<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>AusSMC - Australian Science Media Centre &#187; Bushfire</title>
	<atom:link href="http://www.smc.org.au/tag/bushfire/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.smc.org.au</link>
	<description>Australian Science Media Centre</description>
	<lastBuildDate>Fri, 18 May 2012 06:34:32 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.3.1</generator>
		<item>
		<title>SCIENCE BLOG: What&#8217;s the science behind the new Fire Danger Ratings and community warnings?</title>
		<link>http://www.smc.org.au/2009/10/science-blog-whats-the-science-behind-the-new-fire-danger-ratings-and-community-warnings/</link>
		<comments>http://www.smc.org.au/2009/10/science-blog-whats-the-science-behind-the-new-fire-danger-ratings-and-community-warnings/#comments</comments>
		<pubDate>Thu, 15 Oct 2009 00:38:36 +0000</pubDate>
		<dc:creator>AusSMC</dc:creator>
				<category><![CDATA[Hot Topics]]></category>
		<category><![CDATA[Science Blog]]></category>
		<category><![CDATA[Bushfire]]></category>

		<guid isPermaLink="false">http://www.aussmc.org/?p=4110</guid>
		<description><![CDATA[Naomi Brown, Bushfire CRC Board Member This fire season the public can expect the warnings and community safety messages they receive to be much more direct. The wording of the messages acknowledges that most people will not be as prepared as they should be. So the information given is designed to optimize a person&#8217;s ability [...]]]></description>
			<content:encoded><![CDATA[<h1>Naomi Brown, Bushfire CRC Board Member<br />
</h1>
<p><span id="more-4110"></span></p>
<p>This fire season the public can expect the warnings and community safety messages they receive to be much more direct. The wording of the messages acknowledges that most people will not be as prepared as they should be. So the information given is designed to optimize a person&#8217;s ability to make quick decisions about what they should do. Hence messages in the Fire Danger Ratings (FDR) describe the expected fire behaviour, the potential impacts and what people should do.</p>
<p>Bushfire CRC research into human behavior shows that the majority of the people living in bushfire prone areas do not accept or are in denial about the risks they face; the &#8220;it won&#8217;t happen to me&#8221; effect. Many people also think they have a plan but it is not consistent with what a fire agency would class as a well thought out and effective plan. For example &#8211; many people&#8217;s plan is to wait and see what happens before deciding what to do, a highly inappropriate course of action. This research has greatly influenced the way emergency services agencies will now communicate with people.</p>
<p>The defendability of a home and its ability it to provide safe shelter as a fire front passes was the other key driver of changes to the Fire Danger Rating system.</p>
<p>Research conducted by Justin Leonard of the Bushfire CRC into the historical record of house and life loss compared to the Fire Danger Indices of the day showed that: homes begin to be lost at 50 FDI; there is a marked increase in house loss when fire occurs on FDI days of 75 and above; this increases exponentially once the ratings gets above 100 FDI; and loss of life follows a similar trend to house losses.</p>
<p>Fire Danger Indices are a relative number denoting an evaluation of the rate of spread, or fire suppression difficulty for specific combinations of temperature, relative humidity, drought effects and wind speed.</p>
<p>Previously &#8220;Extreme&#8221; was the highest fire danger rating. Any FDI above 50 was &#8220;Extreme&#8221; however this was too big a range and did not reflect the limitations this posed for advice on homes as places of safety during a fire, particularly at the higher end of the scale. So the new categories (and FDI scale classification) are a reflection of the increasing amount of extreme fire danger days and the historical patterns of house and life loss in fires compared to the Fire Danger Index. The Extreme category (75-99 FDI) is the upper limit of the FDI where well designed, constructed, prepared and actively defended homes may provide shelter from the fire. Current building standards for building in bushfire prone areas do not consider fires on days beyond a FDI of 100.</p>
<p>The Catastrophic category (100+) for the most extreme fire days, recognizes that well prepared, well constructed and defended homes may not be safe during the fire as construction standards do not go beyond a Fire Danger Index of 100. On both of these types of days agencies will advise people that leaving is the safest option as both the historical record and building standards tell us that it will be extremely difficult to defend homes against fires on these days.</p>
