Chicago CTA RPM: Rail Infrastructure Advancements & Modernization

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Introduction

In 2017, the Chicago Transit Authority (CTA) initiated the Red and Purple Modernization (RPM) Phase One project, a significant infrastructure undertaking. This project, with a budget of $2.1 billion, focuses on modernizing the Red and Purple Lines on Chicago’s north side, specifically between Belmont and Howard.

Project Scope and Funding

The RPM Phase One project includes track reconstruction, signal system upgrades, and station improvements. The Federal Transit Administration (FTA) is contributing $1.1 billion to the project. The project aims to improve the efficiency and reliability of the Red and Purple Lines, which serve a large number of daily commuters.

Station Improvements

Station improvements are a key component of the RPM project. These improvements include accessibility upgrades to comply with the Americans with Disabilities Act (ADA), platform reconstruction, and the addition of new elevators and escalators. The project also involves the construction of new entrances and exits to improve passenger flow. The stations being upgraded include: Lawrence, Argyle, Berwyn, and Argyle.

Signal System Upgrades and PTC Solution

The RPM project also includes a complete overhaul of the signal system. This upgrade involves the implementation of a Positive Train Control (PTC) solution. This new system is designed to improve safety by automatically controlling train speed and preventing collisions. The signal system upgrades are essential for increasing the capacity of the Red and Purple Lines. This will allow for more trains to run during peak hours and reduce overcrowding.

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Timeline and Completion

The RPM Phase One project is a multi-year effort. The project is expected to be completed in phases, with various elements being completed at different times. The CTA is working to minimize disruptions to service during construction. The ultimate goal of the RPM project is to create a modern, efficient, and accessible public transit system for Chicago residents.

Conclusion

The Chicago Transit Authority’s RPM Phase One project, initiated in 2017 with a $2.1 billion budget and $1.1 billion from the FTA, is focused on upgrading the Red and Purple Lines between Belmont and Howard. This project involves track reconstruction, signal system upgrades including a PTC solution, and station improvements, with the aim of enhancing accessibility, reliability, and capacity.

Chicago Transit Authority (CTA)

The Chicago Transit Authority (CTA) is the public transit agency serving the city of Chicago, Illinois, and some of its surrounding suburbs. It operates the ‘L’ train system, as well as bus services, providing public transportation to millions of riders annually.

Federal Transit Administration (FTA)

The Federal Transit Administration (FTA) is an agency within the U.S. Department of Transportation. Its mission is to assist in developing improved mass transportation systems for the nation’s communities.

Technology

Positive Train Control (PTC)

Positive Train Control (PTC) is a safety system designed to automatically stop a train before certain accidents occur, such as train-to-train collisions, derailments caused by excessive speed, and unauthorized incursions into work zones.

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