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I-94 Dan Ryan Expressway (I-57 to I-90 Skyway) Crash Scan

Crash scans show the rate of total highway crashes per 100 million vehicle-miles traveled (VMT) for 1/10 mile segments.  The purpose of these crash scans is to show highway planners and system managers how crashes are related to congestion.  Understanding where crashes are concentrated can help planners and engineers focus on improving those locations with the worst performance.

Congestion scans are not available on the Dan Ryan Expressway because of data issues.  In the future, another data source will be used to produce these scans.  At that time, congestion scans will be available system-wide, including on the Dan Ryan Expressway.

Crash Scan

I-94 Dan Ryan Expressway, I-90 Skyway to I-57 Crash Scan, 2008-12. Showing number of crash rates per 100 million vehicle miles traveled.

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Performance Data

Non-holiday Tuesdays, Wednesdays, and Thursdays

2008 - 2011 highway perfromance measures are not available at this time due to data issues.

2007 performance measures are not available for the Dan Ryan Expressway because of construction at the time. Performance measures for succeeding years will be produced as data becomes available.

About the Data

Data provided by IDOT, Illinois Tollway, and HERE. 

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