<p>&#8212;&#8212;&#8212;&#8212;-</p>
]]></content:encoded>
			<wfw:commentRss>http://www.smc.org.au/2009/10/science-blog-whats-the-science-behind-the-new-fire-danger-ratings-and-community-warnings/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>SCIENCE BLOG: Decoding Code Red</title>
		<link>http://www.smc.org.au/2009/10/science-blog-decoding-code-red/</link>
		<comments>http://www.smc.org.au/2009/10/science-blog-decoding-code-red/#comments</comments>
		<pubDate>Wed, 14 Oct 2009 00:40:25 +0000</pubDate>
		<dc:creator>AusSMC</dc:creator>
				<category><![CDATA[Hot Topics]]></category>
		<category><![CDATA[Science Blog]]></category>
		<category><![CDATA[Bushfire]]></category>
		<category><![CDATA[Fires]]></category>

		<guid isPermaLink="false">http://www.aussmc.org/?p=4112</guid>
		<description><![CDATA[Associate Professor Robert Heath, University of South Australia Associate Professor Robert Heath is a crisis management expert at the University of South Australia. Here he comments on the announcement by the Victorian Government that they have scrapped the stay or go policy in favour of evacuation on &#8216;code red&#8217; days where catastrophic fires are likely. [...]]]></description>
			<content:encoded><![CDATA[<h1>Associate Professor Robert Heath, University of South Australia</h1>
<p><span id="more-4112"></span></p>
<p><strong>Associate Professor Robert Heath is a crisis management expert at the University of South Australia. Here he comments on the announcement by the Victorian Government that they have scrapped the stay or go policy in favour of evacuation on &#8216;code red&#8217; days where catastrophic fires are likely.</strong></p>
<p>On some levels the Victorian Government changes to urge/direct evacuation as the only choice under Code Red (Catastrophic fire) may lead to more loss of property and life than would superficially appear.</p>
<p>Given an evaluation that covers the entire state of Victoria, to where do ALL Victorians evacuate?</p>
<p>Given that evacuation is recommended the night before a Catastrophic Fire condition, how can a respondent respond with no actual fire?</p>
<p>The one obvious level on which this change may work is where a fire on ground already exists (which has been the case) and extreme conditions indicate a megafire or catastrophe the next day.</p>
<p>A number of scenarios are apparently not considered.</p>
<p>The first is that despite such warnings, respondents wait virtually until they see the fire before evacuating &#8211; waiting to see whether conditions change. This is why we tend always to have a number of fatalities found within motor vehicles in major fire events. Cognitively I see the change thus having minimal impact, although the recency of the 2009 fires may prompt earlier and more evacuation responses than &#8220;normal&#8221; (until 3 or more years pass without an extreme event).</p>
<p>Duty of care problems will still remain. What happens where in the process of following the evacuation directive/recommendation on a forecast (next day) event, life or property is damaged or lost? Under the same circumstances, what happens when people are evacuated into a subsequent fire danger with damage/loss of life/property? What happens when the event by classification becomes not catastrophic but people evacuate on the conditional warning and subsequently lose property that may have been arguably protected/saved by their presence at the site being evacuated (not only from fire but any storm or theft)? Who will compensate for loss of business should the catastrophe fail to eventuate?</p>
<p>Whether compulsory in nature or not, agency/government directions to do a given act carry responsibility for outcomes.</p>
<p>People will continue to die in catastrophic fires. We need to ensure that a reduction in the number that may so die is not simply a dispersion of death process &#8212; wherein fewer die from direct catastrophic fire sources while increasing the number that may die from other sources (vehicle accidents, for example).</p>
<p>Ultimately, real risk of loss due to catastrophic fire management needs four conditions to be met:</p>
<p>1/ Acceptance by those with higher exposure to catastrophic bushfire/wildfire risk that they are highly exposed and are thus likely to lose property and possibly life in remaining in such exposure.</p>
<p>2/ Enforcement of appropriate insurance such that those who are underinsured understand they will lose the value of property loss (rather than hope that a generous government and even more generous public will cover the cost of such lifestyles of the grossly underinsured or non-insured.</p>
