Glossary of Trucking Terms

1 ABS (Anti-lock Braking System) Computer,sensors and solenoid valves which togethermonitor wheel speed and modulate braking forceif wheel lockup is sensed during braking. Helpsthe driver retain control of the vehicle duringheavy braking on slippery Ride Suspension Suspension which supportsthe load on air-filled rubber bags rather than steelsprings. Compressed air is supplied by the sameengine-driven air compressor and reservoir tankswhich provide air to the air brake It Apply brakes for an emergency of Lading Itemized list of goods contained ina Spot Areas around a commercial vehiclethat are not visible to the driver either through thewindshield, side windows or Tractor operating without a trailer. Alsorefers to straight Combined weight of all loads,gear and supplies on a Company Company that provides local(within a town, city or municipality) pick-up and (Commercial Driver s License) Licensewhich authorizes an individual to operatecommercial motor vehicles and buses over 26,000pounds gross vehicle weight.

2 Container Standard-sizedrectangular box usedto transport freight by ship, rail and Dolly Auxiliary axle assemblyequipped with a fifth wheel (coupling device),towed by a semitrailer and supporting the frontof, and towing, another (Twins, Twin Trailers) Combination of atractor and two semitrailers connected in tandemby a converter (Electric On-Board Recorder) Cab-mounteddevice which electronically records data such astruck speed, engine rpm, idle time and otherinformation useful to Trucking Carrier Company which transportscommodities exempted from InterstateCommerce Commission economic Carrier Company in the business oftransporting freight belonging to Hazardous materials, as classified bythe Environmental Protection of hazardous materials is strictlyregulated by the Department Department ofTransportation safety regulations which governthe hours of service of commercial vehicle driversengaged in interstate Trucking Transportation The transportationmovement involving more than one mode ( ,rail/motor, motor/air, rail/water).

3 JIT (Just-In-Time) Manufacturing system whichdepends on frequent, small deliveries of parts andsupplies to keep on-site inventory to a Gear Retractable legs which support thefront of a semitrailer when its not coupled to (Long Combination Vehicle) In general,vehicles longer than a standard doubles of LCVs which are permitted in western states and eastern toll roads: Twin48-foot trailers; triple 28-foot of Trucking TermsAMERICAN TRUCKINGASSOCIATIONSA merican Trucking Associations950 N. Glebe Road | Suite 210 | Arlington, VA | | American Trucking Associations950 N. Glebe Road | Suite 210 | Arlington, VA | | Book carried by truck drivers in whichthey record their hours of service and duty statusfor each 24-hour period. Required for interstatecommercial Trucking by the Department Driver truck driver who travels a set route from city to city and typically returnshome after each shift. Also known as a regional Driver truck driver who picks up anddelivers packages along a city route.

4 Driverstypically run the same route everyday, returninghome after each shift. Also known as a city or P&D (Less-Than-Truckload) A quantity of freightless than that required for the application oftruckload (TL) rate; usually less than 10,000 Carrier Trucking company which consolidatesless-than-truckload cargo for multiple destinationson one truck driver who owns andoperates his own Driver truck driver who travelscross-country to deliver freight and usually sleepswithin a berth in the truck cab. Typically averagesover 100,000 miles per Pickup and delivery. May also be referredto as a city Weight of the cargo being Run truck route with frequent delivery Carrier Business which operates trucksprimarily for the purpose of transporting its ownproducts and raw materials. The principlebusiness activity of a private carrier is truck Driver Different categories ofdrivers include over-the-road, line-haul and Refrigerated trailer with insulate wallsand a self-powered refrigeration unit.

5 Mostcommonly used for transporting truck trailer supported at the rear byits own wheels and at the front by a fifth wheelmounted to a tractor or a Sleeping compartment mounted behinda truck cab, sometimes attached to the cab or evendesigned to be an integral part of Fifth Wheel Fifth wheel mounted to a mechanism that allows it to be moved back andforth for the purpose of adjusting the distributionof weight on the tractor s truck Vehicle which carries cargo in abody mounted to its chassis, rather than on atrailer towed by a (Truckload) The quantity of freight required tofill a trailer; usually more than 10,000 Carrier Trucking company which dedicatestrailers to a single shipper s cargo, as opposed toan LTL (Less Than Truckload) carrier whichtransports the consolidated cargo of severalshippers and makes multiple truck designed primarily to pull asemitrailer by means of a fifth wheel mountedover the rear axle. Tractor Trailer Tractor and truck , tractor or trailer with three axlesgrouped together at the Leasing Leasing a company s vehicle toanother transportation provider for a single trip.