On Friday, February 13, 2015 at 11:45:38 PM UTC-5, Denis McMahon wrote:   
      
   > Third rail tends to be terminated either side of a grade crossing. This   
   > means that just past the grade crossing there is the start of a new   
   > length of third rail. It doesn't seem too far fetched to me that a   
   > vehicle hit by a train collides with the end of the third rail and lifts   
   > it off of whatever supports it is mounted on.   
      
   Except, AFAIK, such incidents (lifting third rail) have been extremely rare in   
   the NYC area in the last 100 years of third rail use.   
      
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