<p>3/ Appropriate and parallel legislation that- as fairly as possible demarks safety for people (and property) and for the environment and nature. This demarcation may indicate, for example, levels of countermeasures that can be clearly understood &#8211; from nature only (no protection) through to full protection with large no-growth and clearance zones required.</p>
<p>4/ Use of a clear rule of thumb &#8211; evacuate if people are old, incapacitated, young, unprepared, feeling incapable of protecting self, others, property and doing so on early warnings with even moderate fires. Structures are easier to replace than people.</p>
<p>There are examples even in catastrophic fires of staying and reducing the consequent losses, of staying and surviving, and of the reverse of losing property and life. The 2009 Victorian bushfire was no different. What we need to clearly comprehend is that staying to fight requires more capability than most sites and people have (and often a deal of luck). Without having experienced the physical and all-senses assault of a moderate or worse fire, however, most people cannot really comprehend the states of thought and consequent actions they may have until, in some cases, too late.</p>
<p>&#8212;&#8212;&#8212;&#8212;-</p>
]]></content:encoded>
			<wfw:commentRss>http://www.smc.org.au/2009/10/science-blog-decoding-code-red/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>SCIENCE BLOG: Response to the Royal Commission Interim Report into the Victorian Bushfires</title>
		<link>http://www.smc.org.au/2009/08/science-blog-response-to-the-royal-commission-interim-report-into-the-victorian-bushfires/</link>
		<comments>http://www.smc.org.au/2009/08/science-blog-response-to-the-royal-commission-interim-report-into-the-victorian-bushfires/#comments</comments>
		<pubDate>Thu, 20 Aug 2009 00:42:42 +0000</pubDate>
		<dc:creator>AusSMC</dc:creator>
				<category><![CDATA[Hot Topics]]></category>
		<category><![CDATA[Science Blog]]></category>
		<category><![CDATA[Bushfire]]></category>
		<category><![CDATA[Fires]]></category>

		<guid isPermaLink="false">http://www.aussmc.org/?p=4116</guid>
		<description><![CDATA[Associate Professor Robert Heath Crisis management expert at the University of South Australia The 2009 Victorian Bushfires Royal Commission has just released its interim report into the &#8216;Black Saturday&#8217; Victorian bushfires. The Commission was established on 16 February to investigate the causes and responses to the bushfires which swept through parts of Victoria in late [...]]]></description>
			<content:encoded><![CDATA[<h1>Associate Professor Robert Heath<br />
 Crisis management expert at the University of South Australia </h1>
<p><span id="more-4116"></span></p>
<p><strong>The 2009 Victorian Bushfires Royal Commission has just released its interim report into the &#8216;Black Saturday&#8217; Victorian bushfires. The Commission was established on 16 February to investigate the causes and responses to the bushfires which swept through parts of Victoria in late January and February 2009. The Final Report is due July 2010.</strong></p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>To respond in any detail worth providing to a 240+ page Interim Report with 54 recommendations takes some space. There are no surprises given the amount of information coming from the proceedings and generally presented from one source or another prior to the report publication. Likewise, in general, the recommendations are reasonable and make sense. Indeed most reflect points I forwarded to the Victorian Premier&#8217;s Office in the days and weeks immediately following the 7th-8th February 2009.The three commissioners appear to have done their best within the parameters of the Commission and worked with integrity and zeal.</p>
<p>Having said this, there are some issues and concerns that can be raised from the recommendations and text found in the report.</p>
<p><strong>Recommendations &#8212; Some Issues and Concerns</strong></p>
<p>Broadly, the recommendations from the chapter 4 (warnings) are not unexpected. Indeed many of the states since February 7 have been working separately and together to develop better warning systems and approaches and to improving communications. I applaud the recommendations covering the need for uniformity and consistency of message and message content that is emphasised in this and the next chapter. However, there is to some extent an absence of complete understanding of the nature of crisis for all involved and the operational and psychological impacts this has on management decision-making and communications inside and outside a given organisation or set of organisations.</p>
