Road–rail tunnels are
tunnels shared by road and rail lines, as an economy measure compared to constructing segregated tunnels. Road and rail may be provided with separate tubes.
Jiangyin Jingjiang Yangtze River Tunnel (under construction), S229 and Xicheng Intercity Rail Transit
Shanghai Yangtze River Parallel Tunnel, Shanghai Metro
Chongming line and 4-lane road.
Wuhan Yangtze River road-railway Tunnel (
Line 7 and Sanyang road-Qinyuan road), the first road-rail tunnel of Yangtze River built by tunnel-borning machine.[1]