A Compositional Analysis of Unbalanced Usages of Multiple Left-turn Lanes

  • Li Li Collage of Transportation Engineering, Tongji University
  • Qing-Chang Lu Oceanic & Civil Engineering, Shanghai Jiao Tong University
  • Yun-Tao Chang Collage of Transportation Engineering, Tongji University
  • Zhong-Ren Peng Oceanic & Civil Engineering, Shanghai Jiao Tong University Department of Urban and Regional Planning University of Florida
Keywords: lane usage, drivers’ lane preferences, double and triple left-turn lanes, classical analysis of variance, compositional analysis of variance,

Abstract

Lane usage measures distribution of a specific traffic movement across multiple available lanes in a given time. Unbalanced lane usages decrease the capacity of subject segment. This paper took multiple left-turn lanes at signalized intersections as case study, and explored the influences of some factors on the lane usage balance. Lane usages were calculated from field collected lane volumes and the constant-sum constraint among them was explicitly considered in the statistical analysis. Classical and compositional analysis of variance was respectively conducted to identify significant influential factors. By comparing the results of compositional analysis and those of the classical one, the former ones have better interpretability. It was found that left-turn lane usages could be affected by parameter variance of geometric design or traffic control, such as length of turning curve, length of upstream segment, length of signal phase or cycle. These factors could make the lane usages achieve relative balance at different factor levels.

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Li Li, Collage of Transportation Engineering, Tongji University

Ph.D Candidate

Key Laboratory of Road and Traffic Engineering, Ministry of Education, Collage of Transportation Engineering, Tongji University, Shanghai, China

Qing-Chang Lu, Oceanic & Civil Engineering, Shanghai Jiao Tong University

Ph.D, Assistant Professor

State Key Laboratory of Ocean  Engineering, Department of Transportation and Logistics School of  Naval Architecture, Shanghai, China

Yun-Tao Chang, Collage of Transportation Engineering, Tongji University

Ph.D, Assistant Professor

Key Laboratory of Road and Traffic Engineering, Ministry of Education, Collage of Transportation Engineering, Tongji University, Shanghai, China

Zhong-Ren Peng, Oceanic & Civil Engineering, Shanghai Jiao Tong University Department of Urban and Regional Planning University of Florida

Ph.D, Professor

Key Laboratory of Road and Traffic Engineering, Ministry of Education, Shanghai, China

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Published
2017-06-27
How to Cite
1.
Li L, Lu Q-C, Chang Y-T, Peng Z-R. A Compositional Analysis of Unbalanced Usages of Multiple Left-turn Lanes. Promet [Internet]. 2017Jun.27 [cited 2024Nov.5];29(3):287-98. Available from: https://traffic.fpz.hr/index.php/PROMTT/article/view/2093
Section
Articles