Where is the current operating mode displayed in the train system?

The current operating mode of the train system is displayed in the upper-left corner of the CBTC-TOD (Communications-Based Train Control - Train Operator Display). This location is specifically designed for easy visibility and quick reference, allowing the engineer to monitor the train’s operational status efficiently while driving.

The CBTC-TOD is crucial for the train operator as it provides vital information, including speed, authority, and the operating mode, thus enabling safe and effective decision-making. The upper-left corner is logically chosen because it is one of the first things an engineer would glance at when driving, ensuring that they are continuously aware of how the system is operating.

In contrast, the main console, the digital screen above the doors, and the control panel next to the engineer may provide various other functions and information but are not the designated areas for displaying the current operating mode in this system. This ensures that specific details about the train's operational capabilities are always readily accessible to enhance safety and operational control.