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Posts Tagged ‘reliability engineering

HS2 irresilience

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The University of Connecticut document ‘Network Vulnerability and High-Speed Rail‘ presented by Nicholas Lownes, noted that

* The vulnerability of a transportation network is strongly correlated with the ability of the network to withstand shocks and disruptions.
* High-volume edges with limited alternative paths represent obvious system vulnerabilities.

The design of HS2 makes it highly vulnerable to disruption. It would be connected to the legacy rail system, but its preferred European-interoperable GC gauge rolling stock would not generally be able to interoperate on British track. The outcome would be that HS2 is exposed to the perturbations from classic rail, but is not able to use those connections to effectively re-route traffic in response to disruption on its own line, or on some other portion of the legacy network.