What should a train operator do when entering a different territory from CBTC mainline?

When a train operator enters a different territory from the CBTC (Communications-Based Train Control) mainline, acknowledging the territory and operating according to its specific rules is essential. This proper acknowledgment involves understanding the operational protocols and safety procedures that govern the new territory, which may have different signaling systems, speed limits, or operational requirements.

By operating normally for the territory being entered, the operator ensures that all safety measures are upheld, reducing the risk of accidents or incidents that could arise from unfamiliar operating procedures. It's crucial for maintaining a seamless transition into the new area's operational standards, which are designed for the safe movement of trains within that particular system.

Switching to manual controls or ignoring the territory could lead to compromising safety by either not adapting to new operational challenges or causing disruptions that could affect service reliability. Notifying passengers, while important for transparency, is secondary to the immediate responsibility of the operator to ensure safe train operation based on established guidelines for the territory.