The research reported in this document uses Total Factor Productivity (TFP) techniques, with which we develop measures of productivity performance of public transit systems of varying sizes and locations, and use this baseline to examine the potential contribution of alternative ITS...

The project "Lateral Control of Heavy Duty Vehicles for Automated Highway Systems" (MOU 313) represents continuation of the heavy vehicle research in PATH which was initiated in 1993 with MOU 129, "Steering and Braking Control of Heavy Duty Vehicles" and was followed with MOU 242, "Steering and...

The OCTA (Orange County Transit Authority) Transit Probe Project is a field operational test of an automatic-vehicle-location (AVL) system operating in Orange County, California. This report presents the final evaluation results for the project, concentrating on the operational period from June...

This report presents the results of an evaluation of project in which spread spectrum radio networks (SSRN) were used for traffic monitoring and control in the City of Los Angeles. The focus of SSRN is to reduce construction costs, construction time and future plant maintenance costs. A field...

This report presents a linear analysis of a tractor semitrailer model. The analysis is followed by the design of a simple linear controller for lane following. Offtracking analysis is presented for a single unit vehicle and tractor semitrailer. This analysis is independent of the control design....

This report presents two performance enhancement lateral control designs for single unit heavy vehicles. It is shown that robust performance can be achieved using the techniques on a feedback linearized system.

This report continues work on the design of a health monitoring system for automated vehicles. The approach is designed to fuse data from dissimilar instruments using modeled dynamic relationships and fault detection and identification filters. Issues relating to sensor models, output...