Abstract
The first author addresses the topic of intelligent vehicle/highway systems technologies, which fall into three categories: technologies that are strictly on board the vehicle; technologies that are strictly external to the vehicle, but provide useful information to drivers; and a combination of the two. The second author considers the applications of computers, in conjunction with other engineering and management innovations, to improve highway operations. This paperappears in transportation research record no. 1243, Future of statewide transportation planning.