Which brake valve position is essential for moving the train from a stopped state?

The essential brake valve position for moving a train from a stopped state is the Release position. When the brake valve is set to Release, it allows for the release of the air pressure that has been applied to the braking system. This pressure release is critical, as it disengages the brakes that are holding the train stationary.

In this position, the train’s braking mechanism is free to allow for movement, which is necessary to start the train from a complete stop. Therefore, to move the train, you must ensure that the brakes are not engaged, and the Release position accomplishes this effectively, allowing the train to begin its journey safely and smoothly.

Other brake valve positions, like Emergency or Service, are designed for different functions, such as stopping the train or controlling its speed during operations, rather than allowing for movement from a stop.