Who is responsible for ensuring that proper markers are displayed?

The responsibility of ensuring that proper markers are displayed falls on the conductor. This is because the conductor is in charge of the train's operation and safety, which includes verifying that all necessary safety signals, markers, and indications are correctly set and maintained throughout the train's journey. The conductor plays a key role in communication with the crew and ensuring compliance with operating rules, thereby ensuring the train operates smoothly and safely. Proper markers are crucial for providing visual signals that indicate safety status and operational instructions, which align with the conductor's duties.

While the other roles, like the train engineer, station manager, and block operator, have their own important responsibilities, they do not carry the direct obligation to oversee marker display as part of their primary functions. The conductor's focus on train operation and crew coordination uniquely positions them to ensure that all relevant markers are appropriately displayed for the safety of both the passengers and the train itself.