|
Title |
Vehicular Impact Model and Installation Locations for a High Performance Median
|
|
Authors |
정유석(Yoseok Jeong) ; 이일근(Ilkeun Lee) ; 이재하(Jaeha Lee) ; 김우석(WooSeok Kim) |
|
DOI |
https://doi.org/10.11112/jksmi.2019.23.1.63 |
|
Keywords |
충돌하중모델 ; 충격도 ; 설치위치 ; 중앙분리대 Impact loading model ; Impact severity ; Locations ; Median Barrier |
|
Abstract |
The number of vehicle-to-barrier collisions has increased due to improved driving environments. In addition, it is reported that the number of accidents led to impact severity larger than current capacity of a median barrier has increased. It is required to develop a high performance median barrier in order to secure expressway safety. This paper aims at proposing impact loading model and locations for a high performance median barrier based on analysis of median-barrier-related accident history. The SB6 test level (Impact severity: 420 kJ, Mass: 25 ton, Impact speed: 80 km/h, Impact angle: 15°) was suggested for target impact severity based on statistical data analysis. The suitable locations also were proposed from investigation of driver behaviors for installation and rehabilitation of high performance median barrier.
|