基于排队论模型的小区道路开放对城市通行影响的研究

Study on the influence of urban road opening on urban traffic based on queuing theory

小区开放可以缓解城市交通拥堵的现象。为了研究小区开放对周边道路通行的影响,文章通过交通流NS元胞自动机规则得到小区开放后的单车道实际和最大车流量,通过实测得到双车道实际和最大车流量。通过单双车道实际车流量之比得到小区开放前后道路通行强度之比。用双车道的实际车流量、最大车流量和通行强度之比构建出排队论等待制模型,运用Lingo分别求出小区开放前和开放后的延误时间、排队长度。可以得到小区开放能使周边道路通行能力增强的结论。

Community opening can alleviate the phenomenon of urban traffic congestion. In order to study the influence of the opening of the district on the surrounding roads, this paper obtains the actual and maximum traffic volume of the single lane after the opening of the community by the traffic flow NS cellular automata, and obtains the actual and maximum traffic volume of the two lanes by the actual measurement. Through the ratio of actual traffic flow between single and double lanes, get the ratio of road traffic intensity before and after district opening. Based on the actual traffic volume of the two lanes, the ratio of the maximum traffic flow and the traffic intensity, the queuing theory is used to build the model, and Lingo is used to find the delay time and queuing length before and after the opening. Can get the opening of the district can make the surrounding road traffic capacity enhancement conclusion.