Chicago Transit Authority (CTA) Ravenswood Connector Rehabilitation Project

Chicago Transit Authority (CTA) Ravenswood Connector Rehabilitation Project Overview

Chicago, IL

To help increase the number of trains able to traverse the track while reducing delays during rush hour commutes, GAI’s Train Controls Group is incorporating new signal-control microprocessors on the Chicago Transit Authority’s (CTA) Ravenswood Connector line—the elevated part of “L” between Armitage and the Loop currently used by the Brown and Purple Lines. The microprocessors are being placed into multiple bungalows and will interface with the existing relay logic control at the adjacent CTA location.

This design provides room for future expansion and upgrades to the signaling capabilities of the various locations. The first microprocessor, located inside the Cleveland Street bungalow, has been installed on the elevated structure as part of the Ravenswood Connector rehabilitation project. Microprocessors will also be installed inside the Willow and Illinois bungalows.

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