The article presents the general characteristics of road transport safety in Poland over the years 2009-2019. The key objective of this study was to investigate the main factors of road accidents in Poland. Up till now, the number of road accidents has been analysed in detail on the basis of data on collisions from rear, side and frontal perspective. Moreover, in the article, statistics regarding the number of perpetrators of accidents by gender and age are summarized, as well as dynamics aspects of changes related to new passenger vehicles and trucks in Poland in 2009-2019 are indicated. As a result, the intensity of rear collisions rather than frontal collisions is apparent. Hence, an inconspicuous rear collision by not braking a speeding vehicle carries a risk of the upper cervical spine.

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A vehicle’s longitudinal acceleration is one the parameters that characterize a vehicle’s motion dynamics and used, among others, to assess the comfort of public bus passengers. Rapid acceleration and braking performed by urban bus drivers can be deemed by passengers as uncomfortable and dangerous in some situations, especially for standing passengers. This paper presents an analysis of a public bus’s longitudinal acceleration recorded during extreme acceleration and braking attempts. The experimental tests were conducted on dry and wet asphalt and concrete surfaces. The test results allow for the statement that lateral acceleration depends largely on the road’s surface and its type. The maximum longitudinal acceleration values during rapid acceleration, depending on the surface, are within the narrow range of 2.18-2.81 m/s2. During braking, a public bus’s minimum longitudinal acceleration was within the range of -5.58÷-8.54 m/s2.

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The development of electromobility in Poland and the whole world is an inevitable process. Every year, electric vehicles and vehicles powered by renewable fuels become more and more popular. It should be noted that the development of infrastructure for electric vehicles and the pursued environmental policy with the related subsidies for the purchase of electric vehicles are an important aspect encouraging the purchase of this type of vehicle. The article presents a comparison of the popularity of vehicles powered by renewable energy sources in Poland and other European Union countries, as well as the characteristics of the most common alternative fuels. Its main objective is to specify the importance of passenger cars with alternative drive sources across the selected EU countries.