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er two hours at the site, to only see a tiny bit of the place due to the crowds. Last year, 428 million tourists traveled in China over the weeklong holiday in October. Traveling during this period is a matter that needs thorough preparation. If you are short on time to plan the uping Golden Week it may not be a bad idea to avoid some of the most crowded places for now. There is always a place so fascinating that everyone yearns for. Arxan is a place like this. The beauty of Arxan is everlasting regardless of the changing of four seasons. Bestowed by nature, its spectacular seasonal landscape and mountains are just beyond word. Arxan is a crucial destination for the remended travelling route, China Inner Mongolia Arxan — Hailar — Manzhouli. It is also the joint of the four prairies across the SinoMongolian border, where people gravitate towards the exotic atmosphere mixed with Chinese, Russian, and Mongolia elements. As a historic site for the Yitian Battle, Arxan still embodies the spirit of Genghis Khan. Walking into Arxan, you will be amazed by a kaleidoscope of geous colors all the year round the Spring azaleas blooming red in the snow, the Summer sea wavering blue in the breeze, the Autumn leaves painted in yellow covering volcanic traces, and the Winter woods shining white on the vast alpine snowscape. Hinggan League Arxan city is situated in the far eastern area of Inner Mongolia Autonomous Region. Its full name Haren Arxan means hot holy water in the Mongolian language. Arxan is a tourism city in the northern frontier with a blend of large forest, grand prairies, vast snowfield, heaven lake cluster, thermium, as well as volcanic cluster. It is a rare and unique ecotourism base filled with healthy sunshine, clean air and unspoiled green. Nestled close to the country39。 x=[6,14,2,10,6,12,7,2,11,10,11,6,8,13,6,14,7,14,2,11,11,1,8,2]。是她,建議我讀了許多與我論文相關(guān)的書籍,幫我找到了論文的立論基礎(chǔ);是她,在我屢次困惑之時(shí)及時(shí)答疑解惑,讓我的疑慮煙消云散;也是她,每次都仔細(xì)地批閱我的初稿,幫我發(fā)現(xiàn)錯(cuò)誤與不足;還是她,我多次犯錯(cuò)的時(shí)候仍然耐心地幫我指出,我的論文才能得以完成。對(duì) T =93s 這一數(shù)據(jù)進(jìn)行分析,該數(shù)據(jù)讓人從直覺上覺得很不可思議,但卻是較為合理可行的,原因如下: 當(dāng)視頻一中的交通事故所處橫斷面距離上游路口變?yōu)?140 米時(shí),對(duì)視屏一進(jìn)行仔細(xì)觀察,對(duì)視屏上的時(shí)間進(jìn)行記錄,在時(shí)間邏輯上,兩車發(fā)生交通事故的時(shí)間為 16:41:50,此時(shí),可從視頻上看到上游路口處的十字路的通行情況,是第一相位處在通行狀態(tài),故第二相位的交通指示燈是紅燈,此時(shí)發(fā)生事故的橫斷面到上游路口的路段只有來自車道一極少的車輛通行,此時(shí)可由一車道完全通行,不會(huì)形成車輛排隊(duì)。 求解問題三 事故所影響路段的路段車輛排隊(duì)長(zhǎng)度即堵車長(zhǎng)度,對(duì)題目中所求問題進(jìn)行機(jī)理分析如下: 假設(shè)堵車長(zhǎng)度為 L ,堵車長(zhǎng)度為單位長(zhǎng)度 ? ?1ll? 時(shí)通過障礙路段的車輛數(shù)目為 x ,此處假稱為流率。進(jìn)一步 具體分析對(duì)比視頻 1和視頻 2中兩起道 要求對(duì)視頻中的道路實(shí)際通行能力、事故持續(xù)時(shí)間、路段上游車流量以及交通事故發(fā)生后車輛排隊(duì)長(zhǎng)度的因素進(jìn)行分析并建立模型分析前面三者對(duì)后者的影響關(guān)系變換。 而在國內(nèi),除少量類型的道路通行能力在《城市道路設(shè)計(jì)規(guī)范》中有所規(guī)定外,目前為止僅有少數(shù)文章給出了道路通行能力的不同算法,尚不統(tǒng)一。 