Together Apart: the Influence of Increased Crowd Heterogeneity on Crowd Dynamics at Bottlenecks

Authors

DOI:

https://doi.org/10.17815/CD.2024.156

Keywords:

Pedestrian Dynamics, Heterogeneous Crowd, Wheelchair User, Luggage, Bottleneck, Disability, Evacuation, Performance-based Design, Egressibility

Abstract

Individual differences in mobility (e.g., due to wheelchair use) are often ignored in the prediction of crowd movement. Consequently, engineering tools cannot fully describe the impact of vulnerable populations on egress performance. To contribute to closing this gap, we performed laboratory experiments with 25 pedestrians with varying mobility profiles. The control condition comprised only participants without any additional equipment; in the luggage condition and the wheelchair condition, two participants at the center of the group either carried suitcases or used a wheelchair. We found that individuals using wheelchairs and to a lesser degree those carrying luggage needed longer to pass through the bottleneck, which also affected those walking behind them. This led to slower times to fully clear the bottleneck in the wheelchair and luggage condition compared to the control group. The results challenge the status quo in existing approaches to calculating egress performance and other key performance metrics in crowd dynamics.

References

Feliciani, C., Corbetta, A., Haghani, M., Nishinari, K.: Trends in crowd accidents based on an analysis of press reports. Safety Science 164, 106174 (2023). doi:10.1016/j.ssci.2023.106174

Haghani, M., Coughlan, M., Crabb, B., Dierickx, A., Feliciani, C., van Gelder, R., Geoerg, P., Hocaoglu, N., Laws, S., Lovreglio, R., Miles, Z., Nicolas, A., O'Toole, W.J., Schaap, S., Semmens, T., Shahhoseini, Z., Spaaij, R., Tatrai, A., Webster, J., Wilson, A.: A roadmap for the future of crowd safety research and practice: Introducing the swiss cheese model of crowd safety and the imperative of a vision zero target. Safety Science 168, 106292 (2023). doi:10.1016/j.ssci.2023.106292

Gwynne, Steven, Boyce, K.E.: Engineering data. In: Hurley, M.J. (ed.) SFPE handbook of fire protection engineering, pp. 2429-2551. Springer, New York (2016)

Haghani, M.: Empirical methods in pedestrian, crowd and evacuation dynamics: Part i. experimental methods and emerging topics. Safety Science 129, 104743 (2020). doi:10.1016/j.ssci.2020.104743

Haghani, M.: The knowledge domain of crowd dynamics: Anatomy of the field, pioneering studies, temporal trends, influential entities and outside-domain impact. Physica A: Statistical Mechanics and its Applications p. 126145 (2021). doi:10.1016/j.physa.2021.126145

Wang, X., Liu, Z., Wang, J., Loughney, S., Yang, Z., Gao, X.: Experimental study on individual walking speed during emergency evacuation with the influence of ship motion. Physica A: Statistical Mechanics and its Applications 562, 125369 (2021). doi:10.1016/j.physa.2020.125369

World report on disability. WHO, Geneva (2011)

World Health Organization: Fact sheet on wheelchairs (2010)

Tas, U., Verhagen, A.P., Bierma-Zeinstra, S.M.A., Odding, E., Koes, B.W.: Prognostic factors of disability in older people: a systematic review. The British journal of general practice : the journal of the Royal College of General Practitioners 57(537), 319-323 (2007)

Shimada, T., Naoi, H.: An experimental study on the evacuation flow of crowd including wheelchair users. Fire Science and Technology 25(1), 1-14 (2006). doi:10.3210/fst.25.1

Sharifi, M.S., Stuart, D., Christensen, K., Chen, A., Kim, Y.S., Chen, Y.: Analysis of walking speeds involving individuals with disabilities in different walking environments. In: Transportation Research Board (ed.) Proceedings of the 93th Annual Meeting of the Transportation Research Board (2014)

Sharifi, M.S., Stuart, D., Christensen, K., Chen, A.: Traffic flow characteristics of heterogeneous pedestrian stream involving individuals with disabilities. Transportation Research Record 2537, 111-125 (2015). doi:10.3141/2537-13

Sharifi, M.S., Stuart, D., Christensen, K., Chen, A., Kim, Y.S., Chen, Y.: Analysis of walking speeds involving individuals with disabilities in different indoor walking environments. Journal of Urban Planning and Development 142(1), 04015010 (2016). doi:10.1061/(ASCE)UP.1943-5444.0000288

