Qiqiao pivot of riverine expressway interflows the line and crosses over the the main bridge of the Jingfu expressway adopted the steel case roof beam structure form.

So based on planning idea of bus routes graded, a new planning method of bus network graded and mutual connect underground and free bus transfer junction stations is researched.

Shihu Interchange in Southwest Section of Highway around Suzhou City is a key knob of Suzhou planning express-road network.