advice alert announcement appropriate-behavior appropriate-behaviour be-careful beware black care careful caution communicating communication concern danger dangerous directions informing looking lookout observant rail railway railway-station railway-tracks red risk risks safety sign signs trains warning warning-sign watch watch-out white cautious denied direction inform information message not-allowed not-permitted permission-denied please polite prohibited prohibition prohibitions protect protection rectangle rectangular rules signage text words approval approved green park permitted public-park vehicle communicate disapproval disapproved multiple-prohibitions restricted restrictions go light lights listen Look pedestrian pedestrians trams access accessibility advising availability convenience convenient disability disabled gender indication indicator informative ladies loo personal public public-convenience public-toilet rest-rooms sanitation toilet toilets wc wheelchair-access women’s-toilets beach penalties public-beach angles arrows compass cross distribution east gold golden heraldic heraldry location medieval north opinion points power south symbols this way west world wide camping fines no-camping public-areas conditions garden garden-beds keep-out planter-beds watch-your-step appropriate behavior appropriate behaviour environment health health risk no spitting not allowed not permitted permission denied pollution spit spitting unhealthy