Implementation and evaluation of an asymmetric equilibrium route choice model incorporating intersection-related travel times
Meneguzzer, Claudio
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Permalink
https://hdl.handle.net/2142/18979
Description
Title
Implementation and evaluation of an asymmetric equilibrium route choice model incorporating intersection-related travel times
Author(s)
Meneguzzer, Claudio
Issue Date
1990
Doctoral Committee Chair(s)
Boyce, David E.
Department of Study
Civil and Environmental Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Civil
Language
eng
Abstract
This thesis considers theoretical and computational issues related to the development and implementation of an equilibrium route choice model with asymmetric cost functions that reflect traffic interactions at urban intersections. Detailed models of intersection operation are embedded into a user-optimal route choice framework, so that link costs can be represented by a set of realistic delay functions. The intersection analysis is mainly based on the methodologies proposed in the 1985 Highway Capacity Manual and subsequent amendments, and includes most of the intersection configurations that are encountered in practice. Also, a methodology for travel time analysis of urban and suburban arterials is applied to links between intersections in place of conventional link performance functions.
The model is implemented on a medium-size network located in the North Shore subregion of the Chicago region; a detailed network representation, in which turning movements at intersections are coded as separate links, is adopted. A network builder program, that creates the detailed representation starting from a conventional one, has been developed and applied to the case study. In addition, a procedure for interfacing the model with a conventional route choice model is implemented.
The solution of the asymmetric equilibrium route choice model incorporating the detailed intersection analysis is accomplished using the diagonalization algorithm. Extensive computational tests are carried out, and the model performance is evaluated for the network as a whole as well as at the level of individual intersections. Also, a comparative study of alternative model solutions is carried out. Finally, the issue of the uniqueness of the equilibrium solution is investigated both from a theoretical and a computational standpoint.
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