asphalt barricade barrier caution closed closing off color cone cones direction focus freeway guard guide-post light line Lübecker Hütchen mark marker marking move object orange pitbox lane post pylons racecourse road roadpylons roadsign roadworks safety sign signal speed street stripe symbol traffic utility warning area away background beware black blue breaking building car city construction drive fire icon illegal information isolated lane law message metal no not park parking pictogram prohibited prohibition ticket tow tow-away transport transportation trees truck urban violation wall white work zone