 As a consequence, all maintenance of the rolling stock is undertaken within the small, self-contained Channel Tunnel rail network, with the major work carried out at Coquelles (which is a much larger facility), and minor work undertaken at Cheriton.When rolling stock does need to be taken to another British location, locomotives and carriages are transported by trucks, as was done with the refurbishment of the locomotives at Brush traction in 2010/2011.The Eurotunnel rail control centre is located within the Folkestone Terminal.