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	<title>Dark Matter</title>
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	<description>Emergence, Complexity, Chaos &#38; Technological Risk</description>
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		<title>Dark Matter</title>
		<link>http://msquair.wordpress.com</link>
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		<item>
		<title>24 Hours at Fukushima</title>
		<link>http://msquair.wordpress.com/2012/01/17/24-hours-at-fukushima/</link>
		<comments>http://msquair.wordpress.com/2012/01/17/24-hours-at-fukushima/#comments</comments>
		<pubDate>Tue, 17 Jan 2012 00:06:15 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Common cause failures]]></category>
		<category><![CDATA[Nuclear Power Safety]]></category>
		<category><![CDATA[organisational safety cultures]]></category>
		<category><![CDATA[System architecting]]></category>
		<category><![CDATA[disaster response]]></category>
		<category><![CDATA[Fukushima]]></category>

		<guid isPermaLink="false">https://msquair.wordpress.com/?p=5029</guid>
		<description><![CDATA[In an article published in the online magazine Spectrum Eliza Strickland has charted the first 24 hours at Fukushima. A sobering description of the difficulty of the task facing the operators in the wake of the tsunami. Her article identified a number of specific lessons about nuclear plant design, so in this post I thought [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=5029&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">Fukushima - the second wave (Image source: Unknown)</media:title>
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	</item>
		<item>
		<title>UK Track Operatives Strategic Safety Action Statement</title>
		<link>http://msquair.wordpress.com/2012/01/16/uk-track-operatives-strategic-safety-action-statement-2009-2011/</link>
		<comments>http://msquair.wordpress.com/2012/01/16/uk-track-operatives-strategic-safety-action-statement-2009-2011/#comments</comments>
		<pubDate>Sun, 15 Jan 2012 21:41:51 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Humour]]></category>
		<category><![CDATA[Safety plans]]></category>
		<category><![CDATA[TOSSAS]]></category>
		<category><![CDATA[UK Rail]]></category>

		<guid isPermaLink="false">http://msquair.wordpress.com/?p=5023</guid>
		<description><![CDATA[The UK  Track Operatives Strategic Safety Action Statement for 2009-2011 is now available here. They don&#8217;t get much better than this Filed under: Humour Tagged: Safety plans, TOSSAS, UK Rail<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=5023&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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		<title>Spiky Data, Means, Medians and Memes</title>
		<link>http://msquair.wordpress.com/2011/12/23/spiky-data-means-and-memes/</link>
		<comments>http://msquair.wordpress.com/2011/12/23/spiky-data-means-and-memes/#comments</comments>
		<pubDate>Fri, 23 Dec 2011 01:58:58 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Aerospace Safety]]></category>
		<category><![CDATA[Fault tolerance]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[arithmetic]]></category>
		<category><![CDATA[geometric]]></category>
		<category><![CDATA[Population statistics]]></category>
		<category><![CDATA[QF 72]]></category>
		<category><![CDATA[spiky data]]></category>

		<guid isPermaLink="false">http://msquair.wordpress.com/?p=4947</guid>
		<description><![CDATA[In an earlier post I commented that in the QF72 incident the use of a geometric mean (1) instead of the arithmetic mean when calculating the aircrafts angle of attack would have reduced the severity of the subsequent pitch over. Which leads into the more general subject of what to do when the real world [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4947&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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		<item>
		<title>On Possibilistic Design and Aviation Safety</title>
		<link>http://msquair.wordpress.com/2011/12/11/on-possibilistic-design-and-aviation-safety/</link>
		<comments>http://msquair.wordpress.com/2011/12/11/on-possibilistic-design-and-aviation-safety/#comments</comments>
		<pubDate>Sun, 11 Dec 2011 08:32:48 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Aerospace Safety]]></category>
		<category><![CDATA[Complexity]]></category>
		<category><![CDATA[Epistemic Risk]]></category>
		<category><![CDATA[fail safe]]></category>
		<category><![CDATA[Uncertainty]]></category>
		<category><![CDATA[AC 25.1309-1 (1988)]]></category>
		<category><![CDATA[DO-178B]]></category>
		<category><![CDATA[FAR Part 25]]></category>
		<category><![CDATA[Fukushima]]></category>
		<category><![CDATA[IEC 61508]]></category>
		<category><![CDATA[John Downer]]></category>
		<category><![CDATA[Myth of Mechanical Objectivity]]></category>
		<category><![CDATA[Possibilistic]]></category>
		<category><![CDATA[Probabilistic]]></category>
		<category><![CDATA[Risk]]></category>

