What does a white diamond symbol on the road indicate?

The white diamond symbol on the road specifically indicates a carpool or High-Occupancy Vehicle (HOV) lane. These lanes are designated for vehicles with multiple passengers, which helps to encourage carpooling and reduce traffic congestion. The presence of the white diamond serves as a clear visual cue to drivers that they are entering a lane with specific occupancy requirements, emphasizing the importance of sharing rides in designated areas. This helps improve traffic flow and reduce emissions by promoting the use of fewer vehicles on the road.

Understanding the meaning of road symbols like the white diamond is crucial for safe driving and compliance with traffic regulations, as well as for contributing to overall road safety and efficiency.