white big rig day cab semi truck with spoilers run on wide inter

aerodynamic air american automobile big bonnet cab car cargo carrier carrying day delivering delivery distances drive driving duty eighteen freeway freight haul haulage hauler heavy highway journey land loads logistic logistics long lorry move movement moving outdoors peterbilt reduce reposition resistance rig rigs road roadside roadway run running safety semi shipping spacious speed spoilers standard streamlined tractor traffic trailer trailers transport transportation transporter transporting travel truck trucking trucks vehicle wheeler white working