Tie BasicsBasic information about the Engineered Wood Crosstie IndustryThe TieGuide ya esta disponible en español Producing and Inspecting Railroad Crossties (2004) Basic Tie Information: RTA Tie Defects Poster and Tree to Track Presentation The RTA TieID Uniform Marking System for Crossties (2004) Commonly Used Crosstie Species Engineering Principles Behind Tie Specifications: SelecTie III Modeling Tool |