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BDifficulty 2/5

Which vehicles are addressed by signals with illuminated white bars on a circular black background?

Correct answer

Trams and regular-service buses; where the specified reserved lane exists, only vehicles travelling in it.

Exclusively trams and regular-service buses, unless there is a lane reserved for buses or buses, taxis and other vehicles: then they address only vehicles travelling in that lane. A steady horizontal bar means red; a steady vertical bar permits straight-ahead movement and a steady slanted bar permits movement in its direction. A flashing vertical or slanted bar means steady amber: stop unless, when it appears, you are too close to stop safely. It does not authorise every vehicle on the road to proceed.

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  • Never any vehicle travelling in a reserved lane.

  • Trams and regular-service buses; where the specified reserved lane exists, only vehicles travelling in it.

  • Always every vehicle in every lane of the road.

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