A rider in a bicycle diamond lane

In the United States and Canada, a diamond lane is a special lane on a street or highway that is reserved for specific types of traffic. These lanes are usually marked with white diamonds or lozenges, and hence their name. Diamond lanes are generally the right-most or left-most lane on the road. They are usually implemented to provide ways through traffic congestion, for safety reasons, and to encourage environmentally friendly transportation. A diamond lane may be intended for a specific type of traffic, or for several types. The intended use of a diamond lane is marked by traffic signs. In most areas, violating the rules of a diamond lane is punishable by a fine.

Some common examples are:

In some cases, these lanes may serve multiple functions. For example, a diamond lane may be designated for buses, bicycles, and right turns.

Standards

The Federal Highway Administration's Manual on Uniform Traffic Control Devices states that diamonds indicates a lane reserved for high-occupancy vehicles.[1]

See also

References

  1. "United States Pavement Markings".
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