FIELD OBSERVATIONS OF TRUCK OPERATIONAL CHARACTERISTICS RELATED TO INTERSECTION SIGHT DISTANCE

Several pilot field studies were conducted to test a data collection methodology for the evaluation of AASHTO Case III-B and C sight distances for trucks at stop-controlled T intersections. The data collection plan used a combination of three traffic observation techniques: video recorders, human observers, and portable traffic data collectors. Specific findings included estimates for the gaps (time and distance) that trucks on a minor road accept during a turn maneuver onto a two-lane roadway, the average acceleration rate for the turn maneuver of a truck on a minor road, and the average deceleration rate of vehicles on a major road during a truck's turn maneuver from a minor road. The speed reduction by a vehicle on a major road during the truck's turn maneuver and the minimum separation distance between the turning vehicle and an oncoming vehicle were also estimated.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1990/1280/1280-018.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=FIELD+OBSERVATIONS+OF+TRUCK+OPERATIONAL+CHARACTERISTICS+RELATED+TO+INTERSECTION+SIGHT+DISTANCE&author=D.+Harwood&author=J.+Mason+Jr&author=K.+Fitzpatrick&author=D.+Harwood&publication_year=1990
• Availability:
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1280, Transportation Management, HOV Systems, and Geometric Design and Effects 1990. 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:
  • Harwood, D W
  • Mason Jr, John M
  • Fitzpatrick, Kay
  • Harwood, Douglas W
• Publication Date: 1990

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 163-172
• Monograph Title: Transportation management, HOV systems, and geometric design and effects 1990
• Serial:
  • Transportation Research Record
  • Issue Number: 1280
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Data collection; Data recorders; Deceleration; Field studies; Gap acceptance; Opposing traffic; Sight distance; T intersections; Traffic data; Trucks; Turning traffic; Videotapes
• Uncontrolled Terms: Oncoming vehicles; Turning movements
• Old TRIS Terms: Deceleration rate; Field observation; Human observers
• Subject Areas: Design; Highways; Motor Carriers; Operations and Traffic Management; Vehicles and Equipment; I73: Traffic Control;

Filing Info

• Accession Number: 00605591
• Record Type: Publication
• ISBN: 0309050588
• Files: TRIS, TRB, ATRI
• Created Date: Mar 31 1991 12:00AM