IL: Interstate 55 Reconstruction Project


Interstate 55 Reconstruction Project
Interstate 55 in Madison County, IL

IDOT used a new comprehensive strategy to manage traffic and accelerate the construction schedule for its project that reconstructed 11 miles of Interstate 55, a heavily traveled route near St. Louis. The traffic control strategy included use of innovative staging and a computer-assisted traffic control system.

This Smart Traffic Monitoring System monitored real-time traffic conditions and automatically updated dynamic messaging, including driving instructions and current delay times for particular locations. Due to this system and other innovative strategies by IDOT, the $42.3 million project was completed ahead of schedule with very few accidents, significant resource savings, and excellent feedback from the public.

 

IL: Interstate 55 Reconstruction Project

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