4, pp. 265-274.

Bhat, C.R., and F.S. Koppelman (1993), "An Endogenous Switching Simultaneous Equation System of Employment, Income, and Car Ownership", Transportation Research Part A, Vol. 27, No. 6, pp. 447-459. PDF version, MS Word version

Bhat, C.R., and F.S. Koppelman (1993), "A Conceptual Framework of Individual Activity Program Generation", Transportation Research Part A, Vol. 27, No. 6, pp. 433-446.

Koppelman, F.S., C.R. Bhat, and J.L. Schofer (1993), "Market Research Evaluation of Actions to Reduce Traffic Congestion: Commuter Travel Behavior and Response to Demand Reduction Actions", Transportation Research Part A, Vol. 27, No. 5, pp. 383-393.