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Exploring Factors Impacting Paths of Left-Turning Vehicles from Minor Road Approach at Unsignalized Intersections

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  • Guoqiang Zhang
  • Yuli Qi
  • Jun Chen

Abstract

At unsignalized intersections, left-turning vehicles from minor road approach are more likely to be involved in traffic conflicts and traffic crashes and are one of the most leading factors impacting traffic efficiency and capacity. The authors of the paper observed that some drivers behaved illegally and dangerously while performing left turns from minor road approach, resulting in abnormal trajectories at unsignalized intersections. By applying binary logistic analysis, a probability prediction model was developed to explore various factors affecting probability of normal path taken by drivers while turning left from minor road approach. Based upon the model, measures such as lowering running speeds of vehicles on major road or minor road and adding more lanes on minor road can be used to encourage more drivers to take normal vehicle paths, which is helpful for the improvement of traffic safety, efficiency, and capacity. Results of the paper can be used for the guidance of design and management of unsignalized intersections.

Suggested Citation

  • Guoqiang Zhang & Yuli Qi & Jun Chen, 2016. "Exploring Factors Impacting Paths of Left-Turning Vehicles from Minor Road Approach at Unsignalized Intersections," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-9, March.
    • Handle: RePEc:hin:jnlmpe:1305890
    DOI: 10.1155/2016/1305890
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    Cited by:

    1. Guoqiang Zhang & Qiqi Zhou & Jun Chen, 2021. "Exploring Factors Impacting on the Lane Choice of Riders of Non-Motorized Vehicles at Exit Legs of Signalized At-Grade Intersections," IJERPH, MDPI, vol. 18(12), pages 1-17, June.

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