The Disposal Track is a special type of minecart track from the Railcraft mod. This track is used to remove entities riding Minecarts. This track can only be placed above an air block; it can not be placed on top of a solid block. It could be considered best to put it between Suspended Tracks, though it is not required, because entities may get stuck in blocks easier otherwise. As soon as a Minecart ridden by an entity passes over this track, the entity will fall below the cart.