CNN  —  A Norfolk Southern conductor was killed Tuesday immediately after getting struck by a dump truck at a facility in Ohio, prompting a National Transportation Basic safety Board investigation of the railway’s safety culture because of to the “number and significance” of the latest accidents. The conductor, recognized as 46-calendar year-previous Louis Shuster, was fatally injured early Tuesday morning at the Cleveland-Cliffs Cleveland Functions residence, the railroad mentioned in a news launch. It is the third incident involving the railroad in the condition in just above a month. Shuster was struck when a dump truck carrying limestone collided with the front left aspect of the initially vehicle of the…