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Identification of motorcycle accidents hotspots in the Czech Republic and their conditional factors: The use of KDE+ and two-step cluster analysis
The Geographical Journal ( IF 3.384 ) Pub Date : 2022-05-02 , DOI: 10.1111/geoj.12446
Stanislav Kraft 1 , Miroslav Marada 2 , Jakub Petříček 2 , Vojtěch Blažek 1 , Tomáš Mrkvička 3
Affiliation  

In recent decades, there has been a significant increase in the number of newly registered motorcycles worldwide. However, there is not only an increase in the number of motorcycles in traffic but also an increase in the number of conflicts between motorcyclists and the surrounding environment. A relatively significant research gap can be identified in the relationship between spatial factors and motorcycle accident rates. This paper analyses the spatiotemporal patterns of motorcycle accidents and studies their underlying factors. The KDE+ method (an extension of the kernel density estimation method) is used to identify concentrations of motorcycle accident key hotspots. To study the underlying traffic accident determinants, a two-step cluster analysis is used. The analysis is based on the database of motorcycle accidents in the Czech Republic from 1 January 2016 to 31 December 2020. The paper achieves a few main findings. By applying the KDE+ method, the most dangerous sections of the road network in the Czech Republic were identified, where a significant accumulation of motorcycle accidents occur. Motorcycle accidents are highly seasonal. Motorcycle accidents tend to accumulate in the afternoon, especially during the summer months. Concerning the frequency of accidents and the collective risk index, urban traffic, that is the traffic density, is an important cause of motorcycle accidents, along with the winter period with rather unfavourable weather conditions, and especially the directional conditions—curves and intersections—are among the hazardous sections.

中文翻译:

捷克摩托车事故热点识别及其条件因素:KDE+的使用和两步聚类分析

近几十年来,全球新注册的摩托车数量显着增加。然而,不仅交通中的摩托车数量增加,而且摩托车手与周围环境之间的冲突也有所增加。在空间因素与摩托车事故率之间的关系中可以确定一个相对显着的研究差距。本文分析了摩托车事故的时空格局,并研究了其潜在因素。KDE+ 方法(核密度估计方法的扩展)用于识别摩托车事故关键热点的浓度。为了研究潜在的交通事故决定因素,使用了两步聚类分析。该分析基于捷克共和国 2016 年 1 月 1 日至 2020 年 12 月 31 日的摩托车事故数据库。本文取得了一些主要发现。通过应用 KDE+ 方法,确定了捷克共和国道路网络中最危险的路段,那里发生了大量的摩托车事故。摩托车事故具有很强的季节性。摩托车事故往往在下午累积,尤其是在夏季。从事故发生频率和综合风险指数来看,城市交通即交通密度是摩托车事故发生的重要原因,而冬季天气条件较为不利,尤其是弯道和交叉口等方向条件较为不利。危险区域之间。本文取得了一些主要发现。通过应用 KDE+ 方法,确定了捷克共和国道路网络中最危险的路段,那里发生了大量的摩托车事故。摩托车事故具有很强的季节性。摩托车事故往往在下午累积,尤其是在夏季。从事故发生频率和综合风险指数来看,城市交通即交通密度是摩托车事故发生的重要原因,而冬季天气条件较为不利,尤其是弯道和交叉口等方向条件较为不利。危险区域之间。本文取得了一些主要发现。通过应用 KDE+ 方法,确定了捷克共和国道路网络中最危险的路段,那里发生了大量的摩托车事故。摩托车事故具有很强的季节性。摩托车事故往往在下午累积,尤其是在夏季。从事故发生频率和综合风险指数来看,城市交通即交通密度是摩托车事故发生的重要原因,而冬季天气条件较为不利,尤其是弯道和交叉口等方向条件较为不利。危险区域之间。发生大量摩托车事故的地方。摩托车事故具有很强的季节性。摩托车事故往往在下午累积,尤其是在夏季。从事故发生频率和综合风险指数来看,城市交通即交通密度是摩托车事故发生的重要原因,而冬季天气条件较为不利,尤其是弯道和交叉口等方向条件较为不利。危险区域之间。发生大量摩托车事故的地方。摩托车事故具有很强的季节性。摩托车事故往往在下午累积,尤其是在夏季。从事故发生频率和综合风险指数来看,城市交通即交通密度是摩托车事故发生的重要原因,而冬季天气条件较为不利,尤其是弯道和交叉口等方向条件较为不利。危险区域之间。
更新日期:2022-05-02
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