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I-355 Veterans Memorial Tollway (I-80 to I-55)

Graphics

I-355, Veterans Memorial Tollway from I-80 to I-55 Congestion Scan - 2011. Click on graphic to open congestion scan.

I-355, Veterans Memorial Tollway from I-80 to I-55 Congestion Scan - 2011 (click for pdf version)

I-355, Veterans Memorial Tollway from I-80 to I-55 Congestion Scan - 2009. Click on graphic to open congestion scan; click again to improve graphic resolution.

I-355, Veterans Memorial Tollway from I-80 to I-55 Congestion Scan - 2009 (click for pdf version)

Performance Data

Non-Holiday Tuesdays, Wednesdays, Thursdays:

South-bound I-355/Veterans Memorial Tollway

Measure 2008 2009 2010 2011
Free-Flow Travel Time
(Minutes)
11.84 11.85 11.86 11.63
Average AM Peak-Period
Travel Time (Minutes)
11.96 12.10 11.98 12.01
AM Travel Time Index 1.01 1.02 1.01 1.03
Average PM Peak-Period
Travel Time (Minutes)
12.09 12.09 11.93 11.75
PM Travel Time Index

1.02

1.02

1.01 1.01
AM Peak-Period
95th Percentile Travel Time
(Minutes)

12.35

12.60

12.63 12.86

AM Peak-Period
Planning Time Index

1.04

1.06

1.06 1.11
PM Peak-Period
95th Percentile Travel Time
(Minutes)

12.63

12.71

12.53 12.59
PM Peak-Period
Planning Time Index

1.07

1.07

1.06 1.08
Congested Hours

0.13

0.12

0.14 0.12

 

North-bound I-355/Veterans Memorial Tollway

Measure

2008

2009

2010 2011
Free-Flow Travel Time
(Minutes)

11.81

11.85

12.18 11.50
Average AM Peak-Period
Travel Time (Minutes)

12.06

12.00

12.22 11.73
AM Travel Time Index

1.02

1.01

1.00 1.02
Average PM Peak-Period
Travel Time (Minutes)

12.02

12.07

12.46 11.79
PM Travel Time Index

1.02

1.02

1.02 1.03
AM Peak-Period
95th Percentile Travel Time
(Minutes)

12.52

12.43

12.93 12.39

AM Peak-Period
Planning Time Index

1.06

1.05

1.06 1.08
PM Peak-Period
95th Percentile Travel Time
(Minutes)

12.74

12.59

13.14 12.53
PM Peak-Period
Planning Time Index

1.08

1.06

1.08 1.09
Congested Hours

0.17

0.09

0.13 0.11
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