 The study investigated the possibility of links to Heathrow Airport and connections with Crossrail, the Great Western Main Line, and the Channel Tunnel Rail Link (HS1), as displayed in the map shown.On 11 March 2010 the HS2 report and supporting studies were published, together with the government's command paper on high-speed rail.The Conservative–Liberal Democrat coalition, on taking office in May 2010, undertook a review of HS2 plans inherited from the previous government.