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The Impact of Urban Form on Automobile Travel: Disentangling Causation from Correlation

Hedel, Ralf and Vance, Colin (2007) The Impact of Urban Form on Automobile Travel: Disentangling Causation from Correlation. In: 2007 Annual Meeting of Transportation Research Board, 86. Transportation Research Board (TRB). TRB 2007 (86. Annual Meeting), 2007-01-21 - 2007-01-25, Washington, DC (USA).

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Official URL: http://www.trb.org

Abstract

A longstanding question within the field of transportation demand management is the strength of the relationship between urban form and mobility behavior. Although several studies have identified a strong correlation between these variables, there is as yet scant evidence to support policy interventions that target land use as a means of influencing travel. To the contrary, some of the more recent research has cast skepticism on the proposition that the relationship is causative, recognizing the possibility that households endogenously self-select themselves into communities that support their preferences for particular transportation modes. Focusing on individual automobile travel, the present study seeks to contribute to this line of inquiry by estimating econometric models on a panel of travel-diary data collected in Germany between 1996 and 2003. Specifically, we employ the two-part model (2PM) – a procedure involving probit and OLS estimators – to assess the determinants of the discrete decision to use the car and the continuous decision of distance traveled. Beyond modeling variables that capture the urban form features that are commonly suggested to influence mobility behavior, including mixed use and public transit, this study employs instrumental variables to control for potential endogeneity emerging from the simultaneity of residential and mode choices. Unlike much of the work to date, our results suggest that urban form has a causative impact on car use, a finding that is robust to alternative econometric specifications.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:The Impact of Urban Form on Automobile Travel: Disentangling Causation from Correlation
Authors:
AuthorsInstitution or Email of Authors
Hedel, RalfUNSPECIFIED
Vance, ColinRheinisch-Westfälisches Institut für Wirtschaftsforschung (RWI Essen)
Date:21 January 2007
Journal or Publication Title:2007 Annual Meeting of Transportation Research Board
Refereed publication:Yes
In ISI Web of Science:No
Volume:86
Editors:
EditorsEmail
TRB, UNSPECIFIED
Publisher:Transportation Research Board (TRB)
Series Name:Proceedings of Annual Meeting of Transportation Research Board
Status:Published
Keywords:automobil travel, urban form, econometry
Event Title:TRB 2007 (86. Annual Meeting)
Event Location:Washington, DC (USA)
Event Type:international Conference
Event Dates:2007-01-21 - 2007-01-25
Organizer:Transportation Research Board
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Transport
HGF - Program Themes:V UR - Schonung von Umwelt und Ressourcen (old), V SM - Sicherung der Mobilität (old)
DLR - Research area:Transport
DLR - Program:V UR - Schonung von Umwelt und Ressourcen, V VR - Verkehrsforschung, V SM - Sicherung der Mobilität
DLR - Research theme (Project):V - Umweltwirkungen des Verkehrs (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Transport Research > Hauptabteilung Verkehrsforschung
Deposited By: Ralf Hedel
Deposited On:25 May 2007
Last Modified:27 Apr 2009 13:26

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