Toronto subway

Toronto subway
Toronto subway
	A Toronto Rocket train at Museum station
	A Flexity Freedom train at Eglinton station
Overview
Owner	Toronto Transit Commission (Lines 1, 2 and 4); Metrolinx (Lines 5 and 6);
Area served	Greater Toronto
Locale	Toronto, Ontario; Vaughan, Ontario;
Transit type	Rapid transit
Number of lines	5 (plus 1 under construction)
Number of stations	109 (plus 26 under construction)
Daily ridership	1,079,700 (weekdays, Q4 2025)
Annual ridership	331,789,000 (2025)
Operation
Began operation	March 30, 1954
Operator(s)	Toronto Transit Commission
Number of vehicles	830 heavy rail cars; 66 work cars;
Train length	6 cars (Lines 1 and 2); 4 cars (Line 4); 2 cars (Line 5); 1 car (Line 6);
Headway	2 min 30 s – 5 min (Line 1); 2 min 20 s – 6 min (Line 2); 5 min 30 s (Line 4); 4 min 4 s – 12 min 40 s (Line 5); 6 min 32 s – 12 min 15 s (Line 6);
Technical
System length	100.1 km (62.2 mi); (33.2 km (20.6 mi) under construction)
Track gauge	1,495 mm (4 ft 10+7⁄8 in) Toronto gauge (Lines 1, 2 and 4); 1,435 mm (4 ft 8+1⁄2 in) standard gauge (Lines 5 and 6);
Electrification	Third rail, 600 V DC (Lines 1, 2 and 4); Overhead line, 750 V DC (Lines 5 and 6);
System map
System map
Key

The Toronto subway is a rapid transit system serving Toronto and the neighbouring city of Vaughan in Ontario, Canada. It is operated by the Toronto Transit Commission (TTC), an agency of the City of Toronto. The system is a rail network consisting of five lines: Line 1 Yonge–University, Line 2 Bloor–Danforth, Line 4 Sheppard, Line 5 Eglinton, and Line 6 Finch West.

In 1954, the TTC opened Canada's first underground rail line, then known as the "Yonge subway" and now part of Line 1, under Yonge Street between Union Station and Eglinton Avenue with 12 stations. As of 2026, the network encompasses 109 stations and 99.4 kilometres (61.8 mi) of route. In 2025, the system had a ridership of 331,789,000, or about 1,079,700 per weekday as of the fourth quarter of 2025, making it the busiest rapid transit system in Canada in terms of daily ridership. As of February 2026, there are 21 stations under construction as part of one new line (the Ontario Line) and two extensions to existing lines.