ATL’s Tunnel Expansion Gets Smart: Building the Future From Below

Hartsfield-Jackson Atlanta International Airport—one of the busiest in the world—undertook a major infrastructure enhancement with the Plane Train Tunnel West Extension. Given the risks associated with tunneling beneath an active airport and the critical importance of avoiding costly surprises, understanding the existing subsurface conditions was essential. Coda was brought on board to provide vital underground insights, helping mitigate potential conflicts and streamline the design process.

Transportation

Underground Coordination