1. 
   AASHTO
   American Association of State Highway and Transportation Officials
   Found op http://www.pavement.com/glossary/A.html
   
   
2. 
   AASHTO
   American Association of Safety Highway Traffic Officials
   Found op http://www.youngco.com/young2.asp?ID=4&Type=3
   
   
3. 
   AASHTO
   American Association of State Highway and Transportation Officials
   Found op http://www.angelfire.com/biz/BuildingPathology/BldngPathGlsry.html
   
   
4. 
   AASHTO
   (American Association of State Highway and Transportation Officials)A regulatory organization which governs the design and specifications of highway bridges.
   Found op http://www.areforum.org/up/GeneralStructures/JOIST%20AND%20STRUCTURAL%20GLO
   
   

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