PASSENGER CAR EQUIVALENCIES OF TRUCKS, BUSES, AND RECREATIONAL VEHICLES FOR TWO-LANE RURAL HIGHWAYS

Passenger car equivalents or adjustment factors for trucks, buses, and recreational vehicles are often required in carrying out highway capacity calculations. This paper presents, in part, the results of a research project into the effect that recreational vehicles have on highway capacity. Described are the underlying methods referred to in the 1965 Highway Capacity Manual for determining passenger car equivalents, the methods used for developing equivalencies for recreational vehicles, and the use of the new equivalencies for typical highway capacity computations. Sensitivity testing of a recreational vehicle simulator model is discussed. Results of the sensitivity testing, which was extended to include highway capacity computations, strongly indicate that the present passenger car equivalent speed curves and adjustment factors in the 1965 Highway Capacity Manual require further refinement and updating, particularly at slower speeds. This paper estimates their correct placement by applying basic traffic engineering relationships. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/615/615-003.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=PASSENGER+CAR+EQUIVALENCIES+OF+TRUCKS%2c+BUSES%2c+AND+RECREATIONAL+VEHICLES+FOR+TWO-LANE+RURAL+HIGHWAYS&author=A.+Werner&author=J.+Morrall&publication_year=1976
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Highway Capacity and Quality of Service. 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:
  • Werner, Al
  • Morrall, John F
• Discussers:
  • Carter, Arthur A
• Conference:
  • 55th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1976-1-19 to 1976-1-23
• Publication Date: 1976

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 10-17
• Monograph Title: Capacity and measurement of effectiveness
• Serial:
  • Transportation Research Record
  • Issue Number: 615
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Buses; Highway capacity; Location; Passenger car equivalence; Recreational vehicles; Rural highways; Simulation; Trucks; Two lane highways
• Old TRIS Terms: Placement
• Subject Areas: Highways; Motor Carriers; Operations and Traffic Management; Public Transportation;

Filing Info

• Accession Number: 00162977
• Record Type: Publication
• ISBN: 0309025915
• Files: TRIS, TRB
• Created Date: Oct 13 1977 12:00AM