powerful white big rig semi truck tractor with open hood standing in mechanical workshop for inspection and maintenance

semi trucks hauler big rig freight trucking transportation carries truck transport semitruck engine cargo mobile distribution parking delivering heavyduty tow traffic trailer towing help road shipping logistic shop breaking carrier service broken pick highway haul accident breakdown rigs assistant transporting inspection repair wheel diagnostic maintenance safety delivery american red loads transition trailers fleet chassis industrial travel coupling warning hood commercial driving business break technician eighteenwheeler wheels emergency protection powerful white tractor mechanical workshop technical diagnostics periodic