The Union StationBus Terminal is part of GO Transit's facilities at Union Station in downtown Toronto, which is the hub for GO Transit's commuter rail service. The bus terminal opened in 2003 to replace the on-street facility in front of the railway station, relieving the traffic congestion on Front Street, and to accommodate GO buses moved from the Toronto Coach Terminal. The bus terminal is located on the east side of Bay Street, directly across the street from the railway terminal. An enclosed walkway above the street connects the bus terminal to the railway station concourse. There is also direct stairway access from the bus terminal to railway platforms 4 through 13 via the Bay East Teamway under the railway tracks. The site of the Union Station Bus Terminal was once occupied by a small passenger depot and more recently former CP Express & Transport building. Most of the old structure was demolished with a dock door retained and limestone fascia stored. The bus terminal sees an average of 13,600 daily weekday riders. The bus terminal will move to a new location in 2020, located underneath the south tower of CIBC Square, a new office development south of the railway corridor. When the existing bus terminal is vacated, the north tower of CIBC Square will then be built on the site.
Bus routes
One bus route, the Hamilton Express, serves this terminal in both directions throughout the day. Other routes are connected to the rail corridors, with no inbound bus service during the weekday AM peak hours or outbound bus services during the PM peak hours, when the relevant train services operate. Due to height restrictions on the approaches to the terminal, all buses plying these routes are single-decker buses or special low-height double-decker buses. ;Platform assignments
In 2014, Metrolinx announced plans to move the current terminal to the south tower of the then proposed Bay Park Centre, located to the south of the current location on the opposite side of the rail corridor. However, the complex did not secure a lead tenant until 2017, at which point the move date was changed to 2020. The new bus terminal will be housed in the south tower of CIBC Square, an complex of office towers and elevated park over the rail corridor. The new terminal will have twice the capacity - 14 bus bays - and will be able to accommodate GO's fleet of double-decker buses. The terminal will also be connected directly to Union Station and Scotiabank Arena via a pedestrian skybridge over Bay Street. The relocation of intercity bus service, such as Greyhound and Coach Canada, from the Toronto Coach Terminal to the new station is under negotiation. By mid 2020, the new bus terminal was complete, and being tested for public use. The new bus terminal is scheduled to be opened in 2020. When the existing bus terminal is vacated, the north tower of CIBC Square will be built on the site.
