advice alert appropriate-behavior appropriate-behaviour behavior behaviour black bright caution communicate communication danger dangerous local park reptiles restricted restriction restrictions safety seen sighting sightings sign snakes venomous warning yellow announcement aware awareness care careful communicating considerate consideration directions fence informing lettering letters red signs white wording words ban banned denied fishing ground ground-level no-fishing not-allowed not-permitted permission-denied pier prohibited prohibition symbols water waterside be-careful beware car cars drivers lookout observant observe pedestrians security vehicles watch watch out angel of death Cg artwork death fictional character fire flame frightening graphic design graphics health warning heat horror illustration night smoke smoking smoking causes cancer smoking destroys health smoking kills auto coal crisis data fuel funny gas gas crisis gas price high illegal info information liquid oil prices petrol petroleum price station street suicide tank transportation vehicle black and white denial dog dogs-prohibited pets rules directing direction directional directive not allowed parking permission denied purple road-sign stop street-sign traffic traffic-flow verge asbestos attention building yard construction area do not enter finger gesture glove hand icon industrial logo pictogram stay away stay out thumb not permitted reflective road sign street sign traffic flow