Citation

Goodwin PB. Proc. IRCOBI 1975; 3: 256-370.

Copyright

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

DOI

unavailable

PMID

unavailable

Abstract

Analysis of data from the National Travel Survey 1972-3 indicates that as population density increases, (a) the total number of stages per person remains constant; (b) the average stage distance is less; (c) travel is slower; (d) the use of private transport decreases the effects combine in such a way that; (e) the average time taken per stage for each mode separately and in total is approximately constant; (f) the total amount of time spent on all travel per person is approximately constant. A mathematical model based on fairly simple economic principles is discussed, and although this is not yet fully compatible with the empirical findings, it seems to offer a possibly useful approach.