From Tower City to just east of East 55th Street, the Blue and Green Lines share track with the Red Line for 2.6 miles (4.2 km) along a private right-of-way originally acquired in 1930 to bring intercity trains into Cleveland Union Terminal (the site of today's Tower City Center).

A complex of tunnels existed at this junction to provide means for the Blue and Green Line trains to switch from right to left side running from East 55th to Tower City, but right side running is now used throughout the system, and the tunnels have been closed.

The station-stops east of Shaker Square are adjacent to street intersections and most comprise merely concrete platforms with simple shelters.

When the Shaker Heights Rapid Transit was absorbed into the RTA, The Green line held the designation of 67A.

The Van Sweringen brothers purchased the land of what is now Shaker Heights in 1906 intending to create a planned suburban community.

They knew that the success of their plans depended upon the availability of streetcar service to downtown Cleveland, so they persuaded the Cleveland Railway to extend its Euclid Heights trolley line along Fairmount Boulevard from Cedar Road to Lee Road, which was completed by 1907.

With the opening of the connection from Coventry to Shaker Square on August 16, 1920,[3] the old line became a shuttle to Fairmount, and later closed on March 12, 1923.

Cleveland Union Terminal (CUT) opened in 1930, along with a new grade-separated right-of-way with side-by-side lines for steam railroads and interurban streetcars, including the CIRR.

The CIRR no longer needed to run on city streetcar tracks and the ramp to Broadway and East 34th Street was removed.

A further extension of the Shaker Boulevard line moved the eastern terminus to Green Road on November 1, 1936.

However, Shaker Heights lacked the money to undertake the work, and Fairmount Boulevard streetcar service soon ended.

It used much of the right-of-way and some of the catenary poles from the Van Sweringen's planned east-west interurban line adjacent to the NYC&StL tracks.

In 1980, RTA undertook a complete renovation of the Green Line, with new track, ballast, poles and overhead wiring.

To run on the renovated lines, a fleet of new LRVs were purchased from an Italian firm, Breda Costruzioni Ferroviarie, to replace the aging PCC cars.

The Blue and Green Lines use a fleet of 48 light rail vehicles (LRVs) manufactured by Breda Costruzioni Ferroviarie in 1980 and 1981.

[citation needed] Stations between East 55th and Shaker Square were not served by the Green Line until August 16, 1920.