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Effect of passing zone length on operation and safety of two-lane rural highways in Uganda
KTH. Department of Civil and Environmental Engineering, Makerere University Kampala, Uganda.
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Transport Planning, Economics and Engineering.
2017 (English)In: IATSS RESEARCH, ISSN 0386-1112, Vol. 41, no 1, 38-46 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a methodology to assess the effect of the length of passing zone on the operation and safety of two-lane rural highways based on the probability and the rate of passing maneuvers ending in a no-passing zone. The methodology was applied using observed passing maneuver data collected with tripod-mounted camcorders at passing zones in Uganda. Findings show that the rate at which passing maneuvers end in a no-passing zone increases with traffic volume and unequal distribution of traffic in the two directions, absolute vertical grade, and percent of heavy vehicles in the subject direction. Additionally, the probability of passing maneuvers ending in a no-passing zone reaches 0.50 when the remaining sight distance from the beginning of the passing zone is 245 m for passenger cars or short trucks (2-3 axles), and 300 m for long trucks (4-7 axles) as the passed vehicles. These results suggest policy changes in design and marking of passing zones to enhance safety and operation of two-lane rural highways. (C) 2016 International Association of Traffic and Safety Sciences.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD , 2017. Vol. 41, no 1, 38-46 p.
Keyword [en]
Passing zones, No-passing zones, Safety Two-lane rural highways
National Category
Transport Systems and Logistics
Identifiers
URN: urn:nbn:se:kth:diva-206693DOI: 10.1016/j.iatssr.2016.09.001ISI: 000399283900005Scopus ID: 2-s2.0-84995754647OAI: oai:DiVA.org:kth-206693DiVA: diva2:1094040
Note

QC 20170509

Available from: 2017-05-09 Created: 2017-05-09 Last updated: 2017-05-09Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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