Facility Analysis and Planning
CTA Red-Purple Line Modernization Preliminary Engineering
The CTA Red-Purple Line Modernization is the largest capital improvement in the history of the transit organization. The ambitious $2.1B Core Capacity project is designed to increase passenger volume without expanding the footprint. The project involves replacement of tracks and stations between Lawrence and Bryn Mawr, and Brownline tracks in the Lakeview neighborhood and creating a bypass for the Brownline just north of the Belmont station.
AltusWorks is the Historic Preservation Consultant on the design team. Built in 1924, the Red-Purple Line corridor passes through five historic districts and touches dozens of historic structures. AltusWorks is tasked with providing recommendations on how to best minimize negative impact on these historic resources through coordinating the findings from the environmental impact study and the Federal Historic Preservation Section 106 process with the design of the rail system and modern station houses.