The aim of this Thesis is the comparative evaluation of the level of road safety among the EU countries and the correlation of road crashes with road safety performance indicators. The main database was the research project “Baseline Collection of Key Performance Indicators (KPIs) for road safety” with data collected in the period 2021 2022. Additionally, data were retrieved from the Eurostat and the EU CARE road crash
database. Clustering was performed in order to group countries based on road safety performance indicators as well as economic and vehicle fleet related indicators, which resulted in two groups of countries, the high and low performing countries. Three linear regression models were then developed. The first model takes into account all countries included in the study, while the other two models consider the groups of high and low performing countries respectively. The results show that an increase in the percentage of vehicles travelling within the speed limits on urban roads and of the percentage of seat belt use, as well as an increase in the proportion of new vehicles in the total fleet, are associated with a reduction in crash severity. Finally, it was observed that the relative impact of seat belt use rate and of the percentage of vehicles travelling within the speed limit on urban roads is greater in low performing countries compared to the high performing countries.
database. Clustering was performed in order to group countries based on road safety performance indicators as well as economic and vehicle fleet related indicators, which resulted in two groups of countries, the high and low performing countries. Three linear regression models were then developed. The first model takes into account all countries included in the study, while the other two models consider the groups of high and low performing countries respectively. The results show that an increase in the percentage of vehicles travelling within the speed limits on urban roads and of the percentage of seat belt use, as well as an increase in the proportion of new vehicles in the total fleet, are associated with a reduction in crash severity. Finally, it was observed that the relative impact of seat belt use rate and of the percentage of vehicles travelling within the speed limit on urban roads is greater in low performing countries compared to the high performing countries.
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