Research Summary
Dr. Gayah's research interests are in the areas of urban mobility, traffic flow theory, transportation operations, transportation network modeling, and transportation safety.
In the News
Research Keywords
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Recent Publications
Copula-based bivariate count data regression models for simultaneous estimation of crash counts based on severity and number of vehicles
Ahmad, N., Gayah, V. V. & Donnell, E. T., Mar 2023, In: Accident Analysis and Prevention. 181, 106928.Research output: Contribution to journal › Article › peer-review
A population-based incremental learning algorithm to identify optimal location of left-turn restrictions in urban grid networks
Bayrak, M., Yu, Z. & Gayah, V. V., 2023, In: Transportmetrica B. 11, 1, p. 528-547 20 p.Research output: Contribution to journal › Article › peer-review
Decentralized arterial traffic signal optimization with connected vehicle information
Liang, X., Guler, S. I. & Gayah, V. V., 2023, In: Journal of Intelligent Transportation Systems: Technology, Planning, and Operations. 27, 2, p. 145-160 16 p.Research output: Contribution to journal › Article › peer-review
Scale effects in ridesplitting: A case study of the City of Chicago
Liu, H., Devunuri, S., Lehe, L. & Gayah, V. V., Jul 2023, In: Transportation Research Part A: Policy and Practice. 173, 103690.Research output: Contribution to journal › Article › peer-review
Total-delay-based Max Pressure: A Max Pressure Algorithm Considering Delay Equity
Liu, H. & Gayah, V. V., Jun 2023, In: Transportation Research Record. 2677, 6, p. 324-339 16 p.Research output: Contribution to journal › Article › peer-review
Crash classification based on manner of collision: a comparative analysis
Mahmud, A., Sengupta, A. & Gayah, V. V., 2023, (Accepted/In press) In: Transportation Letters.Research output: Contribution to journal › Article › peer-review
Estimation of crash type frequency accounting for misclassification in crash data
Mahmud, A., Gayah, V. V. & Paleti, R., May 2023, In: Accident Analysis and Prevention. 184, 106998.Research output: Contribution to journal › Article › peer-review
Estimation of VMT using heteroskedastic log-linear regression models
Mahmud, A., Hamilton, I., Gayah, V. V. & Porter, R. J., 2023, (Accepted/In press) In: Transportation Letters.Research output: Contribution to journal › Article › peer-review
Do existing split failure metrics accurately reflect pedestrian operation at signalized intersections?
Runa, F., Guler, S. I. & Gayah, V. V., 2023, (Accepted/In press) In: International Journal of Transportation Science and Technology.Research output: Contribution to journal › Article › peer-review
Development and evaluation of frameworks for real-time bus passenger occupancy prediction
Wood, J., Yu, Z. & Gayah, V. V., Jun 2023, In: International Journal of Transportation Science and Technology. 12, 2, p. 399-413 15 p.Research output: Contribution to journal › Article › peer-review
Non-unimodal and non-concave relationships in the network Macroscopic Fundamental Diagram caused by hierarchical streets
Xu, G. & Gayah, V. V., Jul 2023, In: Transportation Research Part B: Methodological. 173, p. 203-227 25 p.Research output: Contribution to journal › Article › peer-review
Opposing Hysteresis Patterns in Flow and Outflow Macroscopic Fundamental Diagrams and Their Implications
Xu, G., Zhang, P., Gayah, V. V. & Hu, X., Aug 2023, In: Transportation Research Record. 2677, 8, p. 100-117 18 p.Research output: Contribution to journal › Article › peer-review
Simulation analysis of urban network performance under link disruptions: Impacts of information provisions in different street configurations
Yu, Z. & Gayah, V. V., 2023, In: Journal of Intelligent Transportation Systems: Technology, Planning, and Operations. 27, 4, p. 471-487 17 p.Research output: Contribution to journal › Article › peer-review
Improving Deep Reinforcement Learning-Based Perimeter Metering Control Methods With Domain Control Knowledge
Zhou, D. & Gayah, V. V., Jul 2023, In: Transportation Research Record. 2677, 7, p. 384-405 22 p.Research output: Contribution to journal › Article › peer-review
Scalable multi-region perimeter metering control for urban networks: A multi-agent deep reinforcement learning approach
Zhou, D. & Gayah, V. V., Mar 2023, In: Transportation Research Part C: Emerging Technologies. 148, 104033.Research output: Contribution to journal › Article › peer-review