【摘要】：元胞傳輸模型作為一種典型的交通流宏觀仿真模型，為城市道路路網(wǎng)交通流的研究提供了行之有效的方法。本論文以西安市某區(qū)域路網(wǎng)為研究對象，利用可變元胞傳輸模型構(gòu)建區(qū)域路網(wǎng)模型，通過仿真模擬和分析不同交通條件下的交通流現(xiàn)象，作為改進和評價交通管理方案的依據(jù)。論文的主要研究工作和成果如下： （1）根據(jù)元胞傳輸模型的原理和交通流特點，詳細闡述了元胞傳輸模型模擬交通流的過程，建立了路段交通流的元胞傳輸仿真模型，模擬和分析了自由流和擁堵兩種狀態(tài)。 （2）設(shè)計了一種考慮回滯現(xiàn)象的可變元胞傳輸模型，并對簡單路段進行了仿真設(shè)計和分析，結(jié)果表明，，該模型更貼合實際，符合交通流的實測現(xiàn)象。 （3）對城市區(qū)域路網(wǎng)的交通流特征進行了分析，建立了基于可變元胞傳輸模型的仿真模型，并以車輛平均延誤時間最小目標(biāo)，設(shè)計了交叉口渠化方法和信號配時算法，仿真研究了擁堵及自由流狀態(tài)下的交通流演化規(guī)律及特征。結(jié)果表明，該算法可以提升路段整體效率和通行能力
[Abstract]:As a typical macro simulation model of traffic flow, cellular transmission model provides an effective method for the study of traffic flow in urban road network. In this paper, a regional road network in Xi'an is taken as the research object, and the regional road network model is constructed by using the variable cell transmission model. The traffic flow phenomenon under different traffic conditions is simulated and analyzed as the basis for improving and evaluating the traffic management scheme. The main research work and achievements of this paper are as follows: (1) according to the principle of cellular transmission model and the characteristics of traffic flow, the process of simulating traffic flow by cellular transmission model is described in detail, and the cellular transmission simulation model of road section traffic flow is established. Two states of free flow and congestion are simulated and analyzed. (2) A variable cell transmission model considering the lag phenomenon is designed, and the simulation design and analysis of the simple road section are carried out. the results show that the model is more practical and accords with the measured phenomenon of traffic flow. (3) the traffic flow characteristics of urban area road network are analyzed, and the simulation model based on variable cell transmission model is established, and the intersection canalization method and signal timing algorithm are designed with the target of minimizing the average delay time of vehicles. The evolution law and characteristics of traffic flow under congestion and free flow are simulated and studied. The results show that the algorithm can improve the overall efficiency and traffic capacity of the road section.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U491

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本文編號：2496107