基于公交GPS数据的交叉口信号配时参数估计  

Signal timing estimation for intersections using bus GPS data

作　　者：孙棣华[1,2] 杨陈成 廖孝勇[1,2] 赵敏[1,2] 程森林[1,2] SUN Di-hua, YANG Chen-cheng, LIAO Xiao-yong, ZHAO Min, CHENG Sen-lin(1. Key Laboratory of Dependable Service Computing in Cyber Physical Society of Ministry of Education, Chongqing University, Chongqing 400030, China~ 2. School of Automation, Chongqing University, Chongqing 400030, Chin)

机构地区：[1]重庆大学信息物理社会可信服务计算教育部重点实验室,重庆400030 [2]重庆大学自动化学院,重庆400030

出　　处：《控制与决策》2018年第4期724-730,共7页Control and Decision

基　　金：国家自然科学基金项目(61573075);重庆市应用开发计划重点项目(cstc2014yykf B30003);Ford China University Research Programs(2014-3QQ9R)

摘　　要：为了利用公交GPS数据估计交叉口信号配时参数,提出一种改进插值法来估计交叉口单车行程时间;通过先聚类再分类划分信号周期,给出采用停车线附近的GPS数据序列估计周期边界及周期时长的方法;结合周期边界估计结果,提出一种新的红灯时长估计方法.在不同交通流量下对估计方法进行模拟及现场测试,结果表明,基于公交GPS数据的信号配时参数估计方法适用于不同交通流量,且估计效果明显优于现有方法.Focusing on the signal timing estimation for intersections through the GPS data from buses, an improved interpolation method is proposed to estimate the travel time for individual vehicles at intersection. A signal cycle is divided through clustering followed by classification. By sing GPS data sequence near the stop line, a method for estimating cycle boundary and cycle length is given. Combined with the results of cycle boundary estimation, a new method for estimating red time is proposed. The simulation and field tests for the estimation method are carried out under different traffic flows. Results show that the signal timing estimation method using bus GPS data is applicable for different traffic flows, and the estimation effect is obviously better than existing methods.

关 键 词：交叉口 公交GPS数据 信号配时参数估计 插值法 K均值聚类 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]