What does "Arrival END" prioritize for setting Yard Limits in Bi Di single line RVD territory?

"Arrival END" prioritizes the Yard Limits at the point where the trains enter a yard or station area. In Bi Di single line RVD (Run Vehicle Detection) territory, the Yard Limit is established to define where the operating rules change, particularly concerning the movement of trains within and beyond the yard area.

The YLB (Yard Limit Board) sign specifically indicates the limit of yard operations and serves as a clear marker for train crews about where the regular block and movement authority cease. By prioritizing the YLB sign, it ensures that crews are aware of the transition from the main line operational rules to the yard operational protocols, helping to maintain safety and effective management of train movements.

In contrast, a Home Signal primarily indicates the status of a route ahead but may not define the operational limit as clearly as the YLB sign. Other signals like the Outer Home Signal and Departure Signal relate to the signaling of train passage rather than establishing the specific boundary for yard operations. Therefore, the YLB sign is essential for demarcating the safe operating limits in this context.