The DLR train was specially fitted with a pantograph and powered by overhead line; it was driven manually rather than in automatic mode, which was to be normal practice when in operation on the Docklands system. The test track was closed to normal heavy rail traffic on demonstration days and, at night, the DLR train was stationed in a siding and the line was re-opened to freight trains.
The DLR train had a pantograph for overhead power; it was manually driven instead of automatically controlled, which would be standard practice during Docklands operations. The test track was closed to heavy rail traffic on demonstration days and, at night, the DLR train was parked in a siding while freight trains resumed service.