protection of paved roads or sidewalks from damage by working machines or heavy construction, which this corridor must temporarily

anti antislip asphalt bridge car city cobbled construction corridor covering damage driven excavation excavator gravel gray heavy highway lane layer machinery machines mat mattress metal must panel panels path paved pavement plastic plate protection repairing road roads rubber security shield sidewalks site slip spread spreads steel street summer surface temporarily this transport transportation truck trucks use way which white working