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A white diamond outline painted in a traffic lane.
Also known as: HOV lane marking, Carpool lane diamond, Restricted lane diamond, White diamond in a lane
A painted diamond marks a lane reserved for particular vehicles — high-occupancy, buses, taxis — and the diamond alone does not say which: an accompanying sign states the restriction and the hours. The symbol reserves; the sign specifies.
Marks a traffic lane subject to a use restriction, most commonly high-occupancy vehicles, buses or taxis.
Contexts: Public information
Does not itself state which vehicles or which hours; an accompanying sign carries the restriction, and the diamond only indicates that one applies.
Contexts: Public information
Is used in North America, parts of Europe, Australia and elsewhere with different occupancy thresholds, so the same marking means different minimum passenger counts in different places.
Contexts: Public information
A tall white diamond outline painted along the centre of a traffic lane, its long axis in the direction of travel.