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交通信息作用下出行者的路徑選擇模型研究

發(fā)布時(shí)間:2018-04-08 08:27

  本文選題:路徑選擇模型 切入點(diǎn):ATIS 出處:《東南大學(xué)》2015年碩士論文


【摘要】:由于經(jīng)濟(jì)的快速發(fā)展,我國(guó)機(jī)動(dòng)車(chē)輛迅猛增加,交通需求不斷膨脹,交通需求與交通供給之間矛盾日益突出,導(dǎo)致交通問(wèn)題日益凸顯,作為有效解決交通問(wèn)題的智能交通系統(tǒng)(ITS)應(yīng)運(yùn)而生。先進(jìn)的出行者信息系統(tǒng)(ATIS)是ITS重要的組成部分,能夠?yàn)槌鲂姓咴诔鲂羞^(guò)程中提供準(zhǔn)確、快捷的信息,因此ATIS對(duì)出行者的路徑選擇過(guò)程產(chǎn)生一定的影響,本文主要是研究在ATIS作用下出行者的路徑選擇模型及其算法。本文首先分析已有的路徑選擇原理和路徑選擇模型,以交通信息對(duì)出行者的基礎(chǔ)上對(duì)原有路徑選擇模型加以改進(jìn),得出了符合ATIS作用下的路徑選擇模型:第一種是UE誘導(dǎo)策略下路徑選擇模型,第二種是SO誘導(dǎo)策略下的路徑選擇模型,并對(duì)它們進(jìn)行求解,隨之對(duì)ATIS下的路網(wǎng)可靠性進(jìn)行了分析計(jì)算,最后以蚌埠市禹會(huì)區(qū)為例驗(yàn)證ATIS所占有的市場(chǎng)份額變化的情況下,該區(qū)域路網(wǎng)的運(yùn)行情況,具體得出如下結(jié)論:(1)當(dāng)車(chē)輛誘導(dǎo)系統(tǒng)所占有的市場(chǎng)份額不變時(shí),隨著流量的增加,主要路段和次要路段的流量都有所增加。就主要路段而言,在UE誘導(dǎo)策略下的分配流量要高于SO誘導(dǎo)策略下的分配流量。對(duì)于次要路段而言,SO誘導(dǎo)策略下的分配流量始終高于UE誘導(dǎo)策略下的分配流量。(2)對(duì)于主要路徑的路段而言,隨著市場(chǎng)份額的增加,其分配流量主要是先增大后減少;就處于次要路徑的路段而言,隨著市場(chǎng)份額的增加,其交通流量先增大后減少,然后再增大,ATIS所占有的市場(chǎng)份額為0.4是一個(gè)分界點(diǎn)。(3)隨著市場(chǎng)份額變化,在UE和SO誘導(dǎo)策略下,其路網(wǎng)行程時(shí)間可靠性都發(fā)生變化。就整體而言,隨著市場(chǎng)份額增大,在SO誘導(dǎo)策略下的行程時(shí)間可靠性始終大于在UE誘導(dǎo)策略下的。
[Abstract]:Due to the rapid development of economy, the rapid increase of motor vehicles in China, the continuous expansion of traffic demand, the contradiction between traffic demand and traffic supply is increasingly prominent, leading to increasingly prominent traffic problems.The Intelligent Transportation system (ITS), as an effective solution to traffic problems, emerges as the times require.The advanced traveller information system (ATIS) is an important part of ITS, which can provide accurate and fast information for travelers during the travel process. Therefore, ATIS has a certain impact on the path selection process of travelers.This paper mainly studies the path selection model and its algorithm under the action of ATIS.Firstly, this paper analyzes the existing path selection principle and path selection model, and improves the existing path selection model based on the traffic information.The path selection model under the action of ATIS is obtained: the first is the path selection model under the UE induction strategy, the second is the path selection model under the so induced strategy, and they are solved.Then the reliability of the road network under ATIS is analyzed and calculated. Finally, taking Yuhui District of Bengbu City as an example to verify the change of the market share occupied by ATIS, the operation of the regional road network is analyzed and calculated.The following conclusion is drawn: 1) when the market share of the vehicle induction system remains unchanged, the flow of the main section and the secondary section increases with the increase of the flow.For the main sections, the distribution flow under UE induction strategy is higher than that under so induction strategy.For the secondary section, the distribution flow under so inductive strategy is always higher than that under UE induction strategy. For the main route, with the increase of market share, the distribution flow increases first and then decreases;The reliability of road network travel time changes.As a whole, with the increase of market share, the reliability of travel time under so-induced strategy is always higher than that under UE induction strategy.
【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(lèi)號(hào)】:U491

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