U.S. Army Reserve Pvt. Alexis Colin, a railway operations student with the Maritime Intermodal Training Department, signals to the driver that the track is clear at Fort Eustis, Va., Oct. 30, 2015. When operating the train, the students rotated conductor duties including coupling train cars and surveying the area for hazards. (U.S. Air Force photo by Staff Sgt. Natasha Stannard)