Popular Trucking Terms series - L
Hey Dispatch University Dispatchers, Possibly, the most common thing I've been told by new dispatchers is that they don't have any experience. And, that they really want this. Our course covers everything we need to know to get started, up and running in a very short time. It is not uncommon to be making money in a matter of weeks. I want to do my part too. So, I thought of these terms that may help us all get more familiar with the dispatching and trucker lingo. Let me know if you like it. We're going to do it one alphabet at a time. This is the next one. The L's. I ask that you add any others that begin with L that you think are missing. L 1. Labels – For hazard class; look like small placards, placed near the proper shipping name and identification number. 2. Laboratory – Any U.S. lab certified by HHS for federal workplace drug testing; or approved foreign labs under DOT. 3. Laden Weight – Weight of vehicle and its load. 4. Lading – The freight in a vehicle. 5. Lamp – A device used to produce artificial light. 6. Landing Gear – Retractable leg supports to hold up trailer front when detached from tractor. 7. Lane – Specific routes trucks are dispatched. 8. Large Truck – Truck over 10,000 pounds GVWR including single units and truck tractors. 9. Layover Time – Non-working time a driver spends away from home terminal before next dispatch. 10. Layover – Waiting more than a day to load/unload; flat-rate charge when delays occur. 11. LCV – Long Combination Vehicle; longer than double trailers (e.g., triples, twin 48s). 12. Leaf Spring – Suspension using stacked narrow steel plates. 13. Leaf Spring Suspension – Narrow metal strips bolted together and attached to frame hangers. 14. Lease Agreement – A legally binding contract where one party (the lessor) grants another party (the lessee) the right to use property, such as a truck or trailer, for a specified period in exchange for payment. 15. Lease-On to a Carrier – An arrangement in which an independent owner-operator or trucking company contracts their truck(s) and services to a larger carrier, allowing the carrier to assume responsibility for dispatching, contracts, and often insurance, while the owner-operator earns a percentage of the revenue. 16. Lessee – 1) One who pays to use another’s property. 2) The owner - operator using another carrier's authority. 17. Lessor – 1) A company or person who owns property being rented. 2) The carrier allowing the owner-operator to use their authority. 18. Less-Than-Truckload (LTL) – Small shipment, usually under 10,000 lbs, charged differently than full truckload. 19. License Plate Lamp – Lamp to illuminate rear license plate. 20. Licensing Entity – State agency authorized to issue drivers’ licenses. 21. Lift Axle – 1) Extra axle lowered for heavy loads to meet weight standards. 2) Unpowered axle, raised when empty; uses air spring suspension. 3) Raised off pavement when loaded to reduce wear; usually kept raised. 22. Limit of Detection (LOD) – Lowest concentration at which analyte is reliably present. 23. Line Haul – Freight movement between cities/terminals; excludes pickups/deliveries. 24. Line-haul Driver – Travels set city-to-city route; usually returns home each shift. 25. Line Sheet – List of all components in manufacturing a truck/tractor/trailer. 26. Liquid Cargo Tankers – For liquids like gasoline or milk; smooth interiors make driving challenging. 27. Liquid Surge – Wave action of liquid cargo in tanker. 28. Live Axle – Supports vehicle weight, sends power to wheels, hollow inside. 29. Livestock Body – Truck/trailer for transporting farm animals. 30. Livestock Trailer – Trailer for livestock transport. 31. Livestock Transport Trailer – Designed for live animals; movement affects stability and braking. 32. Load Board – List of active working loads or online freight marketplaces. 33. Load Lock – Bar device to secure cargo in trailer. 34. Load Number – Unique numeric ID for loads, also used as invoice number. 35. Load Posting – Module posting available loads to Internet load boards. 36. Local Driver – Picks up/delivers packages within a city route; home daily. 37. Local Pickup and Delivery – Operates in cities; delivers freight to final destination. 38. Local Truck Routes – Designated truck routes within cities/towns. 39. Lock Ring – Holds side ring firmly on rim base in two-piece wheel rims. 40. Locking Main Differential – Locks both shafts for equal torque to wheels. 41. Log Body – Truck/trailer for transporting long items. 42. Logbook – Record of driving hours, mileage, rest time (paper or electronic). 43. Logistics – Planning movement of people/materials to the right place/time. 44. Long-Haul – Long-distance drive, usually hundreds of miles; also called OTR. 45. Lowboy – Flatbed trailer with low deck for tall loads. 46. LTL (Less-Than-Truckload) – Freight quantity less than a truckload rate, usually under 10,000 lbs. 47. LTL Carrier – Company combining small shipments from multiple customers. 48. Lumper – Person hired to unload trailer freight; cost may be part of rate breakdown.