big rig semi trucks convoy with semi trailers going on straight

american big cargo carrier class commercial convoy dangerous delivering delivery directions distances divided drive driving duty eighteen fleet freight going haul haulage heavy highway interstate land line loaded loads logistic logistics long lorry move movement moves moving outdoors protected refrigerator reposition rig rigs road roadside roadway run running safety semi shipping sunshine team together towards tractor traffic trailer trailers transit transport transportation transporter transporting travel truck trucking trucks trunk utah vehicle visibility wheeler