What should a train operator do when observing a red lantern on the rear of a car at the bumper?

When a train operator observes a red lantern on the rear of a car at the bumper, it is a signal indicating a potential danger or the need for caution. The red lantern serves as a warning that there may be workers or equipment nearby, and it alerts the train operator to the possibility of a situation that could require immediate attention.

Stopping a car length away allows the operator to assess the situation carefully while ensuring the safety of any workers that may be present. By checking with the workers, the operator can gather information about any activities or hazards that may not be immediately visible. This proactive approach prioritizes safety and communication, ensuring that the train operator is making informed decisions in a potentially hazardous environment.

Proceeding with caution without stopping might lead to dangerous situations if there are workers or obstructions that are not apparent from the distance. Ignoring the signal could endanger personnel on or near the tracks, and sounding the horn without stopping does not provide the necessary opportunity to evaluate the safety conditions. Therefore, the correct response to the presence of a red lantern is to stop and check with the workers, ensuring a safe operational protocol.