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I-94 Bishop Ford Freeway (I-57 to I-80) Congestion and Crash Scans

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 Scans

I-94, Bishop Ford Freeway from I-57 to I-80/I-294/Tri-State Tollway Congestion Scan, 2011. Showing average speed by milepost by time of day.

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I-94, Bishop Ford Freeway from I-57 to I-80/I-294/Tri-State Tollway Congestion Scan, 2009. Showing average speed by milepost by time of day.

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Crash Scan

I-94 Bishop Ford Freeway, I-57 to I-80 Crash Scan, 2008-12Showing number of crash rates per 100 million vehicle miles traveled.

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Performance Data

Non-holiday Tuedays, Wednesdays, and Thursdays:

2007 performance measures are not available for the Bishop Ford Freeway because of construction at the time. Performance measures for succeeding years will be produced when the data becomes availalble.

East-bound I-94/Bishop Ford Freeway

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

11.32

11.07 11.00 11.09
Average AM Peak-Period
Travel Time (Minutes)

14.17

12.57 12.95 13.42
AM Travel Time Index

1.25

1.14 1.18 1.21
Average PM Peak-Period
Travel Time (Minutes)

17.42

16.26 14.64 15.16
PM Travel Time Index

1.54

1.47

1.33 1.37
AM Peak-Period
95th Percentile Travel Time
(Minutes)

18.96

14.99

14.97 15.26

AM Peak-Period
Planning Time Index

1.67

1.35

1.36 1.38
PM Peak-Period
95th Percentile Travel Time
(Minutes)

27.40

25.26

20.50 22.07
PM Peak-Period
Planning Time Index

2.42

1.47

1.86 1.99
Congested Hours

13.48

8.18

9.05 10.51

West-bound I-94/Bishop Ford Freeway

Measure

2008

2009

2010 2011
Free-Flow Travel Time
(Minutes)

11.25

10.58

10.83 10.75
Average AM Peak-Period
Travel Time (Minutes)

20.59

17.11

19.18 20.41
AM Travel Time Index

1.83

1.62

1.77 1.90
Average PM Peak-Period
Travel Time (Minutes)

13.88

12.50

12.55 12.56
PM Travel Time Index

1.23

1.18

1.16 1.17
AM Peak-Period
95th Percentile Travel Time
(Minutes)

35.54

34.72

33.36 36.72

AM Peak-Period
Planning Time Index

3.16

3.28

3.08 3.42
PM Peak-Period
95th Percentile Travel Time
(Minutes)

16.48

15.10

15.30 14.56
PM Peak-Period
Planning Time Index

1.47

1.43

1.41 1.36
Congested Hours

13.39

6.54

8.31 10.01

 

About the Data

Data provided by IDOT, Illinois Tollway, and HERE. 

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