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Prohibitory signs

Prohibition sign - a sign prohibiting behaviour likely to increase or cause danger (eg no smoking)

Intrinsic features:

round shape
black pictogram on white background, red edging and diagonal red line (the red part to take up at least 35% of the area of the sign)

Smoking cigarette with line through — No smoking

Lit match with line through — Naked flames forbidden

Person walking with line through — No access for pedestrians

Flame with water being thrown from a bucket with line through — Do not extinguish with water

Person shouting and holding their hand up with line through — No access for unauthorised persons

Forklift truck with line through — No access for industrial vehicles

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Updated 2021-11-18