advice alert announcement appropriate-behavior appropriate-behaviour avoid be-careful beware black care caution communicating communication concern danger dangerous deep denied directions health information informing not-allowed not-permitted permission-denied polluted pollution prohibited prohibition protect protection red risk risks risky rules safety sign signs toxic toxicity unhealthy warning warning-sign water water-pollution water-toxicity weathered white 3-D area attention banned cigarettes direction directive distinctive environment eye-catching glassy health-risk lettering location no-smoking plastic raised semi-transparent style surface surfaced surfaces surfacing symbol tactile texture textured textures thick thin wording words access-denied background behave behavior behaviour blue communicate entry-denied entry-prohibited fencing keep-off limited-access mesh no-access no-entry no-go restricted restriction restrictions secure security signage trespass trespassing unauthorised unauthorized cars law legal no-standing no-temporary-parking parking refusal road road-safety road-side unacceptable vehicles access-limited fine fines penalty prosecution contaminated contamination advising approved authorised authorized guests insiders limited limited-parking message no-outsiders outsiders private private-property vistors ban bylaws motorbikes-prohibited no-wheels pedestrian-care pedestrian-safety prohibitions watch watch-out bicycles-prohibited