On Saturday, April 11, 2015 at 12:25:30 PM UTC-4, Adam H. Kerman wrote:   
      
   > I guess I don't understand what hancock's complaint is here. I mean,   
   > ballast regulators are computerized and the ballast is laid to the   
   > height specified within a narrow tolerance that doesn't account for   
   > changes in level, except when it's very very fresh.   
      
   At Princeton Jct, where the high platforms are about 20 years old, the   
   platform is now about 6" below the level of the train car.  At other stations   
   on _several carriers_, they had to put in step boxes to aid passengers in   
   boarding.  FWIW, Engineers have    
   told me that is due to increased ballast height added over the years.   
      
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