With the great prosperity of national economy, there has been a dramatic rise of vehicles\non city road, which makes increasing pressure of road transportation. Currently,\nmany countries are confronting the severe situation of traffic jam in different\ndegrees. Nevertheless, there are many triggers contributing to this congestion, one of\nwhich is the blocking of residential quarters towards vital traffic line. Therefore, it is\nextremely necessary to study whether the opening of residential quarters can improve\nthe road capacity of the entire city and remit the traffic pressure. Our paper is\nbased on graph theory, density theory and random utility theory. First of all, we\ndemonstrate a mathematical model of road traffic. Secondly, we explore the influence\nof residential quarters opening on urban traffic, taking three factors into account\nlisted as road traffic capacity, road network density and network average running\ntime. On the basis of above contents, the impact analysis of vehicle traffic caused by\npedestrians is added afterwards. Finally, our paper takes three different types of residential\nareas into account as an example to empirically analyze the tangible impact of\nthe opening, and finally come to the benefit of the traffic system after the opening.
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