REALBAND: AN APPROACH FOR REAL-TIME COORDINATION OF TRAFFIC FLOWS ON NETWORKS

An approach is proposed for real-time coordination of signal phase timings for a network. Currently, network coordination is done using off-line methods, such as MAXBAND, PASSER II, and TRANSYT, which are based on average traffic volumes for various movements. On-line approaches such as SCOOT adapt off-line methods by constantly inputting updated average volumes computed from detector data over the "last" decision horizon. REALBAND first identifies platoons and predicts their movement in the network (i.e., their arrival times at intersections, their sizes, and their speeds) by fusing and filtering the traffic data obtained, from various sources, in the last few minutes. An approximate traffic model, APRES-NET, is used to propagate the predicted platoons through the network for a given time horizon. The signals are set so that the predicted platoons are provided appropriate green times to optimize a given performance criterion. If two platoons demanding conflicting movements arrive at an intersection at the same time, then either one or the other will be given priority for green time, or one of them is split to maximize the given measure of performance. This study discusses how such conflicts are resolved and the corresponding algorithmic procedure of REALBAND.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1995/1494/1494-013.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=REALBAND%3A+AN+APPROACH+FOR+REAL-TIME+COORDINATION+OF+TRAFFIC+FLOWS+ON+NETWORKS&author=P.+Dell%27Olmo&author=P.+Mirchandani&publication_year=1995
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1494, Traffic Operations, Traffic Signal Systems, and Freeway Operations 1995. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Dell'Olmo, Paolo
  • Mirchandani, Pitu B
• Publication Date: 1995

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 106-116
• Monograph Title: Traffic operations, traffic signal systems, and freeway operations 1995
• Serial:
  • Transportation Research Record
  • Issue Number: 1494
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Algorithms; Coordination; Forecasting; Network analysis (Planning); Psychological conflict; Real time control; Real time data processing; Traffic platooning; Traffic signal control systems; Traffic signal timing; Traffic simulation
• Uncontrolled Terms: Network flows; Resolution
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00714905
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Dec 13 1995 12:00AM