集散型一级公路平交出口与互通出口最小净距  

Minimum Clear Distance Between Intersection Exit and Interchange Exit of Distributed First-class Highway

作　　者：周乾 卢涛 佘明星 刘娟[3] 张迎春 雒莎莎 潘兵宏[3] ZHOU Qian;LU Tao;SHE Mingxing;LIU Juan;ZHANG Yingchun;LUO Shasha;PAN Binghong(Hunan Provincial Communications Planning,Survey and Design Institute Co.Ltd.,Changsha 410219,China;Poly Changda Engineering Co.Ltd.,Guangzhou 511400,China;College of Highway,Chang'an University,Xi'an 710064,China;Beijing Municipal Engineering Design and Research Institute Co.Ltd.,Beijing 100082,China)

机构地区：[1]湖南省交通规划勘察设计院有限公司,长沙410219 [2]保利长大工程有限公司,广州511400 [3]长安大学公路学院,西安710064 [4]北京市市政工程设计研究总院有限公司,北京100082

出　　处：《北京工业大学学报》2024年第9期1122-1134,共13页Journal of Beijing University of Technology

基　　金：中交科技基金项目([2018]05号)。

摘　　要：基于集散型一级公路平交较多且互通数量不断增加的现状,为控制集散型一级公路平交出口与互通出口净距,保障其交通流转换功能的实现,增强对实际工程设计的指导,首次界定了集散型一级公路平交出口与互通出口净距的范围,通过分析平交直行、左转及右转车辆经互通出口驶离主线的过程,考虑最不利行驶条件,建立了平交出口与互通出口净距计算模型;通过调查车辆运行速度、换道轨迹及车头时距,明确了该范围的交通流特征;结合驾驶人心、生理特性和实测交通流参数,提出了最小净距建议值。研究成果可补充现有研究的不足,为集散型一级公路相关设计提供参考。Based on the situation that there are more intersections and interchanges on the distributed first-class highway,to control the clear distance between intersection exit and interchange exit of distributed first-class highway,ensure the realization of the traffic flow conversion function of it,and enhance the guidance to the actual engineering design,the clear distance range between intersection exit and interchange exit of distributed first-class highway was defined for the first time,by analyzing the process of straight,left turn,and right turn vehicles departing from the main line through the interchange exit,the calculation model for the clear distance between intersection exit and interchange exit was established by considering the most unfavorable driving conditions.The traffic flow characteristics were clarified by measuring the vehicle speed,travel trajectory,and vehicle headway.Combined with the driver's heart,physiological characteristics,and measured traffic flow parameters,the minimum clear distance recommended value was calculated.The research results can supplement the shortcomings of the existing research and provide reference for the relevant design of distributed first-class highway.

关 键 词：交通工程 集散型一级公路 平面交叉 互通式立体交叉 出口 净距 

分 类 号：U491[交通运输工程—交通运输规划与管理]