The system-dynamic approach has been shown to be effective in the analysis of the large systems dynamics development with a large number of material, financial and information flows. The system-dynamic models allow taking into account the non-linear nature of the relationship between the elements of such systems and feedbacks. This paper presents the vehicle and landscaping impact on the air pollution problem solution results with the use of the system-dynamic modeling. The results of computational experiments, helping to assess the effectiveness of reducing anthropogenic pressure measures are presented. Obtained results have the practical interest for development of the ecological programs for the city development and the choice of methods to manage environmental safety. With the help of the model you can perform the measures effectiveness pre-assess to reduce the harmful effects of vehicles and to predict the consequences of decisions.