China traffic & road construction
China traffic & road construction
15.56km, The tunnel from Baoji to Hanzhong is the longest two-way six-lane tunnel in the world. It compresses the journey of the past three hours to one hour. Opened in 2019. pic.twitter.com/QyOx9G9f4z
— Sharing Travel (@MyChinaTrip) October 8, 2021