城市道路車輛換道行為特性研究
發(fā)布時(shí)間:2018-06-16 00:22
本文選題:城市道路 + 換道行為; 參考:《北京交通大學(xué)》2014年碩士論文
【摘要】:摘要:道路車輛的車道變換行為是常見(jiàn)的交通現(xiàn)象,車道變換描述的是道路車輛因需要而變換車道的行駛行為。交通流狀況在很大程度上受車輛的換道行為影響,尤其是在某些交通擁擠的路段。已有的研究結(jié)果對(duì)從行為和模型兩個(gè)方面·的換道行為已有詳盡描述,但目前換道行為對(duì)交通流的定量影響尚不明確。 首先,本論文以大量城市路段車輛實(shí)際觀測(cè)數(shù)據(jù)為基礎(chǔ),主要利用數(shù)理統(tǒng)計(jì)方法全面地分析車輛行駛行為特性及對(duì)交通流的影響。 其次,針對(duì)城市車輛換道行為,對(duì)車輛車型、行駛速度、交通流量、車道密度、換道頻率、車頭時(shí)距和換道時(shí)間進(jìn)行分析,確定其統(tǒng)計(jì)間隔與樣本量,并分析樣本誤差。分析道路車輛交通特性,并對(duì)其進(jìn)行數(shù)據(jù)有效性檢驗(yàn)。 最后,本文分析有無(wú)出入口路段車輛換道頻率與交通流密度的調(diào)查數(shù)據(jù),并量化換道行為對(duì)交通流密度的影響。針對(duì)強(qiáng)制換道和自由換道兩種情況,分析車輛換道前原車道與換道完成后的目標(biāo)車道的密度差與換道時(shí)間的關(guān)系。本文創(chuàng)新點(diǎn)在于,建立車輛在城市快速路上的換道行為與交通流宏觀特性之間的對(duì)應(yīng)關(guān)系,對(duì)實(shí)際道路上車輛換道情況進(jìn)行觀察和數(shù)據(jù)分析,得出每單位時(shí)間駕駛員期望換道流量與總流量的比值不僅與原車道密度和目標(biāo)車道密度差值有關(guān),而且與原車道阻塞密度與原車道密度的差值有關(guān)。通過(guò)交通流供需理論改進(jìn)Laval. J.A的四參數(shù)模型,通過(guò)迭代得出城市道路車輛的換道頻率與原車道和目標(biāo)車道密度及流量之間的關(guān)系。通過(guò)實(shí)際調(diào)查數(shù)據(jù)標(biāo)定模型,確定未知參數(shù),用觀測(cè)數(shù)據(jù)來(lái)進(jìn)一步驗(yàn)證模型。用實(shí)際車輛換道頻率數(shù)據(jù)與模型模擬車輛換道結(jié)果進(jìn)行對(duì)比分析,來(lái)判斷模型是否能夠真實(shí)客觀地反映路段交通的實(shí)際情況。該模型簡(jiǎn)化了計(jì)算車輛換道頻率的流程,為交通流理論和道路交通管理提供理論依據(jù)。
[Abstract]:Absrtact: lane change behavior of road vehicles is a common traffic phenomenon. Traffic flow is largely affected by the changing of traffic, especially in some congested sections. The existing research results have described the behavior and model of the traffic flow in detail, but the quantitative effect of the behavior on the traffic flow is not clear. Firstly, based on a large number of actual observation data of vehicles in urban road sections, this paper mainly analyzes the characteristics of vehicle driving behavior and its influence on traffic flow by means of mathematical statistics. Secondly, according to the changing behavior of urban vehicles, the paper analyzes the vehicle type, speed, traffic flow, lane density, change frequency, headway distance and change time, determines the statistical interval and sample size, and analyzes the sample error. The traffic characteristics of road vehicles are analyzed, and the validity of the data is tested. Finally, the investigation data of the frequency and density of traffic flow are analyzed, and the influence of changing traffic behavior on the density of traffic flow is quantified. In this paper, the relationship between the density difference between the original lane and the target lane after the completion of the change of lane is analyzed in the case of forced and free change of the lane, and the relationship between the change time and the density difference of the original lane before and after the change of lane is analyzed. The innovation of this paper lies in the establishment of the corresponding relationship between the changing behavior of vehicles on the urban expressway and the macroscopic characteristics of the traffic flow, and the observation and data analysis of the actual vehicle changing on the road. It is concluded that the ratio of expected change flow to total flow per unit of time is related not only to the difference between the original lane density and the target lane density, but also to the difference between the original lane congestion density and the original lane density. To improve Lavalthrough the theory of supply and demand of traffic flow. The four-parameter model of J.A. is used to obtain the relationship between the changing frequency of urban road vehicle and the density and flow of the original lane and the target lane by iteration. Through the actual survey data calibration model, the unknown parameters are determined, and the model is further verified by the observation data. In order to judge whether the model can truly and objectively reflect the actual situation of road traffic, the data of actual vehicle change frequency are compared and analyzed with the result of simulation of vehicle change. The model simplifies the flow of calculating the frequency of vehicle change and provides theoretical basis for traffic flow theory and road traffic management.
【學(xué)位授予單位】:北京交通大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:U491.25
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
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本文編號(hào):2024330
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