Evaluation of warning signs and markings to reduce speeds on curves

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Sharp horizontal curves can pose dangers to the driver when dealing with speed adjustment, vehicle placement, and judgment of the appropriate operating speed. Roadway designers use various warning methods to aid drivers in such situations. Two primary methods of achieving this are warning signs and pavement markings. There is a suspicion however that these devices are often misinterpreted or disregarded by drivers. The objective of this study is to evaluate the use of several warning signs and pavement markings at problematic rural horizontal curves, and to evaluate their effectiveness in relation to speed reduction. Several types of warning signs and pavement markings were used to determine methods and combinations that could reduce operating speeds more effectively. The results indicate that the most promising treatments in reducing operating speeds are flashing lights and transverse lines. Another treatment that also showed some potential for reducing speeds is the new combination sign.

Original languageEnglish
Title of host publicationEfficient Transportation and Pavement Systems
Subtitle of host publicationCharacterization, Mechanisms, Simulation, and Modeling - Proceedings of the 4th International Gulf Conference on Roads
Pages303-312
Number of pages10
StatePublished - 2008
Event4th International Gulf Conference on Roads - Doha, Qatar
Duration: Nov 10 2008Nov 13 2008

Publication series

NameEfficient Transportation and Pavement Systems: Characterization, Mechanisms, Simulation, and Modeling - Proceedings of the 4th International Gulf Conference on Roads

Conference

Conference4th International Gulf Conference on Roads
Country/TerritoryQatar
CityDoha
Period11/10/0811/13/08

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Transportation

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