What do cab signals govern in CSS territory?

Cab signals in CSS (Centralized Traffic Control) territory primarily govern movement between fixed signals. This means that cab signals provide ongoing information about allowable speeds and the status of the route ahead, influencing how a train moves between signals rather than simply indicating the status of a single fixed signal.

The function of cab signals is essential in ensuring that train crews can respond to changing conditions immediately without relying solely on visual fixed signals. This is particularly critical in areas of high traffic or complex track configurations, where conditions can change rapidly.

Understanding the purpose of cab signals highlights their role in enhancing safety and efficiency in train operations. By continuously communicating the necessary information for the train to regulate its speed and movement proactively, cab signals help prevent collisions and ensure adherence to safety standards in active rail operations.