In this paper, the authors discuss the use of vehicles moving in traffic as probes that provide data for estimation and prediction of traffic behavior. The probe vehicles can report data on their speeds, locations, or travel times which can be used by an algorithm that updates estimates of...

In this paper, the author contends that in order to produce and capture useful knowledge, early Intelligent Transportation Systems (ITS) projects should be local, small, and focused on realistic goals. The importance of cooperative networks that support knowledge acquisition and diffusion is...

This report is concerned with the modeling and control issues regarding braking in an Intelligent Transportation Systems (ITS) setting. Specifically, it addresses the issue of vehicle control in an automated highway system, brake actuation and coordinated brake and throttle switching. It first...

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...