The RPM office

About the RPM
Phase One Project


The Red and Purple Modernization (RPM) Phase One Project is the largest capital project in CTA history, consisting of a new bypass structure just north of the Belmont station, a complete rebuild of the Lawrence, Argyle, Berwyn and Bryn Mawr stations and the installation of a new signal system between Howard and Belmont.

While large-scale mega-projects of this type come with benefits, such as smoother, more reliable service, relief of overcrowding and larger, modern stations with ADA accessibility, they also come with unique challenges due to their longevity and complexity. Recognizing that there will be challenges, CTA is taking a conscientious approach to construction and working closely with each of the communities and its leaders to minimize negative impacts.

Timeline. Pre-stage, 2019-2021. Stage A, 2021-2023. Stage B, 2022-2024.