This industry comprises establishments primarily engaged in providing services (except motor vehicle towing) to road network users. Illustrative Examples: Bridge, tunnel, and highway operations Pilot car services (i.e., wide load warning services) Driving services (e.g., automobile, truck delivery) Truck or weighing station operations Cross-References. Establishments primarily engaged in-- ? Providing automotive repair and maintenance--are classified in Industry Group 8111, Automotive Repair and Maintenance; ? Providing towing services to motor vehicles--are classified in Industry 488410, Motor Vehicle Towing; ? Providing a network for busing in combination with providing terminal services--are classified in Industry 485210, Interurban and Rural Bus Transportation; and ? Providing a network for trucking in combination with providing terminal services--are classified in Subsector 484, Truck Transportation.