摘要
以现场实测道路交通数据为基础,对VISSIM微观仿真模型进行标定及有效性检验,以出口速度及流量为评价指标研究不同交通流量组合下附加车道渠化长度的变化规律.研究表明,合理的渠化长度可改善出口交通状况,提高辅路及出口通行能力,建议出口附加车道渠化长度取值20 m.
Based on the field survey road traffic datum, micro-simulation software-VISSIM was calibrated and validated. The velocity and volume of exit was utilized as evaluating indicators to study the varying laws of the extra lane＇ s channelization length in the case of the different traffic flow combination. The results show that the appropriate channelization length of extra lane is able to improve the traffic status and enhance their capacity. The reasonable channelization length is recommended as 20 m.
出处
《内蒙古科技大学学报》
CAS
2008年第4期373-376,共4页
Journal of Inner Mongolia University of Science and Technology
关键词
交通工程
渠化长度
附加车道
交通仿真
城市快速路
出口
辅路
Traffic engineering
channelization length
extra lane
traffic simulation
urban expressway
exit
side road
