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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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.

Detaljer

Författare
  • Enrico Ronchi
  • Steven M.V. Gwynne
  • Guillermo Rein
  • Paolo Intini
  • Rahul Wadhwani
Enheter & grupper
Externa organisationer
  • National Research Council of Canada
  • Imperial College London
  • Polytechnic University of Bari
  • Victoria University
  • Movement Strategies
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Annan samhällsbyggnadsteknik

Nyckelord

Originalspråkengelska
Sidor (från-till)868-880
Antal sidor13
TidskriftSafety Science
Volym118
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa