after a season at the National Sports Centre, Selhurst, relocated to the Copper Box for the 2013-14 BBL season. The Lee Valley Hockey Centre was born from a revamp of the Olympic Legacy Hockey Facility. The facility is the current ground of Wapping Hockey Club. The centre includes 2 state-of-the-art hockey pitches and is operated by the Lee Valley Regional Park Authority. Following the demolition of the original warm-up track after the end of the Olympics, a new six-lane facility, the London Marathon Community Track, was constructed on the south side of the Olympic Stadium, for use both as a community venue and as a new home for Newham and Essex Beagles Athletic Club following the 2017 World Championships. Football side Altis FC, members of the Amateur Football Combination, are based at the stadium. Concerts In January 2013, music concert promoter Live Nation won the right to stage shows at the stadium and in the surrounding park. The park hosted the music events in July 2013, but the stadium was not used. The former site of the Riverbank Arena was used to stage the Hard Rock Calling, Wireless and Electric Daisy Carnival festivals . The stadium has since hosted various concerts, including Guns N' Roses, AC/DC and Robbie Williams. In 2021, ABBA began construction of a purpose-built arena in the Olympic Park for a motion-capture hologram concert scheduled to take place in 2022. The announcement of the arena's construction and purpose took place during a YouTube livestream to announce their upcoming 2021 album Voyage. Transport Railway stations Stratford station is the main station in the area. Estimates showed Stratford to be the busiest railway station in the United Kingdom for the year ended 31 March 2021. It is the terminus of the London Underground Jubilee line from Stanmore, Wembley, the West End of London and Canary Wharf. London Underground Central line also serves the station with services from Epping, Loughton, Woodford, Hainault, West Ruislip, Ealing Broadway, Shepherd's Bush and the West End. The Stratford branch of the Docklands Light Railway (DLR) also terminates here with trains coming from Lewisham, Greenwich and Canary Wharf. The DLR Stratford International branch also runs through the station from Woolwich Arsenal, London City Airport, Beckton, ExCeL Centre at Custom House and Canning Town through to Stratford International. Stratford is also the terminus of the London Overground North London line with services from Richmond, Clapham Junction,