2. On May 21, 2011, at approximately 11:40 a.m., an eastbound CSX Transportation, Inc. (CSX) road switcher collided with the rear of a standing grain train at Low Moor, Virginia. The switcher was traveling at a recorded speed of 13 mph at the time of the collision. FRA's preliminary investigation indicates that the train had passed an intermediate automatic block signal indicating that the train was to proceed at restricted speed. However, the train crew was not prepared to stop their train within one-half the range of vision of the standing train. The collision resulted in the derailment of the lead engine of the road switcher, and the rear car of the grain train.