US Patent 7813846 System and method for railyard planning

A system and method for generating a computer-aided rail yard plan for the movement of plural railcars through a rail yard, the rail yard having tracks that are used as receiving tracks, classification tracks and departure tracks and the plural railcars arriving on inbound trains and departing on outbound trains, the plural railcars required to undergo a sequence of tasks to move through the rail yard, the yard plan providing (a) a schedule for receiving trains, (b) a schedule for inspecting cars on receiving tracks, (c) a schedule for humping cars from receiving tracks into classification tracks, (d) a schedule for pulling trains onto departure tracks, (e) a schedule for testing trains, and (f) a schedule for departing trains.