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Factors Affecting Travel Times on Urban Radial Routes.

By A.D. May and F.O. Montgomery


This paper presents the results-of a study of peak period travel times and potential causal factors conducted over a one year period on five radial routes. It describes the hypotheses tested and the survey design adopted and then presents results for inter-vehicle variation in travel time within 250 15 minute periods and for inter-period variation based on 1018 moving observer runs. Moving observer results are found to depend on flow over the previous half hour, and a modified time series analysis used to demonstrate this is outlinzd. The contriuhtion of other explanatory variables is also presented

Publisher: Institute of Transport Studies, University of Leeds
Year: 1984
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