Research conclusions：The operation convenience and engineering savings are of a contrariety in certain sense. The design concept of railway station yard should take the maximums of the operating conditions and traffic capacity as the first element for adjustment and integration of productivity. The allocation of passenger and freight traffic equipments shall take serving the local development as the goal. In the designs of terminal and regional station yard, the design concepts of "separating passenger and freight traffic into different stations or tracks" and "passenger train running on inside line and freight train running on outside line" should be followed. In any instance, the more attention should be paid to the safety of operations. In the specific engineering design, the design should be optimized according to the local circumstances to achieve the optimal project and operating effect.