Modeling Trip Generation with Data from Single and Two Independent Cross-Sectional Travel Surveys
Publication: Journal of Urban Planning and Development
Volume 130, Issue 4
Abstract
This paper investigates the possibility of developing trip generation models using data collected at two or more points in time in independent cross-sectional travel surveys conducted in the same urban area. Alternative methods for formulating a forecasting model based on the availability of cross-sectional data from two time periods are presented. Models are then estimated on the study data and the models assessed in terms of their ability to replicate the number of trips made at the disaggregate household level, and at the aggregate traffic zone level in the two model-estimation datasets, respectively. The performance of these jointly estimated models is compared to the predictive performance of a conventional single cross-section trip generation model estimated on each period’s data only. The formulated models are then applied to forecast trips at the disaggregate household level, and at the aggregate traffic zone level on a third independent cross-sectional dataset collected in the same urban area but at a different point in time. Again, forecast performance of the formulated jointly estimated models is compared to forecast performance of the conventional model estimated on this third independent dataset. The results show that well specified joint models estimated on data from two time periods yield superior disaggregate and aggregate forecasts to those obtained from conventional forecasting models, which are estimated with data from a single cross-sectional survey.
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Information & Authors
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Published In
Journal of Urban Planning and Development
Volume 130 • Issue 4 • December 2004
Pages: 167 - 174
Copyright
Copyright © 2004 ASCE.
History
Published online: Nov 15, 2004
Published in print: Dec 2004
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