Citation

Daly AJ, Zachary S. Proc. IRCOBI 1975; 3: 236-245.

Copyright

(Copyright © 1975, International Research Council on Biomechanics of Injury)

DOI

unavailable

PMID

unavailable

Abstract

The details are given of the formulation and calibration of modal split models (which may be used to predict the proportions of travelers who will use each of a given set of modes for given journeys (in the urban transportation context) in an effort to set these models on a sound logical and statistical basis, so that the effect of any necessary assumptions can clearly be seen. The paper discusses the hypotheses of traveller behavior which enable the setting up of modal choice models, and describes the techniques for validating the hypotheses and estimating the parameters of the models. The application of these models to urban transportation planning is outlined. The paper also indicates how the modeling and calibration techniques can be extended to other aspects of the planning process such as trip distribution and route choice.