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Why choose the new I-35W Mississippi River Bridge?

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Author Info

  • Carlos Carrion
  • David Levinson

    () (Nexus (Networks, Economics, and Urban Systems) Research Group, Department of Civil Engineering, University of Minnesota)

Abstract

On September 18th 2008, a replacement for the previously collapsed I-35W bridge opened to the public. Consequently, travelers were once again confronted with the opportunity to find better alternatives. The traffic pattern of the Minneapolis road network was likely to readjust, because of the new link addition. However, questions arise about the possible reasons (or components in the route choice process) that are likely to influence travelers crossing the Mississippi, who had to choose among the bridge options, including the new I-35W bridge. Using GPS data and web-based survey collected both before and after the replacement bridge opened, a bridge choice model is estimated using weighted-least squares logit. In this way the proportion of I-35W trips can be estimated depending on the assigned values of the explanatory variables, which include: statistical measures of the travel time distribution experienced by the subjects, alternative diversity, and others. The results showed that travel time savings and reliability were the main reasons for choosing the new I-35W bridge.

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File URL: http://nexus.umn.edu/Papers/I-35W-BridgeChoice.pdf
File Function: First version, 2010
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Bibliographic Info

Paper provided by University of Minnesota: Nexus Research Group in its series Working Papers with number 000082.

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Date of creation: 2010
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Handle: RePEc:nex:wpaper:i-35w-bridgechoice

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Postal: Dept. of Civil Engineering, 500 Pillsbury Drive SE, Minneapolis, MN 55455
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Web page: http://nexus.umn.edu
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Related research

Keywords: I-35W Mississippi River Bridge; Route Choice; Route Assignment; Traffic Assignment; Discrete Choice;

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