CTA Proposed Red-Purple Bypass: Track Level View

The CTA's Red and Purple Modernization Program would completely rebuild the northern portion of the Red and Purple Lines (Belmont to Linden). By replacing century-old stations and track structures, the CTA can meet growing demand and improve service for the next 60-80 years. Part of the RPM project includes building a Red-Purple bypass north of Belmont station where Red, Brown and Purple Line trains intersect. This 1907-built junction has now capped the CTA's ability to add more trains as ridership grows. Here is an engineering animation at track level of how Brown Line trains would use the bypass to travel over Red and Purple Line tracks. The bypass would significantly improve speed and reliability and allow CTA to add trains to meet growing ridership.