advice alert announcement appropriate-behavior appropriate-behaviour black clean clean-up cleanliness communicating communication concern dog doggy-do droppings excrement excreta hygiene informing lettering mess message messy not-allowed not-permitted pets pickup poo prepared prohibited prohibition red responsible rules sanitation sign signage symbols text warning waste white wording words aware awareness be-careful beware care careful caution danger dangerous directions forklift listen Look looking lookout moving moving-machinery observant rain rain-drops risk risks safety signs trams warning-sign watch watch-out work workplace yellow area children observance school schools slow slow-down slower speed time times zone avoid crocodiles crocs information no-swimming permission-denied protect protection risky swimming unsafe water consumption denied health no-diving shallow undrinkable unhealthy advising blue cars hazard hazardous motorcars orange road-sign roadwork symbol traffic vehicles workers workmen crossing pedestrians road speed-reduction stop street-sign traffic-flow walk walkers walking colors colours considerate consideration Dirt dirty garbage green limitations limited rubbish unwanted waste-disposal cautious conditions gravel road-conditions slippage communicate dangers drowning-danger restricted restriction restrictions river riverside wet