This chapter reviews Operations Research models for strategic design of motor carrier networks, including network configuration and terminal location. This includes networks for less-than-truckload (LTL), truckload (TL), and postal motor carriers that serve many origins and destinations in large geographic regions. LTL carriers, as well as postal carriers, use networks with consolidation and br...

Less-than-truckload industry has a valuable potential for applications of operations research in two areas, network design and efficiency improvement within existing networks. This thesis focuses on the latter, specifically the less-than-truckload terminals where cross docking operations occur. The assignment of incoming trailers to inbound docks is one of the critical decisions that affect the...

International Financial Crisis has made the less-than-truckload (LTL) industry face with severe challenges of survival and development. More and more small and medium-sized LTL carriers choose to collaborate as the potential savings are large, often in the range 5–15%. A key question is how to distribute profits/savings among the participants. Since every LTL carriers are guided by their own se...

In brief Calculating carbon emissions for less than truckload (LTL) is more challenging than for other modes of transportation. Each LTL truck combines a wide mix of freight from many shippers, with varying origin-destination pairs. Without visibility to the details about individual shipments on that truck, accurate carbon emission estimates at the shipment level can be difficult to obtain. Gra...

This paper describes a scheme for the dynamic management of linehaul drivers developed for a large U.S. LTL carrier. Virtually all scheduling problems faced by transportation service providers are complicated by time-constrained vehicle operators that can be renewed only after resting. LTL driver scheduling is further complicated by the fact that trucking moves, unlike passenger airline flights...

We present advances both in modeling and algorithm design for a service network design problem faced by less-than-truckload (LTL) freight transportation carriers. The developed models more accurately capture key operations of today’s carriers: decisions for loaded and empty trailer movements are considered simultaneously, and a time discretization is used that can appropriately model the timing...

This thesis presents a body of initial work on a class of routing problems that resemble classical vehicle routing problems (VRP's), but differ in a few key aspects. A particular subset of this class arises in the regional-level operation of an LTL (Less than TruckLoad) truck line using twin-trailer combinations. Other problems in the class, covered in much less detail, may be useful in plannin...

background: traffic noise is one of the major sources of environmental pollution that can cause permanent or temporary loss of hearing in drivers. the purpose of this study was to estimate the prevalence of hearing loss among professional long-distance drivers in bandar abbas freight terminal. methods: one thousand long distance occupational drivers in bandar abbas freight terminal not certifie...