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  1. 1 Ιουλ 2015 · The air-cargo consolidation problem under the pivot-weight scheme (ACPW) is characterized by a pivot weight and two unit costs, respectively, the under-pivot rate and the over-pivot rate. The pivot weight U j is a weight threshold of a ULD, below which the cargo is charged the under-pivot rate.

  2. 1 Ιουλ 2015 · We formulate a mixed integer program, and propose four solution methodologies for the air-cargo consolidation problem under the pivot-weight scheme (ACPW). These are exact solution approaches based on branch-and-price, a best-fit decreasing loading heuristic, and two extended local branching heuristics (a multi-local tree search and a ...

  3. Simply put, pivot weight refers to the minimum chargeable weight for a specific type of container or Unit Load Device (ULD) used in air cargo. Shipments that fall below the pivot weight for a particular ULD are charged a higher rate per kilogram, known as the under-pivot rate.

  4. The air-cargo consolidation problem with pivot weight: Models and solution methods

  5. 31 Ιουλ 2015 · This study investigates the effects of carbon emissions within the framework of air freight integrator shipment planning, with integration and consolidation.

  6. 18 Φεβ 2023 · For each container type, a minimum weight (pivot weight) is taken as a basis, which is charged regardless of the actual weight. If the actual weight is above this minimum, a surcharge per pound or kilo is levied for the difference ( over pivot weight ).

  7. A ULD is charged at an under-pivot rate if the total weight is below a threshold limit, called the pivot-weight. Additional weight is charged at the over-pivot rate. We propose a solution methodology based on Lagrangian relaxation that is capable of providing high quality solutions in reasonable computational times.

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