What does the handbrake indicator light signify on the auxiliary control panel?

The handbrake indicator light on the auxiliary control panel signifies when any handbrake on the train is applied. This indicator serves a critical safety function by alerting the train operator to the status of the handbrakes, which are essential for securing the train, especially when it is stationary or parked. When the handbrake is engaged, it is important for the operator to be aware of this condition to prevent any accidental movement of the train, which could lead to hazardous situations.

The presence of the handbrake indicator provides a visual confirmation of the handbrake's application, reinforcing proper safety protocols in train operations. By clearly indicating that a handbrake is in use, it allows the operator to ensure that all necessary precautions are taken before the train resumes movement or undergoes other operational procedures. Understanding the status of the handbrakes is vital for maintaining the safety and control of the train during various operational phases.