Warning Signs are Generally Triangular
Distance to STOP Sign ahead
Dual Carriageway ends
Road narrows on right (on left if symbol is reversed)
Road narrows on both sides
Distance to GIVE WAY sign ahead
Crossroads
Junction on a bend ahead
T-Junction with priority over vehicles from the right
Staggered Junction
Traffic merging from left ahead
Double bend first to left (symbol may be reversed)
Bend to right (or left if symbol is reversed)
Roundabout
Uneven road
A plate seen below some other signs
Two-way traffic crosses one-way road
Two-way traffic straight ahead
Opening for a swing bridge ahead
Low flying aircraft or sudden aircraft noise
Fallen or possible falling rocks
Traffic signals not in use
Slippery road
Steep hill downwards
Steep hill upwards
Tunnel ahead
Trams crossing ahead
Level crossing without barrier or gate ahead
Level crossing without barrier
Level crossing with barrier or gate ahead
School crossing patrol ahead
Frail (or blind or disabled if shown) pedestrians likely to cross road ahead
Pedestrians in road ahead
Zebra Crossing
Overhead electric cable
Cattle
Wild animals
Wild horses or ponies
Accompanied horses or ponies
Cycle route ahead
Risk of ice
Traffic queues likely
Distance over which road humps extend
Other danger, plate indicates nature of danger
Soft verges
Side winds
Hump bridge
Worded warning sign
Quay side or riverbank
Risk of grounding
Sharp deviation of route to left (or right if chevrons reversed)
Light signals ahead at level crossing, bridge or airfield
Miniature warning lights at level crossing