Spurs are short-length rail road tracks used for train storage, customer/station services and loading/unloading operations.Spurs are of two main types; single ended and double ended. A single ended spur has only one terminal connected to the main line. It can be leading or trailing.
A leading point spur branches off in the forward direction and a trailing point spur branches off in the reverse direction. The latter is a better choice because it simplifies operations. A double ended spur has both ends connected to the main track.