CASE STUDY INVESTIGATION OF TRAFFIC CIRCLE CAPACITY

A capacity analysis of Latham Circle, a traffic circle in New York State, is presented. From videotapes, 1-min observations of entry flow are correlated with simultaneous observations of circulating flow. Values for the minimum acceptable gap, minimum circulating headway, move-up time, and so forth are calculated so that the predictions of various capacity equations, established abroad, can be compared and contrasted with the traffic circle's performance. It is found not only that the observed parameter values closely match those from abroad, but also that several of the equations appear to provide reasonable estimates of capacity. Because of this, these relationships may be adaptable to U.S. conditions without significant recalibration or reformulation.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1994/1457/1457-014.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=CASE+STUDY+INVESTIGATION+OF+TRAFFIC+CIRCLE+CAPACITY&author=G.+List&author=S.+Leong&author=Y.+Embong&author=A.+Naim&author=J.+Conley&publication_year=1994
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309061008
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1457, Part 2, Traffic Flow and Capacity. 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:
  • List, George
  • Leong, Siew
  • Embong, Yusri
  • Naim, Azizan
  • Conley, Jennifer
• Publication Date: 1994

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 118-126
• Monograph Title: Part 1: 1994 TRB Distinguished Lecture, Adolf D May; Part 2: Traffic flow and capacity
• Serial:
  • Transportation Research Record
  • Issue Number: 1457
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Alternatives analysis; Case studies; Equations; Field studies; Forecasting; Gap acceptance; Headways; Highway capacity; Traffic circles; Videotapes
• Old TRIS Terms: Field observation
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00677654
• Record Type: Publication
• ISBN: 0309061008
• Files: TRIS, TRB
• Created Date: May 11 1995 12:00AM