Travel time and congestion data for the Chicago Area IDOT expressways will be unavailable periodically today.   
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Map Legend
IconDescription
Chicago-oriented Travel Times (mins.)
Link Travel Times (mins.)

Incident

Construction

Special Event
Heavy Congestion (0 - 15 mph)
Medium Congestion (15 - 35 mph)
Light Congestion (35 - 55 mph)
Uncongested (55 mph)
Unknown Congestion
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Thu Mar 11 12:53:06 CST 2010