Graphics:

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

 

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 

 

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