InTrans / Aug 14, 2018

Summary Report on Selected Guardrails

This report summarizes the crash test results as well as the construction, maintenance, and accident experience observed for three types of guardrails: the modified South Dakota 3-cable guardrail, the modified Minnesota 3-cable guardrail and the modified thrie beam guardrail. The development of these systems is summarized and the basic design principals are explained. Where it was available, construction, cost, and accident data is presented from states that have used these systems.