The traction machine adopts worm gear reduction drive. The worm is made of tin bronze material, thus the drive owning the good characteristics of stability and low noise; the running track system adopts high rigidity section steel with high dimensional precision and good wear-resisting property; Automatic display device for running status and faults could ensure a more convenient and faster maintenance; “slim” type narrow handrail is easier to be hold by passengers, making the riding more comfortable and safe.