How to Build an Automatic Traffic Light Control Circuit, Fun, and easy to ncustomize. This is a common design for traffic control , this circuit ndemonstrates simple two way traffic light simulation. The time of switching of nthe lights are in proportions,
3/10 green
2/10 yellow
5/10 nred

Order of Logic Gates - Clock, Pulse Shortner, RS Nor Latch Array, nEncoder (Shift Register) Or Gates, Decoder, Traffic Lights.