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-90 Jane Addams Memorial Tollway I-294 to Elgin Avenue
Feb 7, 2014
I-90 Jane Addams Memorial Tollway (I-294 to Elgin Avenue) Congestion Scans
Congestion Scans
I-90, Jane Addams Memorial Tollway from I-294 to Elgin Avenue Congestion Scan, 2009. Showing average speed by milepost by time of day.
I-90, Jane Addams Memorial Tollway from I-294 to Elgin Avenue Congestion Scan, 2007. Showing average speed by milepost by time of day.
Performance Data
Non-holiday Tuesdays, Wednesdays, and Thursdays:
East-bound I-90/Jane Addams Memorial Tollway
| Measure | 2007 | 2008 | 2009 |
|---|---|---|---|
|
Free-Flow Travel Time (Minutes) |
22.72 | 22.75 | 23.41 |
|
Average AM Peak-Period Travel Time (Minutes) |
29.07 | 28.38 | 28.14 |
| AM Travel Time Index | 1.28 | 1.25 | 1.20 |
|
Average PM Peak-Period Travel Time (Minutes) |
26.52 | 26.45 | 25.63 |
| PM Travel Time Index |
1.17 |
1.16 |
1.09 |
|
AM Peak-Period 95th Percentile Travel Time (Minutes) |
37.07 |
38.23 |
38.45 |
|
AM Peak-Period |
1.63 |
1.68 |
1.64 |
|
PM Peak-Period 95th Percentile Travel Time (Minutes) |
36.03 |
35.60 |
31.16 |
|
PM Peak-Period Planning Time Index |
1.59 |
1.57 |
1.33 |
| Congested Hours |
4.83 |
4.07 |
2.65 |
West-bound I-90/Jane Addams Memorial Tollway
| Measure |
2007 |
2008 |
2009 |
|---|---|---|---|
|
Free-Flow Travel Time (Minutes) |
22.19 |
22.42 |
23.60 |
|
Average AM Peak-Period Travel Time (Minutes) |
23.43 |
23.81 |
25.06 |
| AM Travel Time Index |
1.06 |
1.06 |
1.06 |
|
Average PM Peak-Period Travel Time (Minutes) |
26.94 |
28.39 |
29.19 |
| PM Travel Time Index |
1.21 |
1.27 |
1.24 |
|
AM Peak-Period 95th Percentile Travel Time (Minutes) |
24.36 |
25.49 |
27.56 |
|
AM Peak-Period |
1.10 |
1.14 |
1.17 |
|
PM Peak-Period 95th Percentile Travel Time (Minutes) |
33.88 |
37.95 |
38.73 |
|
PM Peak-Period Planning Time Index |
1.53 |
1.69 |
1.64 |
| Congested Hours |
1.50 |
1.85 |
2.07 |
About the Data
Data provided by IDOT, Illinois Tollway, and HERE.
Feb 7, 2014
I-90 Jane Addams Memorial Tollway (I-294 to Elgin Avenue) Congestion 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-90, Jane Addams Memorial Tollway from I-294 to Elgin Avenue Congestion Scan, 2009. Showing average speed by milepost by time of day.
I-90, Jane Addams Memorial Tollway from I-294 to Elgin Avenue Congestion Scan, 2007. Showing average speed by milepost by time of day.
Performance Data
Non-holiday Tuesdays, Wednesdays, and Thursdays:
East-bound I-90/Jane Addams Memorial Tollway
| Measure | 2007 | 2008 | 2009 |
|---|---|---|---|
|
Free-Flow Travel Time (Minutes) |
22.72 | 22.75 | 23.41 |
|
Average AM Peak-Period Travel Time (Minutes) |
29.07 | 28.38 | 28.14 |
| AM Travel Time Index | 1.28 | 1.25 | 1.20 |
|
Average PM Peak-Period Travel Time (Minutes) |
26.52 | 26.45 | 25.63 |
| PM Travel Time Index |
1.17 |
1.16 |
1.09 |
|
AM Peak-Period 95th Percentile Travel Time (Minutes) |
37.07 |
38.23 |
38.45 |
|
AM Peak-Period |
1.63 |
1.68 |
1.64 |
|
PM Peak-Period 95th Percentile Travel Time (Minutes) |
36.03 |
35.60 |
31.16 |
|
PM Peak-Period Planning Time Index |
1.59 |
1.57 |
1.33 |
| Congested Hours |
4.83 |
4.07 |
2.65 |
West-bound I-90/Jane Addams Memorial Tollway
| Measure |
2007 |
2008 |
2009 |
|---|---|---|---|
|
Free-Flow Travel Time (Minutes) |
22.19 |
22.42 |
23.60 |
|
Average AM Peak-Period Travel Time (Minutes) |
23.43 |
23.81 |
25.06 |
| AM Travel Time Index |
1.06 |
1.06 |
1.06 |
|
Average PM Peak-Period Travel Time (Minutes) |
26.94 |
28.39 |
29.19 |
| PM Travel Time Index |
1.21 |
1.27 |
1.24 |
|
AM Peak-Period 95th Percentile Travel Time (Minutes) |
24.36 |
25.49 |
27.56 |
|
AM Peak-Period |
1.10 |
1.14 |
1.17 |
|
PM Peak-Period 95th Percentile Travel Time (Minutes) |
33.88 |
37.95 |
38.73 |
|
PM Peak-Period Planning Time Index |
1.53 |
1.69 |
1.64 |
| Congested Hours |
1.50 |
1.85 |
2.07 |
About the Data
Data provided by IDOT, Illinois Tollway, and HERE.