		<guid isPermaLink="false">https://msquair.wordpress.com/?p=4916</guid>
		<description><![CDATA[I've recently been reading John Downer on what he terms the Myth of Mechanical Objectivity. To summarise John's argument he points out that once the risk of an extreme event has been 'formally' assessed as being so low as to be acceptable it becomes very hard for society and it's institutions to justify preparing for it.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4916&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://msquair.wordpress.com/2011/12/11/on-possibilistic-design-and-aviation-safety/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
	
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			<media:title type="html">matthewsquair</media:title>
		</media:content>

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			<media:title type="html">B747-400 (Image Source: Arpingtone)</media:title>
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		<item>
		<title>When All You Have is a Hammer&#8230;</title>
		<link>http://msquair.wordpress.com/2011/09/19/when-all-you-have-is-a-hammer/</link>
		<comments>http://msquair.wordpress.com/2011/09/19/when-all-you-have-is-a-hammer/#comments</comments>
		<pubDate>Mon, 19 Sep 2011 02:26:12 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Cognitive psychology]]></category>
		<category><![CDATA[System architecting]]></category>
		<category><![CDATA[The human machine interface]]></category>
		<category><![CDATA[cognitive engineering]]></category>
		<category><![CDATA[glass cockpit]]></category>
		<category><![CDATA[HMI]]></category>

		<guid isPermaLink="false">http://msquair.wordpress.com/?p=4897</guid>
		<description><![CDATA[I was thinking about the the current generation of software intensive and visually dominant displays and more particularly about mismatch between what these displays provide versus what humans in the loop need...<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4897&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://msquair.wordpress.com/2011/09/19/when-all-you-have-is-a-hammer/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
	
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			<media:title type="html">Hammer (Image Source: Malene Thyssen)</media:title>
		</media:content>
	</item>
		<item>
		<title>Pilots in the Loop? Airbus and the FBW Side Stick</title>
		<link>http://msquair.wordpress.com/2011/09/16/pilots-in-the-loop-airbus-and-the-fbw-side-stick/</link>
		<comments>http://msquair.wordpress.com/2011/09/16/pilots-in-the-loop-airbus-and-the-fbw-side-stick/#comments</comments>
		<pubDate>Fri, 16 Sep 2011 01:52:08 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Aerospace Safety]]></category>
		<category><![CDATA[Cognitive psychology]]></category>
		<category><![CDATA[Human error]]></category>
		<category><![CDATA[The human machine interface]]></category>
		<category><![CDATA[Violations]]></category>
		<category><![CDATA[AF 447]]></category>
		<category><![CDATA[AirBus]]></category>
		<category><![CDATA[ATSB]]></category>
		<category><![CDATA[crew coordination]]></category>
		<category><![CDATA[FBW]]></category>
		<category><![CDATA[NTSB]]></category>
		<category><![CDATA[side stick controller]]></category>

		<guid isPermaLink="false">http://msquair.wordpress.com/?p=4866</guid>
		<description><![CDATA[Airbuses side stick improves crew comfort and control, but is there a hidden cost? The Airbus FBW side stick flight control has vastly improved the comfort of aircrew flying the Airbus fleet, much as the original Airbus designers predicted (Corps, 188). But the implementation also expresses the Airbus approach to flight control laws and that [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4866&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://msquair.wordpress.com/2011/09/16/pilots-in-the-loop-airbus-and-the-fbw-side-stick/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
	
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			<media:title type="html">matthewsquair</media:title>
		</media:content>

		<media:content url="http://msquair.files.wordpress.com/2011/09/images.jpeg" medium="image">
			<media:title type="html">The Airbus Side stick/FBW implementation (Image Source: Unknown)</media:title>
		</media:content>
	</item>
		<item>
		<title>Sea Walls and Epistemic Risk</title>
		<link>http://msquair.wordpress.com/2011/08/29/sea-walls-and-epistemic-risk/</link>
		<comments>http://msquair.wordpress.com/2011/08/29/sea-walls-and-epistemic-risk/#comments</comments>
		<pubDate>Mon, 29 Aug 2011 05:41:03 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Assumptions]]></category>
		<category><![CDATA[Uncertainty]]></category>
		<category><![CDATA[coastal defences]]></category>
		<category><![CDATA[earthquake]]></category>
		<category><![CDATA[japanese 2011 tsunami]]></category>
		<category><![CDATA[overtopping]]></category>
		<category><![CDATA[seawalls]]></category>
		<category><![CDATA[subsidence]]></category>
		<category><![CDATA[tsunami]]></category>

		<guid isPermaLink="false">http://msquair.wordpress.com/?p=4823</guid>
		<description><![CDATA[It appears that the designers of seawalls for the Japanese coastal cities affected by the 2011 earthquake did not consider all the combinations of environmental factors that set the effective height of a tsunami.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4823&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">matthewsquair</media:title>
		</media:content>

