本文選題：陰雨天氣 + 干道　； 參考：《重慶交通大學(xué)》2014年碩士論文

【摘要】：隨著社會(huì)發(fā)展水平的進(jìn)一步提高,機(jī)動(dòng)車保有量的快速增長,交通供需矛盾日益突出,城市干道交通擁堵已成為當(dāng)下人們最為關(guān)注和亟待解決的問題。而隨著陰雨天氣的發(fā)生,城市干道交通擁堵態(tài)勢更加嚴(yán)重,交通延誤增大,行車速度較低,擁堵范圍擴(kuò)大,帶來時(shí)間損失和燃料費(fèi)用增加。目前,我國普遍城市每年都要經(jīng)歷不同程度的降雨,而對(duì)擁堵的相關(guān)研究主要集中于正常天氣,或者是條件非常惡劣的冰雪天氣,為緩解陰雨天氣下城市交通擁堵問題,需要對(duì)陰雨天氣下城市干道交通擁堵形成機(jī)理以及疏導(dǎo)方法進(jìn)行分析研究。 論文首先對(duì)擁堵的概念、分類、屬性、空間分布、等級(jí)劃分等相關(guān)理論進(jìn)行研究,而后在分析了陰雨天氣對(duì)路段和交叉口交通流參數(shù)影響的基礎(chǔ)上,得到陰雨天氣下交通流參數(shù)的折減系數(shù)以及回歸方程,通過建立陰雨天氣下路段交通流模型、交叉口延誤模型等,分別對(duì)路段、交叉口、路網(wǎng)擁堵形成機(jī)理進(jìn)行分析。城市干道交通擁堵程度分為暢通、輕度擁堵、中度擁堵和高度擁堵四個(gè)等級(jí),隨后針對(duì)不同的擁堵等級(jí),提出了陰雨天氣城市干道不同擁堵程度的疏導(dǎo)方法。其中,構(gòu)建陰雨天氣下的路阻函數(shù),建立了基于路網(wǎng)的動(dòng)態(tài)系統(tǒng)最優(yōu)分配的城市干道疏導(dǎo)模型是研究的重點(diǎn)。最后,以陰雨天氣頻繁的重慶南坪環(huán)道的干道交通為實(shí)例對(duì)象,運(yùn)用仿真軟件對(duì)擁堵疏導(dǎo)進(jìn)行動(dòng)態(tài)仿真和結(jié)果分析。 通過以上研究,論文得到了陰雨天氣下城市干道交通擁堵形成機(jī)理,和適用于陰雨天氣不同擁堵等級(jí)的城市干道疏導(dǎo)方法,為緩解陰雨天氣下城市干道交通擁堵狀況,提供了新的視角和研究方法,對(duì)城市干道交通的管理和控制具有重要的理論參考和實(shí)踐指導(dǎo)意義。在今后的研究中,可以以此為基礎(chǔ),對(duì)陰雨天氣下的交通流特性、基于路網(wǎng)和基于交叉口的擁堵疏導(dǎo)、陰雨天氣下疏導(dǎo)擁堵的控制策略等方面進(jìn)行更為深入細(xì)致的研究。
[Abstract]:With the further improvement of social development, the rapid growth of vehicle ownership, the increasingly prominent contradiction between supply and demand of traffic, traffic congestion in urban trunk roads has become the most concerned and urgent problems. With the occurrence of overcast and rainy weather, the traffic congestion of urban trunk roads becomes more serious, the traffic delay increases, the speed of traffic is lower, the area of congestion expands, and the time loss and fuel cost increase. At present, most cities in China experience different degrees of rainfall every year, and the related studies on congestion mainly focus on normal weather, or very harsh snow and ice weather, in order to alleviate the traffic congestion problem in cities under cloudy and rainy weather. It is necessary to analyze and study the formation mechanism of traffic congestion in urban trunk roads and the method of dredging in rainy weather. In this paper, the concept of congestion, classification, attributes, spatial distribution, classification and other related theories are studied, and then, based on the analysis of the influence of rainy weather on traffic flow parameters of road sections and intersections, the paper analyzes the influence of rain weather on traffic flow parameters of road sections and intersections. The reduction coefficient and regression equation of traffic flow parameters under rainy weather are obtained. By establishing traffic flow model and intersection delay model under rainy weather, the formation mechanism of road section, intersection and road network congestion is analyzed respectively. The traffic congestion degree of urban trunk roads can be divided into four grades: unblocked, mild, moderate and high congestion. Then, aiming at different congestion levels, this paper puts forward a method of dredging different traffic congestion on urban trunk roads in cloudy and rainy weather. The key point of the research is to construct the road resistance function under rainy weather and to establish the optimal allocation model of urban trunk roads based on the dynamic system of road network. Finally, taking the main road traffic of Nanping Ring Road in Chongqing as an example, the dynamic simulation and the result analysis of congestion relief are carried out by using the simulation software. Through the above research, the paper obtains the formation mechanism of urban trunk road traffic congestion under cloudy and rainy weather, and the methods of urban trunk road diversion suitable for different congestion levels in rainy weather, in order to alleviate the traffic congestion situation of urban trunk roads under cloudy and rainy weather, It provides a new perspective and research method, which has important theoretical reference and practical guiding significance for the management and control of urban trunk road traffic. In the future research, we can study the characteristics of traffic flow in rainy weather, traffic congestion based on road network and intersection, and the control strategy of congestion in rainy weather.
【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

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