ROAD ASSIGNMENT--I: PRINCIPLES AND PARAMETERS OF MODEL FORMULATION
The factors which influence the formulation of road assignment models and the criteria by which different techniques may be compared and evaluated are discussed. In order to give the discussion a quantitative basis three basic parameters of network and model characteristics are defined: the degree of mathematical convergence achieved by the model, the degree of individual variations in the perception of travel costs, and the relative change in average travel costs due to congestion. A number of general principles involving these parameters are proposed. The importance of intrinsic errors and of overall objectives in formulating an assignment model are also strongly stressed. Parts II and III of this paper (the following two articles) illustrate the application of these principles in more specific situations: the GLTS (Greater London Transport Survey) model where capacity restraint is a dominant factor, and the development of stochastic methods for situations where capacity effects are generally excluded. /Author/
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Corporate Authors:
Pergamon Press, Incorporated
Maxwell House, Fairview Park
Elmsford, NY United States 10523 -
Authors:
- Van Vliet, D
- Publication Date: 1976-4
Media Info
- Features: Figures; References;
- Pagination: p. 137-143
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Serial:
- Transportation Research /UK/
- Volume: 10
- Issue Number: 3
- Publisher: Pergamon Press, Incorporated
Subject/Index Terms
- TRT Terms: Capacity restraint; Errors; Evaluation; Mathematical models; Mathematics; Networks; Quantitative analysis; Roads; Stochastic processes; Traffic assignment; Traffic congestion; Travel budgets; Travel costs; Urban transportation
- Uncontrolled Terms: Congestion; Convergence; Criteria; Models; Parameters
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting;
Filing Info
- Accession Number: 00139608
- Record Type: Publication
- Files: TRIS
- Created Date: Sep 16 1976 12:00AM