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Warning Traffic Signs

This section includes signs that warn road users of a hazard ahead. They are diamond or rectangular in shape and have a black border and black symbols or letters on a yellow background.

Sign showing dangerous corner aheadDangerous corner ahead
Sign showing roundabout aheadRoundabout ahead
Sign showing mini-roundabout aheadMini-Roundabout ahead
Sign showing merging trafficMerging traffic
Sign showing two-way trafficTwo-way traffic
Sign showing dangerous bend aheadDangerous bend ahead
Sign showing series of dangerous bends aheadSeries of dangerous bends ahead
Sign showing series of dangerous corners aheadSeries of dangerous corners ahead
Sign showing restricted headroomRestricted headroom


Junction ahead with roads of less importance (the latter being indicated by arms of lesser width)

Sign showing T-junctionT-junction
Sign showing Y-junctionY-junction
Sign showing side roadSide road
Sign showing T-junctionT-junction
Sign showing crossroadsCrossroads

Junction ahead with a road or roads of equal importance

Sign showing crossroadsCrossroads
Sign showing side roadSide road
Sign showing T-junctionT-junction
Sign showing Y-junctionY-junction
Sign showing staggered crossroadsStaggered crossroads

Advance warning of a major road (or dual carriageway ahead)

Sign showing T-junction with dual carriagewayT-junction with dual carriageway
Sign showing Crossroads with dual carriagewayCrossroads with dual carriageway
Sign showing CrossroadsCrossroads

General purpose warning signs

Sign showing Drive on leftDrive on left
Sign showing Traffic cross-over aheadTraffic cross-over ahead
Sign showing Low flying aircraftLow flying aircraft
Sign showing Road dividesRoad divides
Sign showing Merging/diverging trafficMerging/diverging traffic
Sign showing Dual carriageway endsDual carriageway ends
Sign, Safe height plateSafe height plate
Sign showing Overhead electric cablesOverhead electric cables
Sign showing Traffic signals aheadTraffic signals ahead
Sign showing Pedestrian crossing aheadPedestrian crossing ahead
Sign showing Slippery road aheadSlippery road ahead
Sign showing Road narrows on both sidesRoad narrows on both sides
Sign showing Road narrows from leftRoad narrows from left
Sign showing Road narrows from rightRoad narrows from right
Sign showing Tunnel aheadTunnel ahead
Sign showing Sharp dip aheadSharp dip ahead
Sign showing Series of bumps or hollows aheadSeries of bumps or hollows ahead
Sign showing Sharp rise ahead (hump-back bridge)Sharp rise ahead e.g. hump-back bridge
Sign showing Deer or wild animalsDeer or wild animals
Sign showing sheepSheep
Sign showing cattle and farm animalsCattle and farm animals
Sign showing Accompanied horses and poniesAccompanied horses and ponies
Sign showing crosswinds Crosswinds
Sign showing Steep descent aheadSteep descent ahead
Sign showing Steep ascent aheadSteep ascent ahead
Sign showing Danger of falling rocksDanger of falling rocks
Sign showing Unprotected quay, canal or river aheadUnprotected quay, canal or river ahead
Sign showing Low bridge ahead (height restriction show)Low bridge ahead (height restriction show)
Sign showing Level crossing ahead, guarded by gates or lifting barrierLevel crossing ahead, guarded by gates or lifting barrier
Sign showing Level crossing ahead, unguarded by gates or lifting barrierLevel crossing ahead, unguarded by gates or lifting barrier
Sign showing Level crossing ahead with lights and barriersLevel crossing ahead with lights and barriers
Sign showing Stop when lights are redStop when lights are red
Sign showing Automatic level crossing aheadAutomatic level crossing ahead
Sign showing Chevron board (a sharp change of direction to the left)Chevron board (a sharp change of direction to the left)
Sign showing Chevron board (a sharp change of direction to the right)Chevron board (a sharp change of direction to the right)

Warning signs for schools and children

Sign showing School aheadSchool ahead
Sign showing School children crossing aheadSchool children crossing ahead
Sign showing Children crossing (in residential area)Children crossing (in residential area)

Tram Signs

Sign showing Tram lane crossing aheadTram lane crossing ahead
Tram lane warning sign look both waysTram lane warning sign look rightTram lane warning sign look left
Tram lane warning signs for pedestrians
Sign showing tram track slippery for cyclistsSlippery for cyclists