GO Transit infrastructure

GO Transit, the interregional public transit system in Southern Ontario, has a number of various road and rail vehicles. This includes 57 locomotives, 495 train coaches, and 401 buses.

The vast majority of GO Transit's active locomotive fleet consists of MP40PH-3C diesel-electric locomotives manufactured by MotivePower in Boise, Idaho. These replaced most of the older EMD F59PH over a 4-year transition program in early 2011. The new MP 40 locomotives are significantly more powerful with 4000 bhp vs the F59's 3000 bhp, allowing them to pull 12 coaches instead of 10.

The remaining F59s are due to be retired in 2018 in favor of a more powerful version of the MP 40, the MP54AC. As of 2017, one MP 40 unit, number 647, has been converted to the MP 54 specification and is in service; though GO Transit had originally planned to convert additional existing MP 40 locomotives, it has decided to purchase brand-new ones instead to replace its oldest models and modernize its fleet.

GO's railcar fleet is composed exclusively of Bombardier BiLevel Coaches manufactured by Bombardier Transportation or its predecessors in Thunder Bay, Ontario. In November 2011, the fleet comprised a total of 565 railcars, including cab car variants.

On June 1, 2012, Metrolinx contracted Bombardier to manufacture an additional 60 bilevel cars of an updated design incorporating crash energy management features and improved ergonomics. Deliveries of these models have been ongoing since 2015.

GO Transit currently operates two types of buses: single-decker highway coaches, constituting 75% of the active fleet; and commuter-type double-decker buses, constituting the remaining 25%. All vehicles run on diesel fuel.

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