Abstract :
Although high-speed, electrically powered surface and subsurface transportation will help to alleviate future traffic congestion in some localities, a majority of the public will probably continue to prefer the mobility, privacy, and freedom afforded by the automobile. Therefore, some form of automation for individual vehicles appears to be desirable¿in fact, necessary¿ if complete highway chaos is to be avoided. The approach described in this article involves the concept of a dual-mode system, whereby the vehicle (which must be specially equipped) is manually controlled on nonautomated roads and automatically controlled on automated ones.
