Journal of the Korean Society of Hazard Mitigation (한국방재학회 논문집)

Korean Society of Hazard Mitigation (한국방재학회)
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Impact Condition of Safety Performance Evaluation for Longitudinal Barriers of SMART Highway

스마트하이웨이 종방향 방호울타리안전성능 평가를 위한 충돌조건

  • 김동성 (공주대학교 건설환경공학과) ;
  • 김기동 (공주대학교 건설환경공학과) ;
  • 고만기 (공주대학교 건설환경공학과) ;
  • 김광주 (대전광역시 주택정책과 도시개발담당)
  • Published : 2009.06.30
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Abstract

To minimze the degree of damage for the SMART highway's punctuality and safety after car-barrier collisions, the impact condition for longitudinal barriers of SMART highway was determined to be quite larger than the existing maximum impact condition. The impact condition consists of impact vehicles, impact velocities, and impact angles. To consider the occupant safety of passenger cars as much as possible, a small car with high risk during impact was selected as the impact vehicle for the evaluation of occupant risk. The impact velocity was determined to be 20% larger than the existing maximum impact velocity in order to include accident impact velocities as much as possible. The impact angle was determined to include most of expected accident impact angles. Computer simulations using various impact conditions were conducted for the existing domestic highest-performance medium and roadside barrier. How the suggested impact condition has an effect on the occupant safety was investigated. The existing domestic highest-performance medium and roadside barriers could not satisfy the suggested impact condition. New high-performance longitudinal barriers are required to minimize the degree of damage for the SMART highway's punctuality and safety after car-barrier collisions.

충돌사고시 스마트하이웨이의 정시성과 안전성의 손상정도를 최소화 하도록 스마트하이웨이의 종방향 방호울타리 충돌조건으로 기존의 충돌조건보다 상당히 상향된 충돌조건이 결정되었다. 충돌조건은 충돌차량, 충돌속도, 충돌각도로 구성된다. 가능한 많은 승용차의 탑승자 안전을 고려할 수 있도록 충돌시 피해가 크게 나타나는 작은 차량을 충돌차량으로 선정 하였다. 가능한 많은 사고 충돌속도를 포함하도록 기존의 충돌속도보다 20% 큰 충돌속도가 결정되었다. 충돌각도는 예상되는 사고 충돌각도를 거의 모두 포함하도록 결정되었다. 기존의 국내 최고성능등급의 종방향 방호울타리에 대하여 다양한 충돌조건을 적용한 시뮬레시션을 수행하고 그 결과를 분석하여 제시된 스마트하이웨이 충돌조건이 탑승자 안전에 미치는 영향을 파악하였다. 기존의 국내 최고성능등급의 종방향 방호울타리는 제시된 스마트하이웨이 충돌조건을 만족하지 못하였다. 충돌사고시 스마트하이웨이의 정시성과 안전성의 손상정도를 최소화 하기 위해서 새로운 고성능의 종방향 방호울타리가 필요하다고 판단된다.

Keywords

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