allowed time arrival blue elapsed time european standard five minutes to twelve font little time number parking parking lot parking time period of time time timing too late alcohol alert appropriate behavior appropriate behaviour ban banned black care concern denied directions law legalities not allowed not permitted permission denied prohibited prohibition protect protection red restricted restriction rules safety sign signs warning warning sign white access-denied advice advising arrows communicate communicating communication denial directive information informing keep-out message no-parking no-vehicles not-allowed not-permitted parking-prohibited permission-denied private private-property restrictions signage text unacceptable wording words appropriate-behavior appropriate-behaviour cars clearway danger dangerous keep-clear legal no-standing no-temporary-parking refusal risk risks risky road road-safety road-side vehicles warning-sign beauty bird lake reflection relaxed river swan white swan agressive attack drinking