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The subject of the research is the analysis of the impact of various factors on road safety of the transport of dangerous goods. The causes and circumstances of various types of road incidents involving vehicles transporting hazardous materials as well as technical states of vehicles has been analysed. The traffic incidents and their effects in period of 2014 - 2018 in Poland in three provinces have been analysed. Examinations on the technical conditions of vehicles adapted for the transport of dangerous goods in various age groups were carried out in the years 2007 - 2018. The results of road accidents usually depend on the types of vehicles and the collision geometry as well as the collision speed. Around 1,400 road incidents involving vehicles carrying dangerous goods have been recorded in Poland every year. Most of the accidents that have been analysed took place in the urban areas. Accidents involving vehicles carrying dangerous goods pose a risk not only for those participating in them, but also for the population and infrastructure of the neighbourhood. Most collisions were caused by errors of road users not related to the transport of dangerous goods. The analysis of traffic incidents in urban areas has shown that collisions occurred at road intersections of the same type. The results of the accidents depended mainly on the speed of crashing. Considering the threat arising from the type of cargo, due to speed limits resulting from traffic intensity, the results of accidents in urban areas were less severe compared to accidents in non-urban areas. The causes and effects of road collisions in non-urban areas were associated with the speed at which vehicles were moving and their technical conditions.

Keywords: Road transport, road safety, dangerous goods

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