To the disappointment of rival bidders Arriva, Keolis and National Express, the eight year concession to run Crossrail, the £15 billion project that will provide trains in an east-west link across London, with links to south London as well, has been granted to MTR. Short for Mass Transit Railway this is a company that operates nine urban lines in Hong Kong, and already runs London's Overground metro service in conjunction with Arriva.