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Mixed Platoon Flow Dispersion Model Based on Speed-Truncated Gaussian Mixture Distribution

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  • Weitiao Wu
  • Wenzhou Jin
  • Luou Shen

Abstract

A mixed traffic flow feature is presented on urban arterials in China due to a large amount of buses. Based on field data, a macroscopic mixed platoon flow dispersion model (MPFDM) was proposed to simulate the platoon dispersion process along the road section between two adjacent intersections from the flow view. More close to field observation, truncated Gaussian mixture distribution was adopted as the speed density distribution for mixed platoon. Expectation maximum (EM) algorithm was used for parameters estimation. The relationship between the arriving flow distribution at downstream intersection and the departing flow distribution at upstream intersection was investigated using the proposed model. Comparison analysis using virtual flow data was performed between the Robertson model and the MPFDM. The results confirmed the validity of the proposed model.

Suggested Citation

  • Weitiao Wu & Wenzhou Jin & Luou Shen, 2013. "Mixed Platoon Flow Dispersion Model Based on Speed-Truncated Gaussian Mixture Distribution," Journal of Applied Mathematics, Hindawi, vol. 2013, pages 1-9, June.
    • Handle: RePEc:hin:jnljam:480965
    DOI: 10.1155/2013/480965
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    Cited by:

    1. Yao, Zhihong & Zhao, Bin & Qin, Lingqiao & Jiang, Yangsheng & Ran, Bin & Peng, Bo, 2020. "An efficient heterogeneous platoon dispersion model for real-time traffic signal control," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 539(C).
    2. Chaofa Wang & Dongdong Li & Qing Liu & Xiaorong Wei, 2023. "Speed distribution model, expectation speed of the system and aggregation behaviour for traffic congestion," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 44(4), pages 2175-2185, June.

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