Abstract
In modern transportation networks, there is a common phenomenon of overlapping of physical road sections and transport modes. In this study, the overlapping phenomenon in traffic network is defined as the generalized overlapping problem which is related to the failure of many existing models for users' route selection. When modeling the route selection behavior in the super-networks, the available routes are constrained by the overlapping of both the physical segments and the transport modes. In this paper, we propose a multi-level mixed logit model to investigate the correlation of generalized routes. Based on the proposed model, the traffic assignment of super network can be simplified as fixed point problem. By analyzing the error terms of the physical segments and the transport modes, we discuss the overlapping effects on the route choice. The results show that the proposed model can sole the overlapping problem effectively, which has significant effects on the route choice and traffic assignment problems in practice.
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