AN ANALYSIS OF TRAFFIC ACCIDENT RISKS ON RESIDENTIAL STREETS CONSIDERING THE VISIBILITY OF INTERSECTION

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  • 見通しを考慮した生活道路交差点における交通事故リスク要因分析

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<p>The accident risk on residential roads is higher than that of highways. Especially, the intersections on the residential roads are more dangerous because of the large number of accidents. Therefore, in order to identify the factors affecting the number of accidents per unit traffic volume (hereafter, "traffic accident risk") at the intersections, this study makes a factor analysis for the intersections in Matsuyama metropolitan area. Since there are a lot of intersections with blind corners, in addition to road structure etc. the visibility of the intersection is considered as a factor. Specifically, by combining probe data and traffic accident data, a multiple regression analysis is carried out, using the number of traffic accidents at the intersections in each area as the objective variable, and various factors including intersection visibility as explanatory variables. As a result, it is shown that the accident risk of the 4-way intersections increases where narrowed roads intersected and good and bad visible corners were mixed.</p>

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