Page:UKSI19810859.pdf/50

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2508
ROAD TRAFFIC

SCHEDULE 1 PART I—Warning signs (contd.

Plat for use with sign in diagram 556 near a railway level crossing or with sing in diagram 528 near a hump bridge
(see direction 12)
556.4


Slippery road
557


Low flying aircraft or sudden aircraft noise
558


Low flying aircraft or sudden aircraft noise
Permitted Variant: The Symbol may be reversed
559


Hazard marker to indicate edge of carriageway or obstruction near that edge
Permitted Variant: The portion of the sign coloured red to be coloured white or amber as prescribed
(See Direction 23)
560


Same as 560
(See Direction 23)
561