考虑交通噪声的交叉口信号设置临界流量研究

发布时间：2018-04-09 04:32

本文选题：交叉口交通噪声　切入点：信号设置依据　出处：《哈尔滨工业大学》2017年硕士论文

【摘要】：交叉口作为城市重要的交通节点,不仅决定性地影响着城市交通网络的运行效率,交叉口交通流产生的交通污染也不可忽视。交叉口合理地设置信号灯可以提高通行能力,缓解拥堵,改善交通安全,同时可减少交通环境污染。现有的交叉口信号设置依据研究中,未考虑环境影响方面的因素,因此本文在现有交叉口信号设置临界流量研究的基础上将交通噪声污染控制作为一个目标,应用双层规划模型来分析在环境噪声标准下,交叉口的信号灯设置的临界流量规律。分析了交叉口范围内的车流运行规律,从而选取合适的单车模型;研究不同流向车流的等效噪声轨迹与对应计算模型,重点给出左转和右转车流等效噪声的计算方法;修正了信号交叉口的噪声模型,引入“小周期”的概念,给出道路交通量大小接近临界流量的无信号交叉口的噪声预测方法。通过应用通行效率模型和无信号交叉口的噪声模型,构建了考虑噪声控制的临界流量双层模型。其中上层目标是满足交通噪声标准的交叉口的流量最大,下层目标是无控制方式交叉口相对于信号控制的通行效率增长率为正且最小(此时流量取临界值)。通过交通量来体现上层对下层的约束,从而获得临界流量取值与临界流量曲线。在对哈尔滨市的两个交叉口进行交通调查的基础上,对双层模型中的基础参数进行标定,然后应用模型求解获得考虑交通噪声限制下,双向两车道十字交叉口信号设置临界流量的变化规律,为同类型交叉口的信号灯设置提供了一定的理论参考,并验证了模型的可行性。噪声模型的研究可以提高噪声预测的准确性,为环境噪声的防治提供一定的理论依据;临界流量双层模型的构建可以为今后更合理地确定信号设置的依据提供参考。
[Abstract]:As an important urban traffic node, intersection not only has a decisive impact on the efficiency of urban traffic network, but also the traffic pollution caused by intersection traffic flow can not be ignored.The reasonable setting of signal lights at intersections can improve traffic capacity, alleviate congestion, improve traffic safety, and reduce traffic environment pollution at the same time.In the existing research on the signalling basis of intersections, the environmental impact factors are not considered. Therefore, the traffic noise pollution control is regarded as a goal in this paper based on the research on the critical flow setting of the existing intersection signals.The two-level programming model is used to analyze the critical flow law of the signallight setting at the intersection under the ambient noise standard.In this paper, the running law of traffic flow in intersection is analyzed, and the suitable single vehicle model is selected, the equivalent noise trajectory and corresponding calculation model of different flow direction are studied, and the calculation method of equivalent noise of left turn and right turn is given.The noise model of signalized intersections is modified, and the concept of "small period" is introduced, and the noise prediction method of unsignalized intersections with traffic volume close to critical flow is given.By using the traffic efficiency model and the noise model of unsignalized intersection, a two-layer critical flow model considering noise control is constructed.The upper level target is that the traffic flow is the largest at the intersection meeting the traffic noise standard, and the lower level goal is that the traffic efficiency growth rate of the uncontrolled intersection is positive and minimum relative to the signal control (at this time the critical value of the traffic flow is taken as the critical value).Through the traffic volume to reflect the upper layer on the lower layer constraints, thus obtaining the critical flow value and critical flow curve.Based on the traffic survey of two intersections in Harbin, the basic parameters in the two-layer model are calibrated, and then the model solution is used to obtain the traffic noise constraints.The change rule of the critical flow rate of the signal set at the two-way two-lane intersection provides a certain theoretical reference for the signal light setting of the same type intersection and verifies the feasibility of the model.The study of noise model can improve the accuracy of noise prediction and provide a certain theoretical basis for the prevention and control of environmental noise, and the construction of the two-layer model of critical flow can provide a reference for determining the signal setting more reasonably in the future.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491.54

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