> Preliminary information from the data recorder showed that, when the incident happened, the train was traveling at 78 mph (126 km/h),[4] nearly 50 mph (80 km/

> Preliminary information from the data recorder showed that, when the incident happened, the train was traveling at 78 mph (126 km/h),[4] nearly 50 mph (80 km/h) over the speed limit. In what sense relevant?