Civil Engineering Project From Digital Repository at the University of Maryland

Civil Engineering Theses - Analysis of Routing Strategies in Air Transportation Networks for Express Package Delivery Services.

Abstract: The package delivery industry plays a dominant role in our economy by providing consistent and reliable delivery of a wide range of goods. Shipment Service Providers (SSP) offer a wide range of service levels characterized by varying time windows and modes of operation and follow different network configurations and strategies for their operations. SSP operate vast systems of aircraft, trucks, sorting facilities, equipment and personnel to move packages between customer locations. Due to the high values of the assets involved in terms of aircraft and huge operational cost implications, any small percentage savings could result in the order of savings of millions of dollars for the company.

The current research focuses on the Express Package Delivery Problem and the optimization of the air transportation network. SSP must determine which routes to fly, which fleets to assign to those routes and how to assign packages to those aircraft, all in response to demand projections and operational restrictions. The objective is to find the cost minimizing movement of packages from their origins to their destinations given the very tight service windows, and limited aircraft capacity. In the current research, we formulate the air transportation network as a mixed integer program which minimizes the total operating costs subject to the demand, capacity, time, aircraft and airport constraints.

Keywords: Engineering, Civil, Transportation, Operations Research, Air Transportation Networks, Routing Strategies, Express Package Delivery Services, MIP Formulation, Sensitivity Analysis

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