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

Weitiao Wu | Zendy; Wenzhou Jin | Zendy; Luou Shen | Zendy

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

Author(s) -

Weitiao Wu,

Wenzhou Jin,

Luou Shen

Publication year - 2013

Publication title -

journal of applied mathematics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.307

H-Index - 43

eISSN - 1687-0042

pISSN - 1110-757X

DOI - 10.1155/2013/480965

Subject(s) - platoon , dispersion (optics) , intersection (aeronautics) , flow (mathematics) , traffic flow (computer networking) , distribution (mathematics) , gaussian , mechanics , mathematics , simulation , computer science , mathematical analysis , engineering , physics , optics , transport engineering , artificial intelligence , control (management) , computer security , quantum mechanics

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

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