Modeling of Spacing Distribution of Queuing Vehicles at Signalized Junctions Using Random-Matrix Theory  

作　　者：靳雪翔 苏岳龙 张毅 魏铮 李力 

机构地区：[1]Department of Automation,Tsinghua University

出　　处：《Tsinghua Science and Technology》2009年第2期252-254,共3页清华大学学报（自然科学版（英文版）

基　　金：Partly supported by the National Key Basic Research and Development(973) Program of China(No.2006CB705506);the National High-Tech Research and Development(863) Program of China (Nos.2006AA11Z229,2007AA11Z222);the National Natural Science Foundation of China(Nos.60374059,50708055)

摘　　要：The modeling of headway/spacing between two consecutive vehicles in a queue has many applications in traffic flow theory and transport practice. Most known approaches have only studied vehicles on freeways. This paper presents a model for the spacing distribution of queuing vehicles at a signalized junction based on random-matrix theory. The spacing distribution of a Gaussian symplectic ensemble （GSE） fits well with recently measured spacing distribution data. These results are also compared with measured spacing distribution observed for the car parking problem. Vehicle stationary queuing and vehicle parking have different spacing distributions due to different driving patterns.The modeling of headway/spacing between two consecutive vehicles in a queue has many applications in traffic flow theory and transport practice. Most known approaches have only studied vehicles on freeways. This paper presents a model for the spacing distribution of queuing vehicles at a signalized junction based on random-matrix theory. The spacing distribution of a Gaussian symplectic ensemble （GSE） fits well with recently measured spacing distribution data. These results are also compared with measured spacing distribution observed for the car parking problem. Vehicle stationary queuing and vehicle parking have different spacing distributions due to different driving patterns.

关 键 词：spacing distribution queuing vehicles Coulomb gas Gaussian symplectic ensemble （GSE） 

分 类 号：O242.1[理学—计算数学]