EXAMINATION OF CONSISTENCY IN SIGNALIZED INTERSECTION CAPACITY CHARTS OF THE HIGHWAY CAPACITY MANUAL

INTERSECTION CAPACITY CHARTS OF THE 1965 HIGHWAY CAPACITY MANUAL HAVE BEEN ANALYZED FOR CONSISTENCY, GIVING MAJOR EMPHASIS TO ACTUAL VS. EXPECTED DIFFERENCES IN RESULTS WHEN CHANGES ARE MADE IN PARKING CONDITIONS AND IN WIDTH OF APPROACH FOR ONE-WAY AND TWO-WAY OPERATION. COMPARISONS ARE ALSO MADE WITH METHODS FOR COMPUTING CAPACITY AS DEVELOPED IN GREAT BRITAIN AND AUSTRALIA. FINDINGS INDICATE THAT THE INDIVIDUAL CURVES IN THE 1965 MANUAL ARE NOT ENTIRELY CONSISTENT WITH EACH OTHER. CONSISTENCY WOULD BE IMPROVED BY SHIFTING TWO OF THE CURVES TO DIFFERENT POSITIONS (TWO-WAY STREETS WITH PARKING AND ONE-WAY STREETS WITH PARKING ON BOTH SIDES). CARE SHOULD BE TAKEN WHEN USING THE PRESENT CURVES TO DETERMINE EFFECTS OF SUCH CHANGES AS PROHIBITING PARKING, CHANGING FROM ONE-WAY TO TWO-WAY OPERATION, OR CHANGING THE LANE MARKINGS ON WIDE APPROACHES. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1969/289/289-002.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Highway Capacity and presented at the 48th Annual Meeting. 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:
  • Chang, Y B
  • Berry, Donald S
• Discussers:
  • MILLER, ALAN J
• Publication Date: 1969

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 14-24
• Monograph Title: Highway capacity
• Serial:
  • Highway Research Record
  • Issue Number: 289
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Charts; Consistency; Highway capacity; Intersections; Manuals; One way traffic; Parking; Traffic signals; Two lane highways
• Uncontrolled Terms: Intersection capacity; Two way traffic
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225580
• Record Type: Publication
• Report/Paper Numbers: Paper No 1
• Files: TRIS, TRB
• Created Date: Jan 12 1970 12:00AM