title: Blacklisting specific roads from Google Maps/Mapquest?
body: <p>I'm looking to build a custom view of a Google Maps type of application for providing directions, but I need to blacklist specific roads or sections of roads.  I'm not talking just avoiding highways or Toll Roads.  I've been looking through the Google Maps and Mapquest APIs but haven't found anything of use yet.</p>
  
  <p>Initially I'm just looking to manually blacklist specific roads that I do not want to drive on, but eventually would like there to be some sort of automatic detection or suggestion.</p>
  
  <p>Is there built-in functionality to support blacklisting specific roads in Google Maps or Mapquest? Or is there any known way to hack it together?</p>