To express integrated optimization of multifile hubs location and mixed network design, a bi-level programming model was introduced for mathematical models. The upper-level programming problem is a multi-objective programming model to minimize total impedance in a network and minimize total investment budget. The lower-level problem is a user equilibrium assignment with fixed demand. Specific design and solving steps based on immune clone algorithm was given. Then a numeric example for solving under the conditions of different decision weights was given. The result demonstrates that (1) the model is effective and the algorithm is feasible; (2) after the hubs are built, if the decision is in favour of transport network management, there are more trends to build new roads to reduce network costs and overall costs.
Integrated Optimization of Multiple Hubs Location and Mixed Network Design Based on Immune Clone Algorithm
2011-02-15
72011-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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