A constituent has asked me to raise this question: There are 44 Class315 trains operated by TfL Rail. They will be phased out from May 2017 and replaced by new Crossrail trains. Yet TfL Rail has invested heavily in the Class315 fleet, giving them a refurbishment in mid-2015, improving maintenance such that TfL Rail has just won a "Maintenance team of the year" award for a great improvement in reliability. These trains are now to be given a full overhaul, yet in twelve months several will be surplus to requirements. Could some of these surplus Class315 4-car electric trains be redeployed to give overcrowding relief to Barking - Gospel Oak passengers?