Back when I worked for Our Crazy Uncle, a guy in my unit was squashed by a train whilst he was walking down the tracks. It happened at night;the train operator probably never saw the guy, and in fact stated as much.
It makes one wonder how a train could sneak up on a pedestrian, but it certainly appears that is exactly what happened.
We had a dance hall/saloon North of Ponca back in the day.
Train tracks run right past it and in to town. Folks that were too drunk to drive or got left without a ride would walk down the tracks to get back to town. Several of them either passed out on the tracks or stopped to take a nap. In any case, they were ran over by a train and killed.
South of Ponca is the Ponca Tribe right on the tracks. Several of their members have been killed over the years with the same scenario above.