In this paper we propose a route choice and assignment model that enables to calculate the users' flows jointly on different transportation mode networks (car, transit, pedestrian, etc.); the proposed model assigns the "all-modes" O/D matrices relative to homogeneous users' classes directly on a multimodal supply network model, simulating the modal split "on network". The proposed model transforms the Nested Logit model of modal split and route choice into a Logit route choice model on a specified multimodal supply network. In the paper it is demonstrated the mathematical equivalence between the use of the Nested Logit model (mode choice and route choice) on monomodal supply networks and the use of the Logit model (route choice) on the proposed multimodal supply network. A solution algorithm based on MSA method is also provided. The proposed model is very useful when the demand should be assumed elastic at a mode choice level and when the flows should be calculated several times on different modal networks, as in the network design problems. A numerical test is performed on a small network in order to study the goodness of the proposed approach.

A multimodal route choice and assignment model on urban transportation networks

MONTELLA, BRUNO;D'ACIERNO, LUCA
2000

Abstract

In this paper we propose a route choice and assignment model that enables to calculate the users' flows jointly on different transportation mode networks (car, transit, pedestrian, etc.); the proposed model assigns the "all-modes" O/D matrices relative to homogeneous users' classes directly on a multimodal supply network model, simulating the modal split "on network". The proposed model transforms the Nested Logit model of modal split and route choice into a Logit route choice model on a specified multimodal supply network. In the paper it is demonstrated the mathematical equivalence between the use of the Nested Logit model (mode choice and route choice) on monomodal supply networks and the use of the Logit model (route choice) on the proposed multimodal supply network. A solution algorithm based on MSA method is also provided. The proposed model is very useful when the demand should be assumed elastic at a mode choice level and when the flows should be calculated several times on different modal networks, as in the network design problems. A numerical test is performed on a small network in order to study the goodness of the proposed approach.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/177594
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