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Increasing the price of petrol is the best way to solve growing traffic and pollution problems. To what extent d do you agree or disagree? What other measures do you think might be effective? Throughout the recent decade, production of vehicles has been increased considerably and this breakthrough contributes to traffic congestion as well as cities' air pollution. Solving this problem needs to take more sophisticated actions than a simple rise in petrol price. It is undeniable that using private cars is one of the most noticeable causes of traffic jams which can be solved directly by government and to some extent d by altering society's culture. Public transportation infrastructure needs to be improved ing in terms of quality and quantity as well. Its quality can persuade people to prefer it willingly over their own car. Moreover, the quantity of buses or trains would make the public transport more reliable to count on it in cases like of being on‐time or pace of commuting. Nevertheless, fuel quality plays a substantial part in reducing air pollution drastically by decreasing poisonous contaminants such as lead and other microscopic particles. Standardizing petrol will have a dramatic effect on air pollution which not only does needs less capital and energy to implement/do, also provides clean air more easily and efficiently. Consequently, as stated above, the main reason of traffic and air pollution is not its price whether it is cheap or not. By controlling fuel quality precisely and also improving the public transportation system constantly as well as educating the society to use public transport more, subsequently(the suitable solution can be sought ) the problem will be puzzled out simply. Kaveh Gh.