Patent ID: 6045293
Filing Date: 2000-04-04
Classification: E01F

Abstract:
A vehicle trafficway controller disposed transversely of a trafficway surface over which vehicular traffic is to pass, with a traffic free-flow condition and a person friendly driver intimidating wrong-way traffic condition for causing vehicle tire tread damage, and including:a frame rotatably supporting a shaft that carries a base member with a socket on an axis projecting tangentially from said shaft and with a bottom shoulder,a vertically retractile tire tread piercing member received in the socket and seated upon said bottom shoulder and secured in position by said bottom shoulder and having a tread piercing point shiftable from an extended position above said trafficway surface to a retracted position below said surface,a movable person protective cover means for engaging over and isolating the point of the tire tread piercing member from contact with and injury to a person when positioned in said person friendly driver intimidating wrong-way traffic condition, and forcefully movable from and exposing said tire tread piercing point to a tire tread rolling thereover in said person friendly driver intimidating wrong-way traffic condition,and means for alternately positioning the tire tread piercing member is said extended and retracted positions.