access-denied access-limited advice alert appropriate-behavior appropriate-behaviour behave behavior behaviour black communicate communication denied directions entry-denied entry-prohibited keep-off limited-access no-access no-entry not-allowed not-permitted permission-denied prohibited prohibition prosecution restricted restriction restrictions safety sign trespass trespassing unauthorised unauthorized warning white blue red brown damaged rough scratches scrathed access barrier barring bollards denying denying access in the way metal metal bollards barring access no thoroughfare prevention protection reflections reflective shiny silvery access denied communicating denying entry directive forbidden informing multi-lingual not allowed not permitted permission denied protected restricted area secure security serious stop caution cautious keep-out don’t no no-pedestrians pedestrian fine fines information no-go penalty