I-290 (I-355 to I-88 Reagan Memorial Tollway)

Feb 13, 2014

I-290 (I-355 to I-88 Reagan Memorial Tollway) Congestion Scan

The Chicago region traffic congestion scans were created by averaging five minute speed data obtained from freeway loop detectors, radar, and mobile technology data. The traffic scans display average speed on a freeway corridor as a function of time of day (the x-axis) and location (the y-axis) along a freeway corridor.

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 Scan

I-290, Eisenhower Expressway from I-355 to I-88 Reagan Tollway. Congestion Scan, 2016.  Showing average speed by milepost by time of day by direction of travel.

Note: for best viewing, in Chrome, right-click on the graphic, then open in a new tab.  In other browsers, the image may be saved or downloaded as a PDF below.

Download high-resolution PDF (all vehicles, as above)

Download high resolution PDF (trucks only)

Crash Scan

I-290 from I-90 Addams Tollway to I-88 Reagan Tollway, Crash Scan 2008-2012.  Showing total crashes per 100 million vehicle-miles traveled by milepost by direction of traveled.

Note: This chart's limits are substantially longer than the congestion chart's limits, above.

Performance Data

Non-Holiday Tuesdays, Wednesdays, Thursdays:

East-bound I-290/Eisenhower Expressway

Measure 2010 2011
Free-Flow Travel Time
(Minutes)
10.59 9.33
Average AM Peak-Period
Travel Time (Minutes)
14.12 14.90
AM Travel Time Index 1.33 1.60
Average PM Peak-Period
Travel Time (Minutes)
16.16 16.95
PM Travel Time Index

1.53

1.82
AM Peak-Period
95th Percentile Travel Time
(Minutes)

23.00

22.15

AM Peak-Period
Planning Time Index

2.17

2.37
PM Peak-Period
95th Percentile Travel Time
(Minutes)

27.09

24.07
PM Peak-Period
Planning Time Index

2.56

2.58
Congested Hours

9.94

8.33

West-bound I-290/Eisenhower Expressway

Measure

2010

2011
Free-Flow Travel Time
(Minutes)

9.84

9.54
Average AM Peak-Period
Travel Time (Minutes)

13.65

11.80
AM Travel Time Index

1.39

1.24
Average PM Peak-Period
Travel Time (Minutes)

16.13

13.17
PM Travel Time Index

1.64

1.38
AM Peak-Period
95th Percentile Travel Time
(Minutes)

20.60

14.30

AM Peak-Period
Planning Time Index

2.09

1.50
PM Peak-Period
95th Percentile Travel Time
(Minutes)

29.57

19.17
PM Peak-Period
Planning Time Index

3.01

2.01
Congested Hours

10.79

8.46

 

About the Data

2016 scans were prepared using the RITIS system, developed by the University of Maryland's CATT Lab.  Data comes from the National Performance Measure Research Dataset (NPMRDS), a HERE dataset made available to states and MPOs through the Freight Management and Operations Program of the Federal Highway Administration.  
 

Notice: 2016 congestion scans are based upon work supported by the Federal Highway Administration under contract number DTFH-13-C-00012. Any opinions, findings, and conclusions or recommendations expressed in this publication are those of the author(s) and do not reflect the views of the Federal Highway Administration. 

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