Traffic light system (traffic lights) for controlling traffic at bottlenecks

摘要

The system has a plurality of traffic lights A1 to A4 at different spacings S1 to S4, which at least approximately double from light to light, from the bottleneck E or a residual distance R in front of the bottleneck. In the normal state, these lights A1 to A4 are switched to green. If the vehicles remain stationary in the vicinity of a traffic light, the appropriate light is switched to red by means of sensor control. The lights are switched back from red to green periodically under time switch (clock timer) control. The duration of the switchback periods is likewise doubled from light to light, and the switchback instant of the light A4 most remote from the bottleneck E coincides with a switchback instant of all the other lights A1 to A3.