What is the role of the ATC in relation to speed limits?

The role of the Automatic Train Control (ATC) system in relation to speed limits is primarily focused on speed enforcement. The ATC system is designed to monitor the speed of trains and ensure that they do not exceed designated speed limits set for various sections of the track. This safety mechanism helps maintain safe operating conditions and prevent accidents that could result from trains traveling too quickly, particularly in areas with potential hazards, such as curves, stations, or crossings.

While other functions of ATC may involve communication and certain safety alerts, its core purpose in the context of speed limits is to enforce compliance. This involves automatically controlling the speed of the train and applying braking if the train exceeds specific speed thresholds. Thus, the role of ATC is critical in ensuring that trains operate within safe and regulated speeds, enhancing overall safety on railways.