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Traffic management systems are used usually to try to reduce congestion and improve road safety. The main sources of pollution at European level are cars. In the present paper, it presents the effect of these traffic management systems on vehicles emissions and pollutions. It presented the most frequently types used by traffic management systems and assessment of their possible effects on vehicle emissions and consumption of fuel. In 1990, the number of local public transport journeys was 2.5 billion, of which 52%...