This case involves several children who died when a train collided with a school bus. The normal school bus route did not involve crossing over the railroad tracks, but construction on a main municipal road caused traffic to be re-routed over the railroad tracks. The bus had made it part of the way through the crossing when it was struck by the train. As a result of the collision, 3 children died and 2 suffered traumatic brain injuries. The train engineer had blown the whistle at the quarter post but the train’s brakes were never engaged because the engineer believed the bus driver would clear the tracks. The train struck the school bus while traveling below the normal speed limit for that area. An expert in safety engineering with specific experience in train operations was sought to determine if the train engineer deviated from standard procedure.