THE STUDY OF THE DYNAMICS OF TRAFFIC ACCIDENTS USING THE CONTROL CHARTS

The aim of this article is an attempt to use the control chart for the average to study the dynamics of traffic accidents in selected European countries. The study covered the three countries: Poland, Ukraine and Sweden for the period 1993-2008. The obtained results were compiled with the European average-annual number of accidents for 42 countries. The analysis confirmed that according to common opinion Sweden has the lowest average of accidents, while Ukraine oscillates around the European canon, which may be surprising, considering the fact that Ukraine is seen by many as a country with low and high culture of driving accidents. The analysis showed that the worst ranks shows Poland, which differs significantly from the European average in spite of the positive trend noticeable since 1997. It was also found that the liberalization of rules and increase the number of cars contributed negatively to the increase in the number of accidents (Ukraine), and exacerbation of traffic regulations had a positive impact on test feature (Poland). It should be emphasized that the website of the European Economic Commission, which the data were collected from has no information for subsequent periods. It is therefore difficult to determine whether the positive trend of Poland development remains at a similar level, and within the next four years, i.e. until 2012 it managed to get closer to the expected level in Europe. In the case of Ukraine the opposite trend can be observed, but again for the same reasons it is hard to determine whether the negative trend was prevented. It is also not possible to examine what impact on the development of the number of accidents in Poland and Ukraine had the organization of mass events such as Euro2012 and related with it multimillion-dollar expenditure on the improvement of road infrastructure.

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