• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 27 Issue 1
Jan.  2014
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Article Contents
WU Weitiao, SHEN L, JIN Wenzhou. Platoon Flow Dispersion Model Based on Truncated Normal Distribution of Speed[J]. Journal of Southwest Jiaotong University, 2014, 27(1): 126-133. doi: 10.3969/j.issn.0258-2724.2014.01.020
Citation: WU Weitiao, SHEN L, JIN Wenzhou. Platoon Flow Dispersion Model Based on Truncated Normal Distribution of Speed[J]. Journal of Southwest Jiaotong University, 2014, 27(1): 126-133. doi: 10.3969/j.issn.0258-2724.2014.01.020

Platoon Flow Dispersion Model Based on Truncated Normal Distribution of Speed

doi: 10.3969/j.issn.0258-2724.2014.01.020
  • Received Date: 16 Jun 2013
  • Publish Date: 25 Jan 2014
  • In order to overcome the defect in Pacey's platoon dispersion model that the speed distribution assumption does not conform to the field situation, a platoon dispersion model based on flow patterns was established to study the relationship between the arriving flow distribution at the downstream intersection and the departing flow distribution at the upstream intersection. In this model, vehicle speeds are assumed to follow a truncated normal distribution, ranging from minimum to maximum speed; and a piecewise function was used to construct the arriving flow distribution function at downstream intersections. The platoon flow distribution mode was investigated using the field collected data between two adjacent intersections. The results show that compared with the Robertson model, the proposed truncated normal distribution of speed is more consistent with the actual situation, and that the proposed model can precisely describe the change trend of the platoon flow passing the downstream intersection and ensure the flow conservation.

     

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