Smoothing Vehicular Traffic Flow with VGrid

In this paper the authors explore distributed controls to smooth traffic and reduce traffic incidents. This is achieved with the assistance of VGrid: an ad hoc networking and computing grid formed by leveraging inter-vehicle wireless communications. In addition to exchanging data between vehicles, VGrid actively uses pertinent data to perform computations for solving traffic-related problems. Through the use of real-time position and velocity information exchanged over the network, two distributed traffic smoothing algorithms, accident alert and variable speed limited control, are implemented in a VGrid environment. Using an extensive simulation tool which incorporates both a comprehensive wireless network model and a realistic vehicle mobility model, the authors show that these VGrid based distributed control algorithms reduce vehicle speed variance under both incident-free and incident conditions.


  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 14p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01152220
  • Record Type: Publication
  • Report/Paper Numbers: 10-4077
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 12:06PM