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An open multi-physics framework for modelling wildland-urban interface fire evacuations

Title: An open multi-physics framework for modelling wildland-urban interface fire evacuations
Authors: Ronchi, E
Gwynne, SMV
Rein, G
Intini, P
Wadhwani, R
Item Type: Journal Article
Abstract: Fire evacuations at wildland-urban interfaces (WUI) pose a serious challenge to the emergency services, and are a global issue affecting thousands of communities around the world. This paper presents a multi-physics framework for the simulation of evacuation in WUI wildfire incidents, including three main modelling layers: wildfire, pedestrians, and traffic. Currently, these layers have been mostly modelled in isolation and there is no comprehensive model which accounts for their integration. The key features needed for system integration are identified, namely: consistent level of refinement of each layer (i.e. spatial and temporal scales) and their application (e.g. evacuation planning or emergency response), and complete data exchange. Timelines of WUI fire events are analysed using an approach similar to building fire engineering (available vs. required safe egress times for WUI fires, i.e. WASET/WRSET). The proposed framework allows for a paradigm shift from current wildfire risk assessment and mapping tools towards dynamic fire vulnerability mapping. This is the assessment of spatial and temporal vulnerabilities based on the wildfire threat evolution along with variables related to the infrastructure, population and network characteristics. This framework allows for the integration of the three main modelling layers affecting WUI fire evacuation and aims at improving the safety of WUI communities by minimising the consequences of wildfire evacuations.
Issue Date: 1-Oct-2019
Date of Acceptance: 6-Jun-2019
URI: http://hdl.handle.net/10044/1/73990
DOI: https://dx.doi.org/10.1016/j.ssci.2019.06.009
ISSN: 0925-7535
Publisher: Elsevier
Start Page: 868
End Page: 880
Journal / Book Title: Safety Science
Volume: 118
Copyright Statement: © 2019 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Fire Protection Research Foundation Inc
Funder's Grant Number: See Further Info
Keywords: Science & Technology
Technology
Engineering, Industrial
Operations Research & Management Science
Engineering
Wildland-urban interface (WUI)
Fire
Evacuation
Modelling
Decision making
WILDFIRE EVACUATION
SIMULATION
BEHAVIOR
SURFACE
Science & Technology
Technology
Engineering, Industrial
Operations Research & Management Science
Engineering
Wildland-urban interface (WUI)
Fire
Evacuation
Modelling
Decision making
WILDFIRE EVACUATION
SIMULATION
BEHAVIOR
SURFACE
Human Factors
09 Engineering
11 Medical and Health Sciences
17 Psychology and Cognitive Sciences
Publication Status: Published
Online Publication Date: 2019-06-21
Appears in Collections:Mechanical Engineering
Faculty of Engineering