Illinois Department of Transportation, Erica Borggren, Acting Secretary
Patrick J. Quinn, Governor
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Welcome to the Interstate 55
Bus-On-Shoulder Demonstration Website!


The Regional Transportation Authority (RTA), Pace Suburban Bus, and the Illinois Department of Transportation (IDOT) are conducting a two year demonstration of transit bus operations on the Interstate 55 (Stevenson Expressway) left shoulder as a priority treatment for transit under congested highway conditions. An evaluation will be conducted during the second year to determine the effectiveness and usefulness of the bus-on-shoulder transit operations for improving mobility as well as the effects bus-on-shoulder operations have on travel conditions and safety for the motoring public in the general purpose highway lanes.

The Interstate 55 (Stevenson Expressway) demonstration will begin on November 14, 2011. The impacts will influence Pace Routes 755 and 855.

GOAL: to move the most people through congestion and promote public transportation

  • Improve transit service quality on Interstate 55
  • Improve customer experience and transit rider ship in the Interstate 55 travel corridor
  • Maintain normal shoulder functions and traffic safety
  • Maximize cost effectiveness of the regional transportation network

Bus-On-Shoulder Video Demonstration


Did you know work zone fatalities are down 29.6 percent compared to 2003? Aggressive law enforcement and awareness campaigns and significant improvements to work zone safety traffic control reduced Illinois work zone fatalities from 44 in 2003, including 5 workers, to provisionally 30 with 3 workers killed in 2010.
So, Give ‘em a brake…slow down for their sake and yours!

IDOT appreciates your patience and understanding as we work to improve the roadways in your community.


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