From: nilknocgeo@earthlink.net   
      
    wrote in message   
   news:651bcd77-a0d9-4552-a0c3-51df4e25dbbc@googlegroups.com...   
   > On Sunday, November 16, 2014 1:01:43 AM UTC-5, Glen Labah wrote:   
   >   
   >> In the case of Sea-Tac it sits at the top of a ridge that is the only   
   >> non-water flat spot of significant size anywhere nearby.  Another runway   
   >> would mean a massive fill project to turn a valley or two into flat   
   >> areas.   
   >   
   > Many airports across the country face similar constraints.   
      
   It does not matter how many airports are expanded, the air carriers are   
   going to keep all the slots filled by using smaller planes.  If the large   
   planes were used as originally intended, the so-called cruch would never   
   have happened.  The hub and spoke system also wastes resources.   
      
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