Research conclusions：(1) In the design, the old conventions should not be fettered and all elements should be analyzed reasonably. The design should be of safety, money saving, science, reasonableness and full meeting the demands of the operation. (2) The through vehicle washing track is installed on right side or left side of the arrival and departure track in accordance with the topographic conditions and plane layout of the throat area. (3) If the vehicle test track suffers from the limitations of the topographic conditions and occupation of land, the curve can be laid out in any area, but the radius of curve, the length and super-elevation of the transition curve should meet the speed requirement of vehicle test track, and the large radius of curve should be used as much as possible.