PETRI: A PARALLEL ENVIRONMENT FOR A REAL-TIME TRAFFIC MANAGEMENT AND INFORMATION SYSTEM

Modern Traffic Management Systems provide the traffic engineer with information on current and forecasted traffic conditions, traffic conflicts, etc., required to support a rational decision making process. That information is the outcome of a computing process whose inputs are the raw traffic data supplied in real-time by various data sources, and whose components are complex algorithmic procedures implementing numerically models for traffic assignment, O/D estimation, traffic simulation, etc., which imply a heavy computational overhead. PETRI is a prototype currently being tested in Barcelona, resorting to parallelize these components in order to achieve the expected performance for real-time applications. This paper describes the architecture, the parallel approach taken, its implementation on a shared memory environment, and the preliminary results of testing the system on Barcelona's Ring Roads.

• Supplemental Notes:
  • Full conference proceedings available only on CD.
• Corporate Authors:

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036
• Authors:
  • BARCELO, J
  • CASAS, J
  • Codina, E
  • Fernandez, A
  • Ferrer, J L
  • Garcia, D
  • Grau, R
• Conference:
  • Intelligent Transportation: Realizing the Future. Abstracts of the Third World Congress on Intelligent Transport Systems
  • Location: Orlando, Florida
  • Date: 1996-10-14 to 1996-10-18
• Publication Date: 1996

Language

• English

Media Info

• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Architecture; Computers; Decision making; Estimating; Estimation theory; Highway traffic control; Information systems; Intelligent transportation systems; Origin and destination; Parallel processing; Psychological conflict; Real time control; Traffic assignment; Traffic forecasting; Traffic simulation
• Uncontrolled Terms: Computer systems
• Old TRIS Terms: Advanced systems; Real-time systems
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00741624
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 22 1997 12:00AM