Evaluation of the Guard Rail Energy Absorbing Terminal (G-R-E-A-T) Impact Attenuator

摘要

This short report evaluates as many aspects of the Guard Rail Energy Absorbing Terminal (G-R-E-A-T), a vehicle attenuator, as possible. The system was first installed on a particular bridge in September 1979 and was evaluated for three years. No impact occurred during that interval, so an evaluation of impact worthiness could not be assessed. However, installation and its resistance to weather are evaluated.