信号交叉口两难区控制策略研究

发布时间：2018-06-14 17:16

本文选题：动态两难区 + 控制策略　；参考：《山东理工大学》2015年硕士论文

【摘要】：两难区域是在交叉口处既不能通过也不能停下的区域,一旦车辆陷入两难区,会出现既不能安全停靠于停止线前又不能顺利通过交叉口的窘境现象,该现象加大了车辆在交叉口处闯红灯和追尾事件的发生概率,降低了道路交叉口的行驶安全性和通过效率。本文通过分析基于静态两难区模型的控制方法在解决实际两难区问题上存在的不足,建立动态两难区数学模型,分析三种不同状态下的动态两难区长度范围,研究车辆车速、最大减速度、最大加速度、驾驶员反应时间以及黄灯时间对动态两难区长度的影响关系。根据分析出的两难区车流量与车速、车速与两难区黄灯时间的关系设置两难区黄灯时间模糊规则,提出动态两难区黄灯时间模糊控制策略,建立黄灯时间FIS编辑器,利用黄灯时间规则表和响应表,对两难区黄灯时间进行模糊控制。结合动态两难区模型和动态两难区黄灯时间模糊控制策略,建立动态两难区总体控制策略。根据提出的动态两难区总体控制策略,利用智能交通和车路协同技术,构建动态两难区车载预警和黄灯配时控制系统。最后,通过不同道路交叉口车流量的调查情况表对VISSIM仿真路网中的车辆类别、期望速度、加减速度、车流量进行设置,并根据交叉口固定信号灯相位图、配时表和模糊控制响应表对VISSIM路网中的信号灯配时进行更改,仿真得出车辆在通过有模糊控制黄灯时间和黄灯时间固定配时的交叉口时,其前者陷入两难区的概率远小于后者陷入两难区的概率。
[Abstract]:The dilemma area is the area which can neither pass nor stop at the intersection. Once the vehicle is caught in the dilemma area, there will be a dilemma that can not be safely parked in front of the stop line and can not pass through the intersection smoothly. This phenomenon increases the probability of the red light and rear-end events at the intersection, and reduces the safety and efficiency of the road intersection. By analyzing the deficiency of the control method based on static dilemmas model in solving the practical dilemmas, this paper establishes a mathematical model of dynamic dilemmas, analyzes the length range of dynamic dilemmas in three different states, and studies the vehicle speed. The effects of maximum deceleration, maximum acceleration, driver response time and yellow light time on the length of dynamic dilemmas. According to the analysis of the relationship between vehicle flow and speed, speed and yellow lamp time in dilemma area, the fuzzy rule of yellow lamp time in dilemma area is set up, and the fuzzy control strategy of yellow lamp time in dynamic dilemma area is put forward, and the FIS editor of yellow lamp time is established. Using the yellow lamp time rule table and the response table, the yellow lamp time in the dilemma area is controlled by fuzzy method. Combined with the dynamic dilemma model and the yellow lamp time fuzzy control strategy, the overall dynamic dilemma control strategy is established. According to the overall control strategy of dynamic dilemma area, the vehicle warning and yellow light timing control system in dynamic dilemma area is constructed by using intelligent traffic and vehicle-road cooperation technology. Finally, the vehicle types, expected speed, plus or minus speed, traffic flow in VISSIM simulation road network are set according to the phase diagram of the fixed signal light at the intersection according to the survey situation of traffic flow at different road intersections, and the vehicle categories, expected speed, plus or minus speed and traffic flow are set according to the VISSIM simulation road network. The timing of signal lights in the VISSIM network is changed by the timing table and the fuzzy control response table. The simulation results show that the vehicle passes through the intersection with the fixed timing of the fuzzy control yellow light and the yellow light. The probability of the former being caught in a dilemma is much less than that of the latter.
【学位授予单位】：山东理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.54

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