Analysts today would like to assess the emissions impacts likely to result from future implementation of intelligent vehicle and highway system (IVHS) concepts. This requires making assumptions about the simultaneous emergence of technologies and policies. Assumptions about emission characteristics of the future vehicle fleet, the penetration of electric vehicle technologies, and the impacts on...

Introduction Geographic information systems (GIS) have developed rapidly in recent years for many uses and users. Our experience in the United States of America is that GIS for Transportation (GIST) systems have become one of the standard tools which many State departments of transportation, as well as Federal transportation agencies, rely. In the last two or three years, Intelligent Vehicle Hi...

22 23 Implementation of highway-rail grade crossing warning systems, educational programs and 24 research on crossings have all contributed to a steady reduction in the risk to highway users of 25 grade crossings over the past several decades. Much less attention has been given to 26 understanding the effect of grade crossings on train safety and risk. Collisions at highway-rail 27 grade crossi...

One of the most pressing issues facing state departments of transportation (DOTs) is highway noise, particularly in urban areas. Where autos are the predominant vehicles on high-speed facilities, most of the noise is generated at the tire-pavement interface. The impact of tire-pavement noise lessens as the percentage of trucks increase and other elements of highway noise—vehicle drive trains an...

A stochastic automaton can perform a finite number of actions in a random environment. When a specific action is performed, the environment responds by producing an environment output that is stochastically related to the action. The aim is to design an automaton, using an evolutionary reinforcement scheme (the basis of the learning process), that can determine the best action guided by past ac...

A stochastic automaton can perform a finite number of actions in a random environment. When a specific action is performed, the environment responds by producing an environment output that is stochastically related to the action. The aim is to design an automaton, using a reinforcement scheme based on the computational model of wasp behaviour that can determine the best action guided by past ac...

We comparatively assess the influence of adaptive cruise control (ACC) and cooperative adaptive cruise control (CACC) systems on highway traffic flow characteristics, with highway merging as an example. The primary goal is to study the design and implementation of vehicle-vehicle/roadside-vehicle communication system, which enhances an ACC system to a CACC one. In addition, the impact of market...

A Highway Intelligent Space System (HISS) is proposed to study vehicle environment perception in this paper. The nature of HISS is that a space sensors system using laser, ultrasonic or radar sensors are installed in a highway environment and communication technology is used to realize the information exchange between the HISS server and vehicles, which provides vehicles with the surrounding ro...

In this paper we present an integrated traffic management and control approach for Intelligent Vehicle Highway Systems (IVHS). These IVHS consist of interacting roadside controllers and intelligent vehicles that are organized in platoons with short intraplatoon distances, and larger distances between platoons. All vehicles are assumed to be fully automated, i.e., throttle, braking, and steering...