On Sunday, April 12, 2015 at 11:14:52 PM UTC-4, jimmyg...@gmail.com wrote:   
      
   > Also, are there any railroads that use low platforms and traps, and don't   
   have an employee stationed at every boarding door?   
      
   On SEPTA, on the older cars, the doors are at the car end.  Thus, a crewman   
   can watch a pair of doors of two cars.   
      
   On the new SL5 cars, the doors are quarter point, with automatic traps.  A   
   crewman is not near every opened door.   
      
      
   As mentioned, on NJT, MNRR, and LIRR, they have mostly high platforms, but   
   still use a lot of crew.  Long trains are run.  NJT tried reducing crew sizes,   
   but after some incidents realized some crew is necessary on long trains.   
      
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