APP下载

快速路交织区交通换道行为特性研究分析

2021-08-23梁春岩谷成泽

时代汽车 2021年16期

梁春岩 谷成泽

摘 要:为探索城市快速路交织区交通运行特性,实现交织区交通的快速高效运行,以快速路匝道出口交织区作为对象,以长春市的调查数据为基础,分析了交通换道特性,建立了交织区交通换道数与流量和交通密度的关系模型。研究结果表明,换道次数随着交通量的增加而增加,而随着密度的增加,呈现先增加后减小的趋势。本文研究成果可以为城市快速路匝道出口交织区的理论研究提供方法参考,位对交织区的管理与控制提供理论基础。

关键词:城市快速路 交织区 交通换道 交通流量 交通密度

Research and Analysis of Traffic Lane Changing Behavior Characteristics in Expressway Interweaving Area

Liang Chunyan Gu Chengze

Abstract:To explore the traffic operation characteristics of the interweaving area of urban expressways and realize the fast and efficient operation of the interweaving area, the interweaving area of the expressway ramp exit is taken as the object, and the traffic changing characteristics are analyzed based on the survey data of Changchun City, and the model of the relationship between the number of traffic lane changes and the flow and traffic density in the interweaving area is established. The research results show that the number of lane changes increase with the increase of traffic volume, and with the increase of density, and it shows a trend of first increasing and then decreasing. The research results can provide a method reference for the theoretical study of the interweaving area of urban expressway ramp exits, and provide a theoretical basis for the management and control of the interweaving area.

Key words:urban expressway, weaving area, traffic lane change, traffic flow, traffic density

1 引言

随着经济的迅速发展,城市化建设步伐的加速,其中最为首要的就是城市快速路的建设。另一方面,随着汽车保有量在逐渐增加,致使城市内的交通日益拥堵。为了缓解城市交通拥堵,提高城市内部运输效率,充分发挥城市快速路作用,对快速路交织区的交通特性进行研究,掌握其运行规律,对提高交织区交通运行效率有深远意义。国内外学者对交织区进行了多方面的研究。臧晓冬等[1]研究在快速路互通立交交织区的不足,提出车道变换次数的预测方法,建立了城市快速路互通立交交织区交织速度和非交织速度预测模型。郑弘等[2]建立了基于需求产生的判断性换道模型与常规强制性换道结合,形成完整的交织区换道模型。柳雪丽等[3]基于感应控制理论和方法,对快速路与常规道路衔接区域的协调控制方法进行优化,使快速路系统的运行效率最优。……

登录APP查看全文