T series (Toronto subway)
| Industry | Rail vehicle manufacturing |
|---|---|
| Headquarters | Thunder Bay, Ontario , Canada |
| Products | T series rapid transit vehicles for Toronto Transit Commission |
The T series, also referred to as the T-1, constitutes the fourth generation of rapid transit vehicles utilized by the Toronto Transit Commission (TTC) within Toronto's subway network. Commissioned in 1992 and constructed by Bombardier Transportation at their Thunder Bay, Ontario plant from 1995 through 2001, a total of 372 units were built.
Currently stationed at Greenwood Yard, the T-1 trains represent the more senior of the two heavy-rail fleets still active in Toronto. After the introduction of the newer Toronto Rocket trains, T-1s have been confined to operating solely as six-car formations on Line 2 Bloor–Danforth. Previously, they ran on Line 1 Yonge–University and formed four-car sets on Line 4 Sheppard until the final retirement of the H-series in 2014 and the transition to one-person train operation in 2016.
Each car features an aluminum body measuring 23 meters long and 3.14 meters wide, accommodating seating for 66 passengers with eight doors designed to facilitate rapid boarding. Their propulsion is provided by Adtranz GTO-VVVF systems delivering a combined output of 2,500 kW, enabling a top service speed of 75 km/h. Operational safety and efficiency are enhanced through regenerative braking paired with pneumatic brakes.
The T series marks a considerable investment in Toronto’s transit infrastructure, offering a robust and capacious solution that has served urban transportation needs effectively for close to thirty years.
Design advances
Introduced between 1995 and 2001, the T-1 cars became the core of the TTC’s subway fleet, supplanting older M1 and H-series trains dating back to the 1960s. While maintaining the married pair format from the H-series, they introduced significant technological enhancements such as a fore–aft joystick controller, integrated computer systems, and AC propulsion technology—transitioning away from earlier DC motor designs.
Additional design improvements involved wider doorways, flip-up seating to create wheelchair spaces highlighted by blue velour priority seats, and elimination of central stanchions. This made the T-1s the first fully wheelchair-accessible subway vehicles in TTC history. The interior color palette shifted from woodgrain panels to a combination of grey and dark red tones.
Lines serviced
- Yonge–University line (March 11, 1996 – May 27, 2015)
- Bloor–Danforth line (2000–present)
- Sheppard line (November 24, 2002 – October 8, 2016)
Future
Originally anticipated to remain in service until 2026, plans were revised in late 2019 when the TTC proposed mid-life refurbishments aimed at extending their operational lifespan by an additional ten years. These upgrades have included installation of LED lighting inside cars, side-mounted LED destination displays, external pre-boarding announcements, and ongoing CCTV system integration.
Although retrofitting T-1 trains with automatic train control (ATC) technology was considered to replace existing wayside signals on Lines 1 and 4—with intentions for Line 2 upgrades by 2030—the substantial retrofit expenses render this option improbable. Instead, TTC intends to phase out all T-1 units in favor of new trains compatible with ATC.
In October 2022, the TTC released a request for proposals seeking new vehicles similar to Toronto Rockets for Line 2 replacement; however, this procurement was canceled in June 2023 due to budget constraints. By November 2024, funding was secured for acquiring 55 replacement trains expected to begin delivery as early as 2030.
External links
- Detailed information on the T-series trains at Transit Toronto