Land Consumption Impacts of a Transportation System on a City: An Analysis
The impacts of a changing transportation system on land consumption are analyzed. An analytical model with which to examine the intrinsic relationships between the volume of activities, the intensity of land use, and the modal split of generated trips is formulated on the basis of an idealized urban region that contains a city within radius R. The city land consists of that required for transportation and that for all other activities. Given hypothetical initial conditions, impacts of an increasing auto modal split are analyzed on the basis of three conceivable strategies to deal with the pressure to expand transportation facilities. The analysis shows that the modal split has a strong influence on volume of activities and land use intensity. A policy of infrastructure expansion to accommodate the increasing number of autos reduces the amount of land available for more fundamental activities that transport is intended to support, not displace. To prevent this displacement, land intensity of areas used for all other activities must increase. Otherwise, the options would be to relocate some activities from the city to outlying areas; such relocation could result in increasing traffic volumes in the entire region. Alternatively, the accommodation of other activities may encroach on previously protected or undevelopable land and lead to unsustainable development for the region. It is also shown that to maintain sustainability of a city, high-capacity transit modes with reserve capacity, such as rail transit systems, represent an efficient option in dense urban areas.
- Record URL:
- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://www.trb.org/Main/Blurbs/Transit_2009_Volume_1_162658.aspx
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Authors:
- Shin, Yong Eun
- Vuchic, Vukan R
- Bruun, Eric Christian
- Publication Date: 2009
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 69-77
- Monograph Title: Transit 2009, Volume 1
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Issue Number: 2110
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Land use; Public transit; Strategic planning; Sustainable development; Transit oriented development; Transportation modes; Urban development
- Uncontrolled Terms: Transportation infrastructure
- Subject Areas: Planning and Forecasting; Public Transportation; I20: Design and Planning of Transport Infrastructure;
Filing Info
- Accession Number: 01129354
- Record Type: Publication
- ISBN: 9780309126267
- Report/Paper Numbers: 09-1687
- Files: TRIS, TRB, ATRI
- Created Date: May 26 2009 7:36AM