信號控制環(huán)形交叉口時空資源協(xié)同優(yōu)化方法研究
發(fā)布時間：2018-08-24 07:17
【摘要】：環(huán)形交叉口時空資源配置失衡導致其通行效率降低,因此論文以城市道路信號控制環(huán)形交叉口為研究對象,研究其時空資源的協(xié)同優(yōu)化方法,對進一步挖掘環(huán)形交叉口的通行效率、緩解城市交通擁堵具有理論意義和實用價值。論文首先界定了環(huán)形交叉口的物理空間范圍,提出了功能空間范圍的概念和空間長度計算方法；總結(jié)歸納了環(huán)形交叉口常用的信號控制方式,分析了不同信號控制方式的控制邏輯和交通運行規(guī)則；提出了環(huán)形交叉口時間資源要素和空間資源要素的篩選原則,提煉了時空要素的優(yōu)化重點；依托實地調(diào)研數(shù)據(jù),研究了信控環(huán)交的車輛到達規(guī)律、車輛離去特征和車速分布特性。借鑒協(xié)同理論闡述了時空資源協(xié)同優(yōu)化的內(nèi)涵,論證了該理論在信號控制環(huán)形交叉口時空資源優(yōu)化的適用性；提出以提高“通行效率”作為時空資源優(yōu)化的目標,細化了“效率”的目標子集,給出了對應(yīng)的評價指標以及相應(yīng)的優(yōu)化原則。研究了環(huán)形交叉口的交通沖突特性,運用停車線法和沖突點法,考慮環(huán)道容量的限制,分別給出了雙信號控制和單信號控制環(huán)形交叉口理論通行能力的計算方法；分析了信號控制交叉口車輛的延誤過程,運用車輛到達——離去曲線,考慮左轉(zhuǎn)車輛行程時間、第一和第二停車線左轉(zhuǎn)綠燈相位差等因素的不同,提出了雙信號控制和單信號控制環(huán)形交叉口停車延誤的計算方法。采用相位優(yōu)先次序圖設(shè)計了雙信號控制和單信號控制環(huán)形交叉口的相位相序,采用同步優(yōu)化策略,分別從配時參數(shù)、車道功能、通行能力三個方面將時空要素轉(zhuǎn)化為約束條件集合,以周期時長最小、延誤最小作為模型的目標函數(shù),將時空優(yōu)化問題轉(zhuǎn)化為非線性規(guī)劃問題進行求解。
[Abstract]:Due to the imbalance of space-time resources allocation in circular intersection, the traffic efficiency is reduced. Therefore, the paper studies the coordinated optimization method of space-time resources in urban road signal-controlled roundabout. It is of theoretical significance and practical value for further excavating the efficiency of circular intersection and alleviating urban traffic congestion. Firstly, the physical space range of annular intersection is defined, the concept of functional space range and the calculation method of space length are put forward, and the common signal control methods of circular intersection are summarized. This paper analyzes the control logic and traffic operation rules of different signal control methods, puts forward the screening principles of time and space resource elements of roundabout intersection, abstracts the key points of optimization of space-time elements, and relies on field investigation data. The vehicle arrival law, vehicle departure characteristics and speed distribution characteristics of signal-controlled loop intersection are studied. This paper expounds the connotation of cooperative optimization of space-time resources based on synergy theory, demonstrates the applicability of this theory in the optimization of space-time resources at signal-controlled intersections, and puts forward the goal of optimizing space-time resources by improving "traffic efficiency". The target subset of "efficiency" is refined, and the corresponding evaluation index and corresponding optimization principle are given. The traffic conflict characteristics of circular intersection are studied. The theoretical capacity calculation methods of double signal control and single signal control are given by using parking line method and conflict point method. In this paper, the process of vehicle delay at signal-controlled intersection is analyzed. By using the vehicle arrival departure curve, the different factors such as the travel time of the left-turn vehicle, the phase difference of the first and second parking lines, etc., are taken into account. Two signal control and one-signal control loop intersection parking delay calculation method is proposed. The phase sequence of double signal control and single signal control ring intersection is designed by using phase priority diagram. In the three aspects of capacity, the space-time element is transformed into a set of constraints, and the minimum period and delay are taken as the objective function of the model, and the space-time optimization problem is transformed into a nonlinear programming problem to be solved.
【學位授予單位】：東南大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U491.23
本文編號：2200032
[Abstract]:Due to the imbalance of space-time resources allocation in circular intersection, the traffic efficiency is reduced. Therefore, the paper studies the coordinated optimization method of space-time resources in urban road signal-controlled roundabout. It is of theoretical significance and practical value for further excavating the efficiency of circular intersection and alleviating urban traffic congestion. Firstly, the physical space range of annular intersection is defined, the concept of functional space range and the calculation method of space length are put forward, and the common signal control methods of circular intersection are summarized. This paper analyzes the control logic and traffic operation rules of different signal control methods, puts forward the screening principles of time and space resource elements of roundabout intersection, abstracts the key points of optimization of space-time elements, and relies on field investigation data. The vehicle arrival law, vehicle departure characteristics and speed distribution characteristics of signal-controlled loop intersection are studied. This paper expounds the connotation of cooperative optimization of space-time resources based on synergy theory, demonstrates the applicability of this theory in the optimization of space-time resources at signal-controlled intersections, and puts forward the goal of optimizing space-time resources by improving "traffic efficiency". The target subset of "efficiency" is refined, and the corresponding evaluation index and corresponding optimization principle are given. The traffic conflict characteristics of circular intersection are studied. The theoretical capacity calculation methods of double signal control and single signal control are given by using parking line method and conflict point method. In this paper, the process of vehicle delay at signal-controlled intersection is analyzed. By using the vehicle arrival departure curve, the different factors such as the travel time of the left-turn vehicle, the phase difference of the first and second parking lines, etc., are taken into account. Two signal control and one-signal control loop intersection parking delay calculation method is proposed. The phase sequence of double signal control and single signal control ring intersection is designed by using phase priority diagram. In the three aspects of capacity, the space-time element is transformed into a set of constraints, and the minimum period and delay are taken as the objective function of the model, and the space-time optimization problem is transformed into a nonlinear programming problem to be solved.
【學位授予單位】：東南大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：U491.23
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