NEW investment has been announced by GB Railfreight, which is planning to build more intermodal sidings at Peterborough with Balfour Beatty and Network Rail. At the same time it is making progress with a new control room, three classrooms, a board room and staff welfare rooms at Peterborough as the result of a £3 million scheme which was announced earlier this year. The Up Yard at March has also been upgraded over the past few months, where a wagon maintenance and stabling depot has been built. This means that wagons needing attention no longer need to be hauled empty to the GB Railfreight site at Doncaster.