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I-90 Jane Addams Memorial Tollway (IL 31 to County Line Road,McHenry County)

Graphics

I-90, Jane Addams Memorial Tollway from IL-31 to County Line Road, McHenry County, Congestion Scan - 2011, showing average speed by milepost by time of day. Click on the graphic to open congestion scan.

I-90, Jane Addams Memorial Tollway from IL-31 to County Line Road Congestion Scan - 2011 (click for pdf version)

Performance Data

Non-holiday Tuesdays, Wednesdays, and Thursdays:

East-bound I-90/Jane Addams Memorial Tollway

Measure 2010 2011
Free-Flow Travel Time
(Minutes)

21.58

21.29
Average AM Peak-Period
Travel Time (Minutes)
22.26 22.09
AM Travel Time Index 1.03 1.04
Average PM Peak-Period
Travel Time (Minutes)
22.16 22.18
PM Travel Time Index

1.03

1.04
AM Peak-Period
95th Percentile Travel Time
(Minutes)

23.45

23.55

AM Peak-Period
Planning Time Index

1.09

1.11
PM Peak-Period
95th Percentile Travel Time
(Minutes)

23.18

23.30
PM Peak-Period1.07
Planning Time Index

1.07

1.09
Congested Hours

0.15

0.25

 

West-bound I-90/Jane Addams Memorial Tollway

Measure

2010

2011
Free-Flow Travel Time
(Minutes)

21.89

21.38
Average AM Peak-Period
Travel Time (Minutes)
22.85 22.85
AM Travel Time Index

1.04

1.07
Average PM Peak-Period
Travel Time (Minutes)

22.68

22.60
PM Travel Time Index

1.04

1.06
AM Peak-Period
95th Percentile Travel Time
(Minutes)

24.31

25.74

AM Peak-Period
Planning Time Index

1.11

1.20
PM Peak-Period
95th Percentile Travel Time
(Minutes)

24.07

25.31
PM Peak-Period
Planning Time Index

1.10

1.18
Congested Hours

0.23

1.37

 

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Questions or comments? Contact Tom Murtha.

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