PURPOSES : This study aims to identify the thresholds at which various factors affecting traffic crashes lead to actual traffic crashes METHODS : To verify the thresholds, we created scenarios and ran simulations with a combination of factors that affect traffic crashes. Lateral offset and minimum TTC were used to evaluate whether an incident occurred. RESULTS : In the first scenario, the most significant factor affecting traffic crashes is curvature, and it was found that the smaller the curvature(200 meters or less), the greater the deviation from the lane. And in the second scenario, especially the passenger car scenario, no accidents occurred when the curvature was greater than 90 meters and the speed was 40 km/h or less. The smaller the curvature and the higher the speed, the more accidents occurred. Similarly, in the bus scenario, no accidents occurred when the curvature was 120 meters or more and the speed was 30 km/h or less. Also, accidents tended to occur when the curvature was smaller and the speed was higher. CONCLUSIONS : Through this study, we derived the thresholds of factors that influence traffic crashes. The results are expected to help design and operate roads in the future and contribute to reducing traffic crashes.

1. 서론
2. 선행연구 고찰
    2.1. 교통사고 원인 분류
    2.2. 교통사고 원인의 임계값 도출
    2.3. 연구의 차별성
3. 연구 방법론
    3.1. 요인별 사고발생 임계상황 검증 방법
    3.2. 시뮬레이션 및 시나리오 선정
    3.3. 평가 지표 선정
4. 시뮬레이션 결과
    4.1. 위험상황 대표 시나리오(CarMaker)
    4.2. 특정-상세 시나리오(MORAI Simulator)
5. 결론 및 향후 연구과제
    5.1. 결론
    5.2. 향후 연구과제
감사의 글

• 박준호(아주대학교 D.N.A.플러스융합학과 석사과정) | Park Joonho
• 임동현(차세대융합기술연구원 첨단교통체계연구실 연구원) | Lim Donghyun
• 김형주(정회원 · 차세대융합기술연구원 첨단교통체계연구실 연구실장) | Kim Hyungjoo
• 소재현(정회원 · 아주대학교 교통시스템공학과 조교수) | So Jaehyun (Assistant Professor Department of Transportation System Engineering, Ajou University, 206, World cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16499 Korea) 교신저자