基于停车线位置的左转车辆行驶轨迹仿真模型

doi:10.3778/j.issn.1002-8331.2009.09.007

计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (9): 24-27.DOI: 10.3778/j.issn.1002-8331.2009.09.007

基于停车线位置的左转车辆行驶轨迹仿真模型

南春丽¹,张生瑞²,严宝杰²

1.长安大学信息工程学院，西安 710064
2.长安大学特殊地区公路工程教育部重点实验室，西安 710064

收稿日期:2008-12-09 修回日期:2009-01-04 出版日期:2009-03-21 发布日期:2009-03-21
通讯作者: 南春丽

Traveling trace simulation model for left turn vehicles based on stop line

NAN Chun-li¹,ZHANG Sheng-rui²,YAN Bao-jie²

1.School of Information Engineering，Chang’an University，Xi’an 710064，China
2.Key Laboratory for Special Area Highway Engineering of Ministry of Education，Chang’an University，Xi’an 710064，China

Received:2008-12-09 Revised:2009-01-04 Online:2009-03-21 Published:2009-03-21
Contact: NAN Chun-li

摘要/Abstract

摘要： 以信号交叉口左转车辆为研究对象，根据数值逼近和几何学原理，建立了停车线位置改变前后两种不同的左转车辆行驶轨迹仿真模型。对于当前交通状态，采用最佳平方逼近和Chebyshev近似原理的方法，建立了左转车辆行驶轨迹的三次抛物线模型，并通过实例予以验证；对于停车线位置改变后的未来状态，给出了直线—回旋线—回旋线—直线组合的左转车辆行驶轨迹模型。进一步，建立了停车线位置与临界半径函数关系线性模型，使回旋线参数计算更为简单。仿真结果表明，所建模型较好地逼近了相应交通状态。

关键词: 仿真建模, 左转车辆行驶轨迹仿真模型, 数值逼近, 回旋线

Abstract: Taking the left turn vehicles at signalized intersection as research object，this paper presents two kinds of traveling trace simulation model for left turn vehicles based on numerical approximation and geometry principle.For current traffic state，cubic parabolic model is built by using best approximation in the mean and Chebyshev approximation，and tested by an example.For the future situation after stop line changed，the line-clothoid-clothoid-line model is presented.Further more，this paper also deduces a linear model about the relationship of stop line position and critical radius，calculating parameter of clothoid easier.The simulation program indicates that models built approximate the real traffic situation better.

Key words: simulation modeling, traveling trace simulation model for left turn vehicle, numerical approximation, clothoid

南春丽¹,张生瑞²,严宝杰². 基于停车线位置的左转车辆行驶轨迹仿真模型[J]. 计算机工程与应用, 2009, 45(9): 24-27.

NAN Chun-li¹,ZHANG Sheng-rui²,YAN Bao-jie². Traveling trace simulation model for left turn vehicles based on stop line[J]. Computer Engineering and Applications, 2009, 45(9): 24-27.

[1]	孙丽珺^1,2,王立宏³,逯昭义¹. 一种竞争—冲突淘汰存取方式的仿真建模研究[J]. 计算机工程与应用, 2008, 44(14): 27-30.
[2]	贾晨辉张浩陆剑峰. 离散制造系统规划与仿真建模研究[J]. 计算机工程与应用, 2007, 43(3期): 242-242.

基于停车线位置的左转车辆行驶轨迹仿真模型

Traveling trace simulation model for left turn vehicles based on stop line

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