本文選題：多路左轉(zhuǎn) + 釋放特性�。� 參考：《吉林大學(xué)》2017年碩士論文

【摘要】：隨著左轉(zhuǎn)需求的增加,在大型交叉口多采用多路左轉(zhuǎn)車道組的設(shè)置形式,并且在城市立交橋下,為了充分利用橋下資源,也多設(shè)置橋下多路左轉(zhuǎn);多路左轉(zhuǎn)車道組相比以往的單車道設(shè)置,不僅車道數(shù)增加,而且車道分布也不再像傳統(tǒng)的靠左設(shè)置,出現(xiàn)了分離式、并列式等復(fù)雜的設(shè)置形式;由于左轉(zhuǎn)車輛在駛過入口停止線進(jìn)入交叉口后,缺乏嚴(yán)格的標(biāo)線約束,在左轉(zhuǎn)車道組左轉(zhuǎn)車輛釋放過程中,左轉(zhuǎn)車輛并不是各行其道,而是在釋放過程中存在交織、換道等復(fù)雜的駕駛行為,這些不正當(dāng)駕駛行為不僅會(huì)降低行駛的安全性,而且還會(huì)影響通行效率。因此為了更加合理得調(diào)整左轉(zhuǎn)車輛的釋放形式,規(guī)范駕駛員的駕駛行為,提高整個(gè)交叉口的通行效率,需要對(duì)左轉(zhuǎn)車輛釋放過程中的駕駛行為特性及變道發(fā)生時(shí)車輛間的位置關(guān)系特征進(jìn)行研究。在總結(jié)前人研究的基礎(chǔ)上,本文通過調(diào)查長(zhǎng)春市典型交叉口的左轉(zhuǎn)相關(guān)數(shù)據(jù),進(jìn)行對(duì)比分析,從宏觀和微觀兩個(gè)方面來闡述了左轉(zhuǎn)車輛釋放特性;建立了交叉口內(nèi)左轉(zhuǎn)換道最小安全距離模型,并建立了考慮橫向移動(dòng)的OV模型,針對(duì)交叉口內(nèi)左轉(zhuǎn)車輛變道過程中發(fā)生的橫向移動(dòng)對(duì)后續(xù)車流的影響進(jìn)行了分析。主要完成工作如下:(1)左轉(zhuǎn)車輛宏觀特性分析以長(zhǎng)春市選取的6個(gè)不同組成形式的典型交叉口的實(shí)際調(diào)查數(shù)據(jù)為基礎(chǔ),應(yīng)用數(shù)據(jù)統(tǒng)計(jì)對(duì)左轉(zhuǎn)車輛釋放過程中的排隊(duì)選擇特性、提前轉(zhuǎn)彎特性以及速度分布特性進(jìn)行了宏觀分析,闡述了左轉(zhuǎn)釋放期間,車輛的宏觀運(yùn)行特性。(2)左轉(zhuǎn)車輛微觀特性分析利用軌跡提取軟件針對(duì)左轉(zhuǎn)釋放過程中車輛的行駛軌跡進(jìn)行提取,分析了左轉(zhuǎn)釋放過程中車輛軌跡重合和偏移特性;并且剖析了周期內(nèi)不同時(shí)段車輛的換道行為特性,此外,還針對(duì)換道行為車輛的速度、車頭時(shí)距分布進(jìn)行了研究。(3)危險(xiǎn)變道行為分析通過對(duì)交叉口內(nèi)左轉(zhuǎn)危險(xiǎn)變道行為進(jìn)行解析,找出與變道車輛緊密相關(guān)的三個(gè)相鄰車輛,建立了最小安全距離模型,探究了加速度與臨界碰撞時(shí)間對(duì)最小安全距離的影響;改進(jìn)了OV模型,并且通過數(shù)據(jù)仿真,模擬出左轉(zhuǎn)車輛在變道過程中發(fā)生的橫向偏移對(duì)鄰近車輛的干擾特性。
[Abstract]:With the increase of left turn demand, many left lane groups are set up at large intersections, and in order to make full use of the resources under the bridge, many left turns under the bridge are set up under the city overpass. Compared with the previous single-lane setting, the multi-lane left-turn lane group not only increases the number of lanes, but also the lane distribution is no longer like the traditional left-side setting, there are many complicated settings, such as separation, juxtaposition and so on. Due to the lack of strict marking constraints after the left-turn vehicle passes through the entrance stop line and enters the intersection, during the left-turn vehicle release process, the left-turn vehicle does not go its own way, but interweaves in the release process. These improper driving behaviors not only reduce the safety of driving, but also affect the traffic efficiency. Therefore, in order to adjust the release form of the left-turn vehicle more reasonably, regulate the driver's driving behavior, and improve the traffic efficiency of the whole intersection, It is necessary to study the characteristics of driving behavior and the position relationship between vehicles in the course of left-turn vehicle release. On the basis of summing up the previous studies, this paper makes a comparative analysis of the left-turn data of the typical intersection in Changchun, and expounds the characteristics of the left-turn vehicle release from the macro and micro aspects. The minimum safe distance model of the left transition track in the intersection is established, and the OV model considering the lateral movement is established. The influence of the lateral movement of the left turn vehicle in the intersection on the subsequent traffic flow is analyzed. The main work to be completed is as follows: 1) the macro characteristics of left-turn vehicles are analyzed. Based on the actual investigation data of six typical intersections with different components selected in Changchun City, the queuing selection characteristics of left-turn vehicles during the release process are analyzed by using data statistics. The characteristics of forward turning and velocity distribution are analyzed macroscopically, and the period of left turn release is expounded. Analysis of the microscopic characteristics of the left turn vehicle the track extraction software is used to extract the track of the vehicle during the left turn release process, and the coincidence and offset characteristics of the vehicle track during the process of the left turn release are analyzed. In addition, the characteristics of vehicle changing behavior in different periods of the cycle are analyzed. In addition, the speed of the vehicle is also analyzed. Analysis of dangerous change of track behavior in intersection by analyzing the behavior of dangerous change of track in the intersection, three adjacent vehicles closely related to the vehicle are found out, and the minimum safe distance model is established. The influence of acceleration and critical collision time on the minimum safe distance is investigated, and the OV model is improved, and the interference characteristics of the lateral offset of the left-turn vehicle to the adjacent vehicle during the course of changing track are simulated by data simulation.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：U491

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本文編號(hào)：1807824