畢業(yè)論文-車道被占用對(duì)城市道路通行能力的影響(存儲(chǔ)版)
【正文】 初始排隊(duì)長(zhǎng)度為零，且事故持續(xù)不撤離。 興義民族師范學(xué)院本科畢業(yè)論文 3 第二章 建模前期工作和準(zhǔn)備 問題內(nèi)容 車道被占用是指因交通事 故、路邊停車、占道施工等因素，導(dǎo)致車道或道路橫斷面通行能力在單位時(shí)間內(nèi)降低的現(xiàn)象。 車道被占用的情況種類繁多、復(fù)雜，正確估算車道被占用對(duì)城市道路通行能力的影響程度，不僅可以確定城市道路的合理建設(shè)規(guī)模和合理建設(shè)模式，還為城市道路路網(wǎng)規(guī)劃、工程可行性研究、城市道路設(shè)計(jì)、建設(shè)后評(píng)估等方面提供更為科學(xué)的理論依據(jù)。 針對(duì)問題二：采集視頻 2中的相關(guān)數(shù)據(jù)，利用問題一中建立的模型，觀察視頻 2 中的交通事故發(fā)生至撤離期間 ,事故所處橫斷面實(shí)際通行能力的變化過程，然后利用對(duì)比分析得方法說(shuō)明同一橫斷面交通 事故所占車道不同對(duì)該橫斷面實(shí)際通行能力影響的差異。 關(guān)鍵詞： 指數(shù)模型 實(shí)際通行能力 車輛排隊(duì)長(zhǎng)度 MATLAB 軟件 興義民族師范學(xué)院本科畢業(yè)論文 II Abstract Lane occupied refers to in a traffic accident, the roadside parking ,roadway takingup factors such as construction ,lead to driveway or road crosssection capacity in unit time to reduce the phenomenon ,by the utilization of various kinds ,plex ,to correctly estimate the lanes occupied the influence degree of the urban road traffic presence of examining and approve construction highly channelizing scheme and design of the road ,roadside parking space and set the bus bay ,busstation ,and so on . In the view of the problem a: video in attachment 11 for data acquisition ,acquisition of data with Excel ,then carries on the quantitative analysis using MATLAB software logarithms series ,found the quantitative analysis of defects in here ,further model are as follows: 31 21 []) (scfQ VtBQ Q v t? ? ? ?? （ ）、 This model can be used to qualitatively analysis of the traffic accident happened to evacuate , accident in the changing process of crosssection actual capacity. For problem 2: collect the relevant data from video 2,question 1is used to establish model ,observation during the video 2 to evacuate the accident ,the accident of crosssectional the changing process of the actual capacity ,and then using the method of parative analysis to illustrate the same crosssectional lane of traffic accident different influence on the transverse section actual capacity difference. For question 3:refer to the distribution of the drug in the body to eliminate model ,the use of differential equation solving principle to establish the index of vehicle queue length model 6280 .1 4 0 .8 3 0cuQBCt e LL ??? ? ? analyses the length and the time ,the number of cars ,the relationship between the traffic capacity. For question 4:the model was established based on the third question ,the related data generation which can calculate since the accident vehicle queue length as the time arrived at the upstream intersection. Keywords: Exponential model The actual capacity Vehicle queue length MATLAB software 興義民族師范學(xué)院本科畢業(yè)論文 1 第一章 緒論 研究的背景 本題為 2021 年 9 月份的全國(guó)大學(xué)生數(shù)學(xué)建模競(jìng)賽本科組的 A 題，研究本題目對(duì)提高大學(xué)生運(yùn)用數(shù)學(xué)解決實(shí)際問題能力的提高有著重大的意義。自 1994 年 5月至 2021 年 7 月，國(guó)際上先后召開了“道路通行能力國(guó)際學(xué)術(shù)討論會(huì)”，其中在 1998 年 6 月丹麥哥本哈根第三屆國(guó)際通行能力討論會(huì)時(shí)，中國(guó)交通部公路科學(xué)研究所派人參加了會(huì)議，并發(fā)表了題為“中國(guó)通行能力研究的回顧與展望”的國(guó)家報(bào)告。 車道被占用的情況種類繁多、復(fù)雜，正確估算車道被占用對(duì)城市道路通行能力的影響程度，將為交通管理部門正確引導(dǎo)車輛行駛、審批占道施工、設(shè)計(jì)道路渠化方案、設(shè)置路邊停車位和設(shè)置非港灣式公交車站等提供理論依據(jù)。 經(jīng)過研究視頻 1 中交通事故發(fā)生至撤離期間因交通事故事帶來(lái)的額外因素興義
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