The map crack occurred in the concrete barrier and this crack is caused by the Alkali—Silica Reaction. As a result of the collision analysis according to the damage of the barrier, the barrier was found to be below the reference of structural performance when the crack height was 50cm or more. In the case, improvement is considered necessary.

• 류성진(한국도로공사 도로교통연구원 과제연구원, 공학석사) | Ryu, Seong Jin
• 심재원(한국도로공사 도로교통연구원 수석연구원, 공학박사) | Sim, Jae Woon
• 장태순(한국도로공사 도로교통연구원 책임연구원, 공학박사) | Chang, Tae Sun
• 이일근(한국도로공사 도로교통연구원 책임연구원, 공학박사) | Lee, Il-Keun Corresponding author