快速路入口匝道车辆汇入位置的分布特征分析
|
摘要
为研究快速路入口匝道车辆的汇入行为,首先对交织区全范围的汇入位置进行采集,然后通过聚类分析将汇入行为分为前段汇入、中段汇入、末段汇入3种.采用5种分布模型对各类行为的汇入位置进行拟合,通过最大似然估计法确定模型参数并进行Kolmogorov-Smirnov拟合优度检验,发现前段汇入符合Johnson SB模型,中段汇入符合Log-Logistic模型,末段汇入符合Gen.extreme.value模型.最后,建立汇入位置分布与主路外侧车道密度、匝道车辆合并速度间的关系模型.敏感性分析结果表明,同一类别的汇入位置分布受密度、速度的影响显著.
In this paper,first,a field survey was conducted to collect merging information of on-ramp vehicles at urban expressway.Next,a clustering analysis was used to divide merging maneuvers into three clusters,namely the forepart,the midpiece and the endpiece. Then,five distribution models were selected to fit the distribution of merging positions in each cluster.Moreover,model parameters were determined by means of maximum likelihood estimation and the goodness of fit to these models was also given via a Kolmogorov-Smirnov test.It is found that the Johnson SB model obtains the best result in the forepart cluster,the Log-Logistic model is most suitable for the midpiece merging maneuvers,and the Gen.extreme.value model provides the best fit for the endpiece cluster.At last,a regression model was proposed to describe the relationship among the distribution of merging positions,the density of the shoulder lane and the merging velocity of an on-ramp vehicle.The results of sensitivity analysis show that both the density and the velocity significantly affect the distribution of merging position in the same cluster.
In this paper,first,a field survey was conducted to collect merging information of on-ramp vehicles at urban expressway.Next,a clustering analysis was used to divide merging maneuvers into three clusters,namely the forepart,the midpiece and the endpiece. Then,five distribution models were selected to fit the distribution of merging positions in each cluster.Moreover,model parameters were determined by means of maximum likelihood estimation and the goodness of fit to these models was also given via a Kolmogorov-Smirnov test.It is found that the Johnson SB model obtains the best result in the forepart cluster,the Log-Logistic model is most suitable for the midpiece merging maneuvers,and the Gen.extreme.value model provides the best fit for the endpiece cluster.At last,a regression model was proposed to describe the relationship among the distribution of merging positions,the density of the shoulder lane and the merging velocity of an on-ramp vehicle.The results of sensitivity analysis show that both the density and the velocity significantly affect the distribution of merging position in the same cluster.
引文
[1] 城市快速路设计规程:CJJ129-2009 [S].
[2] QU Z W,CAO N B,CHEN Y H,et al.Capacity model of on-ramp merging section of urban expressway [J].Journal of Southeast University(English Edition),2016.32(2):226- 232.
[3] LONG K,YANG X,ZHENG J.Research on traffic management for on-street intersection connecting to urban expressway off-ramps [C]//Proceedings of International Symposium on Transportation and Development Innovative Best Practices 2008.[S.l.]:[s.n.],2008:350- 356.
[4] TROUBECK R J,KAKO S.Limited priority merge at unsignalized intersections [J].Transportation Research Part A:Policy & Practice,1999,33:291- 304.
[5] POLUS A,LIVNEH M.Vehicleflow characteristics on acceleration lanes [J].Journal of Transportation Engineering,1985,111(6):595- 606.
[6] AHAMMED M A,HASSAN Y,SAYED T A.Modelingdriver behavior and safety on freeway merging areas [J].Journal of Transportation Engineering,2008,134(9):370- 377.
[7] CALVI A,BLASIIS M R D.Driverbehavior on acceleration lanes:driving simulator study [J].Transportation Research Record Journal of the Transportation Research Board,2011,2248:96- 103.
[8] CHU T D,NAKAMURA H,CHEN P,et al.Quantifying effects of acceleration lane lengths and traffic conditions on merging maneuvers at urban expressway entrances [C]//Proceedings of Eastern Asia Society for Transportation Studies.Taipei:[s.n.],2013:1- 13.
[9] 魏中华,李志,周晨静,等.城市快速路合流区汇入角度对合流区通行能力的影响 [J].公路交通科技,2017,34(5):116- 121.WEI Zhong-hua,LI Zhi,ZHOU Chen-jing,et al.Effect of merge angle on capacity of urban expressway merge area [J].Journal of Highway and Transportation Research and Development,2017,34(5):116- 121.
[10] 江晟,王殿海,曲昭伟,等.交叉口机动车运动轨迹特征提取与标定 [J].西南交通大学学报,2012,47(5):784- 789.JIANG Sheng,WANG Dian-hai,QU Zhao-wei,et al.Extraction and calibration of trajectory characteristics of vehicles at intersections [J].Journal of Southwest Jiaotong University,2012,47(5):784- 789.
[2] QU Z W,CAO N B,CHEN Y H,et al.Capacity model of on-ramp merging section of urban expressway [J].Journal of Southeast University(English Edition),2016.32(2):226- 232.
[3] LONG K,YANG X,ZHENG J.Research on traffic management for on-street intersection connecting to urban expressway off-ramps [C]//Proceedings of International Symposium on Transportation and Development Innovative Best Practices 2008.[S.l.]:[s.n.],2008:350- 356.
[4] TROUBECK R J,KAKO S.Limited priority merge at unsignalized intersections [J].Transportation Research Part A:Policy & Practice,1999,33:291- 304.
[5] POLUS A,LIVNEH M.Vehicleflow characteristics on acceleration lanes [J].Journal of Transportation Engineering,1985,111(6):595- 606.
[6] AHAMMED M A,HASSAN Y,SAYED T A.Modelingdriver behavior and safety on freeway merging areas [J].Journal of Transportation Engineering,2008,134(9):370- 377.
[7] CALVI A,BLASIIS M R D.Driverbehavior on acceleration lanes:driving simulator study [J].Transportation Research Record Journal of the Transportation Research Board,2011,2248:96- 103.
[8] CHU T D,NAKAMURA H,CHEN P,et al.Quantifying effects of acceleration lane lengths and traffic conditions on merging maneuvers at urban expressway entrances [C]//Proceedings of Eastern Asia Society for Transportation Studies.Taipei:[s.n.],2013:1- 13.
[9] 魏中华,李志,周晨静,等.城市快速路合流区汇入角度对合流区通行能力的影响 [J].公路交通科技,2017,34(5):116- 121.WEI Zhong-hua,LI Zhi,ZHOU Chen-jing,et al.Effect of merge angle on capacity of urban expressway merge area [J].Journal of Highway and Transportation Research and Development,2017,34(5):116- 121.
[10] 江晟,王殿海,曲昭伟,等.交叉口机动车运动轨迹特征提取与标定 [J].西南交通大学学报,2012,47(5):784- 789.JIANG Sheng,WANG Dian-hai,QU Zhao-wei,et al.Extraction and calibration of trajectory characteristics of vehicles at intersections [J].Journal of Southwest Jiaotong University,2012,47(5):784- 789.