part of big rig semi truck with audio horns on the roof

american area attention audio automobile big cargo carriage carrier carrying cautionary chrome commercial conveyance delivering delivery details direction distances drive duty eighteen fleet freight haul heavy horn industrial industry information lights loads logistic logistics long lorry maneuvers marker orange outdoors parking parts powerful protection reflection rest rig rigs row safety schedule semi shipping signal stand standing stop tractor traffic trailer trailers transport transportation transporter transporting travel truck trucking trucks wheeler