[Cellular Automata] Simulation of emergency evacuation of disaster personnel under social force factors based on cellular automata with matlab code attached

1 Introduction

Analyzes the difficulties of personnel evacuation in emergency situations, proposes personnel evacuation strategies for emergency systems, and designs a CA-based personnel evacuation model. Through model simulation, the influence of relevant parameters in the model on the evacuation effect is analyzed.The field method in the personnel evacuation model is improved on the above. The simulation results show that the emergency evacuation simulation based on CA can well simulate the emergency evacuation behavior of people in the building and the development of emergency events. At the same time, the simulation method is intuitive and flexible.It provides a good research idea for emergency management research.

2 Emulation code

clear all;

close all

W = 0;

B = 1; %number booths

L = 1; %number lanes in highway before and after plaza

T = 1; % # hrs to simulate

global plazalength;

plazalength = 101;

plaza = create_plaza(B,L);

%======================================================

h = show_plaza(plaza,B,NaN); % %

%======================================================

entry_vector = create_entry(T,L);

waiting_time = 0;

output = 0;

for i = 1:T*1440

plaza = move_forward(plaza); %move cars forward

plaza = new_cars(plaza, entry_vector(i)); %allow new cars to enter

plaza = switch_lanes(plaza); %allow lane changes

waiting_time = waiting_time + compute_wait(plaza); %compute waiting time during timestep i

output = output + compute_output(plaza);

%=================================================

h = show_plaza(plaza,B,h); % %

drawnow

%pause(0.2)

%=================================================

plaza = clear_boundary(plaza);

plaza(1:20,1:40)=[-888];

plaza(1:20,60:101)=[-888];

plaza(21:50,1:45)=[-888];

plaza(21:50,55:101)=[-888];

plaza(60:101,1:45)=[-888];

plaza(60:101,55:101)=[-888];

end

show_plaza(plaza,B,h);

3 Run Results

4 References

[1]Bai Yang, Li Xingli, & Guo Fang. (2018). Simulation research on emergency evacuation of primary school students based on cellular automata. Journal of Taiyuan University of Science and Technology.

[2] Zhao Shuying, Su Guojun, He Yun, Xu Xinhe. Simulation Research of Emergency Evacuation System Based on Cellular Automata [J]. Small Microcomputer System, 2007, 28(12):5.​

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