United Kingdom, May 30 -- Balfour Beatty VINCI SYSTRA has revealed the first section of platform to be installed for Britain's new high-speed railway. In the underground box at HS2's Old Oak Common station, engineers have begun installing the platform slabs which passengers will use when boarding or alighting high-speed trains in the future. Six platforms are being built at the super-hub station in West London for high-speed services. Each will be served by HS2's fleet of 400-metre trains. These are being built in advance of a further eight surface-level platforms for Great Western Mainline, Elizabeth Line and Heathrow Express services. All six high-speed platforms are being installed at the same time, with construction taking place from ei...