Road, railway and associated viaduct, bridge and tunnel construction

This sub-class includes: - construction of motorways, streets, roads, expressways, other vehicular and/or pedestrian ways - surface work on streets, roads, expressways, bridges and/or tunnels: - asphalt paving of roads - road painting and/or other marking - installation of crash barriers, traffic signs and the like - construction of railways and/or underground railways - construction of electricity overhead lines for railways - construction of conductor rails for railways - construction of airfield runways - construction of tunnels, bridges and/or viaducts associated with road and expressway construction - construction of tunnels, bridges and/or viaducts associated with railways and/or underground railways construction