We compare the energy efficiency of hybrid and fuel cell vehicles as well as conventional internal combustion engines. Our analysis indicates that fuel cell vehicles using hydrogen from fossil fuels offer no significant energy efficiency advantage over hybrid vehicles operating in an urban drive cycle. We conclude that priority should be placed on hybrid vehicles by industry and government.

Emergency vehicles, while usually equipped with warning sirens and/or beacons, are still often impeded by other traffic and involved in numerous collisions. An effective warning system for alerting other vehicles that an emergency vehicle is approaching is therefore crucial. Current research is investigating the use of wireless communication from emergency vehicles to warn other traffic. Howeve...

This paper reports on a large scale field experiment testing strategies available to a seller participating in simultaneous competitive sequential, ascending price automobile auctions. Every other week, the seller offered approximately 120 vehicles for sale in an auction environment in which several competitive sellers offered on the order of 3,000 vehicles. The experiment tested various sequen...

In this paper we introduce a 'vehicle tracking' task, which tests the ability of a driver to track the location of multiple vehicles on the roadway. Based on the 'multiple object tracking' task (Pylyshyn & Storm, 1988), the vehicle tracking task presents the driver with an array of identical vehicles immediately in front of the subject vehicle. The task consists of three distinct stages: encodi...

in vehicular ad hoc networks there is the ability to communicate between vehicles. this communication which is wireless should be rapid and reliable. these networks have unique characteristic. this communication among vehicles has many advantages in safety and comfort applications. since, the roads are always encountered to accidents and risks, using optimized tools could be useful in these sit...

The Department of Homeland Security monitors vehicles entering and leaving the country at land ports of entry. Some vehicles are targeted to search for drugs and other contraband. Customs and Border Protection agents believe that vehicles involved in illegal activity operate in groups. If the criminal links of one vehicle are known then their border crossing patterns can be used to identify oth...