From: jishnu@hpe.com   
      
   On 4/5/2016 8:49 PM, HAL wrote:   
   > In article <5613fd52-1293-497e-87ac-b517b14d425d@googlegroups.com>,   
   >  wrote:   
   >   
   >> n the previous very similar accident about 20 years ago, they   
   >> said MOW vehicles were purposely set up NOT to shunt track   
   >> circuits.  This was because such units didn't always shunt, so   
   >> it was felt it was best to assume they didn't.  Thus, such a vehicle   
   >> wouldn't trip the signals.   
   >>   
   >> Is this still true?   
   >   
   > Shunt cables are required if the foul is more than five minutes.   
   >   
      
   It might be worthwhile reading this very disturbing Wall Street Journal   
   article, if you can get past the subscriber pay wall:   
      
   http://www.wsj.com/articles/amtrak-crash-probe-indicates-basic-s   
   fety-measure-wasnt-deployed-1459885465   
      
   One way to get across the pay wall that may work is to google "Amtrak   
   Crash Probe Indicates Basic Safety Measure Wasn’t Deployed" and then   
   click on the WSJ article in what you get back from the search.   
      
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