Web Content Display

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Web Content Display

I-57 (I-94 to I-80)

Graphics

I-57 from I-94 to I-80 Congestion Scan - 2011, showing average speed by milepost by time of day. Click on graphic to open congestion scan.

I-57 from I-94 to I-80 Congestion Scan - 2011 (click for pdf version)

I-57 from I-94 to I-80 Congestion Scan - 2009, showing average speed by milepost by time of day. Click on graphic to open congestion scan; click again to improve graphic resolution.

I-57 from I-94 to I-80 Congestion Scan - 2009 (click for pdf version)

I-57 from I-94 to I-80 Congestion Scan - 2007, showing average speed by milepost by time of day. Click on graphic to open congestion scan; click again to improve graphic resolution.

I-57 from I-94 to I-80 Congestion Scan - 2007 (click for pdf version)

Performance Data

Non-holiday Tuesdays, Wednesdays, and Thursdays:

South-bound I-57

Measure 2007 2008 2009 2010 2011
Free-Flow Travel Time
(Minutes)
13.80 12.70 13.08 13.83 13.59
Average AM Peak-Period
Travel Time (Minutes)
15.04 13.57 13.98 15.24 15.82
AM Travel Time Index 1.09 1.07 1.07 1.10 1.16
Average PM Peak-Period
Travel Time (Minutes)
15.25 15.18 15.74 15.77 15.23
PM Travel Time Index

1.10

1.20

1.20

1.14 1.12
AM Peak-Period
95th Percentile Travel Time
(Minutes)

17.41

14.48

15.32

17.36 17.35

AM Peak-Period
Planning Time Index

1.26

1.14

1.17

1.26 1.28
PM Peak-Period
95th Percentile Travel Time
(Minutes)

17.98

20.43

20.26

18.51 17.69
PM Peak-Period
Planning Time Index

1.30

1.61

1.55

1.34 1.30
Congested Hours

3.48

2.31

2.48

8.40 2.43

 

North-bound I-57

Measure

2007

2008

2009

2010 2011
Free-Flow Travel Time
(Minutes)

14.13

12.57

13.78

14.55 13.81
Average AM Peak-Period
Travel Time (Minutes)

19.47

15.83

18.00

19.19 20.86
AM Travel Time Index

1.38

1.26

1.31

1.32 1.51
Average PM Peak-Period
Travel Time (Minutes)

15.94

13.57

14.54

15.15 14.84
PM Travel Time Index

1.13

1.08

1.06

1.07 1.07
AM Peak-Period
95th Percentile Travel Time
(Minutes)

27.37

22.34

27.50

28.56 32.54

AM Peak-Period
Planning Time Index

1.94

1.78

2.00

1.96 2.36
PM Peak-Period
95th Percentile Travel Time
(Minutes)

22.45

14.97

16.64

16.82 16.11
PM Peak-Period
Planning Time Index

1.59

1.19

1.21

1.16 1.17
Congested Hours

6.38

2.43

6.67

12.54 3.86

 

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