What is a visual indicator that the gangway is open to access?

A green flag or light serves as a universal visual indicator that the gangway is open for access. This color is widely recognized in maritime customs and safety protocols to signify that it is safe for personnel to board or disembark from the vessel. The use of green to indicate permission aligns with many standardized safety practices, reducing the risk of confusion and ensuring clear communication among crew members and individuals wanting to access the ship.

In maritime operations, visual signaling is crucial, and the use of a color code helps standardize procedures across different ships and ports. Green is consistently associated with "go" or "safe," reflecting an open and clear pathway for movement. This distinction is vital for maintaining safety and efficiency in busy maritime environments.