本文選題：城市高架快速路　切入點：出口匝道　出處：《西南交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：城市快速路在城市交通體系中居于主體地位,是城市路網(wǎng)的骨架,擔(dān)負(fù)著大量中長距離的快速交通任務(wù)。但是隨著城市經(jīng)濟社會的不斷發(fā)展,交通出行量日益增長,城市快速路的交通擁擠問題日益顯現(xiàn),城快速路原先所具備的優(yōu)勢有所弱化。導(dǎo)致城市快速路交通擁堵的原因很多,其中出口匝道處車輛無法及時得到疏解而使排隊回溯至快速路主線是比較突出的問題,值得重點研究解決這一問題的方法。本文以高架快速路出口匝道、出口匝道與相銜接交叉口之間的銜接段以及相銜接的下游交叉口為研究對象,從出口匝道設(shè)置和控制兩個方面入手研究解決高架快速出口匝道擁堵的方法。本文首先著重對出口匝道的擁堵原因、落地點與地面道路的銜接位置以及控制方法做出分析,并簡要介紹了可能性轉(zhuǎn)移矩陣?yán)碚摵凸活A(yù)信號控制方法,為后面的研究奠定基礎(chǔ)。在出口匝道設(shè)置方面著重利用可能性轉(zhuǎn)移矩陣?yán)碚摲治隽顺隹谠训楞暯佣巫钚￠L度的計算方法。在出口匝道的控制方面,從考慮相交道路的交通效益出發(fā),通過改變排隊檢測器的布設(shè)位置,基于綠燈相位延長和綠燈相位提前激活方法,提出了可接受排隊長度控制策略；在出口匝道落地點處的地面道路上增設(shè)第二信號燈的前提下,以排隊長度為約束條件設(shè)計了出口匝道的協(xié)調(diào)控制策略；最后利用公交預(yù)信號的控制思想,通過公交優(yōu)先與匝道車輛優(yōu)先的對應(yīng)關(guān)系,設(shè)計了基于公交預(yù)信號控制思想的出口匝道控制策略。本文借助VISSIM軟件對上述控制策略進(jìn)行了驗證,得到了以下結(jié)論：出口匝道排隊檢測器布設(shè)在出口匝道落地點處比其布設(shè)在論文所提出的可接受排隊長度處時,在出口匝道車輛的優(yōu)先駛出方面具有優(yōu)越性,而可接受排隊長度控制策略在兼顧相交道路的交通效益方面相較于把排隊檢測器布設(shè)在出口匝道落地點處的控制策略更具有優(yōu)越性。
[Abstract]:Urban expressway is the backbone of urban road network, which plays the main role in the urban transportation system. But with the development of urban economy and society, the amount of traffic travel is increasing day by day. The problem of urban expressway traffic congestion is becoming increasingly apparent, and the advantages of urban expressway have been weakened. There are many reasons for urban expressway traffic congestion. It is a prominent problem that the vehicles at the exit ramp can not be cleared up in time so that the queue can be traced back to the main line of the expressway, so it is worth studying the method to solve this problem emphatically. In this paper, the exit ramp of the elevated expressway is used to solve the problem. The link between the exit ramp and the intersecting intersection, as well as the downstream intersection connected with each other, is the object of study. From two aspects of exit ramp setting and control, this paper studies the methods to solve the congestion of elevated rapid exit ramp. Firstly, this paper analyzes the reasons of the congestion of the exit ramp, the connection position between the landing location and the ground road, and the control methods. The theory of possibility transfer matrix and the method of bus pre-signal control are briefly introduced. To lay the foundation for the following research. In the aspect of ramp setting, the method of calculating the minimum length of the exit ramp junction is analyzed by using the possibility transfer matrix theory. In the aspect of the control of the exit ramp, the method of calculating the minimum length of the exit ramp is analyzed. Considering the traffic efficiency of intersecting roads, an acceptable queue length control strategy is proposed by changing the location of the queue detector, and based on the method of extending the green phase and activating the green phase ahead of time. On the premise of adding a second signal light on the ground road at the exit ramp landing place, the coordinated control strategy of the exit ramp is designed with the queue length as the constraint condition, and finally, the idea of bus pre-signal control is used. Based on the corresponding relation between bus priority and on-ramp vehicle priority, an exit ramp control strategy based on bus pre-signal control is designed. The above control strategy is verified by VISSIM software. The following conclusions are obtained: when the exit ramp queue detector is arranged at the exit ramp landing place, it has advantages in the priority exit of the exit ramp vehicle when it is placed at the acceptable queue length proposed in the paper. The acceptable queue length control strategy is more advantageous than the one where the queue detector is arranged at the exit ramp location in terms of considering the traffic efficiency of intersecting roads.
【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】：2015
【分類號】：U491.54

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相關(guān)期刊論文 前10條

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本文編號：1584391