Upon seeing a white light moved rapidly up and down alongside a STOP signal, what should the train operator do?

The appropriate action upon seeing a white light moving rapidly up and down alongside a STOP signal is to stop at the signal and check the situation. This situation typically indicates that there may be a condition that the train operator needs to investigate further before proceeding.

Stopping at the signal allows the operator to assess the situation safely and determine if there are additional instructions or potential hazards ahead. It is essential to prioritize safety and ensure that no unforeseen circumstances are present that could affect the operation of the train.

Moving cautiously through the signal, ignoring the light, or sounding the horn could all lead to unsafe situations or potential accidents, making it critical for the operator to take the time to analyze the scenario appropriately. Stopping and checking provides a chance to clarify the meaning of the signal and ensure compliance with operational protocols, maintaining the safety of the train and its passengers.