抄録
On two-lane roads without median strips, fatal high-speed head-on collisions often occur in confined spaces. While installation of median strips is permitted under the Road Construction Ordinance, such installations are limited due to high costs. Wire rope guardrail systems use thin posts, provide a buffering function and require minimal width. This study examines the possibility of introducing such wire rope guardrail systems to replace median strips on two-lane roads in Japan, by using test construction and collision tests to confirm performance, and by determining the applicability of the above ordinance, guard fence installation standards and other regulations.
