Box-Beam Terminals for Restricted Conditions

摘要

Seventeen full-scale crash tests were conducted to evaluate the performance of box-beam guiderail terminals designed for roadway situations where geometric restrictions preclude use of the standard terminal length and offset flare. A design was developed that provided good redirection close to the end of the terminal and eliminated snagging by departing vehicles. Good performance was achieved in end-on impacts with 1800-lb sedans at moderate speeds, but it was not possible to obtain complete compliance with NCHRP Report 230 suggested criteria for 60-mph end-on impacts.