Abstract: This invention relates to the design of marshalling yard with up-grade speed control system. The principal difference between this yard and the conventional marshalling yard with down-grade only profile is described hereunder. Unlike the already known yard in which many speed control devices are installed on a down-grade to consume excess energy of cuts, the yard in the invention has hump height designed by taking operating conditions of moderate runners as a base and is provided with at least one up-grade speed control unit consisting of one up-grade section and a necessary number of boosters and retarders on the down-grade profile. This up-grade control unit could convert excess energy of cuts into potential energy. The invention could raise hump operating capacity of marshalling yard at a considerably reduced cost.