Patent ID: 6223125
Filing Date: 2001-04-24
Classification: G08G

Abstract:
A collision avoidance system, comprising:a) a plurality of vehicle trigger sensors each associated with a roadway, each said vehicle trigger sensor capable of sensing at least one parameter of one or more vehicles;b) a plurality of vehicle restrictors each associated with said roadway, each said restrictor comprising an elongate member disposed generally transverse to said roadway, each said restrictor capable of being actuated to raise or lower relative to said roadway surface to impede passage thereover of said vehicles; andc) a controller programmed to determine the likelihood of a collision between any of said vehicles based on said vehicle parameters received from said trigger sensors, programmed to determine which of a selected one or more of said vehicles should be slowed or stopped to avoid said collision based on said vehicle parameters and based on local traffic laws, and programmed to determine at least one selected vehicle restrictor that is being approached by said selected vehicle, wherein said at least one selected vehicle restrictor is actuated by communication from said controller to impede the passage of said selected vehicle to avoid said collision.