針對(duì)問題一 :對(duì)附件一中的視頻 1進(jìn)行數(shù)據(jù)采集,將采集的數(shù)據(jù)用 Excel呈現(xiàn)出來,然后利用 MATLAB 軟件對(duì)數(shù)劇進(jìn)行定量分析,發(fā)現(xiàn)定量分析在這里存在缺陷,進(jìn)一步建立如下模型: 31 21 []) (scfQ VtBQ Q v t? ? ? ?? ( )利用這個(gè)模型可以定性地分析出 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。故可用交通損失量來刻畫交通事故發(fā)生過程中道路通行能力的變化過程;另外,若能找到交通事故路段堵車車流量隨著堵車長(zhǎng)度變化的變化率,便可進(jìn)一步得出 事故持續(xù)時(shí)間、路段上游車流量以及交通事故發(fā)生后車輛排隊(duì)長(zhǎng)度等因素對(duì)道路實(shí)際 同行能力的影響函數(shù)。 表 1 車流量統(tǒng)計(jì)表 基于表 1中所統(tǒng)計(jì)車流量數(shù)據(jù),用 MATLAB 軟件做出其變化形式如圖 1 小型車 10 9 9 6 7 8 9 6 8 8 8 10 9 8 9 11 9 11 10 7 8 9 6 8 8 大型車 1 0 3 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 1 1 1 0 1 0 標(biāo)準(zhǔn)車 12 9 15 6 7 8 11 6 8 8 10 10 9 10 9 11 9 11 10 9 10 11 6 10 8 興義民族師范學(xué)院本科畢業(yè)論文 6 0 5 10 15 20 25 30 35891011121314 圖 1 觀察圖 1 我們可以得到出,在 T2T1 時(shí)間段內(nèi),車流量隨著時(shí)間的變化呈現(xiàn)出不規(guī)律的周期性,這一點(diǎn)從實(shí)際生活當(dāng)中能得到合理的解釋。 現(xiàn)假設(shè) q 為變化率,參照藥物在體內(nèi)的分布與排除模型 【 3】 可建立如下微分方程模型 : ? ? 2DQ qDL ? ? ? ? ? ? ? 興義民族師范學(xué)院本科畢業(yè)論文 9 接下來分析變化率 q 與事故道路橫斷面實(shí)際通行能力 cB 、路段上有車流量 之間的關(guān)系。 針對(duì)上述模型中所用數(shù)據(jù)均由人為統(tǒng)計(jì)而得出,與真實(shí)數(shù)據(jù)誤差 有較大的缺陷,可采用統(tǒng)計(jì)軟件對(duì)數(shù)據(jù)進(jìn)行統(tǒng)計(jì)以減少以上建模過程中的誤差。 t=[1:1:30]。s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightlycolored scenery full of emotions. Autumn in the northern part of the country es earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long distance and even camp here only to capture a moment of the nature wonder. The silver birch turns golden, while the larch is still proudly green. You will find yourself drowned in the intoxicating red of the wild fruits as well as the glamour of flowers in full blown. And your heart will be lingering on the woods as it39。 c=[5,14,2,9,6,14,8,1,11,9,10,6,7,14,4,16,6,14,2,12,11,0,7,1]。曾經(jīng)給予我莫大幫助的同學(xué)們,祝你們學(xué)業(yè)有成,萬事順利! 我迷茫無助的時(shí)候,是我的 論文導(dǎo)師陸美老師悉心的指導(dǎo)。即從事故發(fā)生開始,經(jīng)過 93秒后車輛排隊(duì)長(zhǎng)度將到達(dá)上游路口。通過對(duì)視頻一和視頻二的變道車輛數(shù)目進(jìn)行統(tǒng)計(jì)如表 2 表 2 兩段視頻車流量的統(tǒng)計(jì)表 變道 合計(jì) 31 1 6 0 5 4 6 4 4 0 4 3 3 3 4 5 1 7 2 5 0 4 71 21 4 8 2 4 2 8 4 4 1 7 6 7 3 3 9 3 9 4 9 2 8 105 13 6 2 4 2 3 3 4 0 2 0 5 1 2 3 2 1 3 4 2 2 0 51 23 5 3 8 8 4 5 1 6 1 8 3 8 3 6 3 2 5 1 7 3 6 96 從表 2得到,交通事故占用一二車道與車道占用二三車道 相比,被迫進(jìn)行變道的車輛數(shù)目較少,故實(shí)際通行能力較大,車流量也更多。 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的額外因素興義民族師范學(xué)院本科畢業(yè)論文 4 對(duì)道路所處橫斷面實(shí)際通行能力的影響,得出道路所處橫斷面在交通事故發(fā)生至撤離期間實(shí)際通行能力變化過程。自 1994 年 5月至 2021 年 7 月,國際上先后召開了“道路通行能力國際學(xué)術(shù)討論會(huì)”,其中在 1998 年 6 月丹麥哥本哈根第三屆國際通行能力討論會(huì)時(shí),中國交通部公路科學(xué)研究所派人參加了會(huì)議,并發(fā)表了題為“中國通行能力研究的回顧與展望”的國家報(bào)告。 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。 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。其中周期性由上游交通燈變化的周期恒定而導(dǎo)致;而周期的不規(guī)律性則 是因?yàn)橐惶飚?dāng)中不同時(shí)段經(jīng)過同一道路的車流量不同,比如說,上午經(jīng)過的多下午經(jīng)過的