315806 at what looks to be Ipswich with a Shenfield service.
British Rail Class 315 alternating current (AC) electric multiple units (EMU) were built by BREL at York works from 1980 to 1981. They were the fifth and final variety of British Rail's then-standard 1972 design for suburban EMUs, which eventually encompassed 755 vehicles and five Classes (Class 313/314/315/507/508). Like the Glasgow-based Class 314 units, they are only able to operate from the 25 kV overhead line. The fleet works inner-suburban services on the Great Eastern Main Line run by the train operating company National Express East Anglia out of London Liverpool Street.
Photo © and courtesy of Susan Beard
Picture added on 16 December 2011 at 23:17