Which procedure must be followed if the remote control locomotive will be unattended for longer than 90 minutes?

If a remote control locomotive is going to be unattended for more than 90 minutes, it is essential to follow the long-term securement procedure. This procedure is designed to ensure that the locomotive is safely secured to prevent any accidental movement or incidents that could cause danger or disruptions. Proper securement involves adhering to specific protocols that not only protect the equipment but also ensure the safety of personnel and other operations in the vicinity.

Effective long-term securement minimizes the risk of the locomotive rolling away or being tampered with while unattended. This is a critical aspect of safety management in rail operations, particularly when dealing with heavy machinery like locomotives. Following the long-term securement procedure demonstrates compliance with established safety guidelines and enhances operational integrity.

In contrast, other practices such as leaving the locomotive running or simply covering it with a tarp do not provide adequate safety measures during prolonged periods of unattended operation. Additionally, while notifying a supervisor is important for communication purposes, it does not replace the need for securement as a primary safety measure in this scenario.