alert appropriate-behavior appropriate-behaviour approval approved bush-reserve care communication concern conservation conserve denied directions green inform information informing natural nature not-allowed not-permitted observation observe park permission-denied permitted prohibited prohibition prohibitions protect protection public-park rules sign signs warning warning-sign white black communicating directive discrimination exception exceptional exceptions limited limited-parking no-parking parking red restricted restrictions road-sign roadside special-parking street-sign traffic traffic-flow beach danger dangerous disapproval disapproved fines penalties public-beach safety blue risks risky symbols words advice awareness birds please polite protecting water-birds water-fowl weathered weathering wildlife appropriate behavior appropriate behaviour cigarettes direction environment health health risk no smoking no smoking sign not allowed not permitted permission denied pollution unhealthy access-denied advising apology avoid behavior behaviour beware caution communicate construction construction-site entry-denied entry-prohibited inconvenience inconvenient no-access no-entry restriction risk yellow asbestos damage demolition destruction fence fencing hazard hazardous health-risks keep-out mesh message requirements unwanted cars law legal no-standing no-temporary-parking refusal road road-safety road-side unacceptable vehicles