Tue March 02, 2021 - Midwest Edition #5 CTA Most of the new track structure in the Lawrence to Bryn Mawr project area will be built with pre-cast concrete segments that are created off-site, trucked in and installed with a gantry system. Mayor Lori Lightfoot and the Chicago Transit Authority (CTA) unveiled the designs for four Red Line stations that will be fully reconstructed as part of the Red and Purple Modernization (RPM) Phase One project, the largest transit investment in CTA history and the latest among several Red Line improvement projects over the last decade. CTA will rebuild the Lawrence, Argyle, Berwyn and Bryn Mawr rail stations, transforming each into new, modern, larger and fully accessible stations to customers with disabilities. The new stations will include elevators and escalators, wider platforms and vastly improved amenities, better serving the more than four million customers who enter the stations each year.