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A Note on the Accuracy of the Continuum Approximation Spatial Aggregation Algorithm of Traffic Assignment

Author

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  • Yosef Sheffi

    (Massachusetts Institute of Technology, Cambridge, Massachusetts)

  • Robert Trexler

    (Systan, Inc., Los Altos, California)

Abstract

This paper investigates the accuracy of the probit approximation based solution of the spatial aggregation problem of traffic assignment. It tests the normal approximation to uniform intrazonal travel times and the Clark approximation to the solution of the choice probabilities between alternatives characterized by normally distributed travel times. Some guidelines for using the technique are developed.

Suggested Citation

  • Yosef Sheffi & Robert Trexler, 1980. "A Note on the Accuracy of the Continuum Approximation Spatial Aggregation Algorithm of Traffic Assignment," Transportation Science, INFORMS, vol. 14(4), pages 306-323, November.
    • Handle: RePEc:inm:ortrsc:v:14:y:1980:i:4:p:306-323
    DOI: 10.1287/trsc.14.4.306
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