基于特征分析的城市道路短时交通流量预处理  

Short-term Traffic Flow Pretreatment of Urban Highway Based on Characteristic Analysis

作　　者：杨兆升[1] 冯金巧[1] 张林[1] 申丽萍[1] 

机构地区：[1]吉林大学,长春130022

出　　处：《交通与计算机》2008年第1期10-14,共5页Computer and Communications

基　　金：国家863科技攻关项目资助(批准号:2006AA11Z228)

摘　　要：对城市道路交通流量数据进行了特征分析,规划了数据预处理过程中的3大内容:故障数据的识别与修补、数据消噪处理和数据平滑处理。最后基于实际采集数据,对信息预处理的各个步骤进行了数据分析和算法试验。实证结果表明,该预处理过程正确、合理,可以很好地保证输入数据质量。The characteristics of short-term traffic flow data of urban highway were analyzed. Based on it, three aspects of traffic flow pretreatment were programmed including identifying and modifying abnormal data, and de-noising and smoothing analysis of normal data based on the analysis. Then, the traffic flow pretreatment method was tested with the collected traffic volume data. The conclusion shows that the new pretreatment process is applicable to the real condition and has a good result.

关 键 词：ITS 城市道路 交通流量 特征分析 预处理 

分 类 号：U491[交通运输工程—交通运输规划与管理]