In this paper, the authors study the capacity of key Automated Highway Systems (AHS) operating scenarios. The effect of the lane-flow rule, platooning or free-agent, as well as the lane barriers, on AHS capacity are studied. Special attention is paid to the interaction between the lane-flow rule...

In this paper, the authors address the problem of traffic surveillance in an Advanced Transportation Management System. They propose a new approach for detecting and tracking vehicles in road traffic scenes that attains a level of accuracy and reliability which lies beyond currently available...

This dissertation deals with the application of Advanced Traveler Information Systems (ATIS) in incident management. Using an idealized traffic corridor and deterministic queuing methods, conditions under which route guidance information is useful are identified. Benefits to traffic guided with...

This paper focuses on the role of standardization in managing and controlling an intelligent transportation system (ITS). The authors review activities and processes used by standards setting organizations. It is determined that standards address the needs for defining common interfaces for...

This research is aimed at the identification of all types of accidents that have occurred on freeways which may affect the vehicle movement in the assumed automated left lane. The emphasis was on six-lane or more urban freeways. The accident data was obtained from the California TASAS ( Traffic...

This study seeks to examine the potential impacts of Advanced Public Transportation Systems (APTS) technologies in terms of vehicle emissions, air quality, and fuel consumption. The potential impact of APTS technologies on pollutant emissions and fuel consumption are examined. The results invite...

This report addresses some of the important longitudinal vehicle modeling and control issues of Advanced Vehicle Control Systems (AVCS) such as brake dynamic model development and validation, decentralized longitudinal control algorithms which guarantee the stability of the entire platoon and...

This paper describes the specifications and the determinants for inclusion of a deliberative process to support intelligent transportation planning. Specifications for a system suitable for transportation planning have been defined, as have the determinants of a prototype for inclusion in early...

This report characterizes the statistical performance of the magnetic nails concept for estimating the positions of vehicles within their marked lanes. The report also presents a mathematical model for sensor noise due to the distortions of the earth field by regular patterns of ferrous...

The purpose of this report is to document the development of a platoon collision model which can be used to study platoon collision dynamics under emergency situations. Based on previous studies, the vehicle model within the platoon is implemented with two bumpers which are developed to meet the...