混合车流对公路速度分布的影响规律研究  

Research on the influence law of mixed traffic flow to highway speed distribution

作　　者：张晓丽 林丽芳 孙艳杰 Zhang Xiaoli;Lin Lifang;Sun Yanjie(Zhongke Luheng Engineering Design Co.,Ltd.,Taiyuan030000,China)

机构地区：[1]中科路恒工程设计有限公司,山西太原030000

出　　处：《山西建筑》2022年第9期136-139,共4页Shanxi Architecture

摘　　要：针对二级公路车型比例复杂,设计车道数、宽度多样,限速管控复杂的情况,利用VISSIM仿真软件构建结构模型,研究混合车流对公路速度分布产生的影响。首先,确定对公路速度产生影响的因素;其次以不同中型车占比为自变量,以长度500 m~900 m、流量200 pcu/h~700 pcu/h为对比条件,建立相应的仿真模型,并以5种不同的随机因子的结果进行对比分析,确保模型的有效性;最后,将结果进行分类分析归类,总结规律特点,提出在公路的规划、工程可行性研究、设计阶段的相关建议。In view of the situation of complex proportion of class Ⅱ Highway models,the number of designed lanes,various widths and complex speed limit control. The structural model was constructed by VISSIM simulation software to research the influence of mixed vehicle flow to highway speed distribution. Firstly,determined the factors that affect the highway speed;Secondly,taking the proportion of different medium-sized vehicles as the independent variable,taking the length of 500 m ~ 900 m and the flow of 200 pcu/h ~ 700 pcu/h as the comparison conditions,established the corresponding simulation model,compared and analyzed the results of five different random factors to ensure the effectiveness of model;Finally,classified,analyzed and classified the results are,established the laws and characteristics,put forward relevant suggestions in the highway planning,rngineering feasibility research and design stage.

关 键 词：混合车流 二级公路 速度分布 VISSIM仿真 

分 类 号：U491.112[交通运输工程—交通运输规划与管理]