Wilson Yard

Wilson Yard, also known as the Wilson Complex, is the Toronto Transit Commission's largest maintenance and storage facility for subway trains and buses. It is located in the former district of North York on Transit Road, north of Wilson Avenue, between Wilson and Sheppard West stations. The site sits on a large tract of land that originally belonged to Downsview Airport, built in 1936. During World War II, the location served as a military facility of the Royal Canadian Air Force, before the federal government sold off parts of the property as surplus in the 1970s and it passed to the transit authority.

The facility was completed in 1976 and began operating in 1977. It covers an area of 24 hectares (about 59 acres) and includes a car house with nine indoor tracks, as well as outdoor storage tracks for subway Line 1 Yonge-University. Today the yard houses roughly half of the commission's entire subway fleet, including most of the modern Toronto Rocket trains as well as older vehicles that are no longer in service. There are also extensive bus facilities with a large garage, hoists, and washing bays, which are connected by their own bridge to the bus bays at Wilson Station.

Over the years, the infrastructure has been expanded several times to keep pace with rising ridership and new line segments. A northern access was built in 1996 for the new Sheppard West Station, while a tunnel for a northern extension was dug as early as 2010 but did not receive tracks and enter service until 2018. This extension made it possible to connect to the Toronto-York Spadina Subway Extension. Since then, trains taken out of service have exited to the south via Vaughan Metropolitan Centre, which eases traffic in the yard. In addition, a new training building with a simulator was constructed and automatic train control was introduced to improve safety and reduce delays.