I lived in Biloxi, Mississippi for 10 years or so. A single railroad track ran through town that carried freight only. About once a year someone drove or walked in front of a train resulting in a fatality. I can almost understand complacency and a resulting fatality with double tracks. It is beyond my power of imagination to see how a person could accidently find themselves in front of a train with only a single track. Suicide I can accept although I don't understand it. There are numerous mental pathologes resulting from chemical imbalances so I can imagine such a pathology entering into a situation where someone walks into a train.