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시뮬레이션 기반 혼재상황 도로안전성 평가방법의 실도로 자율주행 데이터 적용성 분석 연구 KCI 등재
Applicability of Simulation-Based Road Safety Evaluation Method for Mixed Traffic Conditions Using Real-World Autonomous Driving Data
- 언어KOR
- URLhttps://db.koreascholar.com/Article/Detail/453297
pp.111-126
The purpose of this study is to verify the applicability of a simulation-based road safety evaluation method for mixed-traffic environments using real-world autonomous driving data, and to propose directions for methodological improvement. Technical issues associated with existing simulation-based methodologies include data structure, trajectory connection, segment matching, sample size imbalance, and the definition of reference segments. Analysis data were constructed for 194 road segments using the Lyft Level 5 dataset, and evaluation metrics capturing longitudinal and lateral behaviors and vehicle interactions were derived. Safety Penalty (SP) values were computed for each metric and segment-level relative risk was assessed using an integrated risk score (IRS). Entropy-based weights reflecting the information content of SP distributions were applied and compared using an equal-weighting approach. Based on the equally weighted IRS, high-risk sections were primarily found near intersections, curves, and access points where deceleration, steering changes, and variations in vehicle spacing were prominent. Although applying entropy weights resulted in some changes in the rankings, the relative risk levels of the major high-risk sections were generally maintained. This study identified key issues in the process of applying road safety evaluations using real-world autonomous driving data, including data processing, indicator composition, relative evaluation limitations based on reference sections, and IRS calculation process. Furthermore, considering that IRS is a relative risk indicator rather than an absolute crash risk, this study suggests that additional validation through linkage with traffic crash data is necessary in the future.
1. 서론
2. 기존문헌 고찰
2.1. 시뮬레이션 기반 AV 도로안전성 평가 연구
2.2. 실도로 자료 기반 AV 도로안전성 평가 연구
2.3. AV 도로안전성 평가방법론 연구
2.4. 기존 연구와의 차별성
3. 실도로 적용 시 단계별 이슈사항 및 대응방안
3.1. 시뮬레이션 기반 AV 도로안전성 평가방법론
3.2. 데이터 수집 및 처리 단계
3.3. 평가지표 선정 단계
3.4. REB 적용 단계
3.5. IRS 산출 단계
4. 실도로 자료 기반 AV 도로안전성 평가방법론적용 결과
4.1. 분석자료 및 도로구간 구축 결과
4.2. 평가지표 산출 결과
4.3. 엔트로피 기반 가중치 산출 결과
4.4. IRS 산출 결과
4.5. IRS 기반 위험구간 도출 결과
5. 결론
REFERENCES
