George, read the last paragraph about the train, which also had just left a station, that went 2 miles w/o apparently realizing s/he was on the wrong tracks. So, yes, it's possible.I don't know the geography of the area, and your scenario makes sense. However, from what NTSB just said, the train had stopped at a station 11 minutes before the accident. The engineer was clearly situationally aware enough to stop and depart from the station - would it be that easy to get disoriented that quickly?This is beginning to sound like a gross lack of situational awareness by the engineer. In english, the engineer may have lost track of where he or she was. If he mistook the 2nd Street curve at MP 81 (prior to the accident scene) for the second Frankford Junction curve at MP 84, he may have thought he had cleared the speed-restricted area and was entering the 110mph territory. The two curves are similar in geometry, and it was night. If that happened, he may have accelerated off the MP 81 curve to nearly 110mph only have Frankford Junction appear by surprise three miles later. I can't think of another scenario which would have a train come into Frankford Junction at over 100mph other than the engineer thinking he was in 110mph territory.
Impossible? I would have thought it was impossible for a trained NEC crew to take a train with passengers up the wrong railroad for two miles, and then upon reaching the end of the track, call the dispatcher to say they were lost. It happened.