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Mechanisms of passing through short exits for the elderly and young adults

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  • Ren, Xiangxia
  • Zhang, Jun
  • Song, Weiguo
  • Cao, Shuchao

Abstract

The enhancement of the passage efficiency and the safety of pedestrians in public places have being paid increasing attentions. The increase of the elderly in crowds may impact the level of service of transportation systems due to the lower physical abilities. In this work, we focus on the movement characteristics through short bottlenecks for both the elderly and young adults experimentally. It is found that the elderly adopts the distance-oriented strategy when moving forward to an exit, while the young adults adopt the time-oriented strategy. These strategies lead to a 26% decline in the space utilization for the elderly and more waiting phase for the young adults. Besides, ellipse and teardrop-shape spatial distribution of the high-density regions are observed for the elderly and the young adults respectively. The time headway for two consecutive elders through the exit is 0.20 ± 0.06 s longer than that of the young adults. For a certain exit, the flow rate of the elderly stream is lower than that of the young stream. The capacity for the former is 0.51 p/(m s) lower than that for the latter. Consequently, the exit width for the elderly is suggested to be widened to 1.25b − 0.05 m from the width b for young adults. The results presented in this study can be used in management strategies of pedestrian flow and design of traffic facilities for the old people.

Suggested Citation

  • Ren, Xiangxia & Zhang, Jun & Song, Weiguo & Cao, Shuchao, 2021. "Mechanisms of passing through short exits for the elderly and young adults," Transportation Research Part A: Policy and Practice, Elsevier, vol. 151(C), pages 195-213.
    • Handle: RePEc:eee:transa:v:151:y:2021:i:c:p:195-213
    DOI: 10.1016/j.tra.2021.07.014
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    References listed on IDEAS

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    9. Sun, Lishan & Luo, Wei & Yao, Liya & Qiu, Shi & Rong, Jian, 2017. "A comparative study of funnel shape bottlenecks in subway stations," Transportation Research Part A: Policy and Practice, Elsevier, vol. 98(C), pages 14-27.
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    Cited by:

    1. Ren, Xiangxia & Zhang, Jun & Hu, Yanghui & Cao, Shuchao & Yang, Xiaoxia & Song, Weiguo, 2024. "Spatial and temporal analysis of bottleneck flow for the elderly and the young pedestrians under multiple modes," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 640(C).
    2. Hu, Yanghui & Bi, Yubo & Li, Hongliu & Gao, Wei & Zhang, Jun & Song, Weiguo, 2023. "An empirical study on the effect of an obstacle on the inflow process," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 621(C).
    3. Miwa, Tomio & Wang, Jianbiao & Morikawa, Takayuki, 2023. "Are seniors in mountainous areas able to realize their desired trips? A novel approach to estimate trip demand," Transportation Research Part A: Policy and Practice, Elsevier, vol. 175(C).
    4. Ren, Xiangxia & Hu, Yanghui & Li, Hongliu & Zhang, Jun & Song, Weiguo & Xu, Han, 2022. "Simulation of building evacuation with different ratios of the elderly considering the influence of obstacle position," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 604(C).

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