access-limited advice advising alert appropriate-behavior appropriate-behaviour authorised-entry-only authorized-entry-only black blue boots care caution clothing concern construction-site danger dangerous directions eye-protection feet footwear helmets information informing injury limited-access peotective-equipment protect protection protective red restricted restriction restrictions risk risks risky safety sign unauthorised unauthorized visibility warning warning-sign white workers workmen announcement be-careful beware careful communicating communication crossing double-lines island lookout observant pedestrians reflective refuge road road-sign security share sharing signs small-traffic-island traffic traffic-flow traffic-island walk walkers walking watch watch-out yellow access-denied ban banned bylaws denied law legal motorbikes-prohibited no-wheels not-allowed not-permitted pedestrian-care pedestrian-safety permission-denied prohibited prohibition prohibitions rules symbol bicycles-prohibited parking rollerskates-prohibited skateboards-prohibited cycling-prohibited no-bikes no-cycling