advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful cars caution communicating communication concern crossing danger dangerous directions informing listen Look looking lookout observant rails railway railway-crossing red risk risks road safety sign signs trains warning warning-sign watch watch-out white access accessibility allocated allocation approved arrow blue conditional conditions directing direction directional disability disabled fee-free free handicapped indication indicator no-fee parking symbol symbols wheelchair word beach beach-side bitumen coast costal cycling cyclists families movement moving path pathway pedestrians people protective sand sandy sealed share sharing surface surfaces surfacing texture textured textures track travel traveling travelling walk walkers walking lanes left lefthand-lane message road-rules traffic traffic-flow vehicles behave behavior behaviour communicate information large-vehicles limitations limited restricted restriction restrictions reversal reversing risky trucks avoid below-ground digging digging-dangers flammable gas gaseous natural-gas no-ignition pipeline pipes potential stay-clear vapour vapours warned carpark pedestrian pedestrian-speed reflective shared-area slow slow-down speed african animal animals be careful dog mammal observe painted dog watch out wild wild dog wildlife zoo