What is a requirement for properly lining a switch before a train moves?

Ensuring a visual confirmation is made is crucial for properly lining a switch before a train moves, as this process helps to verify that the switch is set in the correct position for the train’s intended route. Visual confirmation allows personnel to physically check that the switch points are aligned properly and securely against the rail, which is vital for safe train operations. This step mitigates the risk of accidents or derailments that can occur if a switch is inadvertently left in the wrong position.

Although checking weather conditions, waiting for a dispatcher’s signal, and conducting a thorough inspection of the entire train are important practices in railroad operations, they do not directly address the specific action required to ensure switches are lined correctly for safe train movement. Visual confirmation focuses on the immediate action necessary for switch safety, making it the most relevant requirement in this scenario.