From: gl4317@yahoo.com   
      
   In article   
   <20140622-030400.308.0@Calvin-Henry-Cotnam.free.teranews.com>,   
    Calvin Henry-Cotnam  wrote:   
      
   > They use an interlocked wiring system called a railway/tramway square.   
   > Some photos appear at:   
   >   
   >   http://lrt.daxack.ca/Cities/Melbourne/index.html#LevelCrossings   
      
      
   That "hook turns" thing they do at the bottom of the page is interesting   
   as well.  There certainly seem to be some places in the USA where that   
   would be useful.   
      
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