Crossing Behaviour of Social Groups: Insights from Observations at Non-signalised Intersection

  • Andrea GorriniEmail author
  • Luca Crociani
  • Giuseppe Vizzari
  • Stefania Bandini
Conference paper


Environmental, demographical and psychological factors have a demonstrated impact on risky crossing behaviour. In this work we focus on the potential influence of social factors on the considered phenomenon (i.e., group crossing decision). We present the results of a video-recorded observation about the crossing behaviour of singles and dyads at non-signalised intersections. The results showed that crossing behaviour is characterised by three distinct phases: (i) approaching, (ii) appraising (decision making) and (iii) crossing. Dyads walk slower than single pedestrians in all phases. The crossing behaviour of dyads is characterised by the emergence of a leader who takes the decision to cross first, followed by the companion. However, there is no difference between the accepted safety gap of singles and dyads. Understanding factors influencing the crossing decision of social groups represents an important result supporting the development of agent-based simulations of pedestrian–vehicle interactions.



The Italian policy was compiled in order to exceed the ethical issues about the privacy of the people recorded without their consent. The authors thank Fatima Zahra Anouar for her fruitful contribution in data analysis. The recorded video tape and the annotated data set are available for research purposes.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Andrea Gorrini
    • 1
    Email author
  • Luca Crociani
    • 1
  • Giuseppe Vizzari
    • 1
  • Stefania Bandini
    • 1
    • 2
  1. 1.CSAI Research CenterUniversity of Milano-BicoccaMilanItaly
  2. 2.RCASTThe University of TokyoTokyoJapan

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