From: ahk@chinet.com   
      
   Peter Schleifer  wrote:   
   >On Wed, 13 May 2015 18:00:34 -0700 (PDT), hancock4@bbs.cpcn.com wrote:   
      
   >>Early reports say that the Amk train was going twice the speed limit.   
   >>Apparently, there is not speed control protection.   
      
   >>Would anyone know the state of speed control on the NEC?   
      
   >>FWIW, here is the wikip article.  It says speeds are enforced.   
      
   >>http://en.wikipedia.org/wiki/Advanced_Civil_Speed_Enforcement_System   
      
   >From that article:   
   >"It is installed on parts of Amtrak's Northeast Corridor between   
   >Washington and Boston.[2]"   
      
   >The key word here is "parts"   
      
   Others have stated that it's not yet installed north of Philadelphia.   
      
   >Both an Acela and a SEPTA train reported being hit by projectiles in   
   >that area in just before the derailment. That's being played down as a   
   >possible cause.   
      
   >http://www.philly.com/philly/news/20150514_SEPTA_train_hit_by_p   
   ojectile_before_Amtrak_crash.html   
      
   It's not "being played down as a possible cause." It's rejected. Why would   
   you even raise it? That couldn't possibly have caused the engineer to exceed   
   timetable speed by 57 mph.   
      
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