L

LTL CARRIER, Less-Than-Truckload
For-hire carrier transporting shipments of usually less than 1000 lbs from multiple consignees to varied destinations. Consignments can vary from a box of switches to multiple pallets of machinery. LTL shipments are generally needed expeditiously, but not urgently. Typically there are three legs to a LTL shipment: P&D (pickup and delivery) drivers pick up the shipment and take it to a distribution center where it is put on a linehaul trailer to the destination distribution center. From there, another P&D driver delivers it. Thus LTL functions like the USPS or UPS, only for generally heavier shipments.

Drivers for LTL differ from TL drivers: the P&D drivers generally deliver in their home location, and get home every night; LTL linehaul drivers travel predictable routes and get home every night or every other night.

LTL carriers operate multiple terminals where loads are consolidated for delivery, and are thus unlike TL carriers.
See TL Carrier See For-hire Carrier

LOAD
The device that uses the power supplied from an electrical source. It can be a motor, lamp, horn or other device.

LUMPER
The guys that truckers love to hate. Lumpers are the people who unload trailers at the destination, and managers of such people. A trucker wants to offload as soon as possible: lumpers need to offload when they have labor available. The two objectives can be mutually exclusive, and can cause conflict, sometimes even fistfights.