<p>Crisis (and region-sized natural disasters) by definition mean missing and suspect information along with demands that exceed the resources available. Succinctly, there is a difference between incidents (a singular or set of definable situations) and a multi-focal event that also may threaten the lives of respondents. Few are trained to cope at the strategic (command) end to deal with the number and variety of apparently instantaneous decisions needed is crisis situations. Moreover, response agencies by their own culture (and protocols and systems designed to effectively manage incidents) can find difficulties in effectively and quickly transforming to an almost out-of-control situation.</p>
<p><strong>There are also concerns about the nature, specificity and the capability of warnings and information provision.</strong> Public and individual expectations are not being managed particularly well in our communities. Perhaps this is due to political or agency lack of will to bluntly tell the public that they may be on their own if a situation/event/disaster is big enough. We could double the assets, resources, and personnel and still not necessarily guarantee the safety of all property and all people.</p>
<p>The report and recommendations appear to have an overemphasis on technical fixes as a complete solution to warnings and information (which may be due to the commissioning parameters). Regional natural disasters will have missing, uncertain and indeed even poorly updated information. <em><strong>Given the nature of the most serious fires and the climactic conditions on February 7, communications are likely to fail given atmospheric, fire impact, potential failure of power supply, distortion and loss of telecommunications systems. </strong></em></p>
<p>Moreover there needs to be more specific definition about what is meant by warnings. In the days preceding the fire, efforts were made across the media to warn people of the possible danger of the coming day. The trouble is that management and commentators fail to understand some basic human behaviour. Many people do not like leaving their property which could be vandalised or burgled or somehow lost and not lost if they had stayed. The need to wait for, or find, or clear actions with other members of families or communities leads to waiting and indecision. Others feel they would be embarrassed among community or family should they leave (or leave and nothing eventuates). Others hesitate because of lost time or income. In short, people find reasons not to act quickly. This is true anywhere in the world.</p>
<p><em>What this means is that even with better warnings and better education people will be reluctant to go</em>. A broad rule-of-thumb (the Pareto Principle) leads to a suggestion that about 80% of a given population will obey an order to Stay or go (depending, of course, on how compulsory that order may be and how forcefully such an order may be enforced).</p>
<p><strong>Adding extra numeric data such as Danger Indices may not necessarily lead to any better behaviour.</strong> There is some social research, for example, about behaviour in hurricanes and tornadoes in America which appears to indicate mire complacency due to vague understanding of the facts attached to events that meet a given scale value.</p>
<p>In major wildfire or bushfire situations the amount of smoke surrounding a large blaze tends to diminish any ability to accurately assess immediate danger. Smoke is everywhere at least as a haze and even as a horizon cloud. Moreover, waiting till almost the last minute has in itself dangers as was stated in warning advertisements and statements prior to this fire. Last minute evacuations/relocations can place people into road hazard accidents and even into fire &#8211; there are very few direct straight roads with little vegetation around them and six lanes wide.</p>
<p><strong>There are issues with the beliefs possibly surrounding recommendation to make information and the alarms more consistent and more timely and up-to-date. </strong></p>
<p>1. Access to communications in a region under immediate and obvious threat may be more limited than expected.<br />
 2. People may not be attending their communication tools or these tools may not be on or functional.<br />
 3. An increase in hits or contacts on websites may make it almost impossible for updates to be made should those updates be also coming through the same telecommunications system. <br />
 4. No matter how many resources we make available, when a real crisis situation arises information access and provision tends to fail. This impacts on updating information. <br />
 5. Specific local conditions are likely to be site specific and variable and thus impossible to predict in order for timely (last minute) information.</p>
