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Ferramentas para localizar infraestrutura crítica

AntGiles

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Dado um conjunto de dados de feições de um país que inclui camadas que cobrem a infraestrutura do país (como redes de gás e elétricas, estradas, ferrovias etc...) e dados Landscan detalhando a população, alguém conhece alguma ferramenta ou técnica que possa ser usada para determinar os nós de infraestrutura crítica (ou seja, aqueles nós que afetariam a maior parte da população se fossem desativados).<\/P>

Estou investigando isso como parte da preparação para resposta a desastres.<\/P>

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Obrigado<\/P>

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Anthony<\/P><\/BODY><\/HTML>

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MatthewPate

Hi Anthony,

More than providing a straight answer, I have an idea as to a process that may help you find an answer. What you're really asking for is a measure of centrality. There are many different ways to quantify aspects of centrality. Here is a quick primer on some of the more common measures and the math behind them. Perhaps this will give you a place to start. I am a criminologist/consulting detective. I use these measures to determine who in a network of criminals is more important to the overall functioning of their group. There's an incredible Excel template called NodeXL that might help you.

I know all this is pretty roundabout, but maybe it will spur your thinking.

Best,

Matthew

JorgeMatos

Thank you for invited me.

IgnatiusY__Rumambi

Thanks for invitation

NtriankosIoannis

If I get it right, the task you want to do is actually Location-allocation from Network Analyst. Take a look at the documentation and esri videos http://video.esri.com/watch/2916/network-analyst-an-introduction

keep in mind that Network Analyst license is required

Best,

John

AntGiles

Hi,

Thanks for the suggestions, I have previously looked at Location-allocation but this is not what I require. The issue I have is the networks are pre-existing and I want to try and see if I can use GIS to find critical nodes across all the networks (interlinked). This could be those nodes which would effect the most population if taken offline (in case of a water treatment plant or power station) or nodes that can have secondary effects, such as if a rail bridge collapses does this have a knock on effect meaning that coal cannot be delivered to a power station which then in turn effects the power output which could then effect something else and so on....

Regards

Anthony

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