What should be done when a blue flag is present?

When a blue flag is present, it indicates that there are workers or maintenance personnel on or near the tracks, and that the area is designated as a work zone requiring caution. The primary responsibility of a train engineer upon seeing a blue flag is to ensure the safety of those workers. By notifying the Yard Supervisor and Train Dispatcher, you are taking the appropriate steps to manage the situation effectively. This allows for proper communication and ensures that the train movements are coordinated to prevent any accidents or interference with ongoing work.

The presence of a blue flag mandates that the area be treated with the utmost caution, meaning that operational changes must occur rather than continuing as usual. Ensuring that communication is established with supervisory personnel is key to maintaining safety protocols within the railway environment. This aligns with the safety regulations that govern train operations around maintenance crews.