Buchanan Street subway station is a station on the Glasgow Subway in Scotland. It serves the major shopping thoroughfare of Buchanan Street, and is one of two stations on the Subway that directly serve the city centre. Close to Buchanan Bus Station and providing interchange with Glasgow Queen Street railway station via a travelator, it is the busiest station o…Buchanan Street subway station is a station on the Glasgow Subway in Scotland. It serves the major shopping thoroughfare of Buchanan Street, and is one of two stations on the Subway that directly serve the city centre. Close to Buchanan Bus Station and providing interchange with Glasgow Queen Street railway station via a travelator, it is the busiest station on the Subway, with 2.54 million passengers in the 12 months ending 31 March 2005.