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Experiences in Deploying a Wireless Mesh Network Testbed for Traffic Control

Author

  • Kun-chan Lan
  • Zhe Wang
  • Mahbub Hassan
  • Tim Moors
  • Rodney Berriman
  • Lavy Libman
  • Maximilian Ott
  • Björn Landfeldt
  • Zainab Zaidi

Summary, in English

Wireless mesh networks (WMN) have attracted consider- able interest in recent years as a convenient, flexible and low-cost alternative to wired communication infrastructures in many contexts. However, the great majority of research on metropolitan-scale WMN has been centered around max- imization of available bandwidth, suitable for non-real-time applications such as Internet access for the general public. On the other hand, the suitability of WMN for mission- critical infrastructure applications remains by and large un- known, as protocols typically employed in WMN are, for the most part, not designed for real-time communications. In this paper, we describe the Smart Transport and Roads Communications (STaRComm) project at National ICT Aus- tralia (NICTA), which sets a goal of designing a wireless mesh network architecture to solve the communication needs of the traffic control system in Sydney, Australia. This sys- tem, known as SCATS (Sydney Coordinated Adaptive Traf- fic System) and used in over 100 cities around the world, connects a hierarchy of several thousand devices — from in- dividual traffic light controllers to regional computers and the central Traffic Management Centre (TMC) — and places stringent requirements on the reliability and latency of the data exchanges. We discuss our experience in the deploy- ment of an initial testbed consisting of 7 mesh nodes placed at intersections with traffic lights, and share the results and insights learned from our measurements and initial trials in the process.

Publishing year

2007

Language

English

Pages

17-28

Publication/Series

Computer Communication Review

Volume

17

Issue

5

Document type

Journal article

Publisher

Association for Computing Machinery (ACM)

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 0146-4833