摘要
为了量化研究交通拥堵的特性,已提出多种不同的交通运行指数(TPI)模型,并在部分城市中得到了应用。分析了现有交通运行指数模型的机理、特征和主要参数。将现有模型分为2类:基于统计的宏观静态运行指数模型和基于实时数据的动态运行指数模型。其中,动态运行指数模型包括基于严重拥堵里程比的指数模型和基于出行时间比的指数模型。以北京市浮动车数据为基础,应用动态运行指数模型测算交通指数,对比分析了2种动态指数模型的一致性、差异性和敏感性。
In order to quantitatively analyze the characteristics of traffic congestions, different models of traffic performanceindex （TPI） have been developed and applied in several cities. This study first analyzes the mechanisms, characteristics,and basic parameters in current models of TPI. Then, divide these models into two categories： macroscopicstatic models based on statistics, and dynamic models based on real-time data. The dynamic models are further divided intotwo sub-categories ： models based on mileage fraction of severe congestions, and models based on travel-time ratio. Byestimating TPI, this study comparatively analyzes the consistency, differences, and the sensitivity of these two sub-categoriesof dynamic models based on the floating car data collected in the City of Beijing.
出处
《交通信息与安全》
2016年第3期1-9,26,共10页
Journal of Transport Information and Safety
基金
国家高技术研究发展计划(863计划)项目(2014AA110301)资助
关键词
城市交通
交通运行指数
拥堵评价
动态运行指数模型
模型对比
urban traffic
traffic performance index
congestion evaluation
dynamic models of TPI
comparison of models
