black closed closed road sign detour direction message obstacles redirection road sign sign warning yellow blue isolated red road roadsign street barrier control traffic back car drive end enter not roadsigns signs stand stop stopped transport wait white asphalt barricade benchmark border caution closing off color cone cones course demarcation freeway guard light line mark marker marking move object orange race race track road racetrack reminder roadpylons safety signal speed stripe symbol utility City Life City Street close-up crossing England instructions London patience pedestrian Pedestrian Crossing Sign pedestrians Push Button Red Light stoplight street sign transportation Urban Road urban scene waiting advice advising alert automobiles cars communicate communication dead-end information informing lettering letters limited limited-access motor-vehicles no-thoroughfare no-through-road restricted restriction restrictions roadway vehicles wording words focus guide-post Lübecker Hütchen pitbox lane post pylons racecourse roadworks