Radix - Lifeline Infrastructure Failures

 

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Philip Buckle. Posting to the Natural Hazards-Disasters Listserv, 16 August 2003

It seems to me that what we are witnessing here is a new type of vulnerability that "developed" socities in particular are susceptible to. But this is not the only - or even a rare - event of this type. The loss of power to central Auckland (New Zealand) some years ago, the partial loss of water to Sydney (Australia) when the water supply was contaminated with cryptospiridium and the loss of gas to the State of Victoria (Australia) in 1998 are other examples of "coupled" networks, with limited (and increasingly limited after the processes of privatisation) redundancy and back up systems.

It is not just the New World that is at risk in this sense - Britain last winter suffered major transport system disruption when a few inches of snow fell and dislocated road traffic, and this summer record heat has caused train cancellations as rails warp and make usual train speeds unsafe.

I think that we should be investigating this sort of issue from at least two points of view. First, how networks rather than independent and autonomous entities behave and second from the perspective of complexity theory which raises issues of emergence and the perdicatbility of one action leading to another.

But this needs to be put in perspective. This most recent power loss in North America means an increase in risk for many ofthe individuals and families who are affected. How do people on life support systems cope; how do hospitals maintain services and so on. There has been no mention - so far as I can tell from media reports - of who is at risk and what support they are being given.

Perhaps, finally, this is a classic example of a disaster - where the capacity of the wider society or of government to provide support is impacted and reduced because it is itself a victim of the event.

My own experience of managing utility disruption is that it is complex, fraught and extrremely sensitive politically while at the same time requiring rapid and definitive solutions to issues that seem to arise spontaneously and which extend from the personal (how do you cook/clean/heat/cool without power) to the national (how is industry or emergency services capability sustained when power is absent).

Philip Buckle


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