Abstract
This chapter addresses decision-making for improving the resilience of civil infrastructure to extreme events over a broad region. It shows how this was approached for the West Coast Region of New Zealand. The issues were complex and needed a systemic approach. The project’s client required recommendations for improving infrastructure resilience. Our earlier risk-based work provided knowledge of the region and its natural hazards. A strategy for resilience improvement had to show both what interventions would be better value, and also, given a limited annual budget, how improvements could be prioritised over time. Both issues required an assessment of value, and we developed an appropriate resilience metric. Each infrastructure element was given two scores: its vulnerability or lack of resilience, and its significance or the effect of a failure on community resilience. This in turn was measured by community income. An underlying idea was the concept of a virtual pipeline, arising from the fact that infrastructure is mainly concerned with flows—of energy, goods, people, waste and so on.
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Notes
- 1.
Essentially, a system is that part of the overall situation that you’re dealing with, and the system model is the model you’re using to analyse the system.
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Elms, D., McCahon, I., Dewhirst, R. (2022). Improving Regional Infrastructure Resilience to Earthquakes, Storms and Tsunami. In: Stewart, M.G., Rosowsky, D.V. (eds) Engineering for Extremes. Springer Tracts in Civil Engineering . Springer, Cham. https://doi.org/10.1007/978-3-030-85018-0_10
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