In this report, a combined longitudinal and lateral eighteen-state vehicle chassis, engine, and drive train model is developed and validated against existing longitudinal-only and lateral-only vehicle models. The full-size model is simplified to a three-state model to facilitate controller...

This report describes a multi-year effort to simulate the Santa Monica Freeway Corridor in Los Angeles using the INTEGRATION computer simulation model, and to investigate the potential benefits of Intelligent Transportation Systems (ITS). The simulation process involved a massive data collection...

Describes the computer program BTS which is a macroscopic tool for simulating the performance of freeway bottlenecks

Evaluation of BRT systems SmartBRT is for designed for modeling and simulating hypothetical transit systems, especially those making use of Bus Rapid Transit (BRT) technologies and policies. SmartBRT can be used to evaluate new technologies and policies that haven't been fully explored in...

This report documents our validation effort on the Incremental Transfer (IT) model, which is a macroscopic traffic flow model capable of handling freeway systems with special lanes and priority vehicles. The validation study is performed with field data from a 1.7-mile long freeway segment with...

This project (MOU276) represents the first third of a longer project concerning making cities more accessible to some disabled groups by addressing some problems associated with the use of public transit. (The other two-thirds of the larger project is continued as MOU343). The disabled groups...

This report presents the results of Phase 2 of a multi-year research effort on "Field Investigation of Advanced Vehicle Reidentification Techniques and Detector Technologies." Phase I of this research was conducted under PATH MOU 3008. Phases I and II of this research extended previous PATH...

Traffic congestion will continue to worsen and likely worsen at a faster rate than ever. People throughput and freight throughput have become critical issues for California and the rest of the nation. PATH has funded with approximately $125K a research project entitled "Evaluation of Bus and...

This study investigates issues concerning the implementation and impacts of lateral guidance/control systems and the phased implementation of these systems in exclusive-access High Occupancy Vehicle (HOV) lanes. The study is divided into 5 volumes. The objectives of each volume are as follows:...

This continuing PeMS project had four tasks: 1. Quantify the reduction in delay from optimum freeway operations; 2. Release travel time estimates to the public; 3. Training Caltrans staff in the use of PeMS; 4. Improve system robustness/maintenance. For task 1, we developed and implemented an...