Simulation Model of Crowd Evacuation Navigation in a Multi-Obstacle Environment

2020 ◽  
pp. 036119812097126
Author(s):  
Zhongrui Ni ◽  
Zhen Liu ◽  
Tingting Liu ◽  
Yanjie Chai ◽  
Cuijuan Liu
Keyword(s):  
Simulation Model ◽  
Simulation Experiment ◽  
Control Algorithms ◽  
Prototype System ◽  
Evacuation Simulation ◽  
Agent Based ◽  
Crowd Management ◽  
Navigation Simulation ◽  
Local Navigation ◽  
Crowd Evacuation

The simulation of a crowd evacuating public buildings can be an important reference in planning the layout of buildings and formulating evacuation strategies. This paper proposes an agent-based crowd model; a crowd evacuation navigation simulation model is proposed for the multi-obstacle environment. We introduce the concept of navigation factor to describe the proximity of the navigation point to the exit. An algorithm for creating navigation points in multi-obstacle environment is proposed along with the global navigation and local navigation control algorithms of the crowd. We construct a crowd evacuation simulation prototype system with different simulation scenes using the scene editor. We conduct the crowd evacuation simulation experiment in the multi-obstacle scene, recording and analyzing the relevant experimental data. The simulation prototype system can be used to derive the evacuation time of the crowd and analyze the evacuation behavior of the crowd. It is expected to provide a visual deduction method for crowd management in an evacuation emergency.

Multi-Agent Based Simulation Model for Rail Transit Evacuation Process

2014 ◽  
Vol 1030-1032 ◽  
pp. 2044-2049
Author(s):  
Can Can Zhao ◽  
Xiao Hong Guo ◽  
Juxihong Julaiti ◽  
Jie Wang
Keyword(s):  
Simulation Model ◽  
Rail Transit ◽  
Evacuation Simulation ◽  
Transit System ◽  
Agent Based ◽  
Agent Model ◽  
Agent Simulation ◽  
Multi Agent ◽  
The Military ◽  
Specific Definition

In order to analyze the evacuation behaviors and optimize evacuation strategies for rail transit system, an evacuation agent centered simulation model was proposed. Firstly, by considering the attributes, status and decision-making behaviors of evacuation personnel, the evacuation agent model was established, and the running principle as well as construction process of multi-agent simulation model was discussed. Then, the specific definition and design for the agent attributes and evacuation behavior protocol were provided. Finally, based on the simulation model proposed, an evacuation simulation platform for the military museum station of Beijing subway line 9 was established by using REPAST and JAVA, several evacuation strategies were tested and optimized.

scholarly journals A Virtual Reality Simulation Method for Crowd Evacuation in a Multiexit Indoor Fire Environment

2020 ◽  
Vol 9 (12) ◽  
pp. 750
Author(s):  
Yukun Guo ◽  
Jun Zhu ◽  
Yu Wang ◽  
Jinchuan Chai ◽  
Weilian Li ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Environmental Factors ◽  
Route Planning ◽  
Simulation Method ◽  
Prototype System ◽  
Evacuation Simulation ◽  
Fire Environment ◽  
Planning Algorithm ◽  
Crowd Evacuation ◽  
Evacuation Route Planning

Evacuation simulations in virtual indoor fire scenes hold great significance for public safety. However, existing evacuation simulation methods are inefficient and provide poor visualized when applied to virtual reality (VR) simulations. Additionally, the influences of the interaction of evacuation processes on the choice of multiple exits have not been fully considered. In the paper, we propose a VR simulation method for crowd evacuation in a multiexit indoor fire environment. An indoor 3D scene model and character model, for studying the environmental factors that affect the multiexit selection of personnel during the fire process, are combined with environmental factors to enhance the evacuation route planning algorithm to improve the efficiency of the VR simulation of evacuation in the scene. In addition, a prototype system that supports multiple experience modes is proposed, and case experiment analyses are performed. The results show that the method described in this paper can effectively support the real-time simulation of indoor fire evacuations in virtual scenes, providing both reliable simulation results and good visualization effects.

Evacuation Simulation to a Library Room of a University Based on Computer Software Building EXODUS

2014 ◽  
Vol 651-653 ◽  
pp. 1576-1579
Author(s):  
Yu Min Tian
Keyword(s):  
Computer Software ◽  
Evacuation Simulation ◽  
Psychological Characteristic ◽  
Crowd Management ◽  
Facilities Design ◽  
Crowd Evacuation ◽  
Crowd Behaviors ◽  
And Behavior

Panic is a typical psychological characteristic of crowd in a fire, which can cause serious casualties. By discussing psychology and behavior of crowd in panic, the paper analyzes behavior of crowd evacuation, and utilizes Building EXODUS to simulate crowd behaviors to a library room of a university. Some instructional conclusions are got, which can give theoretic and methodological guides to crowd management, crowd facilities design, evacuation analysis in buildings, establishment of emergency preplanning and so on.

Modelling Route Choice in Crowd Evacuation on Passenger Ships

2021 ◽  
Vol 163 (A2) ◽  
Author(s):  
Y Li ◽  
W Cai ◽  
A A Kana ◽  
B Atasoy
Keyword(s):  
Simulation Model ◽  
Route Choice ◽  
Heat Map ◽  
Evacuation Time ◽  
Agent Based ◽  
Crowd Density ◽  
Proposed Model ◽  
Passenger Ships ◽  
Crowd Evacuation ◽  
Evacuation Safety

This paper proposes an agent-based simulation model with route choice process to predict the crowd behaviours and evaluate the evacuation safety on passenger ships. The model focuses on the behaviours of two common types of passengers that are not typically accounted for during most evacuation analyses, namely, passengers who are not familiar with the ship layout and passengers who have family members or friends with them. In the proposed model, a marker concept is introduced to represent critical routing points of the layout and passenger agents make a route choice based on their surroundings and characteristics instead of just following the shortest routes. The simulation model is tested by two small but targeted scenarios and one comprehensive scenario on a ship deck. For ship designers, a more realistic evacuation time is provided to better assess the evacuation performance of a ship, and a heat map of crowd density is presented to identify possible bottleneck areas.

A Novel Transmitting System for Electromagnetic Sounding Based on Tri-state Boost Converter

2019 ◽  
Vol 12 (6) ◽  
pp. 494-499
Author(s):  
Gang Li ◽  
Binren Zhang
Keyword(s):  
Simulation Model ◽  
Output Power ◽  
Basic Principle ◽  
Simulation Experiment ◽  
Dynamic Performance ◽  
Boost Converter ◽  
Electromagnetic Sounding ◽  
Important Method ◽  
Geophysical Exploration ◽  
Electromagnetic Detection

Background: Electromagnetic detection is an important method of geophysical exploration. The transmitting system is an important part of the electromagnetic detection equipment. Methods: The general topologies of a transmitting system for EM instrument are analyzed. The basic principle of EM detection is interpreted. In order to improve the output power and give consideration to the dynamic performance, an electromagnetic transmitting system based on the tri-state boost converter is proposed in this paper. Results: The principle of the proposed transmitting system is analyzed. The topology of the proposed transmitting system is illustrated and the working modes of tri-state boost converter are given. Conclusion: The simulation model is established and the simulation experiment is carried out to verify the feasibility of the new electromagnetic transmitting system.

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