Evaluation items were deducted by based on literature materials to supplement the evaluation system of rock cut-slope in national road. Delphi survey of experts were conducted to review the final evaluation items. As a result of reviewing the significance through stepwise multiple linear regression, all of deducted items were statistically significant because these had lower P-value than 0.05. And It was confirmed that the items were selected appropriately as they had relatively similar levels of the weight.

• 석재욱(한국시설안전공단 시설안전연구소 선임연구원) | Suk, Jae Wook
• 이종건(한국시설안전공단 시설안전연구소 선임연구원) | Lee, Jong Gun 교신저자
• 김홍균(한국시설안전공단 시설안전연구소 선임연구원) | Kim Hong Kyoon
• 김용수(한국시설안전공단 시설안전연구소 수석연구원) | Kim, Yong Soo