What is the primary function of railway signals?

The primary function of railway signals is to regulate train speeds and provide status updates. Railway signals are essential components of the train control system. They communicate important information to train operators regarding track conditions, whether a section of track is safe to enter, and the appropriate speed for the train to travel. This information helps prevent collisions and ensures safe and efficient movement of trains on the railway network.

Signals can indicate whether a train should stop, proceed at a restricted speed, or proceed at full speed, depending on the railway's operating protocols and the current conditions of the track. By managing these aspects, railway signals play a crucial role in maintaining safety on the railways while ensuring timely service for customers.