智能交通系统模型的研究和算法分析  

The Study and Algorithm Analysis on Model of Intelligent Transportation Systems

作　　者：栾硕[1] 胡东方[1] 肖军[2] 

机构地区：[1]北京交通大学交通运输学院,北京100044 [2]辽宁石油化工大学信息与控制工程学院,辽宁抚顺113001

出　　处：《鞍山师范学院学报》2007年第6期69-72,共4页Journal of Anshan Normal University

摘　　要：阐述了智能交通系统的基本组成和功能,给出了智能交通系统的基本模型.针对传统智能交通系统中求取路段平均速度和平均旅行时间的算法进行了探讨和改进,引入流量融合技术对路段的平均速度进行估测,估测精度得到了提高.通过构造一个时间相关的协方差矩阵来描述各路段之间的相关性,提高了算法的全面性和准确性.This paper describes the fundamental structure and functions of an intelligent transportation system(ITS) by introducing a basic model of ITS.It discusses and improves the algorithm of obtaining average speed and average traveling time on road sections.Furthermore,it introduces the traffic capacity control technology to more accurately estimate the average speed on different road sections.A covariance matrix with time correlated has been constructed to depict the relevance among road sections in order to improve the integrity and accuracy of the algorithm.

关 键 词：智能交通系统 旅行时间 协方差矩阵 估算算法 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]