The runway that Tmbstory is seeking ran about the 03/21 direction, it was at the 03 end that the DC-3 hit the train. There was the runway and adjacent taxiway. The taxiway went up and down a rise as it crossed the railway line and the runway was level. The Stratocruisers of Pan Am had a tail down attitude and would have scraped the aft fuselage if they attempted to cross the railway line via the taxiway, so they would do a backtrack down the runway instead.