CHICAGO (WLS) -- Chicago is celebrating the completion of nearly $4 million in railroad track improvements on the CTA Red Line that is nearly a century old.
The work is in preparation for the RPM, the Red and Purple Modernization program, which is expected to begin later this year.
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The project includes reconstructing the Lawrence, Argyle, Berwyn and Bryn Mawr stops into larger, more accessible stations.
The plan also includes building a rail bypass north of Belmont station to improve service reliability, increase train speeds ease overcrowding and provide additional train service capacity for projected future growth.
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A rail bypass will also be built to improve service on the Red, Purple and Brown lines.
The RPM is the largest CTA project in the agency's history.