A PCI-Based Evaluation Method for Level of Services for Traffic Operational Systems

Author

Tang, Shuming ; Wang, Fei-Yue

Author_Institution

Inst. of Autom., Shandong Acad. of Sci., Jinan

Volume

7

Issue

4

fYear

2006

Firstpage

494

Lastpage

499

Abstract

This paper proposes a new measure to evaluate level of services (LOS) for traffic operations based on process capability indices (PCIs). First, a brief introduction to the concept of PCIs and the characteristics of traffic flows is presented and followed by a discussion on the appropriateness of applying PCIs to measure the quality of traffic flows. Then, several case studies are conducted to investigate the effectiveness of the proposed new measure for traffic LOS, and the results indicate that speed and density are the most appropriate parameters for this purpose. Finally, this paper concludes with remarks on future research directions

Keywords

process capability analysis; road traffic; statistical process control; traffic information systems; level of services; process capability indices; statistical process control; traffic flow; traffic operational systems; Automation; Communication system traffic control; Delay effects; Density measurement; Intelligent systems; Intelligent transportation systems; Laboratories; Road vehicles; State estimation; Velocity measurement; Highway capacity; level of services (LOS); process capability indices (PCIs); traffic flow;

fLanguage

English

Journal_Title

Intelligent Transportation Systems, IEEE Transactions on

Publisher

ieee

ISSN

1524-9050

Type

jour

DOI

10.1109/TITS.2006.883935

Filename

4019450