OPSD 922.180 - Energy Attenuator, End Treatment Steel Beam Energy Attenuating Terminal, Sequential Kinking Terminal System with Wooden Posts, Installation
OPSD 922.181 - Energy Attenuator, End Treatment Steel Beam Energy Attenuating Terminal, Sequential Kinking,Terminal System with Steel Posts, Installation
National Council Highway Research Program
NCHRP 350 TL-3 - Recommended Procedures for the Safety Performance Evaluation of Terminals and Crash Cushions