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I-90/94 Dan Ryan Expressway (Express Lanes I-90 Skyway to I-55)

Graphics

I-90/94, Dan Ryan Express Lanes from I-55 to I-90 Chicago Skyway Congestion - 2011, showing average speed by milepost by time of day. Click on graphic to open congestion scan.

I-90/94, Dan Ryan Express Lanes from I-55 to I-90 Chicago Skyway Congestion Scan - 2011 (click for pdf version)

I-90/94, Dan Ryan Express Lanes from I-55 to I-90 Chicago Skyway Congestion - 2009, showing average speed by milepost by time of day. Click on graphic to open congestion scan; click again to improve graphic resolution.

I-90/94, Dan Ryan Express Lanes from I-55 to I-90 Chicago Skyway Congestion Scan - 2009 (click for pdf version)

2007 congestion scans are unavailable for this highway segment because of construction activity at the time. Scans will be produced for subsequent years when data is available.

 

Performance Data

2007 performance measures are unavailable for this highway segment because of construction activity at the time. Performance measures will be produced for subsequent years when data is available.

Non-holiday Tuesdays, Wednesdays, and Thursdays:

East-bound I-90/94 Dan Ryan Express Lanes

Measure 2008 2009 2010 2011
Free-Flow Travel Time
(Minutes)

 

3.75 4.10 4.48
Average AM Peak-Period
Travel Time (Minutes)

 

4.21 4.51 4.72
AM Travel Time Index

 

1.12 1.10 1.06
Average PM Peak-Period
Travel Time (Minutes)

 

4.52 4.95 7.24
PM Travel Time Index

 

1.21 1.21 1.62
AM Peak-Period
95th Percentile Travel Time
(Minutes)

 

5.26 5.46 5.40

AM Peak-Period
Planning Time Index

 

1.40 1.33 1.21
PM Peak-Period
95th Percentile Travel Time
(Minutes)

 

6.36 5.72 10.05
PM Peak-Period
Planning Time Index

 

1.70 1.40 2.24
Congested Hours

 

0.68 .34 7.70

 

West-bound I-90/94 Dan Ryan Express Lanes

Measure

2008

2009 2010 2011
Free-Flow Travel Time
(Minutes)

 

3.75 4.27 4.39
Average AM Peak-Period
Travel Time (Minutes)

 

4.77 5.38 4.97
AM Travel Time Index

 

1.27 1.26 1.13
Average PM Peak-Period
Travel Time (Minutes)

 

4.13 4.73 4.74
PM Travel Time Index

 

1.10 1.11 1.08
AM Peak-Period
95th Percentile Travel Time
(Minutes)

 

7.76 6.46 6.04

AM Peak-Period
Planning Time Index

 

2.07 1.51 1.38
PM Peak-Period
95th Percentile Travel Time
(Minutes)

 

5.26 6.16 5.82
PM Peak-Period
Planning Time Index

 

1.40 1.44 1.33
Congested Hours

 

1.08 1.74 5.18

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Questions or comments? Contact Tom Murtha.

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