Sharifi, M.S., Christensen, K., Chen, A., Stuart, D., Kim, Y.S., Chen, Y.: A large-scale controlled experiment on pedestrian walking behavior involving individuals with disabilities. Travel Behaviour and Society 8, 14-25 (2017). doi:10.1016/j.tbs.2017.03.003

Pan, H., Zhang, J., Song, W.: Experimental study of pedestrian flow mixed with wheelchair users through funnel-shaped bottlenecks. Journal of Statistical Mechanics: Theory and Experiment 2020(3), 033401 (2020). doi:10.1088/1742-5468/ab6b1c

Pan, H., Zhang, J., Song, W., Yao, B.: Fundamental diagram of pedestrian flow including wheelchair users in straight corridors. Journal of Statistical Mechanics: Theory and Experiment 2021(3), 033411 (2021). doi:10.1088/1742-5468/abe93f

Geoerg, P., Berchtold, F., Gwynne, Steven, Boyce, K., Holl, S., Hofmann, A.: Engineering egress data considering pedestrians with reduced mobility. Fire and Materials 43(7), 759-781 (2019). doi:10.1002/fam.2736

Tsuchiya, S., Hasemi, Y., Furukawa, Y.: Evacuation characteristics of group with wheelchair users. Proceedings of the Asia-Oceania Symposium on Fire Science and Technology (2007)

Fu, L., Qin, H., Shi, Q., Zhang, Y., Shi, Y.: An experimental study on evacuation dynamics including individuals with simulated disabilities. Safety Science 155, 105878 (2022). doi:10.1016/j.ssci.2022.105878

Geoerg, P., Schumann, J., Holl, S., Hofmann, A.: The influence of wheelchair users on movement in a bottleneck and a corridor. Journal of Advanced Transportation 2019(3), 1-17 (2019). doi:10.1155/2019/9717208

Geoerg, P., Schumann, J., Holl, S., Boltes, M., Hofmann, A.: The influence of individual impairments in crowd dynamics. Fire and Materials 2018(2), 1 (2020). doi:10.1002/fam.2789

Tanimoto, Y., Namba, K., Furusawa, K., Yamamoto, H., Tokuhiro, A., Ukida, H.: Measurement and imaging of wheelchair movement for manual wheelchair users. 2011 IEEE International Conference on Imaging Systems and Techniques pp. 253-258 (2011). doi:10.1109/IST.2011.5962180

Daamen, W., Hoogendoorn, S.P.: Capacity of doors during evacuation conditions. Procedia Engineering 3, 53-66 (2010). doi:10.1016/j.proeng.2010.07.007

Yayun, Y., Rui, Y., Fang, Z., Xiangxia, R., Shaocong, X., Peng, H., Liping, Y., Tao, Y., Jiamu, Y.: Evacuation dynamics of heterogeneous crowds involving individuals with different types of disabilities. SSRN Electronic Journal (2023). doi:10.2139/ssrn.4463172

Feliciani, C., Murakami, H., Shimura, K., Nishinari, K.: Efficiently informing crowds - experiments and simulations on route choice and decision making in pedestrian crowds with wheelchair users. Transportation Research Part C: Emerging Technologies 114, 484-503 (2020). doi:10.1016/j.trc.2020.02.019

Geoerg, P., Schumann, J., Boltes, M., Kinateder, M.: How people with disabilities influence crowd dynamics of pedestrian movement through bottlenecks. Scientific Reports 12(1) (2022). doi:10.1038/s41598-022-18142-7

Geoerg, P., Boomers, A.K., Berthiaume, M., Boltes, M., Kinateder, M.: Exploring perceived vulnerability of pedestrians: Insights from a forced-choice experiment. arXiv:2310.19524[physics.soc-ph] (2023)

Boltes, M., Adrian, J., Boomers, A.K., Brualla, R.M., Graf, A., Häger, P., Hillebrand, D., Kilic, D., Lieberenz, P., Salden, D., Schrödter, T.: Petrack (2022). doi:10.5281/zenodo.6320753

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Published

04.06.2024

How to Cite

Geoerg, P., Boomers, A. K., Berthiaume, M., Boltes, M., & Kinateder, M. (2024). Together Apart: the Influence of Increased Crowd Heterogeneity on Crowd Dynamics at Bottlenecks. Collective Dynamics, 9, 1–10. https://doi.org/10.17815/CD.2024.156

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Section

Special Issue of Pedestrian and Evacuation Dynamics 2023