Securing and increasing the safety in road traffic makes high demands of quality on managing and planning the road safety work on all levels of regional responsibility. For this purpose it is necessary that the level of road safety and its development in the different regions of responsibility (cities and towns, districts, and counties) can be evaluated exactly and comparably and that it can be classified within the total development of the country. Since a comparison of different regions on the basis of absolute facts about the road accident situation does not provide a correct picture due to the different prerequisites and data, characteristics were worked out in order to make a comparable evaluation of the level of road safety and of the development of road safety in a region. These characteristics are NK - the level coefficient of road safety in a region (shortly: level coefficient) and NI - the level index of road safety in a region) shortly: level index). With the help of these characteristics the level and the development of road safety can be compared on all administrative levels, such as places, towns and cities, districts and counties. On this basis differences of level and development (deficiencies of safety) can be evaluated exactly causing a detailed analysis of reasons within the framework of work on road safety. (A)
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