advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware care careful carpark caution communicating communication concern danger dangerous directions informing Look looking lookout observant pedestrian pedestrian-speed red reflective risk risks safety shared-area sign signs slow slow-down speed traffic warning warning-sign watch watch-out white black circles denied disapproval disapproved inform information message messages not-allowed not-permitted permission-denied pictograms prohibited prohibition prohibitions protect protection public restricted restrictions rules signage symbols advising be-prepared-to-stop cars hazard limited-access motorcars no-overtaking no-passing readiness ready risky road-sign roadwork vehicles workers workmen behave behavior behaviour communicate restriction aware awareness color colored colorful colour coloured colourful considerate consideration Dirt dirty disposal dispose garbage lettering letters reduce responsible rubbish rubbish-reduction unwanted waste waste-disposal waste-reduction wording words dangers deep deep-water depth direction don’t-alight flowers foliage plants river riverside water wet area attention banned blue boundaries boundary cigarettes directive distance distinctive entrance environment health health-risk limits location no-smoking painted pollution shopping-center shopping-centre symbol unhealthy alcohol conditions consumption listen no-alcohol no-swimming Bin colors colours trams waste-bin yellow