acceptable advice advising allocated allocation appropriate-behavior appropriate-behaviour approved black blue carpark communicating communication directing directive indication indicator information informing limited limited-parking parking restricted restrictions sign signs special-parking staff staff-only staff-parking white word access-denied alert authorised-approval authorized-approval behave behavior behaviour communicate denied direction entry-denied entry-prohibited exception keep-out limitations no-access no-entry not-allowed not-permitted permission-denied prohibited prohibition restriction staff-approval staff-approved unauthorised unauthorized warning