obstacle detour road barrier fence roadworks barricade, orange red and white stop signal, mandatory keep left uk road sign

access accident attention bar barricade barrier block blocked boundary brand car caution closed closeup concept construction controlling cut cutout danger detailed detour driving equipment fence guide highway horizontal isolated keep large left luminescent mandatory marking new obstacle orange out panel pattern preventive protective pvc railing red redirect redirection reroute road roadsign roadworks safety seamless sign signage signal signs site stop street symbol temporary traffic warning white works