What governs movement within the interlocking or CP signals in CSS territory?

Movement within the interlocking or Control Point (CP) signals in Centralized Traffic Control (CSS) territory is governed by interlocking and CP signals. These signals are part of the overall system designed to ensure safe and efficient train movements through complex track arrangements and junctions.

Interlocking signals manage the flow of rail traffic by communicating to train operators when they may proceed, stop, or prepare to stop based on the positioning of switches and the status of the track ahead. CP signals serve a similar purpose but are specifically focused on controlling movements at designated control points, which are critical junctions along the route.

While fixed signal indications, cab signals, and distant signals play important roles in overall train operation and safety, they do not encompass the comprehensive control specific to interlocking and CP signal systems. Their effectiveness relies on the proper functioning of the interlocking and CP signals, which ultimately govern the operational rules and ensure safe train movements in the territory. This makes the selection of interlocking and CP signals the most accurate answer in this context.