Class 3 invalid carriage - Powered wheelchairs and other outdoor powered vehicles, including scooters
Means a mechanically propelled invalid carriage which is so constructed or adapted as to be capable of exceeding a speed of 4 mph (6 km/h) but incapable of exceeding a speed of 8 mph on the level under its own power.
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If you are riding a Class 3 vehicle, you must ensure that you switch to the 4mph (6 km/h) on pavements or in pedestrian areas.
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Another scenario on a junction I use regularly
traffic light T junctions, 2 way, with pelican crossing immediately turning off main road, that is optionally also part of light sequence - ignoring common sense,
can pedestrians ignore the red man, and cross in front of cars turning off main road.
didn't have plates so it couldn't of been that quick so just in the moment i guess.
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