give the engineer enough time to stop that kind of an accident from happening but it is supposed to give information to the train. for example, if two trains are on the same track and they re headed on a collision course or one is not moving ahead fast enough, that s the kind of thing that positive train control can tell the engineer. if there s a work car on the track, a train car working on the track. okay. mary and matthew on the phone, let s go over some of this information here. shortly after 9:30, right around 9:30 they got the call saying there was an issue and once they got there they said they had six overturned train cars that they saw. the train was en route from washington d.c. to new york. five people confirmed dead. 243 people on board the train and that includes five amtrak