摘要
探讨了影响双向八车道高速公路车辆运行规则的流量、客货车比以及超车方向等因素,基于流量、平均速度和速度标准差变量构建安全函数,基于流量、速度和时间变量构建效率函数,并从安全与效率平衡角度出发,通过微观交通仿真软件VISSIM对不同流量、车道功能划分及超车方向组合而成的不同交通条件下的车辆运行规则进行仿真,得到了适应于不同交通条件的双向八车道高速公路车辆最佳运行规则,分析了超车方向对车辆运行安全和效率的影响。
In the paper the factors that affect vehicles operating rules on eight-lane expressway are analyzed such as traffic flow,passenger car and freight car ratio,overtaking directions and so on,and then the efficiency function is built based on traffic flow,speed and time,and from the balance of safety and efficiency perspective,the vehicle driving rules under different situations by changing traffic flow,lane function division and overtaking directions are simulated by the microscopic traffic simulation software VISSIM,and the optimum eight-lane expressway vehicle driving rules under different situations are obtained,and the influence of overtaking directions on the vehicle driving safety and driving efficiency is analyzed.
出处
《公路》
北大核心
2017年第10期149-155,共7页
Highway
基金
陕西省交通运输厅科技项目
项目编号13-36R
