Patent ID: 6809656
Filing Date: 2004-10-26
Classification: G08G

Abstract:
A method for warning a vehicle driver of excessive speed, said method comprising the steps of:(a) providing a screen for visually displaying the speed of a vehicle, said screen including a display having electrically responsive indicia for displaying at least two numeric digits, (b) positioning said screen at a roadside location where the display can be seen by a driver of an approaching vehicle, (c) measuring the actual speed of an approaching vehicle, (d) comparing said actual speed with a selected threshold speed that is related to the legal speed limit for the road by which said screen is positioned, (e) exhibiting the measured vehicle speed on said screen in subdued, steady state digits when the vehicle speed is below said threshold speed, and (f) exhibiting the measured vehicle speed on said screen by displaying the digits in a highly visible, warning state corresponding to the vehicle speed when the speed of the vehicle is above said threshold, whereby to warn the driver that the threshold speed has been exceeded.