When laying up a train, how many hand brakes are required at a minimum?

The requirement for laying up a train emphasizes safety and security when the train is not in motion. The stipulation of needing a minimum of two hand brakes on each end of the train is designed to ensure that the train remains secure and is effectively immobilized. This dual requirement on both ends serves to account for various safety factors, such as preventing the train from moving due to conditions like gradients or wind, and allowing for redundancy in the braking system.

Each hand brake functions independently, providing a backup if one were to fail or become ineffective. By having two hand brakes on each end, the protocol enhances the stability of the train's position and cultivates a safer environment for personnel and equipment in the rail yard or wherever the train is stationed.

Laying up a train with fewer than the required number of hand brakes could pose significant risks, as it may not sufficiently prevent unintended movement. This understanding reinforces the importance of adhering to established protocols for securing trains properly.