claim: Camp Flog Gnaw is a convention.
evidence: Altrincham Interchange is a transport hub in Altrincham , Greater Manchester , England .. Altrincham. Altrincham. Greater Manchester. Greater Manchester. transport hub. transport hub. It consists of a bus station on Stamford Road , a Northern Rail-operated heavy rail station on the Mid-Cheshire Line , and a light rail stop which forms the terminus of Metrolink 's Altrincham Line .. Northern Rail. Northern Rail. Altrincham. Altrincham. Metrolink. Manchester Metrolink. bus station. bus station. heavy rail. heavy rail. Mid-Cheshire Line. Mid-Cheshire Line. light rail. light rail. Altrincham Line. Altrincham Line. The original heavy rail element of the station was opened by the Manchester , South Junction and Altrincham Railway as Altrincham and Bowdon railway station in April 1881 , changing to Altrincham railway station in May 1974 .. Altrincham. Altrincham. heavy rail. heavy rail. The Metrolink element opened in June 1992 .. Metrolink. Manchester Metrolink. The Interchange underwent a complete redevelopment , at a cost of # 19 million , starting in mid-July 2013 .. The new bus station opened officially on 7 December 2014 .. bus station. bus station