Network Reliability With Geographically Correlated Failures

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Fiber-optic networks are vulnerable to natural disasters, such as tornadoes or earthquakes, as well as to physical failures, such as an anchor cutting underwater fiber cables. Such real-world events occur in specific geographical locations and disrupt specific parts of the network. Therefore, the geography of the network determines the effect of physical events on the network's connectivity and capacity. In this paper, the authors develop tools to analyze network failures after a 'Random' geographic disaster. The random location of the disaster allows people to model situations where the physical failures are not targeted attacks. In particular, the authors consider disasters that take the form of a 'Random' line in a plane.