Screen for use in street traffic light, is mechanically fastened by adhesive or bolts, where green phase of traffic light is displayed as square, and stop signal or red phase of traffic light is displayed as circle

摘要

The screen is mechanically fastened by an adhesive or bolts. The screen is made of plastic, aluminum or weatherproof cardboard. A yellow signal or yellow phase of a traffic light is displayed as triangle and a green signal or green phase of the traffic light is displayed as square. A stop signal or a red phase of the traffic light is displayed as a circle.