Analyzing Network Vulnerabilities in case of Disasters

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Supervisor:
Dr. Tapolcai János
Department of Telecommunications and Media Informatics

The reason and also the consequence of today’s technological advances is the fast exchange of information and products. The prerequisite of this cooperation is the existence of networks with effective, uninterrupted traffic operation like roads, railroads, airways, power lines of fibre cables. As the scale of traffic and the need for reliable, on-demand services are increasing, we need to research how we can ensure proper behaviour.

Since the dawn of civilization, we’ve seen how important of a role networks can play in global political and military operations. In addition, networks are subject to natural forces also.

In my thesis, I’ve constructed a computer program to convert existing networks to graphs and for analyzing and visualizing said networks. The product of the script is a so-called Shared Risk Link Group (SRLG) list. This is proven to be useful to determine a given network’s specific risk, strategically important routes, sectors that are ought to be developed, and also to adjust the traffic it’s transmitting accordingly.

For my measurements, I construct the model of a network from its image. In a given graph the vertices mostly represent traffic junctions like cities. The edges represent routes between the junctions, in the case of my study they are glass fibre cables. The base of the measurements is a dataset containing historical data about the tectonic activity of the area.

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