摘要
城市汽车保有量的增加,加大了城市公路主干道的交通压力。主干道是城市道路网络的骨架,评估和分析主干道的交通运行状况是交通运营领域研究的重点。主干道存在很多信号控制的交叉口,需选取具有表征间断交通流特性的评价指标。本文选取行程车速、饱和度和延误时间比3个评价指标,基于模糊综合算法,建立了主干道交通运行状况评价分析系统。以包头市青山区主干道为例进行实际分析,验证评价模型的科学性和合理性,试验结果表明,输出结果与主干道交通实际运行状况基本一致。
The increase of urban car ownership has increased the traffic pressure on main roads. Trunk road is the skeleton of urban road network. How to evaluate and analyze the traffic condition of trunk road is the focus of traffic operation research. There are many signal-controlled intersections in trunk roads, so evaluation indexes representing the characteristics of intermit- tent traffic flow should be selected. In this paper, three evaluation indexes including travel speed, saturation and delay time ratio are selected to establish an evaluation and analysis system for the traffic condition of main road based on fuzzy comprehen- sive algorithm. Finally, take the main road in qingshan district of baotou city as an example for practical analysis to verify the scientificity and rationality of the evaluation model, and the output results are basically consistent with the actual traffic condi- tion of the main road.
作者
连星宇
姜文龙
LIAN Xingyu;JIANG Wenlong(People’s Public Security University of China,School of Traffic Management,Beijing 100038,China)
出处
《现代交通技术》
2020年第1期54-59,共6页
Modern Transportation Technology
关键词
主干道
评价指标
模糊综合算法
运行状况
main road
evaluation index
fuzzy synthesis algorithm
operating condition
