A HANDBOOK of WILDFIRE ENGINEERING Guidance for Wildfire Suppression and Resilient Urban Design

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A HANDBOOK of WILDFIRE ENGINEERING Guidance for Wildfire Suppression and Resilient Urban Design A HANDBOOK OF WILDFIRE ENGINEERING Guidance for wildfire suppression and resilient urban design Greg Penney, Daryoush Habibi & Marcus Cattani Edith Cowan University, Western Australia A HANDBOOK OF WILDFIRE ENGINEERING | REPORT NO. 590.2020 Version Release history Date 1.0 Initial release of document 04/09/2020 All material in this document, except as identified below, is licensed under the Creative Commons Attribution- Non-Commercial 4.0 International Licence. Material not licensed under the Creative Commons licence: • Department of Industry, Science, Energy and Resources logo • Cooperative Research Centres Program logo • Bushfire and Natural Hazards CRC logo • Any other logos • All photographs, graphics, tables and figures All content not licenced under the Creative Commons licence is all rights reserved. Permission must be sought from the copyright owner to use this material. Disclaimer: Edith Cowan University and the Bushfire and Natural Hazards CRC advise that the information contained in this publication comprises general statements based on scientific research. The reader is advised and needs to be aware that such information may be incomplete or unable to be used in any specific situation. No reliance or actions must therefore be made on that information without seeking prior expert professional, scientific and technical advice. To the extent permitted by law, Edith Cowan University and the Bushfire and Natural Hazards CRC (including its employees and consultants) exclude all liability to any person for any consequences, including but not limited to all losses, damages, costs, expenses and any other compensation, arising directly or indirectly from using this publication (in part or in whole) and any information or material contained in it. A Handbook of Wildfire Engineering forms part of the primary author’s PhD by publication “Wildfire suppression – an international analysis of operations, strategy and firefighter safety “. It is a non-commercial extension of the author’s peer reviewed published journal articles. These articles are acknowledged as: 1. Penney, G. (2019) Exploring ISO31000 Risk Management during Dynamic Fire and Emergency Operations in Western Australia, Fire 2 (21) 1-20. DOI: 10.3390/fire2020021 2. Penney, G., Habibi, D., Cattani, M. (2019a). Firefighter tenability and its influence on siege wildfire suppression. Fire Safety Journal, 106, pp38-51, DOI: 10.1016/j.firesaf.2019.03.012 3. Penney, G., Habibi, D., Cattani, M., Carter, M. (2019b). Calculation of Critical Water Flow Rates for Wildfire Suppression. Fire, 2 (3), 1-12, DOI: doi:10.3390/fire2010003 4. Penney, G., Habibi, D., Cattani, M. (2020a). RUIM – a fire safety engineering model for Rural Urban Interface firefighter taskforce deployment. Fire Safety Journal, 113, pp1-12. DOI: 10.1016/j.firesaf.2020.102986 5. Penney, G., Habibi, D., Cattani, M. (2020b). Improving firefighter tenability during entrapment and burnover: an analysis of vehicle protection systems. Fire Safety Journal, doi: 10.1016/j.firesaf.2020.103209 6. Penney, G.; Stevenson, R (2019). Modelling of the Radiant Heat Flux and Rate of Spread of Wildfire within the Urban Environment. Fire, 2 (1), 1-24. DOI: 10.3390/fire2010004 Publisher: Bushfire and Natural Hazards CRC ISBN: 978-0-6482756-8-8 Report No: 590.2020 September 2020 Citation: Penney G, Habibi D & Cattani M (2020) A Handbook of Wildfire Engineering, Bushfire and Natural Hazards CRC, Melbourne. Cover: Cover photo used with the permission of the Department of Fire and Emergency Services, Western Australia, Photographer: Evan Collis i A HANDBOOK OF WILDFIRE ENGINEERING | REPORT NO. 590.2020 AUTHORS Greg Penney, Edith Cowan University, Western Australia Greg Penney is the primary author. With over 14 years’ experience as a career urban and wildland firefighter / officer in Western Australia (in both metropolitan and country commands), amongst other qualifications he holds a MEng (Building Fire Safety & Risk), MParamedScRes (Risk), GDip Bushfire Protection and Bachelor of Science. During the devastating Waroona/Yarloop wildfires of 2016, Greg received a commendation for distinguished service and outstanding actions in leading the defence of Preston Beach facing catastrophic wildfire conditions. A Handbook of Wildfire Engineering builds upon his two existing Masters dissertations and serves as part of his current PhD by publication “Wildfire suppression – an international analysis of operations, strategy and firefighter safety”. As a subject matter expert, Greg developed the inaugural Fire Protection Association of Australia (FPAA’s) Bushfire Protection and Design Accreditation (BPAD) Level 1 course and has previously consulted