發(fā)布時間：2018-05-14 14:53

  本文選題：道路工程 + 山區(qū)公路�。� 參考：《中國公路學報》2016年07期

【摘要】：為掌握汽車行駛軌跡與公路幾何線形之間的拓撲關(guān)系,在7條山區(qū)雙車道公路上開展實車試驗,采集了自然駕駛狀態(tài)下的汽車運行參數(shù)并從中提取了行駛軌跡,得到了軌跡橫向偏移率的連續(xù)變化曲線,分析了行駛軌跡的形態(tài)特征及其受公路幾何參數(shù)的影響規(guī)律。結(jié)果表明:汽車進入左轉(zhuǎn)彎后先是切向彎道內(nèi)側(cè),之后駛向外側(cè),再駛回本車道,右轉(zhuǎn)彎的軌跡變化規(guī)律基本類似,但切彎點和侵入對向車道的位置有所差別;對于中小轉(zhuǎn)角的彎道,真實軌跡的切彎點要早于理想軌跡,并且真實軌跡要更靠向曲線外側(cè);彎道行駛時間越長、駕駛?cè)嗽絻A向于侵占對向車道,并且會出現(xiàn)二次切彎現(xiàn)象;切彎后由于慣性,汽車可能會過于靠攏彎道外側(cè),駕駛?cè)诵鑼壽E進行矯正但矯正過度會導致車輛再次侵入對向車道;平曲線半徑越小、汽車軌跡侵占對向車道的程度越嚴重,左轉(zhuǎn)彎的轉(zhuǎn)角中等大小時的軌跡偏移率最大,右轉(zhuǎn)彎轉(zhuǎn)角越大軌跡偏移率波動幅度越大;回頭曲線會發(fā)生嚴重侵占對向車道的行為并且右轉(zhuǎn)時的侵占程度更高。
[Abstract]:In order to understand the topological relationship between the vehicle track and the geometry of the highway, a real vehicle test was carried out on 7 mountain area two-lane highways. The running parameters of the vehicle in the state of natural driving were collected and the track of the vehicle was extracted from it. The continuous variation curve of the lateral migration rate of the track is obtained, and the shape characteristics of the track and its influence on the highway geometric parameters are analyzed. The results show that after entering the left turn, the vehicle first cuts to the inner side of the bend, then goes outside, then goes back to the driveway. The track of the right turn is basically the same, but the position of the tangent corner and the intrusive lane is different. For the corner of small and medium turning angle, the tangent point of the real track is earlier than the ideal track, and the true track should be closer to the outside of the curve, the longer the curve is, the more the driver tends to occupy the opposite lane, and the second cut will occur. Because of the inertia, the car may be too close to the outside of the bend, and the driver needs to correct the track, but too much correction will cause the vehicle to intrude into the opposite lane again; the smaller the radius of the flat curve, the more serious the encroachment of the track on the lane. When the turning angle of the left turn is medium, the migration rate of the trajectory is the largest, the greater the angle of the right turn, the greater the fluctuation of the trajectory migration rate, and the behavior of serious encroachment on the driveway will occur in the turning back curve, and the encroachment degree of the right turn will be higher.
【作者單位】： 重慶交通大學山地城市交通系統(tǒng)與安全重慶市重點實驗室;西南交通大學交通運輸與物流學院;
【基金】：“十二五”國家科技支撐計劃項目(2014BAG01B01) 交通運輸部應(yīng)用基礎(chǔ)研究項目(2015 319 814 050) 重慶市科技計劃項目(cstc2014jcyjA30024)
【分類號】：U491.25

【相似文獻】

相關(guān)期刊論文 前6條

1 駱雪忠;黃起金;凌峰;;破解貨車行駛軌跡突變之謎[J];安全與健康;2009年04期

2 李洪武;行駛軌跡在道路交通管理中的應(yīng)用[J];現(xiàn)代交通管理;1994年02期

3 王華;嚴fg;任佳;鮑強;;基于LBS的高速路網(wǎng)車輛行駛軌跡監(jiān)控系統(tǒng)設(shè)計[J];重慶交通大學學報(自然科學版);2010年02期

4 毛嘉川;;彎道寬度對車輛行駛軌跡和速度的影響規(guī)律[J];交通科學與工程;2011年04期

5 張潤生;黃小云;劉晶;馬雷;韓睿;趙玉勤;楊新紅;;基于視覺復雜環(huán)境下車輛行駛軌跡預(yù)測方法[J];機械工程學報;2011年02期

6 ;[J];;年期

相關(guān)碩士學位論文 前4條

1 馮超;車輛行駛軌跡特征參數(shù)重構(gòu)的研究[D];長安大學;2015年

2 宋陽;車輛異常行駛軌跡模型[D];長安大學;2013年

3 羅驍;山區(qū)公路典型行駛軌跡特性及駕駛行為模式研究[D];重慶交通大學;2015年

4 康建設(shè);山區(qū)旅游公路連續(xù)彎道路段交通安全對策分析[D];福建農(nóng)林大學;2014年

，

本文編號：1888347