<p><strong>The use of sirens.</strong> While the recommendation to use sirens is acceptable, we need to understand that sirens may not work &#8212; power supply failure or local conditions can adversely impact such systems. How many sirens would be needed in a locality? Sirens are often used to assemble fire-fighters and would probably have been used earlier in the action. Should the fire service members already be away, who is available to actually to sound the siren? When sirens are used, people often go out on the sound of the siren to assess conditions and often make a decision that is dangerous to them. Should a community expect a siren then absence of the siren may negatively impact consequent behaviour. At what point/timeline moment is the siren sounded to mean what action by the community members?</p>
<p><strong>Chapter 6 (Relocation).</strong> Setting aside semantic arguments about the use of relocation and evacuation (perhaps yet another palliative rather than an action word-use &#8211; do not frighten people), there are some duty of care and placement concerns over use of relocations to refuges. This by no means argues against having refuges but rather points out that we need to understand the physical needs of such sites and possible negative cognitive consequences of people further delaying &#8220;go&#8221; decisions because there exists a local refuge nearby.</p>
<p>One need for any refuge is to have ample parking space nearby so that people can get themselves to the place of safety. Perhaps we could effectively use some of the federal government infrastructure financing to re-construct safer refuge in school structures. Refuges should be identified and even reconstructed to meet more than one hazard for refuges to be effective and worthwhile investments. Finally, I would like to see a more precise definition of relocation &#8212; is this during an incident or is this prior to an incident in which case we could have numbers of people at that refuge for a number of hours if not a number of days or even weeks.</p>
<p><strong>Stay or go.</strong> This concept seems to be the most debated issue. On one level there is nothing wrong with the concept &#8212; indeed, as was identified even in Australia in research into bushfires, property can be saved and protected by residents remaining to protect that property. This is the case with small far less intense &#8220;local&#8221; fires. There are probably some properties and people who survived the Victorian bushfires who did in fact stay and fight &#8211; so we do need to see the numbers of survivors not just of deaths inside dwellings.</p>
<p><strong>The most important factor of stay or go is that decision needs to be made early &#8212; probably at least 6 hours to 24 hours before the fire is in the immediate vicinity.</strong> Waiting until a fire front is within 10 to 15 km from a site in these conditions makes any departure/evacuation/relocation decision dangerous.</p>
<p>There are recommendations for further education and the question is whether further education (while in itself appropriate and applaudable) will really change significant activity by individuals or communities. As noted above, there is a reluctance to move. <em>Part of the problem is that people expect that they have their own &#8220;safety net&#8221; or &#8220;protector&#8221; that will either come and warn or protect them.</em> In significantly large crisis situations such as major or mega-fires this may be very unlikely.</p>
<p><strong>Chapter 8 (Risk).</strong> Many of the recommendations are quite appropriate and are indeed being seriously tested in many of the States of Australia.</p>
<p><strong>One issue with such efforts, however, is the general tendency of risk management in evaluating risk to rely too much on historic technical knowledge and data.</strong> Not enough coverage is given behavioural and perceptual risk which means the risk evaluation will not lead necessarily to public protection strategies that work. Technical data is also historic &#8211; and thus not necessarily full or accessible or as reliable as the data may suggest. Moreover, such data alone does not reflect climate change and geographical/landform changes over time and thus may be (criminally) misleading.</p>
<p>Those undertaking or performing such community evaluations are likely to be inexperienced and non-expert to properly do current and suggested regional/community hazard risk assessments &#8211; and this may also weaken the utility and probity of such information alone. Having noted this, any risk-based effort is better than none.</p>
