What is a daily test function of the ATC car-borne equipment designed to trigger?

The daily test function of the ATC (Automatic Train Control) car-borne equipment is designed to trigger an emergency brake application. This function serves a critical safety purpose, ensuring that the braking system can engage immediately in the event of an emergency. The ATC system continuously monitors the train's operational parameters, and during the daily tests, it verifies that the emergency braking capability is functioning as intended.

By triggering the emergency brake application during these tests, it ensures that any faults or failures in the braking system can be detected and addressed promptly. This enhances the overall safety of train operations, as reliable emergency braking is essential for preventing accidents and ensuring the safety of both the train crew and passengers.