Toronto subway connects with Toronto streetcar system
History
Timeline of openings
Line 1 Yonge–University
Canada's first subway, the Yonge subway, opened in 1954 with a length of 7.4 kilometres (4.6 mi). The line ran under or parallel to Yonge Street between Eglinton Avenue and Union station. It replaced the Yonge streetcar line, Canada's first streetcar line. In 1963, the line was extended northwards from Union station under University Avenue to Bloor Street, where it would later connect with the Bloor–Danforth subway (opened in 1966) at the double-deck St. George station. In 1974, the Yonge Street portion of the line was extended from Eglinton station north to Finch station. The Spadina segment of the line was constructed north from St. George station initially to Wilson station in 1978, and in 1996 to Downsview station, renamed Sheppard West in 2017. Part of the Spadina segment runs in the median of Allen Road – an expressway formerly known as the Spadina Expressway – and crosses over Highway 401 on overpasses. Six decades of extensions gave the line a U-shaped route running from its two northern terminals (Finch and Vaughan Metropolitan Centre stations) and looping on its southern end at Union station. The latest extension from Sheppard West to Vaughan opened on December 17, 2017, making the line 38.8 kilometres (24.1 mi) long, over five times its original length.Track
Lines 1, 2 and 4 – the heavy-rail lines – run on tracks built to the Toronto gauge of 4 ft 10+7⁄8 in (1,495 mm), the same gauge used on the Toronto streetcar system. According to rail historians John F. Bromley and Jack May, the reason that the Yonge subway was built to the streetcar gauge was that between 1954 and 1965, subway bogies were maintained at the Hillcrest Complex, where the streetcar gauge was used for shop tracks. The Davisville Carhouse was not equipped to perform such heavy maintenance, and the bogies would be loaded onto a specially built track trailer for shipment between Davisville and Hillcrest. This practice ceased with the opening of the shops at the Greenwood Yard in 1965.Line 3 Scarborough uses standard-gauge tracks, as the ICTS design for the line did not allow for the interchange of rail equipment between the subway system and Line 3. When its ICTS vehicles need anything more than basic service (which can be carried out at the McCowan Yard), they are carried by truck to the Greenwood Subway Yard.The Line 5 Eglinton and Line 6 Finch West LRT lines will be constructed with standard-gauge tracks. The projects are receiving a large part of their funding from the Ontario provincial transit authority Metrolinx and, to ensure a better price for purchasing vehicles, it wanted to have a degree of commonality with other similar projects within Ontario.