Why Infrastructure Maintenance and Redundancy Matter
Quick answer: Maintenance reduces avoidable failures, while redundancy can give critical systems another way to operate when one component is unavailable. Both can improve reliability when used where the consequences of failure justify the cost.
What does resilience research say?
World Bank resilience research describes maintenance and redundancy as complementary tools. Maintenance protects the assets already in service; redundancy can reduce dependence on a single vulnerable component or route.
What is the trade-off?
More redundancy is not automatically better. Extra capacity and backup systems also cost money to build and maintain, so their value should be judged against risk and service criticality.
Research basis: Stip et al. (World Bank, 2019).