Some of the desirable characteristics of the "Merry-go-round" railway described in this article are found in the Tyne Dock-Consett iron ore traffic of the N.E.R. The ore is carried in high capacity wagons, run in trains of fixed formation. A triangle at the Consett works enables each train, complete with its locomotive, to be turned and sent back without any remarshalling after unloading to Tyne Dock. At the quayside, the wagons are mechanically loaded as a train and at Consett they run directly on to a gantry above unloading bunkers; they have air-operated bottom-discharge doors worked from the locomotive.