고령 보행자 교통사고 영향요인의 상호작용 효과 분석 : 보행환경개선사업과 보행자안전시설을 중심으로

초록

The safety of older pedestrians is becoming more important as the global population ages. The number of traffic accidents that involve older pedestrians in Korea is on the rise. In this study, we aim to analyze the factors affecting traffic accidents involving older pedestrians and the interaction effects of the determining factors, thus focusing on walking environment improvement projects and pedestrian safety facilities suitable for older adults. We used a negative binomial regression analysis with the 2019–2021 Traffic Accident Analysis System (TAAS) data. The results of the analysis suggest that pedestrian crashes involving older adults are highly associated with all physical environmental factors. Additionally, road network factors have a negative impact on traffic accidents involving older pedestrians. However, older pedestrian crashes are not associated with walking environment improvement project factors. Pedestrian safety facilities such as crosswalk and crosswalk sign show positive associations, while road markings have negative associations. On the other hand, when considering the interaction effects between the physical environmental factors and walking environment project factors and between physical environmental factors and pedestrian safety facility factors, they show negative associations. Thus, this study presents policy implications to promote a safe walking environment for older pedestrians.

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