http://www.railjournal.com/index.php/main-line/west-coast-main-line-open-access-bid-rejected.html "West Coast Main Line open-access bid rejected"] International Railway Journal 8 January 2015 - "ORR rejects Great North Western's Leeds ambitions" Rail issue 766 21 January 2015 page 21 In 2010, it was proposed that services be operated by dual-mode (diesel + electric) Polaris trains, - capable of 140 mph .