This event happens under the influence of the Mercury
square Neptune aspect. When I worked for the RR,
always got nervous reporting for duty with any
adverse aspects with Mercury. A train derailing into
another train takes "a celestial aspect" to make
that possible.
http://www.nbcnewyork.com/news/local/Metro-North-Trains-Collide-Bridgeport-Connecticut-Several-People-Hurt-207944571.html
If you are in a horror movie, you make bad decisions, its what you do.