Coevolution of Environmental Perception and Cooperative Behavior in Evacuation Crowd

Area of Science:

• Social Dynamics
• Agent-Based Modeling
• Evacuation Behavior

Background:

• Environmental uncertainty significantly impacts social agent behavior and decision-making during evacuations.
• Agent perception of the environment is crucial for understanding their actions and choices.
• Cooperation among agents and their environmental perception may be intertwined during evacuation scenarios.

Purpose of the Study:

• To establish a mechanism for analyzing the coevolution between agent cooperation and environmental perception.
• To investigate how environmental perception influences cooperative behavior in evacuation crowds.

Main Methods:

• Utilized a regular square lattice with periodic boundaries for agent simulation.
• Employed two payoff matrices to model interactions between neighboring agents in safe and dangerous environments.
• Individual agent perception was dynamically adjusted through interactions with neighbors.

Main Results:

• A high fraction of cooperative agents was maintained when the environment was perceived as dangerous, irrespective of payoff values.
• In a perceived safe environment, the fraction of cooperation decreased as payoff values increased.
• Demonstrated a coevolutionary relationship between agent cooperation and environmental perception.

Conclusions:

• Environmental perception is a key factor driving cooperation levels in evacuation crowds.
• The model highlights the dynamic interplay between individual perception and collective behavior during emergencies.
• Findings have implications for designing safer and more efficient evacuation strategies.