The Scarborough Rapid Transit line was approved by the TTC in January 1977 to meet the considerable population growth anticipated in Scarborough. After Kennedy Station, there would be stations at Lawrence, Ellesmere, Midland, the Scarborough Town Centre, and McCowan. The line would run entirely on its own right of way, separated from street traffic, and for part of the way would be elevated above ground.

While the original plan called for light rail cars to be used on this route, the Province’s Urban Transportation Development Corporation suggested that its new Intermediate Capacity Transit System (ICTS) be used, and the plans were changed from light rail to the new system after construction had already commenced. The ICTS cars used a new method of power and propulsion, and was the first instance in North America of a computer-controlled automatic train operation.

In 1982, believing that the new technology required it to be identified as something other than a subway, the TTC held a naming contest for the new line. The winning suggestion, out of 5600 entries, was the Scarborough RT, submitted by Alvin Frost. In 2014 the line was renamed Line 3 Scarborough, as part of the new line numbering for all four TTC rapid transit lines. Use of the “Scarborough RT” name, and the “SRT” abbreviation, remain common.

 

Pamphlet with perspective drawing of elevated track. Includes new ICTS vehicle to be used.
Scarborough Rapid Transit – Kennedy Station to Town Centre – progress report no. 3 (recto)
October 1981
Fonds 16, Series 836, Sub-series 1, File 33, Item 3.
Pamphlet showing route map and Kennedy Station.
Scarborough Rapid Transit – Kennedy Station to Town Centre – progress report no. 3 (verso)
October 1981
Fonds 16, Series 836, Sub-series 1, File 33, Item 3.

 

Subway structure for LRT has been formed no finishing has been completed.
View looking east through Kennedy Station showing paver tiles installed on south platform. The top level of Kennedy Station had been built for light rail trains. It was altered for the new ICTS trains, which required higher platforms. Raising the platforms also required the roof to be raised, to provide enough clearance for customers on the platforms.
May 31, 1983
Fonds 16, Series 1604, File 4183, Item 830590-1
Crane and excavator preparing for excavation beside one story complex.
Excavation for the installation of the pedestrian underpass under the Canadian National Railway line and under the future Scarborough RT tracks, near Lawrence East Station
June 13, 1981
Fonds 16, Series 1604, File 136, Item 810643A-1.

 

View taken on road with cars looking towards station structure.
Superstructure construction at Midland Station, one of three elevated stations on the line
September 28, 1983
Fonds 16, Series 1604, File 5802, Item 830989-5.

 

Unfinished track bed.
Elevated track structure to Scarborough Town Centre, looking east from Midland Station
April 10, 1984
Fonds 16, Series 1253, File 864, Item 8.
Installation of rebar on trackbed.
Construction of elevated track structure heading to Scarborough Centre Station
April 10, 1984
Fonds 16, Series 1253, File 858, Item 8.

 

Man walking along elevated structure towards an unfinished 3-strorey building. Unfinished driveway and bus waiting area in background.
Construction at Scarborough Centre Station
April 10, 1984
Fonds 16, Series 1253, File 863, Item 8.

 

Poured concrete foundation looking toward elevated trackbed
Construction and architectural finishing for McCowan Station. The view looks west, and Scarborough Civic Centre and Scarborough Town Centre mall are both visible.
September 19, 1983
Fonds 16, Series 1604, File 4179, Item 830953-2.

 

Excavated yard with structure of carhouse erected in the background.
Looking east at the McCowan Yard trackbed under construction. The yard and a small car house were built to store and maintain the trains on the Scarborough RT.
September 8, 1983
Fonds 16, Series 1604, File 4182, Item 830923.
Carhouse with four doors to accommodate rolling stock in background with unfinished yard. in the foreground.
Construction of McCowan Yard and Carhouse to accommodate the ICTS vehicles for the Scarborough RT
December 19, 1983
Fonds 16, Series 1253, File 858, Item 8, Item 9.

 

Train entering empty station.
Scarborough RT train in Scarborough Town Centre Station. Two-car trains were operated at some times in the early years, but by the early 1990s increasing ridership required the operation of four-car trains at all times.
[ca. 1985]
Fonds 16, Series 1253, File 2481, Item 1.