Aid to disabled motorists : responsive electronic vehicular instrumentation system. Paper presented at the 54th Annual Meeting of the Transportation Research Board, Washington, January 1975.

A responsive electronic vehicular instrumentation system (REVIS) is explained. Using low-cost, highly reliable integrated circuits, a system that detects highway incidents independent of traffic flow rates, is designed. A benefit-cost analysis indicated that, for controlled-access rural highways, REVIS is superior to the highway patrol in detecting incidents or disablements.