Evacuation support system to control emotional level of crowd: simulation-based evaluation under various scales and rati
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ORIGINAL ARTICLE
Evacuation support system to control emotional level of crowd: simulation‑based evaluation under various scales and ratios of guide robots for evacuees Kazuyuki Ito1 · Yusuke Sato1 Received: 9 March 2020 / Accepted: 12 August 2020 © International Society of Artificial Life and Robotics (ISAROB) 2020
Abstract In recent years, the development of efficient and effective evacuation information systems has attracted considerable attention, because people have been affected by various large-scale disasters such as typhoons, cyclones, floods, and tsunamis all over the world. Even in conventional evacuation information systems, necessary information can be given to the evacuees in advance. Nevertheless, it has been reported that many of the victims died without escaping. The cause is not the lack of information but the psychological properties of humans. This phenomenon is called majority syncing bias. In general, we tend to sympathize with the emotions of others in a crowd, and this prevents evacuation. In our previous works, we proposed a framework for controlling the emotional level of a crowd by employing robots. In this paper, to confirm the effectiveness of our proposed approach, we conducted additional simulations under various scales and ratios of guide robots for evacuees. Keywords Majority synching bias · Normalcy bias · Evacuation guidance system · Conformity
1 Introduction In recent years, the development of efficient and effective evacuation information systems has attracted considerable attention, because people have been affected by various large-scale disasters such as typhoons, cyclones, floods, and tsunamis all over the world. Failing to escape is the one of the biggest problems during such disasters. If the evacuees have enough information and can behave adaptively for the situation, many of them can survive. Even in conventional evacuation information systems, necessary information can be given to the evacuees in advance. Nevertheless, it has been reported that many of the victims died without escaping [1–5]. The cause is not the lack of information but the psychological properties of humans. This phenomenon is called majority syncing bias. In general, we tend to sympathize with the emotions of others in a crowd, and this This work was presented in part at the 25th International Symposium on Artificial Life and Robotics (Beppu, Oita, January 22–24, 2020). * Kazuyuki Ito [email protected] 1
Hosei University, Tokyo, Japan
prevents evacuation. In our previous works, we proposed a framework to control the emotional level of a crowd by employing robots. In this paper, to confirm the effectiveness of our proposed approach, we conducted additional simulations under various scales and ratios of guide robots for evacuees.
2 Previous research 2.1 Conformity Conformity is the phenomenon in which the emotion of people in a crowd is synchronized with the people around, and it is reported that conformity is one of the most serious causes of failure during an evacuation [1, 6]. For example,
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