<p><strong>Chapter 9 (incident management). </strong>The recommendations are generally appropriate. We do need to note that changes in duties for any particular role/personnel really need to lead to changes in the roles and responsibilities of many within a given team. Without proper and close support I doubt whether many people will become interested in being Incident Manages/Controllers if they have to undertake the extended duties on their own.</p>
<p><strong>Chapter 10 (emergency management).</strong> Again, the broad recommendations made here are appropriate. <strong>Having said this, there is probably a need to rethink even the basic elements of state emergency plans. </strong>This is because of the speed with which incidents happen and the broader and more complex situations in which response agencies, the State, and those caught in a serious region sized crisis are exposed. There are more potential critical situations that may be triggered by an original crisis &#8211; from chemical contamination and disease through to dealing with survivors over time.</p>
<p><strong>Certainly the recommendations suggesting that training and amplification for senior emergency roles and activities are good.</strong> Personally, I have pressed on both the Prime Minister&#8217;s Office and the Federal Attorney General&#8217;s Office the need for better training, advisory services, and mentoring for those people in our nation who may be charged with managing the response and the recovery in regional or bigger crisis situations. I provided a detailed plan in which very quickly numbers of people from across all agencies may gain greater insight to both crisis management and the interaction and inter-operability of their agencies. Categorically, managing in a crisis situation is unlike normal management in organisations. I do in particular support recommendations made in Chapter 11 (Commonwealth response).</p>
<p><strong>Other Issues.</strong> There are at least four issues still needing attention either by this commission or by the agencies and governments in Australia.</p>
<p>1. <strong>Making compatible environmental regulation and human safety.</strong> This is probably an each way activity in the sense that some regulation needs to be mollified so that people can make themselves and their property safer, and in other places people may need to be warned and even accept that the environment takes precedent over their presence &#8211; which means they may lose their dwelling every 10-29 years and build and act accordingly. This also has connections with fuel burning &#8212; and Australians need to understand that Australia (over millennia) has had a natural cycle of regeneration of vegetation by fire.</p>
<p>2. <strong>Construction of onsite/individual dwelling below ground safety rooms.</strong> While not addressed in the interim report, this issue has had much public and continued discussion. There are some concerns in terms of duty of care in such an approach (and I would not wish to be a legislator, regulation enforcer, builder, or owner of any such legislated structure as there is an implicit belief about safety and duty of care should such structures fail.</p>
<p>For example use of below ground structures as exemplified by tornado shelters may be inappropriate. Concrete bunkers with steel doors may end up acting as ovens, may eventually lose oxygen, and may be sealed by distortion of door frames. Over the last century in Victoria, safety &#8220;holes&#8221; have proved useful &#8212; from caves and mine entrances through to sawdust pits and excavated holes or &#8220;scrapes&#8221;. We need to remember that the primary need for fire safety in such situations is the deflection and reduction of radiant heat.</p>
<p>3. <strong>Regulation and desire.</strong> While people may wish a beautiful treescape lifestyle, this has an equal downside from falling timber in storms and increased fire danger. We need to legislatively balance environmental protection needs with public and individual access and use of high-risk areas.</p>
<p>4. <strong>Manage public and individual expectations more appropriately.</strong> Somewhere and at sometime someone will have to &#8220;bite the bullet&#8221; and admit that the public cannot always be made safe in all situations. One element missing from most of the report is the accountability and responsibility of individuals in crisis-level situations. Lifestyle and media sources tend to suggest that everything should be safe and &#8220;unchanging&#8221; and non-threatening &#8211; and this fundamentally is not necessarily so.</p>
]]></content:encoded>
			<wfw:commentRss>http://www.smc.org.au/2009/08/science-blog-response-to-the-royal-commission-interim-report-into-the-victorian-bushfires/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>

