A traffic signal that is preset to cycle through the time sequences for the onset of the green-yellow-red light sequence is a mechanical example of an open-loop control system.

Question

Quizplus · Accepted Answer

An open-loop control system operates without any feedback or correction mechanism. In this case, the traffic signal is preset to follow a specific time sequence for the green, yellow, and red lights, regardless of actual traffic conditions. There is no feedback mechanism to adjust the signal timing based on the volume of traffic, so it is an example of an open-loop system.

A Traffic Signal That Is Preset to Cycle Through the Time