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NO Sign

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Preston Bypass Entrance.jpg
A NO sign at the entrance to the Preston Bypass in 1958
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The term NO sign refers to an older style of sign used at the entrance to motorways to indicate prohibited classes of vehicles and road users. Between its introduction in 1958 as part of the Anderson report and the 1975 regulations, it appeared with four different designs. It was replaced with the so-called "chopsticks sign" on motorways by the Traffic Signs Regulations and General Directions 1975.

Very few original NO signs remain: the best collection is on the A167(M) Newcastle Central Motorway.

On non-motorway Special Roads, such as the A55 Colwyn Bay Bypass and Conwy Tunnel, a modified variant is used. Where A-roads feature some restrictions, but are not necessarily Special Roads, an edited NO sign is occasionally used. Examples can be seen on the A12 in East London and on the A20 near the Roundhill Tunnel in Kent.

There is no standard layout of a modern NO sign.

NO Sign
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Traffic Signs
TypesInformation (UK TSRGD) • (IRL TSM) • Regulatory (UK TSRGD) • (IRL TSM) • Warning (UK TSRGD) • (IRL TSM)
UKAnderson report • Worboys report • Traffic Sign Design • TSRGD and TSM (Motorway alphabet • Transport alphabet) • Guildford Rules
IrelandTraffic Signs Manual
MiscellaneousList of Street Furniture Manufacturers
Regulatory Signs
Prohibitive OrdersGive Priority • Give Way • Maximum Height • Maximum Length • Maximum Weight • Maximum Width • No Buses • No Cycling • No Entry • No Explosives • No Motor Vehicles • No Overtaking • No Towed Caravans • No Turn • No Vehicles • School Crossing • Speed Limits • Stop • Stop / Go • No Stopping (Clearway) • No Waiting • Parking Restrictions • Red Route
Positive OrdersAhead Only • Keep Left / Right • Mini Roundabout • Minimum Speed • One Way Traffic • Turn Ahead • Bus Lane signs • Cycle Lane/Path signs • Tram Signs
OtherNO sign • Flood Gates • Snow Gates

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