摘要
针对 ITS的开发 ,建立了分析交通流突变的变点统计方法。依据交通流理论 ,结合均值变点模型 ,对突变存在与否的检验、变点个数的判定以及变点搜索的最小二乘法等问题进行了详细论述。最后利用英国南安普敦市的实际数据对上述算法进行了标定 ,并给出模型应用的实例 。
In order to develop ITS, a statistical method of change point to analyze traffic flow breakdown is established in this paper. Based on traffic flow theory, the hypothesis testing problem of the existence of change points, the decision of the number of change points, and the least square algorithm to search change points are discussed. In this paper, the method is calibrated with the data of the city of Southampton, UK. A real example of application is also given to test the effectiveness of the method.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2002年第4期69-74,共6页
China Journal of Highway and Transport
基金
国家自然科学基金项目 ( 79870 0 4 4)
教育部高等学校骨干教师资助计划 ( 980 )
