The British Rail Class 334 is a suburban electric multiple unit built by Alstom in Birmingham. They are part of the Juniper family of trains along with Classes 458 and 460. They were built for SPT/ScotRail (when part of National Express Group) outer suburban services in Glasgow, UK. They later became part of First ScotRail/SPT fleet once they took over the franchise in 2004. Their introduction saw the withdrawal of the last of Glasgow's venerable Class 303 "Blue Train" sets which had been in service since 1960.