The Longdongzi Tunnel is a double tunnel, each tunnel is one-way traffic, the left tunnel length is 1070m, the right tunnel length is 1024m, and it passes through Longdongzi Mountain.
Longdongzi tunnel is a double tunnel with one-way traffic. The left tunnel is 1070m long and the right tunnel is 1024 m long, crossing longdongzi mountain<br>
Longdongzi tunnel has two tunnels, each with one-way traffic. The length of the left tunnel is 1070m and the length of the right tunnel is 1024 m, crossing Longdongzi Mountain