From: jock@soccer.com   
      
   On Sat, 18 Jun 2016 15:17:26 -0500, Larry Sheldon   
    wrote:   
      
   >On 6/18/2016 10:39, John W Gintell wrote:   
   >   
   >> With current technology all grade crossings could be properly guarded   
   >> with gates that wouldn't go down if there was a vehicle in it and would   
   >> start going down at the right time based upon the train speed. This   
   >> could be linked to the train controls as well so a train could be   
   >> stopped in time in case there is a vehicle on the tracks.   
   >>   
   >> This would eliminate accidents and allow trains to travel faster.   
   >   
   >This would NOT eliminate "accidents"*!  It would reduce those that occur   
   >when everything works exactly right.   
      
   Such as vehicles plunging over/breaking through bridge parapets onto   
   railway tracks... as in the UK on occasion.   
      
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