Driving route: the whole journey is about 27.4km

Starting point: Youfang Bridge

1. Start from the starting point to the northeast, drive along Ningwu Avenue for 1.1km, and go straight into Fengtai South Road

2. Drive along Fengtai South Road for 4.6km, and turn right slightly to enter Saihongqiao. Go straight into Yingtian Street Elevated Road

4. Drive along Yingtian Street Elevated Road for 2.2km, cross Yuhua Road Overpass, turn right slightly in the direction of Inner Ring East Line/Xinzhuang Interchange/Nanjing South Station/Airport Expressway

5. Drive along Shuangqiaomen Interchange for 1.1km, cross Chenguang Interchange, turn right ahead and enter Inner Ring East Line

6. Drive along Inner Ring East Line for 1.5km.. Go straight into tongjimen tunnel

7. drive 98m along tongjimen tunnel and go straight into the east line of inner ring

8. drive 37m along the east line of inner ring, pass through zone b of Jincheng building on the right, go straight into Xi' anmen tunnel

9. drive 1.5km along Xi' anmen tunnel and go straight into the east line of inner ring

1. drive 15m along the east line of inner ring and pass through Longpan on the left. Go straight into Jiuhuashan Tunnel

11. Drive along Jiuhuashan Tunnel for 2.1km, turn right slightly in the direction of Xinzhuang Interchange

12. Drive along Jiuhuashan Tunnel for 34m, after crossing Xinzhuang Interchange for about 24m, go straight into the inner ring north line

13. Drive along the inner ring north line for 11m, cross Xinzhuang Interchange and go straight into the inner ring north line

. Enter Xuanwu Avenue

15. Drive along Xuanwu Avenue for 8.1km, go straight into Ningzhen Highway

16. Drive along Ningzhen Highway for 24m, go straight into Xuanwu Avenue

17. Drive along Xuanwu Avenue for 82m, turn around and enter Xuanwu Avenue

18. Drive along Xuanwu Avenue for 15m, turn right

19. Drive 4m.