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A network design problem is formulated as a bi-level program generally. In the traffic system, on the one hand, guidance facilities are invested and built. On the other hand, travelers can choose their paths according to both guidance information and their experience. In this paper, based on the relationship above, the optimization plan is established. The objective function at the upper level is...
In the traffic system with flow guidance, travelers can choose their paths according to both guidance information and their experience. In this paper, based on the relationship between the effects of traffic guidance and the construction cost, the optimization plan is established as a bi-level program. The objective function at the upper level is defined as the total travel time on the network, plus...
Intersection traffic network in city is a hybrid dynamic system, which combines discrete factor with continuous behaviors. Characterized by dynamics,concurrence and synchronization, it is hard to simulate accurately. A modeling method based on farraginous CPN(colored petri net) is constructed in this paper. Objects of traffic system are classifying with coloration, and granting-time mechanism is introduced...
First, trend of development of container ports is described in this thesis. Then, some economic theory in port planning, mathematical methods in optimization of transportation networks, and relevant research about application of game theory on transportation are concluded. The principle of competition in port market is analyzed and the interactive relationship among port authority, carrier and shipper...
To resolve vehicle routing problem in logistic field, genetic arithmetic and ant colony arithmetic are often employed, and each runs with merit and defect. In the paper, two algorithm thinking are integrated based on each trait. Firstly a rapid and excellent solution arises in anterior genetic operation, and initial information elements derive from the solution, and then ant colony arithmetic starts...
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