in the field to the Department of Defence, NBN Co, Western Australian branches of Master Builders Australia, Australian Institute of Building Surveyors, Australian Institute of Architects, Local Governments and private industry. In his current fire service role Greg leads the development and delivery of Incident Management training, including strategic and tactical fire and rescue response across a large range of hazards including wildfire, urban fire, rescue and Hazardous Materials. Greg is not only a highly qualified researcher in the field of wildfire engineering and suppression, he is also a decorated firefighter with extensive experience in both planning and engineering in areas prone to wildfire impacts. As a researcher and lecturer at Edith Cowan University, Greg specialises in risk engineering, occupational safety and business continuity planning. Daryoush Habibi, Edith Cowan University, Western Australia Professor Daryoush Habibi is the Executive Dean of Engineering at Edith Cowan University. Professor Habibi is a professional engineer with 27 years of experience in industry and academia. Prior to his appointment as the Dean of Engineering, he was the Head of School of Engineering from 2006 to 2015, during which time he initiated and led a program of rapid growth in ECU’s engineering portfolio, making his School the fastest growing engineering school in the nation. His other professional experience includes Telstra Research Laboratories, Flinders University, and Intelligent Pixels Inc., where he served as Vice-President Engineering. Professor Habibi holds the degrees of Bachelor of Engineering (Hons) and Doctor of Philosophy, both from the University of Tasmania. He is a Fellow of Engineers Australia, and a Fellow of the Institute of Marine Engineering, Science and Technology. Professor Habibi is one of Greg’s PhD supervisors and is credited for his review and contribution to this Handbook. Marcus Cattani, Edith Cowan University, Western Australia Dr Marcus Cattani is a Senior Lecturer in Occupational Health and Safety at Edith Cowan University. Dr. Marcus Cattani has worked as an academic, occupational hygienist, HSE Manager and consultant in the chemical, manufacturing, engineering and resources industries since 1988. Marcus is passionate about improving the management of injury risk to an acceptable level, and assisting organisations develop the risk management partnerships required to achieve this. Dr. Cattani’s research focusses on the development of educational materials to assist organisations understand and manage risk, and, the development of processes to measure risk. Marcus is the Chair of the WA Branch of the Safety Institute of Australia, a member of the ECU Sustainability in Education Committee, attends the Chamber of Minerals and Energy OSH Committee, sits on the ECU Vice Chancellors HSE Awards Committee, and the School OHS Committee. Dr Cattani is one of Greg’s PhD supervisors and is credited for his review and contribution to this Handbook. ii A HANDBOOK OF WILDFIRE ENGINEERING | REPORT NO. 590.2020 ACKNOWLEDGMENTS Dr Steven Richardson is acknowledged for his contributed to Chapter 3 – Modelling wildfire radiant heat flux, and is credited with the alternate view factor equations to AS3959. Steven Richardson is a Senior Lecturer at Edith Cowan University. He completed a PhD in Applied Mathematics in 2007 at The University of Western Australia. His research interests are broadly in mathematical modelling, having been involved in projects related to optimal control, asset management, bush fires, traffic, aviation and optics. The support provided by the Bushfire and Natural Hazards Cooperative Research Centre; Department of Fire and Emergency Services of Western Australia; and the Department of Biodiversity, Conservation and Attractions is gratefully acknowledged. The research and all the associated publications would not have been possible without the assistance of these agencies. The research completed during the PhD was supported by an Australian Government Research Training Program (RTP) Scholarship. iii A HANDBOOK OF WILDFIRE ENGINEERING | REPORT NO. 590.2020 Contents Introduction ................................................................................................................................ vii 1. Wildfire Fuels ...................................................................................................................... 1-1 1.1 Introduction .............................................................................................................. 1-1 1.2 Vegetation structure ................................................................................................ 1-1 1.3 Consideration of wildfire fuel in empirical models ............................................... 1-4 1.4 Consideration of sub-landscape scale vegetation geometry .......................
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