alert appropriate-behavior appropriate-behaviour area attention banned boundaries boundary cigarettes communicating communication danger direction directive distinctive entrance environment health health-risk limits location no-smoking not-allowed not-permitted penalties penalty permission-denied pollution prohibited prohibition shopping-center shopping-centre sign symbol thick thin unhealthy warning wording words advice black care circles concern dangerous denied directions disapproval disapproved inform information informing message messages pictograms prohibitions protect protection public red restricted restrictions rules safety signage signs symbols warning-sign white access-denied access-limited behave behavior behaviour communicate entry-denied entry-prohibited keep-off limited-access no-access no-entry prosecution restriction trespass trespassing unauthorised unauthorized avoid damage demolition destruction hazard hazardous keep-out requirements risk risks risky unwanted blue announcement be-careful beware caution crocodiles crocs no-swimming swimming unsafe water consumption Look looking lookout no-diving shallow undrinkable brown damaged rough scratches scrathed advising allocated allocation arrow authorised authorized automobiles emergency emergency-vehicles limited vehicles beach lettering public-beach text