【摘要】 交通流数据常见问题分为两类:数据缺失和数据异常。针对这些问题,分析了数据问题的原因,研究了北京市数据采集的方法,提出了故障数据的判定方法,最后结合北京市的交通流数据的常见问题进行实例分析,为以后有关交通数据的研究提供借鉴。更多还原

【Abstract】 Common problems of traffic flow data are data loss and data exception,in view of which,the paper analyzes the causes behind these problems and,after studying the data collection method used in Beijing traffic system,proposes the method for the judgement of faulty data.At last,an empirical study on the common problems of traffic flow data in the practice of Beijing traffic system is carried out,with hopes to provide reference for future studies on traffic data.更多还原