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.
I-294 Tri-State Tollway (I-55 to I-80)
Feb 13, 2014
I-294 Tri-State Tollway (I-55 to I-80) Congestion and Crash Scans
Congestion Scans
I-294 Tri-State Tollway from I-55 Stevenson Expressway to I-80. 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-294 Tri-State Tollway, I-55 to I-94 Crash Scan, 2008-12. Showing number of crash rates per 100 million vehicle miles traveled.
Performance Data
Note: Because of construction, 2007 data are unavailable for this highway segment.
Southeast-bound I-294/Tri-State Tollway
Measure |
2008 |
2009 |
2010 |
2011 |
---|---|---|---|---|
Free-Flow Travel Time (Minutes) |
23.20 |
23.46 |
22.95 | 23.53 |
Average AM Peak-Period Travel Time (Minutes) |
24.97 |
25.35 |
24.28 | 24.27 |
AM Travel Time Index |
1.08 |
1.08 |
1.06 | 1.03 |
Average PM Peak-Period Travel Time (Minutes) |
26.63 |
25.55 |
24.12 | 24.41 |
PM Travel Time Index |
1.15 |
1.09 |
1.05 | 1.04 |
AM Peak-Period 95th Percentile Travel Time (Minutes) |
27.39 |
27.84 |
25.40 | 25.03 |
AM Peak-Period |
1.18 |
1.19 |
1.11 | 1.06 |
PM Peak-Period 95th Percentile Travel Time (Minutes) |
33.41 |
28.86 |
25.80 | 25.99 |
PM Peak-Period Planning Time Index |
1.44 |
1.23 |
1.12 | 1.10 |
Congested Hours |
4.35 |
2.00 |
0.78 | 0.64 |
Northwest-bound I-294/Tri-State Tollway
Measure |
2008 |
2009 |
2010 | 2011 |
---|---|---|---|---|
Free-Flow Travel Time (Minutes) |
23.03 |
22.70 |
23.39 | 23.46 |
Average AM Peak-Period Travel Time (Minutes) |
24.79 |
25.34 |
26.60 | 26.48 |
AM Travel Time Index |
1.08 |
1.12 |
1.14 | 1.13 |
Average PM Peak-Period Travel Time (Minutes) |
24.77 |
24.30 |
24.61 | 24.58 |
PM Travel Time Index |
1.08 |
1.07 |
1.05 | 1.05 |
AM Peak-Period 95th Percentile Travel Time (Minutes) |
28.02 |
29.73 |
35.55 | 35.01 |
AM Peak-Period |
1.22 |
1.31 |
1.52 | 1.49 |
PM Peak-Period 95th Percentile Travel Time (Minutes) |
26.90 |
26.58 |
26.07 | 26.26 |
PM Peak-Period Planning Time Index |
1.17 |
1.17 |
1.11 | 1.12 |
Congested Hours |
3.04 |
2.32 |
2.09 | 2.03 |
About the Data
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.Data provided by IDOT, Illinois Tollway, and HERE.
Feb 13, 2014
I-294 Tri-State Tollway (I-55 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.
Congestion Scans
I-294 Tri-State Tollway from I-55 Stevenson Expressway to I-80. 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-294 Tri-State Tollway, I-55 to I-94 Crash Scan, 2008-12. Showing number of crash rates per 100 million vehicle miles traveled.
Performance Data
Note: Because of construction, 2007 data are unavailable for this highway segment.
Southeast-bound I-294/Tri-State Tollway
Measure |
2008 |
2009 |
2010 |
2011 |
---|---|---|---|---|
Free-Flow Travel Time (Minutes) |
23.20 |
23.46 |
22.95 | 23.53 |
Average AM Peak-Period Travel Time (Minutes) |
24.97 |
25.35 |
24.28 | 24.27 |
AM Travel Time Index |
1.08 |
1.08 |
1.06 | 1.03 |
Average PM Peak-Period Travel Time (Minutes) |
26.63 |
25.55 |
24.12 | 24.41 |
PM Travel Time Index |
1.15 |
1.09 |
1.05 | 1.04 |
AM Peak-Period 95th Percentile Travel Time (Minutes) |
27.39 |
27.84 |
25.40 | 25.03 |
AM Peak-Period |
1.18 |
1.19 |
1.11 | 1.06 |
PM Peak-Period 95th Percentile Travel Time (Minutes) |
33.41 |
28.86 |
25.80 | 25.99 |
PM Peak-Period Planning Time Index |
1.44 |
1.23 |
1.12 | 1.10 |
Congested Hours |
4.35 |
2.00 |
0.78 | 0.64 |
Northwest-bound I-294/Tri-State Tollway
Measure |
2008 |
2009 |
2010 | 2011 |
---|---|---|---|---|
Free-Flow Travel Time (Minutes) |
23.03 |
22.70 |
23.39 | 23.46 |
Average AM Peak-Period Travel Time (Minutes) |
24.79 |
25.34 |
26.60 | 26.48 |
AM Travel Time Index |
1.08 |
1.12 |
1.14 | 1.13 |
Average PM Peak-Period Travel Time (Minutes) |
24.77 |
24.30 |
24.61 | 24.58 |
PM Travel Time Index |
1.08 |
1.07 |
1.05 | 1.05 |
AM Peak-Period 95th Percentile Travel Time (Minutes) |
28.02 |
29.73 |
35.55 | 35.01 |
AM Peak-Period |
1.22 |
1.31 |
1.52 | 1.49 |
PM Peak-Period 95th Percentile Travel Time (Minutes) |
26.90 |
26.58 |
26.07 | 26.26 |
PM Peak-Period Planning Time Index |
1.17 |
1.17 |
1.11 | 1.12 |
Congested Hours |
3.04 |
2.32 |
2.09 | 2.03 |
About the Data
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.Data provided by IDOT, Illinois Tollway, and HERE.