From: michaelwares0@gmail.com   
      
   > ? It was never an IRT line. (How could smaller IRT cars serve the stations   
   > with platforms for wider BMT cars?) The Queensborough Plaza station was   
   > originally shared by both companies, but on different levels/sides of the   
   > structure. That capability was mostly dismantled a long time ago. On some   
   > early maps there's a sort of double line for Astoria, but that must have   
   > been some sort of financial arrangement, not anything about what trains   
   > served the line.   
      
   The Astoria and Corona (later Flushing) lines were a joint operation from   
   the early 1920s until 1949.  I.R.T. subway and el trains ran through on both   
   lines; B.M.T. subway trains terminated at the now-demolished north side of   
   Queensbourough Plaza, and passengers transferred to el-car shuttles.   
      
   In 1949 Flushing became IRT only, and the Astoria platforms were cut back, and   
   the line made BMT only.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)