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China has experienced rapid urbanization and associated urban heat island effects and air pollution.Optimizing ventilation environment could relieve these urban diseases.In this study,an urban ventilation corridor model was proposed to explore the impact of urban form and building height on urban ventilation environment.The paper primarily calculated the ventilation resistance coefficient of building height according to fluid mechanics,and then determined the minimum cost weighted path among the air inlets and the outlets in consideration of the direction and frequency of wind.