MODAL SPLIT MODELS FOR AIRPORT ACCESS

This report discusses and calibrates different modal split models which predict the share of access trips carried by an airport limousine service. The purpose of the analysis was to determine which of several alternative models are best suited for this prediction and to establish the nature of the demand itself. Unlike comprehensive demand models, modal split models assume that the total number of access trips is fixed and must merely be "split" between access modes. The underlying assumption is that the level of service provided by the different modes does not affect the total demand for air trips. Since the demand for air transportation is indeed, probably insensitive to moderate changes in access systems, modal split models seem appropriate for a first look at airport access. The report discusses two general forms of modal split models, aggregate and disaggregate, and their application to airport access. Aggregate models are calibrated with zonal averages of passengers and trip characteristics. Disaggregate models, attempt to explain intrazonal as well as interzonal variations. The development of the disaggregate and aggregate modal split models are presented in two separate sections. The authors have attempted to calibrate models which would predict the share of one mode only - limousine. It was felt that a one-mode model would be sufficient to evaluate the various model formulations and calibration techniques to be tested.

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Civil Engineering, 77 Massachusetts Avenue
    Cambridge, MA  USA  02139
  • Authors:
    • KOLLER, F
    • SKINNER, R
  • Publication Date: 1970-8

Subject/Index Terms

Filing Info

  • Accession Number: 00073886
  • Record Type: Publication
  • Source Agency: FLIGHT TRANSPORTATION LABORATORY, MIT DEPT. OF AERONAUTICS AND ASTRONAUTICS
  • Report/Paper Numbers: R70-47
  • Files: TRIS
  • Created Date: Sep 5 1974 12:00AM