"The project will extend construction of the corridor north to Joliet, allowing for 110-mph service along nearly 70 percent of the route. Construction is already underway on the Chicago – St. Louis corridor, and work on the extension to Joliet will begin this spring. Once construction is complete, travelers can expect reductions of more than an hour in trip time, with improved on-time performance as well. Ridership has grown 137 percent over the last five years. The state has plans to add more frequent trips, and further reduce trip times on this popular route in the future."
Thanks to Michael Snidal