Prohibitory Signs: The Complete Official List

Prohibitory signs are the "must not" half of the regulatory family: circular, with a red border or a red circle, usually with a red diagonal bar through the symbol. Here is the complete official set, grouped so it is learnable rather than a flat list of twenty.

Movement prohibitions — a manoeuvre is forbidden here: No Overtaking · No U-turn · No Left Turn Ahead · Goods Vehicles Not Allowed to Overtake

Stopping and parking prohibitions — remaining is forbidden: No Parking · No Stopping

Road-user-type prohibitions — a class of user may not use this road at all: No Pedestrians · No Cyclists · No Cyclists and Pedestrians · No Motorcycles · No Motor Vehicles · No Motor Cars · No Taxis · No Minibuses · No Buses · No Goods Vehicles

Dimension and weight limits — restriction by specification rather than type: Width Limit · Height Limit · Length Limit · Bogie Weight Limit · No Excessive Noise

And one that is none of the above: End of Restriction. It marks the point where a preceding prohibition stops applying. Worth learning specifically, because forgetting that a restriction has ended is a different mistake from missing that it began — one leaves you driving under a rule that no longer exists, which is its own small hazard when the traffic around you knows better.

Why the road-user-type family matters more here than the count suggests. That group of ten is the mechanism by which access restrictions are actually communicated and enforced on the ground. When a controlled-access road excludes motorcycles, tuk-tuks and pedestrians, this is how you find out — not from a gazette notice, but from a red circle at the entry point. Recognising these quickly is the difference between reading a restriction and discovering it through enforcement.