摘要
文章从路段行程时间出发分析路网连通可靠性,将速度密度关系引入路段连通可靠度概念,并提出了将安德伍德(Underwood)指数模型和格林伯格(Grenberg)对数模型引入路段连通可靠度的概念描述中,同时结合理念,构建一种切实可行的路网连通可靠度研究方法,提高路段连通可靠度计算结果的代表性。
Starting from the travel time of road section,this article introduced the reliability of road network connectivity, introduced the velocity-density relation into the concept of road-section connectivity reliability,and proposed the introduction of Underwood index model and Grenberg logarithmic model into the road-section connectivity reliability,then, combined with the concept of series-parallel system, it built a practical and feasible road network connectivity reliability research method to improve the representation of road section connectivity reliability calculation result.
作者
李演洪
LI Yan-hong(Southwest Jiaotong University, Chengdu, Sichuan, 610031)
出处
《西部交通科技》
2017年第5期85-89,共5页
Western China Communications Science & Technology
关键词
路段行程时间
速度密度关系
串并联系统
路网连通可靠度
Road-section travel time
Velocity-density relation
Series-parallel system
Road network connectivity reliability
