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System optimizing flow and externalities in time-dependent road networks

Chow, A.H.F.; (2006) System optimizing flow and externalities in time-dependent road networks. In: Wong, S.C. and Hau, T.D. and Wang, J.J. and Chau, K.W. and Ho, H.W., (eds.) Proceedings of the 11th International Conference of Hong Kong Society for Transportation Studies, Hong Kong, 9-11 December 2006. Sustainable Transportation. (pp. pp. 138-147). Hong Kong Society for Transportation Studies: Hong Kong, China. Green open access

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Abstract

This paper develops a framework for analysing and calculating system optimizing flow and externalities in time-dependent road networks. The externalities are derived by using a novel sensitivity analysis of traffic models. The optimal network flow is determined by solving a state-dependent optimal control problem, which assigns traffic such that the total system cost of the network system is minimized. This control theoretic formulation can work with general travel time models and cost functions. Deterministic queue is predominantly used in dynamic network models. The analysis in this paper is more general and is applied to calculate the system optimizing flow for Friesz’s whole link traffic model. Numerical examples are provided for illustration and discussion. Finally, some concluding remarks are given.

Type:Proceedings paper
Title:System optimizing flow and externalities in time-dependent road networks
Open access status:An open access version is available from UCL Discovery
Publisher version:http://home.netvigator.com/~hksts/conf06b.htm
Language:English
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Civil, Environmental and Geomatic Engineering

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