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Modeling through Traffic Speed at Roundabouts along Urban and Suburban Street Arterials

Author

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  • Al-Omari, Bashar H.
  • Ghuzlan, Khalid A
  • Al-Helo, Lina B.

Abstract

A total of 30 roundabouts with different dimensions and characteristics were selected from three cities in Jordan. The collected data included the approaching road free flow speed (FFS), area type, entry width, circulating roadway width, exit width, roundabout internal and external circle diameters, circulating roadway super elevation, entry deviation angle, and drive curve. The regression analysis showed that the entry width, internal circulating diameter, entry deviation angle, approaching FFS, and drive curve were significant in determining the average and 85th percentile roundabout circulating speed. The developed model was compared with other international models developed in the United States and Italy.

Suggested Citation

  • Al-Omari, Bashar H. & Ghuzlan, Khalid A & Al-Helo, Lina B., 2014. "Modeling through Traffic Speed at Roundabouts along Urban and Suburban Street Arterials," Journal of the Transportation Research Forum, Transportation Research Forum, vol. 53(2).
    • Handle: RePEc:ags:ndjtrf:207432
    DOI: 10.22004/ag.econ.207432
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    Cited by:

    1. Slavko Davidović & Vuk Bogdanović & Nemanja Garunović & Zoran Papić & Dragan Pamučar, 2021. "Research on Speeds at Roundabouts for the Needs of Sustainable Traffic Management," Sustainability, MDPI, vol. 13(1), pages 1-20, January.
    2. Mo'ath ALSHANNAQ & Rana IMAM, 2020. "Evaluating The Safety Performance Of Roundabouts," Transport Problems, Silesian University of Technology, Faculty of Transport, vol. 15(1), pages 141-152, March.

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    Keywords

    Public Economics;

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