INVESTIGATION OF ACCIDENT BLACK SPOTS ON LATVIAN ROADS USING SCAN STATISTICS METHOD

摘要

Scan statistics is an instrument of research of statistical dynamics of the development of the object under investigation in space and time. Research is made of statistics of road accidents distributed in space and time in the territory of Latvia. Alongside with the Monte-Carlo method when calculating the p-value, it is possible to use the direct method of scan modelling, taking into consideration the empirical rules of distribution of road accidents on the highways of Latvia. In this case both parametric and non-parametric methods may be used to describe the distribution of road accidents in Latvia. The methodology of research of road accidents in space and time enables to detect the most dangerous places on the highways of Latvia, check the efficiency of the decisions taken to improve the quality of roads and allocate the resources of the socioeconomic system in a more rational way.