MAG Bottleneck Study 2014-2016

(Version 2.0, updated on May 23, 2017)

Interactive Bottleneck Report

*Powered by National Performance Management Research Data Set (NPMRDS).
*See More Info for bottleneck identification algorithm.
Click the interactive data report below to select, filter, or sort data on the charts. To resume to the default view, use 'Reset' button at the bottom.
Click the interactive data report above to select, filter, or sort data on the charts. To resume to the default view, use 'Reset' button at the bottom.

Case Study: I-10 Freeway Corridor through Downtown Phoenix

* For more details, check More Info for a paper about this case study published at Transportation Research Record.

Scroll through the infographic below to learn more about how the Time-Lapse Aerial Photography survey was conducted.

Findings of Case Study

Origin-Destination Volumes (2 hours)

Travelling Direction
Travelling Direction
Travelling Direction
Travelling Direction

Speed and Lane Changing

  • Use tabs below to examine Travel Speed and Frequency of Lane Changing along road segments for each lane by travelling direction and peak period.
  • The size of square indicates the frequency of lane changes; the color of square indicates the median speed.

    • More Information

    Related Material

  • Bottleneck Identification Algorithm
  • Time-Lapse Aerial Photography Study (Download)
  • MAG Transportation Data Management System
    • MAG

    Project Contact

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      Disclaimer: This report and/or data was funded in part through grant[s] from the Federal Highway Administration and/or Federal Transit Administration, U.S. Department of Transportation. The contents of this report reflect the views and opinions of the author(s) who is responsible for the facts and accuracy of the data presented herein. The contents do not necessarily state or reflect the official views or policies of the U.S. Department of Transportation, the Arizona Department of Transportation, or any other State or Federal Agency. This report does not constitute a standard, specification or regulation. The information in this publication is provided on an “as is” basis, and there are no warranties, expressed or implied, including, but not limited to, any warranties of merchantability or fitness for a particular purpose. In no event shall MAG be liable for any damages resulting from the use of the information. MAG provides the information in good faith and has endeavored to create and maintain accurate data. The users of this report are advised to use the data with caution and to independently verify accuracy.