Evaluating the Effects of I-35W Bridge Collapse on Road-Users in the Twin Cities Metropolitan Region
AbstractThis study evaluates the e?ects of I-35W bridge collapse on road-users in the Twin- Cities metropolitan area. We adopted the Twin-Cities (Metropolitan Minneapolis and St. Paul) Seven-County travel demand model developed in previous research, re-calibrated it against July 2007 loop detector tra?c data, and used this model to carry out an evaluation of economic loss incurred by increased travel delay in alter- native scenarios before and after the bridge collapse. We concluded that the failure of the I-35W bridge resulted in an economic loss of $71,000 to $220,000 a day, de- pending on how ßexible road-users in the system can adjust their trip destinations in response to the bridge closing. We also estimated that the major tra?c restoration pro jects Mn/DOT has implemented in quick response to the bridge collapse can save road-users $9,500 to $17,500 a day. This translates into a beneÞt-cost ratio of 2.0-9.0, suggesting these pro jects are highly beneÞciary in an economic sense. In this analysis, the use of a simpliÞed, scaled-down travel demand model enabled us to carry out the analysis quickly and accurately, showing its contributions in transportation planning under situations such as emergency relief and comprehensive design.
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Bibliographic InfoPaper provided by University of Minnesota: Nexus Research Group in its series Working Papers with number 000043.
Date of creation: 2008
Date of revision:
Publication status: Published in working paper
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Postal: Dept. of Civil Engineering, 500 Pillsbury Drive SE, Minneapolis, MN 55455
Phone: +01 (612) 625-6354
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Web page: http://nexus.umn.edu
More information through EDIRC
I-35W Bridge; Minnesota; Minneapolis; Economic Evaluation;
Find related papers by JEL classification:
- R41 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Systems - - - Transportation: Demand, Supply, and Congestion
- R48 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Systems - - - Government Pricing and Policy
- D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
This paper has been announced in the following NEP Reports:
- NEP-ALL-2008-08-14 (All new papers)
- NEP-GEO-2008-08-14 (Economic Geography)
- NEP-URE-2008-08-14 (Urban & Real Estate Economics)
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Norah Montes de Oca & Feng Xie & David Levinson, 2006.
"Forecasting and Evaluating Network Growth,"
000010, University of Minnesota: Nexus Research Group.
- Shanjiang Zhu & David Levinson, 2011. "Disruptions to Transportation Networks: A Review," Working Papers 000040, University of Minnesota: Nexus Research Group.
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