本文關(guān)鍵詞：遠(yuǎn)引左轉(zhuǎn)掉頭中央分隔帶開口間距的研究　出處：《長安大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 城市道路 遠(yuǎn)引左轉(zhuǎn)掉頭 中央分隔帶開口間距 沖突點 交通組織行為 VISSIM 交通仿真

【摘要】：遠(yuǎn)引左轉(zhuǎn)掉頭交通組織方式使直接左轉(zhuǎn)的車輛先直行再利用交叉口下游較寬的中央分隔帶掉頭回轉(zhuǎn)，，間接地把左轉(zhuǎn)變?yōu)橛肄D(zhuǎn)，有效地分擔(dān)了加載在通行能力相對較大路段交叉口的一部分交通負(fù)荷，提高了車輛運行的高效性和安全性，是目前城市道路疏解交通阻塞的重要方法之一。由于遠(yuǎn)引左轉(zhuǎn)掉頭會增加主路左轉(zhuǎn)車輛的繞行距離，所以合理的中央分隔帶開口間距成為重要的研究內(nèi)容。 本文首先對左轉(zhuǎn)車輛的沖突點進行了具體分析，提出了遠(yuǎn)引平面交叉口的概念。根據(jù)遠(yuǎn)引左轉(zhuǎn)交通組織原則與城市主干路出入口管理的基本原則，引出了遠(yuǎn)引左轉(zhuǎn)掉頭交通組織的適用條件。 通過對交通流相關(guān)概念的研究，并根據(jù)車輛直接左轉(zhuǎn)與遠(yuǎn)引左轉(zhuǎn)運行過程的對比分析、左轉(zhuǎn)交通流及遠(yuǎn)引左轉(zhuǎn)掉頭下的交通流特性的分析，以及對四種中央分隔帶開口位置的比較分析，得出掉頭最佳位置為選取在道路交叉口下游中央分隔帶開口的結(jié)論，明確了遠(yuǎn)引左轉(zhuǎn)掉頭交通組織行為實施的優(yōu)越性與可行性。 通過研究中央分隔帶開口間距影響因素及國外中央分隔帶開口間距的標(biāo)準(zhǔn)，提出了適應(yīng)我國城市主干路中央分隔帶開口的布設(shè)方式包括車輛轉(zhuǎn)彎半徑及中央分隔帶開口形式、大小、寬度等的確定方法。重點通過交織段運行的相關(guān)分析，確定了中央分隔帶開口間距的大小。 結(jié)合計算簡例并運用VISSIM進行仿真驗證，進一步確認(rèn)了借用交織段交織距離的計算確定遠(yuǎn)引左轉(zhuǎn)掉頭中央分隔帶開口間距的正確性與科學(xué)性，為遠(yuǎn)引左轉(zhuǎn)掉頭在城市道路中的應(yīng)用提供一定的參考依據(jù)。
[Abstract]:Far left turn turn the traffic organization causes the direct left turn vehicle to go straight first and then turn around using the wider central separation belt downstream of the intersection and indirectly turn left into right turn. It can effectively share part of the traffic load at the intersection with relatively large traffic capacity, and improve the efficiency and safety of the vehicle operation. It is one of the most important methods to relieve traffic congestion on urban roads at present. Since turning around from far to left will increase the detour distance of left-turn vehicles on the main road, it is important to study the reasonable distance between the openings of the central separation belt. In this paper, the conflict point of the left-turn vehicle is analyzed, and the concept of the remote intersection is put forward. According to the principle of the traffic organization and the basic principles of the entrance and exit management of the urban trunk road. The suitable conditions for the traffic organization of the far left turn turn are introduced. Through the study of traffic flow related concepts, and according to the vehicle direct left turn and remote left turn operation process comparative analysis, left turn traffic flow and far left turn turn under the traffic flow characteristics analysis. By comparing and analyzing the opening position of four kinds of central separator, it is concluded that the best position of turning around is to select the opening of the central separation belt downstream of the road intersection. The superiority and feasibility of traffic organization behavior of long turn left turn are defined. By studying the influence factors of the opening spacing of the central separator and the standards of the opening spacing of the central separator in foreign countries. This paper puts forward a method for determining the opening of the central separation belt of the urban trunk road in China, including the turning radius of the vehicle and the opening form, size and width of the central separation belt, etc. The key points are the related analysis of the operation of the interleaving section. The distance between the openings of the central separator is determined. Combined with a simple calculation example and the use of VISSIM simulation verification, further confirmed the use of Interleaved Interleaved Interleaved distance calculation to determine the distance between the distance between the center of the far left turn and turn around the center of the separation between the correctness and scientific. It provides a certain reference for the application of long-distance left turn turn in urban road.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U491.233

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本文編號：1381948