本文選題：環(huán)形交叉口 + 信號(hào)控制　； 參考：《重慶交通大學(xué)》2014年碩士論文

【摘要】：無(wú)信號(hào)環(huán)形交叉口對(duì)低飽和度的交通流具有較好的適應(yīng)性，但隨著城市化進(jìn)程的不斷加快，道路交通需求與日俱增，無(wú)信號(hào)環(huán)形交叉口的交通擁堵情況越來(lái)越嚴(yán)重，對(duì)環(huán)形交叉口進(jìn)行信號(hào)控制已極為普遍。然而，在信號(hào)控制的環(huán)形交叉口中，車輛入環(huán)車速較慢，車間相互作用劇烈，入環(huán)過(guò)程耗費(fèi)時(shí)間長(zhǎng)，且較小的入環(huán)速度進(jìn)一步阻礙后續(xù)車流的正常運(yùn)行。因此，在保證車輛行車安全的前提下，以提高環(huán)形交叉口運(yùn)行效率，減小延誤為目的，提出新的信號(hào)控制方法，對(duì)環(huán)形交叉口控制模式理論研究具有重要意義。 本文首先分析了環(huán)形交叉口的沖突特性以及交通流運(yùn)行特性，并對(duì)環(huán)形交叉口單進(jìn)口道放行方式和左轉(zhuǎn)二次停車法的控制原理、控制模型進(jìn)行了詳細(xì)闡述，運(yùn)用VISSIM仿真軟件進(jìn)行仿真，分析其適用性。 在此基礎(chǔ)上，提出了停車線前置法，詳細(xì)闡述了該方法的控制思想。建立了停車線前置距離模型。以四叉環(huán)形交叉口為例，研究交叉口信號(hào)相位的設(shè)計(jì)方法�；诒鞠蜃筠D(zhuǎn)車流與相鄰進(jìn)口道（逆時(shí)針?lè)较颍┲毙熊嚵鞒隹谙嗤�，提出環(huán)形交叉口左直協(xié)同放行相位。以保證車流安全、提高環(huán)形交叉口通行能力為目的，建立重疊相位模型，給出相位重疊時(shí)間、綠燈間隔時(shí)間等參數(shù)的計(jì)算方法。并以Webster周期法為基礎(chǔ)，針對(duì)非飽和與飽和環(huán)形交叉口，建立適合停車線前置法的周期時(shí)長(zhǎng)模型。運(yùn)用VISSIM仿真軟件對(duì)不同半徑，不同左轉(zhuǎn)比例以及不同飽和度的交叉口進(jìn)行仿真，，分析停車線前置法的適用條件。 最后，利用VISSIM仿真軟件，在相同條件下，對(duì)停車線前置法與現(xiàn)有環(huán)形交叉口控制方案進(jìn)行對(duì)比分析。并以重慶市盤溪路環(huán)形交叉口為例，驗(yàn)證停車線前置法的有效性。
[Abstract]:Unsignalized roundabout has better adaptability to low saturation traffic flow. However, with the acceleration of urbanization, the demand for road traffic is increasing day by day, and the traffic congestion of unsignalized annular intersection is becoming more and more serious. It is very common to control the signal at roundabout. However, in the annular intersection of signal control, the speed of the vehicle entering the loop is slow, the interaction between the workshop and the workshop is intense, the process of entering the loop takes a long time, and the smaller speed of entering the loop further hinders the normal operation of the subsequent traffic flow. Therefore, in order to improve the efficiency and reduce the delay of circular intersection, a new signal control method is proposed, which is of great significance to the theoretical study of the control mode of circular intersection. In this paper, the conflict characteristics and traffic flow characteristics of annular intersection are analyzed firstly, and the control principle and control model of single entrance lane release method and left turn secondary stop method are described in detail. VISSIM simulation software is used to simulate and analyze its applicability. On the basis of this, the forward parking line method is put forward, and the control idea of this method is described in detail. The front distance model of parking line is established. In this paper, the design method of the signal phase of a quadrilateral circular intersection is studied. Based on the fact that the current left-turn flow is the same as the direct flow exit of the adjacent inlet (counterclockwise), the phase of the circular intersection is proposed. In order to ensure the safety of traffic flow and improve the traffic capacity of circular intersection, the overlapping phase model is established, and the calculation methods of parameters such as phase overlap time and green light interval are given. On the basis of Webster period method, a period time model suitable for parking line leading method is established for unsaturated and saturated circular intersection. The VISSIM software is used to simulate the intersection with different radius, different ratio of left turn and different saturation, and the applicable conditions of the front stop line method are analyzed. Finally, under the same conditions, the VISSIM simulation software is used to compare the control scheme between the front stop line method and the existing annular intersection. Taking the ring intersection of Panxi Road in Chongqing as an example, the validity of the front stop line method is verified.
【學(xué)位授予單位】：重慶交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U491.23

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3 張旭e

本文編號(hào)：1923222