What does a red arrow signal mean?

A red arrow signal specifically indicates that drivers must stop and are prohibited from proceeding in the direction that the arrow points. This signal is designed to control the flow of traffic at intersections and enhance safety by preventing vehicles from entering a lane where they may confront oncoming traffic or pedestrians. Understanding this is key to maintaining safe driving practices, as it ensures that drivers yield the right of way when necessary, thereby reducing the risk of accidents. The red arrow serves as a clear warning that proceeding is not allowed, emphasizing the importance of following traffic signals for the safety of all road users.