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Transportation dynamics on networks of heterogeneous mobile agents

Author

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  • Su, Zhu
  • Liu, Sannyuya
  • Deng, Weibing
  • Li, Wei
  • Cai, Xu

Abstract

Based on transportation networks of mobile agents, this paper discusses the condition under which the communication radii of mobile agents obey the power-law distribution. The analysis of network structure indicates that out-degrees obey a power-law distribution, while in-degrees follow a Poisson distribution. Simulation results reveal that: (i) there exists a critical value of package generate rate Pc, which defines the free-flow state and congested state. (ii) In the free-flow regime, the average traveling time T is small and independent of the packet generation rate P, but the average path length L increases with the growth of P and is related to a traffic awareness parameter h. (iii) The larger the heterogeneous exponent α of the communication radii is, the lower the transport efficiency of the network would be. (iv) There exists an optimal traffic awareness parameter h that maximizes the critical value Pc. (v) The critical value Pc decreases with the heterogeneous exponent α, increases with the network size N, and decreases with the speed v until v reaches an appropriate value.

Suggested Citation

  • Su, Zhu & Liu, Sannyuya & Deng, Weibing & Li, Wei & Cai, Xu, 2019. "Transportation dynamics on networks of heterogeneous mobile agents," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 523(C), pages 1379-1386.
    • Handle: RePEc:eee:phsmap:v:523:y:2019:i:c:p:1379-1386
    DOI: 10.1016/j.physa.2019.04.062
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    References listed on IDEAS

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    Cited by:

    1. Wang, Sicheng & Noland, Robert B., 2021. "What is the elasticity of sharing a ridesourcing trip?," Transportation Research Part A: Policy and Practice, Elsevier, vol. 153(C), pages 284-305.

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