What is required before trains can reverse direction within interlocking limits?

Before trains can reverse direction within interlocking limits, a proper interlocking signal or the Dispatcher's permission is essential. This requirement ensures that the movement is safeguarded within the controlled area, preventing any potential conflicts with other train movements that may be occurring simultaneously.

Interlocking systems are designed to maintain safe operation by coordinating signals and tracks. By requiring a signal or permission from the Dispatcher, it verifies that the track is clear and that it is safe for the train to reverse direction. The Dispatcher plays a critical role in monitoring train movements and coordinating the safety of operations within interlocking limits, making their authorization an important aspect of safe train management.

This approach prevents accidents and increases the safety of train operations by ensuring that all necessary checks have been performed before a train changes its direction in a potentially busy or complex area.