Examining Spatial Associations of Road Intersections, Traffic Accidents, and Health Facilities in Lagos, Nigeria

국문 초록 (Abstract)

아프리카 등 제3세계 국가와 같이 사회 인프라가 낮은 지역은 데이터 및 연구시설의 부족으로 증거기반(evidence-based) 교통안전 정책 마련에 어려움을 겪기가 쉽다. 특히 저개발 국가일수록 재정적어려움으로 인해 선진국보다 더 효율적인 방법을 사용하여 안전시설을 배치해야 하는데, 교통사고위치와 같은 중요데이터가 없는 경우가 많아 안전시설의 과학적 배치가 어려운 실정이다. 이 논문은저개발 국가를 위해, 교통안전 정책마련 시 도로의 교차점을 사고다발지역으로 가정하고 핫스팟분석(Hotspot analysis)을 통해 사고 위험성이 높은 지역을 유추한 후 교통안전시설 배치를 위한 방법을 제안하는 데 목적이 있다. 나이지리아의 라고스(Lagos) 주를 연구대상으로 계산한 결과 도로교차점과 사고 수가 통계적으로 상관관계가 높다는 사실 및 도시지역이 비도시 지역보다 사고의 수가많지만, 사고의 심각성(severity)은 낮다는 사실을 밝혀냈다. 이 논문에서 제안한 방법이 다른 아프리카 도시 및 지역에도 확대·적용되어 도로 안전 수준을 높이는 데 기여하길 바란다.

다국어 초록 (Multilingual Abstract)

The purpose of this study is to suggest a new method to estimate the potential hotspots of road traffic accidents (RTAs) in underdeveloped countries. Due to the lack of infrastructure and experiences, many underdeveloped countries have failed to prepare effective policies to reduce traffic accidents. Considering their fiscal constraints, it would be critical to allocate health and traffic safety facilities with evidence-based methods. This study suggests the method of using road intersections as potential high-risk areas of RTAs when no accurate data are available in underdeveloped countries. Using the data from Lagos State in Nigeria, RTA hotspots were identified based on road intersections and travel distances from the high-risk points to the nearest health facility were calculated. There was a strong spatial correlation between the number of road traffic accidents and road interactions (<0.001). It is also found that urban areas had more traffic accidents but crashes were less severe, compared to suburban areas. These results indicate a disproportional allocation of health facilities between urban and suburban areas in Lagos, Nigeria.

목차 (Table of Contents)

• Ⅰ. Introduction Ⅱ. Backgrounds Ⅲ. Methodology Ⅳ. Conclusion References

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