GO Transit bus services in the context of "Union Station Bus Terminal"

GO Transit is a regional public transit system serving the Greater Toronto Area and the Greater Golden Horseshoe region of Ontario, Canada. With its hub at Union Station in Toronto, GO Transit's green-and-white trains and buses serve a population of more than seven million across an area over 11,000 square kilometres (4,200 sq mi), stretching from Kitchener in the west to Peterborough in the east, and from Barrie in the north to Niagara Falls in the south. In 2024, the system had a ridership of 71,827,500. GO Transit operates diesel-powered double-decker trains and coach buses, on routes that connect with all local and some long-distance inter-city transit services in its service area.

GO Transit began regular passenger service on May 23, 1967, as a part of the Ontario Ministry of Transportation. Since then, it has grown from a single train line to seven lines. GO Transit has been constituted in a variety of public-sector configurations. Today, it is an operating division of Metrolinx, a provincial Crown agency with overall responsibility for integrative transportation planning within the Greater Toronto and Hamilton Area and is projected to grow dramatically with electrification, increased frequency and new stations through the GO Expansion, which is scheduled to be completed in phases through 2025–2032.