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基于路段的環(huán)境目標(biāo)系統(tǒng)最優(yōu)動態(tài)交通分配模型

發(fā)布時間:2018-05-17 17:19

  本文選題:動態(tài)交通分配 + 系統(tǒng)最優(yōu)。 參考:《合肥工業(yè)大學(xué)》2017年碩士論文


【摘要】:動態(tài)交通分配理論作為智能交通系統(tǒng)項(xiàng)目的核心技術(shù)基礎(chǔ)之一,在交通問題的研究中有著一定的應(yīng)用。隨著對交通問題研究的深入,環(huán)境因素愈發(fā)成為交通管理部門運(yùn)輸規(guī)劃和政策制定的重要影響因子之一。本文以尾氣排放作為研究的環(huán)境目標(biāo),考慮單一目的地交通網(wǎng)絡(luò)的系統(tǒng)最優(yōu)動態(tài)交通分配問題。本論文的研究工作主要包括以下三個方面:首先,我們采用階梯型函數(shù)近似表示單個路段的累計(jì)流量,進(jìn)而將路段累計(jì)流入量依據(jù)其駛出路段的時刻分解為多個分部流量。依據(jù)不同的車輛分類假設(shè)構(gòu)建了兩種離散時間的尾氣排放模型,并通過數(shù)值算例驗(yàn)證了兩種尾氣排放模型的精確性。其次,本文基于路段傳輸模型構(gòu)建了單一目的地交通網(wǎng)絡(luò)的環(huán)境目標(biāo)系統(tǒng)最優(yōu)動態(tài)交通分配模型,以最小化總的系統(tǒng)排放作為優(yōu)化的目標(biāo)。在基于路段傳輸模型的動態(tài)交通流約束的基礎(chǔ)上,考慮了無滯留約束以及路段累計(jì)流量分解約束,最終模型被構(gòu)建成一個混合整數(shù)線性規(guī)劃問題。任何基于平均速度的尾氣排放模型都可以應(yīng)用在本文提出的模型當(dāng)中,并通過數(shù)值算例驗(yàn)證了提出模型的性能。最后,本文在以上提出模型的基礎(chǔ)上,考慮在路段傳輸模型中添加速度限制策略,將多等級速度限制的選擇構(gòu)建成混合整數(shù)線性規(guī)劃問題,并考慮了速度限制條件下的無滯留約束。提出了三種速度限制方案以及相應(yīng)的系統(tǒng)最優(yōu)動態(tài)交通模型,并通過數(shù)值算例驗(yàn)證了模型的限速效果。
[Abstract]:As one of the core technologies of Intelligent Transportation system (its), dynamic Traffic assignment Theory (DTA) has been applied in the research of traffic problems. With the development of traffic research, environmental factors have become one of the most important factors in transportation planning and policy making. In this paper, the problem of optimal dynamic traffic assignment for a single destination transportation network is considered. The research work of this paper mainly includes the following three aspects: firstly, we use the ladder function to approximate the cumulative flow of a single section, and then decompose the cumulative inflow of the section into multiple partial flows according to the time when it leaves the road. According to different vehicle classification assumptions, two discrete time emission models are constructed, and the accuracy of the two models is verified by numerical examples. Secondly, based on the road transport model, the optimal dynamic traffic assignment model of the environment target system based on the single destination traffic network is constructed, with minimizing the total system emissions as the optimization objective. On the basis of the dynamic traffic flow constraints based on the road transport model, the model is constructed into a mixed integer linear programming problem by considering the non-retention constraints and the decomposition constraints of the cumulative flow of the road sections. Any exhaust emission model based on average velocity can be applied to the model proposed in this paper, and the performance of the proposed model is verified by numerical examples. Finally, on the basis of the above proposed model, this paper considers adding speed restriction strategy to the section transmission model, and constructs the choice of multi-class speed limit into mixed integer linear programming problem. The non-retention constraint is considered under the condition of velocity limit. Three speed limiting schemes and the corresponding optimal dynamic traffic model are proposed, and the effectiveness of the model is verified by numerical examples.
【學(xué)位授予單位】:合肥工業(yè)大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:U491

【參考文獻(xiàn)】

中國期刊全文數(shù)據(jù)庫 前3條

1 段里仁;毛力增;;從歷史角度看城市交通擁堵成因及對策[J];綜合運(yùn)輸;2012年11期

2 陸化普,殷亞峰;動態(tài)系統(tǒng)最優(yōu)分配模型的研究[J];公路交通科技;1996年04期

3 陸化普,史其信,殷亞峰;動態(tài)交通分配理論的回顧與展望[J];公路交通科技;1996年02期



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