دانلود رایگان مقاله لاتین شبکه اکسپرس هوایی از سایت الزویر
عنوان فارسی مقاله:
طراحی شبکه اکسپرس هوایی بر اساس انتخاب مسیر اکسپرس - مطالعه موردی چینی
عنوان انگلیسی مقاله:
Air express network design based on express path choices e Chinese case study
سال انتشار : 2016
برای دانلود رایگان مقاله شبکه اکسپرس هوایی اینجا کلیک نمایید.
بخشی از مقاله انگلیسی:
4. Mathematical model
The decision making of the express companies with the objective of maximizing benefits can be described using the idea of a bilevel programming model, where the upper model chooses hubs and creates links and the lower model simulates the path choice behavior based on a user equilibrium principle to find paths for the cargo between OD pairs. Finally, the schemes designed by the upper model will be evaluated. According to the above analyses, the upper model here represents the problem of designing an air cargo transportation network and deploying link capacities to minimize transportation costs. The model’s output is the network structure, which contains the topological relationship and the impedance functions of links. Because cargo between cities is assumed to choose paths based on path impedances, decision makers may assign the cargo between OD pairs to paths with the user equilibrium assignment model in the lower level. The assignment model can output link flows and the corresponding unit costs, which will be used as the value of the objective function of the upper model.
برای دانلود رایگان مقاله شبکه اکسپرس هوایی اینجا کلیک نمایید.
کلمات کلیدی:
Air express network design based on express path ... - ScienceDirect www.sciencedirect.com/science/article/pii/S0969699715301393 by S Yu - 2016 - Cited by 1 - Related articles May 12, 2016 - As the result, the Chinese air express transportation network is a mixture of “point-to-point” networks and “hub-and-spoke” networks. [PDF]ABSTRACT Title of Dissertation: AIR EXPRESS NETWORK DESIGN ... drum.lib.umd.edu/bitstream/1903/7626/1/umi-umd-4897.pdf by S Ngamchai - 2007 - Cited by 2 - Related articles AIR EXPRESS NETWORK DESIGN WITH HUB SORTING. By. Somnuk Ngamchai. Dissertation submitted to the Faculty of the Graduate School of the. University ... Air Express Network Design with Hub Sorting drum.lib.umd.edu/handle/1903/7626 by S Ngamchai - 2007 - Cited by 2 - Related articles Nov 5, 2007 - This dissertation examines an innovative strategic operation for next day air package delivery. The proposed system, in which some packages ... [DOC]air express network design with hub sorting - wctrs www.wctrs-society.com/wp/wp-content/.../SomnukPS_11WCTR_revised043007.doc by S Ngamchai - Related articles In this study, network design for next day air express package delivery is considered in conjunction with hub sorting operations. With a limited time window as a ... Air express network design based on express path ... - ResearchGate https://www.researchgate.net/.../303041058_Air_express_network_design_based_on_ex... Air express network design based on express path choices – Chinese case study on ResearchGate, the professional network for scientists.
