平面交叉口綜合待行區(qū)的交通組織優(yōu)化設(shè)計研究
發(fā)布時間：2018-08-07 07:54
【摘要】：在過去二十年里,中國進(jìn)入了一個非�？焖俚某鞘谢M(jìn)程階段,以驚人的速度向外擴(kuò)張形成城市蔓延。在城市化進(jìn)程大發(fā)展中我們享受了中國經(jīng)濟(jì)騰飛的紅利以及城市基礎(chǔ)設(shè)施交通系統(tǒng)的完善優(yōu)化,城市道路路網(wǎng)縱橫交錯,極大地提高了我們?nèi)粘３鲂械谋憷院涂蛇_(dá)性,但是我們也面臨城市化發(fā)展帶來的人口紅利所帶來的嚴(yán)重交通擁堵問題,我們的城市像攤大餅一樣,在這種城市發(fā)展模式背后,我們的城市總體規(guī)劃是以小汽車為導(dǎo)向,這導(dǎo)致我們的城市道路在現(xiàn)有的道路資源供給中是供不應(yīng)求的,我們迫切需要對城市道路進(jìn)行交通組織優(yōu)化設(shè)計,提高我們道路以及交叉口時空利用率。論文總結(jié)了四種非傳統(tǒng)交通組織優(yōu)化設(shè)計方案,分別為借用對向左轉(zhuǎn)車道CLL(Contraflow left-turn lane)設(shè)計方法、串聯(lián)"Tandem"組織優(yōu)化設(shè)計方法、結(jié)合公交優(yōu)先策略的預(yù)信號設(shè)計應(yīng)用和EFT(Exit-lanes for left-turn)出口式-左轉(zhuǎn)交通模式。提出了 一種基于自適應(yīng)控制的主預(yù)信號相協(xié)調(diào)控制的綜合待行區(qū)交通組織優(yōu)化方法,創(chuàng)新性提出了多種控制策略和根據(jù)實時的交通狀況動態(tài)選擇不同的策略應(yīng)用方法,并結(jié)合公交優(yōu)先設(shè)計出了不同的交通組織策略,得到了預(yù)信號設(shè)計的第一層控制流程和不同策略實時切換的第二層控制流程的自適應(yīng)算法。考慮到交通流特性的時空動態(tài)變化,通過車輛檢測技術(shù),結(jié)合ITS技術(shù),提出了動態(tài)選擇最有利于當(dāng)前道路運行狀態(tài)的策略控制方法�？偨Y(jié)歸納了策略控制方法的幾何條件、交通條件、參數(shù)條件和設(shè)施條件。提出了控制算法的關(guān)鍵性評價指標(biāo):人均延誤。通過VISSIM實例交叉口仿真論證策略的適用性并得到了評價指標(biāo)分析,當(dāng)?shù)缆吠ㄐ辛髁枯^大,綜合待行區(qū)交通組織優(yōu)化設(shè)計可以較大幅度提高其通行能力。當(dāng)公共汽車發(fā)車頻率較高且公共汽車與小汽車乘客載客率之比較大時,設(shè)置有公交優(yōu)先的交通組織方法對提高道路通行能力、減小人均延誤有顯著變化。最后論文總結(jié)了主要研究成果和未來這一方向研究的展望和進(jìn)一步深入有待挖掘完善的研究內(nèi)容。
[Abstract]:In the past two decades, China has entered a very rapid stage of urbanization, expanding at an alarming rate to form urban sprawl. In the great development of urbanization, we have enjoyed the dividend of China's economic take-off and the improvement and optimization of urban infrastructure and transportation system. The urban road network has crisscrossed and greatly improved the convenience and accessibility of our daily travel. But we are also facing serious traffic congestion caused by the demographic dividend of urbanization. Our city is like a pie cake, and behind this urban development model, our urban master plan is driven by cars. As a result, our urban roads are in short supply of existing road resources. We urgently need to optimize the traffic organization of urban roads and improve the space-time utilization ratio of our roads and intersections. In this paper, four kinds of non-traditional traffic organization optimization design schemes are summarized. They are borrowing the CLL (Contraflow left-turn lane design method of the left-turn lane, and the series "Tandem" organization optimization design method. Combined with the application of pre-signal design of bus priority strategy and EFT (Exit-lanes for left-turn) exit-left-turn traffic mode. In this paper, a new method of traffic organization optimization based on the coordinated control of main presignal phase based on adaptive control is proposed. A variety of control strategies and dynamic selection of different strategy application methods based on real-time traffic conditions are proposed. Combined with bus priority, different traffic organization strategies are designed, and the first layer control flow of pre-signal design and the adaptive algorithm of the second layer control flow with different strategies are obtained. Considering the temporal and spatial dynamic changes of traffic flow characteristics, a strategy control method which is most beneficial to the current road running state is put forward by vehicle detection technology and ITS technology. The geometric condition, traffic condition, parameter condition and facility condition of the strategy control method are summarized. The key evaluation index of the control algorithm, the per capita delay, is proposed. The applicability of the strategy is demonstrated by the VISSIM example and the evaluation index is analyzed. When the traffic flow is large, the traffic capacity can be greatly improved by the optimization design of traffic organization in the waiting area. When the frequency of bus departure is high and the passenger carrying rate of bus and car is high, the traffic organization method with bus priority can improve the road capacity and reduce the delay per capita. Finally, the paper summarizes the main research results and future research prospects and further research content to be excavated.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U491.23
本文編號：2169371
[Abstract]:In the past two decades, China has entered a very rapid stage of urbanization, expanding at an alarming rate to form urban sprawl. In the great development of urbanization, we have enjoyed the dividend of China's economic take-off and the improvement and optimization of urban infrastructure and transportation system. The urban road network has crisscrossed and greatly improved the convenience and accessibility of our daily travel. But we are also facing serious traffic congestion caused by the demographic dividend of urbanization. Our city is like a pie cake, and behind this urban development model, our urban master plan is driven by cars. As a result, our urban roads are in short supply of existing road resources. We urgently need to optimize the traffic organization of urban roads and improve the space-time utilization ratio of our roads and intersections. In this paper, four kinds of non-traditional traffic organization optimization design schemes are summarized. They are borrowing the CLL (Contraflow left-turn lane design method of the left-turn lane, and the series "Tandem" organization optimization design method. Combined with the application of pre-signal design of bus priority strategy and EFT (Exit-lanes for left-turn) exit-left-turn traffic mode. In this paper, a new method of traffic organization optimization based on the coordinated control of main presignal phase based on adaptive control is proposed. A variety of control strategies and dynamic selection of different strategy application methods based on real-time traffic conditions are proposed. Combined with bus priority, different traffic organization strategies are designed, and the first layer control flow of pre-signal design and the adaptive algorithm of the second layer control flow with different strategies are obtained. Considering the temporal and spatial dynamic changes of traffic flow characteristics, a strategy control method which is most beneficial to the current road running state is put forward by vehicle detection technology and ITS technology. The geometric condition, traffic condition, parameter condition and facility condition of the strategy control method are summarized. The key evaluation index of the control algorithm, the per capita delay, is proposed. The applicability of the strategy is demonstrated by the VISSIM example and the evaluation index is analyzed. When the traffic flow is large, the traffic capacity can be greatly improved by the optimization design of traffic organization in the waiting area. When the frequency of bus departure is high and the passenger carrying rate of bus and car is high, the traffic organization method with bus priority can improve the road capacity and reduce the delay per capita. Finally, the paper summarizes the main research results and future research prospects and further research content to be excavated.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U491.23
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