Queen subway line

The Queen Street subway line is a proposed subway line for the city of Toronto, Ontario, Canada. It was one of many subway lines planned for, but has yet to be built by the Toronto Transit Commission.
History.
1911 proposal.
It began with a streetcar subway line proposal by the Department of Railways and Bridges of the City of Toronto Engineers in 1911, but it was not until the 1940s that the line re-emerged.
Post-World War II plans.
The 1944 TTC Rapid Transit Proposals for a Queen Street route and a referendum on January 1, 1946, brought the Queen subway line back to life. The line called for an open-cut with right of way and built to the north of the existing Queen streetcar line.
The Yonge line was built first and subsequently, it was decided to build an east–west subway line along Bloor and Danforth Streets instead of Queen due to changes in traffic and population patterns.
The existing Queen Street streetcar line remains one of the longest and most heavily used, running double-length ALRV streetcars (one of only two lines that does so) at six-minute intervals. However, the volume of riders did not justify a subway line in the 1960s.
Stations.
A rough platform, partial station is all that remains of a station and the proposed Queen subway line with access from a door from the existing Queen station.
Stations on the proposed Queen line:
Proposed routes.
Later changes to the line would have extended the subway to the Humber Loop in the west and Eglinton-Don Mills to the north-east end:
The Queen route was not removed from plans until 1975, but a portion of Lower Queen station now contains an elevator shaft due to elevator construction in Queen station in the 1990s.
References.
Plans that reviewed and proposed the Queen line: