RTA Specifications and Visual Guide to Tie Defects 

Click Here for the RTA Tie Specification Booklet

Click Here for Bridge Timber Specifications

Click Here to order the pocket-sized RTA Tie Specification Booklet

The Visual Guide to Tie Defects is a visual supplement to the AREMA/RTA Tie Specifications booklet. This CD contains:

• The full text of the Specifications for Timber Crossties, which can be printed from the CD
• An introduction to tie grading
• An interactive guide that describes defects, provides photos that serve as examples and explanations of each example 
• A self-evaluation section with two tests that users can go through to test their knowledge of defects 
• A simulation of a tie grading station, making decisions in 6 seconds while viewing both sides and both ends of a tie using a mirror
• A glossary of technical terms and acronyms