advice alert announcement appropriate-behavior appropriate-behaviour Bin black care careful cars caution colors colours communicating communication concern considerate consideration danger dangerous directions Dirt dirty garbage informing listen lookout observant red risk risks rubbish safety sign signs trams warning warning-sign waste waste-bin waste-disposal watch-out white yellow access-denied boating boats directing direction helpful information informative not-allowed not-permitted prohibited prohibition restricted restriction restrictions risky rocks rocky shallow symbol symbols water waterside words background close-up distinctive external greenery hazard hazardous hazardous-pathway message path-warning-sign shade shadows signage sunlight tree trees trip-warning tripping-up uneven vegetation walking-hazard clean clean-up cleanliness dog doggy-do droppings excrement excreta hygiene lettering mess messy pets pickup poo prepared responsible rules sanitation text wording avoid damage demolition denied destruction keep-out no-access no-entry permission-denied requirements unwanted aware awareness be-careful beware forklift Look looking moving moving-machinery rain rain-drops watch work workplace area children observance school schools slow slow-down slower speed time times zone crocodiles crocs no-swimming protect protection swimming unsafe consumption health no-diving undrinkable unhealthy advising blue motorcars orange road-sign roadwork traffic vehicles workers workmen