## 5 Conclusions  
The Weber-Fechner Law describes the quantitative relationship between psychological response and stimulus intensity. In the context of metro emergencies, this study addresses the limitations of existing research in emotional computation by proposing a group emotion contagion model that accounts for individual differences, based on the Weber-Fechner Law. Extensive multi-agent simulation experiments were conducted to model the evolution of group emotions, with the resulting trends closely aligning with observed phenomena. This confirms the model's effectiveness in explaining the contagion process of group emotions during metro emergencies. Additionally, this study provides a numerical analysis to explore the mechanisms by which crowd density, personality traits, official interventions, and evacuation rates influence emotional contagion, leading to the following conclusions. Dense crowds exacerbate the level of group panic but also contribute positively to the stabilization of group emotions. Specifically, when crowd density is high, group emotions tend to stabilize at a heightened level of panic. It is therefore recommended that metro authorities remain vigilant during peak hours and promptly provide reassurance and guidance in the event of an emergency. Sensitive passengers are more prone to extreme emotions during metro emergencies. These extreme emotions can be either positive or negative, but, without proper guidance, they may evolve into negative emotions under the influence of emotional contagion, amplifying the spread of panic. Therefore, it is advisable to strengthen metro safety education to help passengers make more rational assessments of emergencies, thereby curbing the spread of panic at its source. Additionally, after an emergency occurs, metro authorities should pay particular attention to this sensitive group when managing the situation's evolution. Official interventions play a crucial role in curbing the spread of panic. When regulatory measures are implemented, group emotions quickly shift from a heightened state of panic to a lower one, with the effectiveness of this transition increasing with the strength of the official regulation. Thus, it is recommended that authorities focus on enhancing their credibility and improving the regulatory impact of official communications on passengers' emotions. However, this regulatory effect may not be sustained over time and is constrained by the enclosed environment. Consequently, it is particularly important for authorities to actively disseminate information once the train arrives at the station to calm passengers' emotions. Although an efficient evacuation rate cannot reduce the peak level of group panic within the carriage, it can shorten the duration of panic by quickly dispersing the crowd, thereby preventing more severe safety incidents caused by crowding. Moreover, passengers with higher levels of panic tend to leave the carriage more quickly. If metro authorities fail to intervene and manage these highly panicked passengers promptly after the train arrives at the station, these individuals may trigger another wave of panic on the platform. During the train's motion, metro authorities must promptly investigate and release official information to reassure passengers and calm their emotions. Once the train arrives at the station, operational staff must be deployed to guide passengers for an orderly evacuation. The findings of this study provide a basis for optimizing evacuation strategies in metro operations, thereby improving the efficiency of emergency response. Based on the simulation of the emotional contagion process during metro emergencies, this study reveals the propagation patterns of group panic and examines the impact mechanisms of factors such as crowd density, personality traits, official interventions, and evacuation rates on emotional contagion. Through numerical simulations, metro operators can adopt more targeted and efficient measures to curb the spread of crowd panic and effectively manage emergency crises.