信號(hào)交叉口機(jī)非隔離設(shè)施設(shè)置條件分析
本文關(guān)鍵詞: 機(jī)非隔離 膨脹消散 機(jī)非沖突 服務(wù)水平 設(shè)置條件 出處:《東南大學(xué)》2015年碩士論文 論文類型:學(xué)位論文
【摘要】:大部分城市交叉口都通過物理隔離的形式將機(jī)動(dòng)車與非機(jī)動(dòng)車分隔,但關(guān)于設(shè)置隔離條件的研究并不多見,并且對(duì)于不同道路和交通流量條件下,選擇何種形式的隔離以及隔離設(shè)施寬度的確定也沒有詳細(xì)的說明。本文以城市信號(hào)交叉口為研究對(duì)象,通過調(diào)查多個(gè)設(shè)有不同機(jī)非隔離形式的交叉口,分析非機(jī)動(dòng)車的運(yùn)行特性;其次分析交叉口機(jī)非沖突的影響因素,考慮顯著因素并建立機(jī)非沖突數(shù)模型:基于非機(jī)動(dòng)車騎行者對(duì)交叉口安全的感知評(píng)價(jià)構(gòu)建服務(wù)水平模型,以機(jī)非沖突數(shù)作為服務(wù)水平的評(píng)價(jià)指標(biāo),并給出不同服務(wù)水平等級(jí)下交叉口機(jī)非隔離設(shè)施的設(shè)置形式及寬度。首先,選擇設(shè)有不同機(jī)非隔離形式的交叉口設(shè)計(jì)調(diào)查方案,通過調(diào)查數(shù)據(jù)的統(tǒng)計(jì)分析,分別對(duì)非機(jī)動(dòng)車的排隊(duì)等候、車群膨脹和車群消散過程進(jìn)行描述,得到交叉口進(jìn)口道非機(jī)動(dòng)車排隊(duì)密度與車道寬度、電動(dòng)自行車比例的回歸關(guān)系式。以非機(jī)動(dòng)車膨脹寬度和膨脹數(shù)來分析非機(jī)動(dòng)車在交叉口的膨脹特性,并對(duì)膨脹寬度和膨脹數(shù)的計(jì)算模型進(jìn)行理論推導(dǎo)。通過分析非機(jī)動(dòng)車在交叉口的消散行為,建立基于非機(jī)動(dòng)車消散選擇行為的logistic模型,并最終得出非機(jī)動(dòng)車二次膨脹數(shù)的計(jì)算公式。其次,從交叉口機(jī)非沖突的概念及產(chǎn)生機(jī)理出發(fā),通過對(duì)機(jī)非沖突的影響因素分析,確定機(jī)非沖突的可能影響因素有機(jī)動(dòng)車排隊(duì)量、非機(jī)動(dòng)車膨脹數(shù)和二次膨脹數(shù)。通過偏相關(guān)分析確定機(jī)非沖突數(shù)的主要影響因素,利用實(shí)際數(shù)據(jù)對(duì)機(jī)非沖突數(shù)進(jìn)行多元回歸,得到機(jī)非沖突數(shù)與非機(jī)動(dòng)車膨脹數(shù)以及二次膨脹數(shù)的回歸模型,并對(duì)其進(jìn)行檢驗(yàn)。最后,根據(jù)本文對(duì)交叉口機(jī)非隔離設(shè)施服務(wù)水平的定義,基于非機(jī)動(dòng)車騎行者對(duì)交叉口安全狀況感受的定量描述,以機(jī)非沖突數(shù)作為服務(wù)水平的評(píng)價(jià)指標(biāo)。運(yùn)用系統(tǒng)聚類與模糊聚類的方法將沖突數(shù)調(diào)查樣本分為8個(gè)類別,并對(duì)交叉口機(jī)非隔離設(shè)施服務(wù)水平的分級(jí)進(jìn)行了研究,在8類沖突數(shù)樣本的基礎(chǔ)上,通過調(diào)整,最終將服務(wù)水平劃為六個(gè)等級(jí)。本文最終給出了在不同服務(wù)水平等級(jí)下交叉口機(jī)非隔離設(shè)施的設(shè)置方案(包括進(jìn)出口道機(jī)非隔離的形式及寬度)。本文對(duì)交叉口非機(jī)動(dòng)車運(yùn)行特性、機(jī)非沖突特性、服務(wù)水平和設(shè)置條件的研究成果,對(duì)于城市交通規(guī)劃、設(shè)計(jì)與管理具有理論和實(shí)踐意義。
[Abstract]:Most urban intersections separate motor vehicles from non-motor vehicles in the form of physical isolation, but the research on setting isolation conditions is rare, and for different road and traffic flow conditions. The choice of the form of isolation and the width of isolation facilities is not explained in detail. This paper takes the urban signal intersection as the research object, through the investigation of many intersections with different machine and non-isolation forms. The operating characteristics of non-motor vehicles are analyzed. Secondly, the influence factors of intersection non-conflict are analyzed, and the significant factors are considered and the model of non-conflict number is established. The service level model is constructed based on the perception of non-motorized riders to the safety of intersections. Take the number of machine non-conflict as the evaluation index of service level, and give the setting form and width of non-isolation facilities of intersections under different levels of service. First of all. Through the statistical analysis of the survey data, this paper describes the process of queue waiting, vehicle group expansion and vehicle dispersal of non-motor vehicles. The regression relationship between the queue density and lane width and the proportion of electric bicycle at the intersections is obtained. The expansion characteristics of non-motor vehicles at intersections are analyzed by the expansion width and expansion number of non-motor vehicles. The calculation model of expansion width and expansion number is derived theoretically. By analyzing the dissipation behavior of non-motor vehicles at intersections, a logistic model based on the behavior of non-motor vehicle dissipation selection is established. Finally, the calculation formula of non-motor vehicle secondary expansion number is obtained. Secondly, starting from the concept and mechanism of non-conflict of intersections, the influence factors of non-conflict are analyzed. The possible factors to determine the non-conflict are vehicle queue number, non-vehicle expansion number and secondary expansion number. The main influencing factors of engine non-conflict number are determined by partial correlation analysis. By using the actual data, the regression model of non-collision number, non-vehicle expansion number and secondary expansion number is obtained, and it is tested. Finally, the regression model of engine non-conflict number, non-motor vehicle expansion number and secondary expansion number is obtained. According to the definition of the service level of the intersections' non-isolation facilities, based on the quantitative description of the non-motorized cyclists' perception of the intersection safety conditions. Taking the non-conflict number as the evaluation index of service level, the conflict number survey samples are divided into eight categories by the methods of systematic clustering and fuzzy clustering. The classification of the service level of non-isolation facilities at intersections is studied. Based on the 8 kinds of conflict number samples, the adjustment is carried out. Finally, the service level is divided into six grades. Finally, this paper gives a scheme of setting up the non-isolation facilities of intersections under different service levels (including the form and width of non-isolation of the entrance and exit lanes). In this paper, the operating characteristics of non-motor vehicles at intersections are discussed. The research results of non-conflict characteristics, service level and setting conditions are of theoretical and practical significance for urban traffic planning, design and management.
【學(xué)位授予單位】:東南大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:U491
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