Guidelines for Placement of Longitudinal Barriers on Slopes. Volume 3. Guidelines

摘要

The research was undertaken to investigate longitudinal barrier impact performance when placed on nonlevel terrain. Tasks performed in the study included (a) a determination of typical conditions for which longitudinal barriers are placed on nonlevel terrain; (b) an evaluation of the impact behavior of widely used barrier systems when placed on nonlevel terrain; and (c) the development of guidelines for selection and placement of barriers on nonlevel terrain. The volume describes the development and application of guidelines for placement of longitudinal barriers on nonlevel terrain. Data from full-scale crash tests were used to develop containment criteria for four widely used road-side barrier systems. This containment criteria and HVOSM simulations were then employed to develop barrier placement guidelines. Guidelines are presented for each of three different performance standards and are given in the form of 75 figures.