appropriate behavior appropriate behaviour black care communication danger dangers denied not allowed not permitted permission denied prohibited prohibition red risk risks sign signs swimmers swimming warning water white alert appropriate-behavior appropriate-behaviour arrow blue communicating concern dangerous directions disapproval disapproved information informing no-standing not-allowed not-permitted permission-denied prohibitions protect protection restricted restrictions risky roadside rules safety sun-rays sunlight sunlit symbols warning-sign area cigarettes direction environment health health-risk no-smoking pollution unhealthy ban banned birds catch chase deer do not hunt hunt hunter hunting illegal man no hunting roadsign roadsigns roe scare scare away scaring spooky access-limited advice advising allocated allocation approved authorised authorized automobiles behave boom-gate communicate directive emergency emergency-vehicles entry-denied entry-prohibited limited limited-access no-access no-entry restriction unauthorised unauthorized vehicles behavior behaviour keep-off members membership prosecution trespassing fishing ground ground-level no-fishing pier waterside directing directional parking purple road-sign stop street-sign traffic traffic-flow verge reflective road sign street sign traffic flow