From: cfmpublic@ns.sympatico.ca   
      
   On Fri, 13 Feb 2015 07:37:38 -0600, Robert Heller   
    wrote:   
      
   >At Thu, 12 Feb 2015 21:34:37 -0500 Michael Finfer    
   wrote:   
   >   
   >>   
   >> much snipped   
   >>   
   >> There was also a statement made that Metro-North is the only application   
   >> of under running third rail in North America.  That is not true.   
   >> Philadelphia's Market St. subway/elevated uses it as well.  There are no   
   >> grade crossings on that line, however.   
   >   
   >I think Metro-North might be stating that they are the only *surface running*   
   >under running third rail *with grade crossings*. The LIRR has *over* running   
   >third rail *with grade crossings*. All other third rail is either elevated or   
   >underground (subways) and none of the others have grade crossings (they are   
   >all grade separated). Other commuter rail is either diesel hauled or overhead   
   >electric.   
      
   The CTA has numerous grade crossings with overrunning BARE (no top   
   cover) third rail.  The are on the Pink (ex Douglass Park), Brown   
   (Ravenswood), Yellow (Skokie) and Purple (EVanston) lines.  The   
   ex-Southern Region in England has numerous grade crossings with   
   overrunning third rail.   
      
   Clark Morris   
   >   
   >>   
   >> Michael Finfer   
   >> Bridgewater, NJ   
   >>   
   >>   
      
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