Driving route: the whole journey is about 28.5 kilometers. Starting point: Changsha Huanghua International Airport 1. Start from the starting point, drive north for 400 meters, and turn left slightly in the direction of S2 1/ Changzhu Expressway/Zhuzhou Xiangtan/Jiangxi (Pingxiang). 2. Drive along the ramp for 240 meters and go straight on the ramp. 3. Drive along the ramp for 80 meters, at 66th Street. Turn right to Changsha Avenue in the direction of S40/ Airport Expressway /S2 1/ Changzhu Expressway. 4. Drive along Changsha Avenue for 460m and go straight to the airport expressway. 5. Drive 40 meters along the airport expressway and go straight to the airport expressway. 6. Drive along the airport expressway for 4.4km, turn right slightly in the direction of Zhuzhou /S20/S2 1 and get on the ramp. 7. Go straight into Changsha Ring Expressway 8. Drive along Changsha Ring Expressway 5. 1km, and turn right slightly on ramp 9. Drive along the ramp 1.8km, and go straight into Changliu Expressway 10. Drive along Changliu Expressway for 8.2km and go straight into Changliu Expressway 160. Go straight into Sanyi Avenue 12. Drive along Sanyi Avenue for 6.4 kilometers, turn around and enter Sanyi Avenue 13. Drive along Sany Avenue and reach the destination: National University of Defense Technology (