What is The input and the output of the traffic light?

The input of a traffic light typically consists of data from various sources such as vehicle sensors, pedestrian buttons, and timers that determine traffic flow and pedestrian needs. The output is the visual signals displayed by the traffic light, which include red, yellow, and green lights indicating when vehicles and pedestrians should stop or go. The system may also provide alerts for emergency vehicles or adjust timings based on real-time traffic conditions.