		<media:content url="http://msquair.files.wordpress.com/2011/08/taro-team-inspection-on-wall-150-600x400.jpg" medium="image">
			<media:title type="html">The Taro Seawall (Image Source: J. Wilson EERI/ISSS Team)</media:title>
		</media:content>
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		<item>
		<title>National Single Points of Failure</title>
		<link>http://msquair.wordpress.com/2011/08/28/national-single-points-of-failure/</link>
		<comments>http://msquair.wordpress.com/2011/08/28/national-single-points-of-failure/#comments</comments>
		<pubDate>Sun, 28 Aug 2011 04:35:00 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Climate risk]]></category>
		<category><![CDATA[Systems of Systems]]></category>
		<category><![CDATA[fluvial pressure]]></category>
		<category><![CDATA[glacial retreat]]></category>
		<category><![CDATA[Mississippi river floods]]></category>
		<category><![CDATA[National infrastructure]]></category>
		<category><![CDATA[Old River Control Structure]]></category>
		<category><![CDATA[single point of failure]]></category>
		<category><![CDATA[US Army Corp. of Engineers]]></category>

		<guid isPermaLink="false">http://msquair.wordpress.com/?p=4805</guid>
		<description><![CDATA[The Mississippi River&#8217;s Old River Control Structure, a National Single Point of Failure? Given the recent events in Fukushima and our subsequent western cultural obsession with the radiological consequences, perhaps it&#8217;s appropriate to reflect on other non-nuclear vulnerabilities. As a case in point what about the Old River Control Structure erected by those busy chaps [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4805&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">matthewsquair</media:title>
		</media:content>

		<media:content url="http://msquair.files.wordpress.com/2011/08/oldriver_aerial.jpg" medium="image">
			<media:title type="html">Aerial view of the Old River Control Structure (Image Source: US Army Corp of Engineers -Public Domain)</media:title>
		</media:content>
	</item>
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		<title>Out of the Loop</title>
		<link>http://msquair.wordpress.com/2011/08/14/out-of-the-loop/</link>
		<comments>http://msquair.wordpress.com/2011/08/14/out-of-the-loop/#comments</comments>
		<pubDate>Sun, 14 Aug 2011 04:29:27 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Aerospace Safety]]></category>
		<category><![CDATA[Cognitive psychology]]></category>
		<category><![CDATA[Uncertainty]]></category>
		<category><![CDATA[attentional tunneling]]></category>
		<category><![CDATA[automation cost]]></category>
		<category><![CDATA[Bayesian reasoning\]]></category>
		<category><![CDATA[cry wold effect]]></category>
		<category><![CDATA[human error]]></category>
		<category><![CDATA[perceptual biases]]></category>

		<guid isPermaLink="false">https://msquair.wordpress.com/2011/08/14/the-wolf-in-the-fold-effect/</guid>
		<description><![CDATA[The BEA's third interim report on AF 447 highlights the vulnerability of aircrew when their usually highly reliable automation fails in the challenging operational environment of high altitude flight.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4739&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>2</slash:comments>
	
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			<media:title type="html">matthewsquair</media:title>
		</media:content>

		<media:content url="http://msquair.files.wordpress.com/2011/08/engine-a.jpg" medium="image">
			<media:title type="html">Engine A of AF447 at rest on the abyssal plain (Image Source: BEA)</media:title>
		</media:content>
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		<item>
		<title>The Phantom Menace, or the Crossing that Never Was&#8230;</title>
		<link>http://msquair.wordpress.com/2011/08/10/a-false-affordance-hazard/</link>
		<comments>http://msquair.wordpress.com/2011/08/10/a-false-affordance-hazard/#comments</comments>
		<pubDate>Wed, 10 Aug 2011 03:20:07 +0000</pubDate>
		<dc:creator>Matthew Squair</dc:creator>
				<category><![CDATA[Affordances]]></category>
		<category><![CDATA[Cognitive psychology]]></category>
		<category><![CDATA[Human error]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Traffic safety]]></category>
		<category><![CDATA[Cultural cliche]]></category>
		<category><![CDATA[false affordance]]></category>
		<category><![CDATA[information hazard]]></category>
		<category><![CDATA[NSW RTA]]></category>
		<category><![CDATA[pedestrian crossings]]></category>
		<category><![CDATA[pedestrian safety]]></category>
		<category><![CDATA[road safety]]></category>

		<guid isPermaLink="false">http://msquair.wordpress.com/?p=4716</guid>
		<description><![CDATA[How the marking of a traffic speed hump provides a classic example of a false affordance and an unintentional hazard.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=msquair.wordpress.com&amp;blog=7867701&amp;post=4716&amp;subd=msquair&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>2</slash:comments>
	
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			<media:title type="html">Piano keying of a speed hump as a false affordance (Image Source: Public Domain)</media:title>
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