High-Resolution Event-Based Data at Diamond Interchanges: Performance Measures and Optimization of Ring Displacement

Signalized diamond interchanges are unique pairs of intersections characterized by interlocked left turns and relatively close spacing between ramps. A diamond interchange has four external entry points (origins) and four external exit points (destinations). Examination of the external origin–destination paths and evaluation of their impact on the interior storage and progression are critical for operating a diamond interchange effectively. This paper describes a series of performance measures derived from high-resolution signal controller data that can be used to (a) assess the quality of progression of the interior movements qualitatively and quantitatively and (b) optimize the internal offset to improve traffic flows within the interchange. Additional performance measures for identifying internal and ramp queuing are discussed. The integration of graphical performance measures into controller front panel displays and central systems is recommended to assist engineers in tuning and maintaining efficient operation of diamond interchanges.

• Record URL:
  • https://doi.org/10.3141/2439-02
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=High-Resolution+Event-Based+Data+at+Diamond+Interchanges%3a+Performance+Measures+and+Optimization+of+Ring+Displacement&author=A.+Hainen&author=A.+Stevens&author=R.+Freije&author=C.+Day&author=J.+Sturdevant&author=D.+Bullock&publication_year=2014
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309295260
• Authors:
  • Hainen, Alexander M
  • Stevens, Amanda L
  • Freije, Richard S
  • Day, Christopher
  • Sturdevant, James R
  • Bullock, Darcy M
• Publication Date: 2014

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 12–26
• Monograph Title: Traffic Signal Systems 2014, Volume 2
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2439
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Diamond interchanges; Offsets (Traffic signal timing); Origin and destination; Performance measurement; Traffic signal controllers; Vehicle detectors; Visualization
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Pedestrians and Bicyclists; Safety and Human Factors; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01520494
• Record Type: Publication
• ISBN: 9780309295260
• Report/Paper Numbers: 14-0298
• Files: PRP, TRIS, TRB, ATRI
• Created Date: Mar 29 2014 11:16AM