Supersaturated traffic state trunk line one-way signal coordination design method and device
Supersaturated traffic state trunk line one-way signal coordination design method and device
- Neue Suche nach: WANG HAO
- Neue Suche nach: PENG XIANYUE
- Neue Suche nach: WANG HAO
- Neue Suche nach: PENG XIANYUE
The invention discloses a supersaturated traffic state trunk line one-way signal coordination design method and device. The method comprises the steps: obtaining geometrical parameters, traffic parameters and control parameters of a supersaturated traffic state trunk line target road section and traffic flow data of a time period needing to be optimized; taking the trunk line as a modeling object,constructing an optimization model taking maximization of the trunk line throughput as a target, and realizing maximization of the trunk line throughput by adjusting the green light duration; solvingthe model to obtain the trunk line straight going and branch line left-turn phase green light duration of each intersection of the trunk line; taking each intersection of the trunk line as a modelingobject, constructing an optimization model taking minimization of vehicle average delay as a target, and realizing minimization of the vehicle average delay by adjusting the phase difference; and solving the model to obtain the phase difference between the intersection and the upstream intersection. According to the method, the mixed integer linear programming model with the maximum throughput and the quadratic programming model with the minimum vehicle average delay are established and solved, so that the traffic capacity and the service level of the trunk line intersection can be effectively improved.
本发明公开了一种过饱和交通状态干线单向信号协调设计方法与装置，其中方法包括获取过饱和交通状态干线目标路段的几何参数、交通参数、控制参数以及需进行优化时段的交通流量数据；以干线为建模对象，构建以最大化干线吞吐量为目标的优化模型，通过调节绿灯时长实现干线吞吐量最大化；求解模型得到干线各交叉口干线直行与支线左转相位绿灯时长；以干线各交叉口为建模对象，构建以最小化车均延误为目标的优化模型，通过调节相位差来实现车均延误最小化；求解模型得到交叉口与其上游交叉口之间的相位差。本发明通过建立并求解吞吐量最大化的混合整数线性规划模型与车均延误最小化的二次规划模型，能够有效提升干线交叉口通行能力与服务水平。
Dokumentinformationen
Supersaturated traffic state trunk line one-way signal coordination design method and device
一种过饱和交通状态干线单向信号协调设计方法与装置
2020-10-27
Patent
Elektronische Ressource
Chinesisch
| IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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