Concepedia

Abstract

A two-and-a-half year, Federal Highway Administration sponsored program was begun by Hughes Aircraft and JHK during the fall of 1991 to determine the types of traffic parameter data and the associated accuracies required for vehicle detection in Intelligent Vehicle-Highway System (IVHS) applications. These include interconnected intersection control, isolated intersection control, real-time traffic adaptive control, freeway incident detection, freewway metering, and traffic data collection. Production and late prototype models of detectors based on technologies such as microwave radar, passive and active infrared, ultrasound, acoustic, video image processing, inductive loops, and magneto-meters are to be tested and evaluated in three states that exhibit widely divergent climates.