This testing facility, which is located at the DLR Institute of Aerodynamics and Flow Technology in Göttingen, consists of the Tunnel Simulation Facility (TSG) itself and the Crosswind Test Facility (SWG). Together, they form a one-of-a-kind centre for studying stationary and transient aerodynamics, such as the effects that occur when trains enter tunnels. The effect of crosswinds and sudden gusts on moving vehicles can be analysed with the track’s crosswind generator, and the facility also allows the aerodynamically-induced loads on objects close to the track to be studied as vehicles pass.