有軌電車交叉口信號優(yōu)先策略研究及其VISSIM仿真實現(xiàn)
[Abstract]:The priority control of tram intersection is the key to ensure the tram to pass quickly and improve the passenger comfort. Priority control not only gives more rights to trams, but also leads to the decrease of traffic efficiency at intersections, which leads to queue congestion. At present, the common priority control strategies have their own characteristics and application scenarios, so it is difficult to judge their applicability in the process of implementation. The traffic simulation technology can reproduce the traffic flow operation law, and can simulate and evaluate the implementation scheme. The quantized data is given for the user to make decision. The application of traffic simulation in tram intersection priority can predict the effect of each priority strategy, and then lead to more effective management and control, so as to improve the operational efficiency of the intersection. In this paper, the influence factors of tram intersection are analyzed firstly, including vehicle performance, road weight form, track layout and so on. The above factors will be simulated in the process of VISSIM modeling. Road network layout and other forms. Then the classification of signal priority strategy and the composition of signal control system at intersection are introduced, and the implementation process of no priority, absolute priority, relative priority and single point balance control strategy is analyzed. Then the modeling of intersection network in VISSIM is realized, and the modularization method is used in the process of signal logic realization, so that the signal control logic of each line type intersection can be realized by different processing modules in series. Finally, the secondary development based on VISSIM COM interface is realized, and the user interface is provided to input the self-defined simulation parameters, and the visual evaluation results and summary report are provided. After analyzing the evaluation results of each strategy, it is concluded that the single point balancing strategy can better balance the tram traffic priority with the traffic queue congestion at the intersection. This strategy not only guarantees the minimum access rights of roads, but also gives more opportunities to trams with more passengers.
【學(xué)位授予單位】:西南交通大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:U491.54
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