Northern Gas Networks (NGN) operates and manages one of the eight gas distribution networks (GDNs) in Great Britain. They distribute gas to 2.7 million homes and businesses in the North of the country.
NGN approached Business Modelling Associates (BMA) to work on a collaborative project to explore and develop a more data-driven method of analysis for their maintainable assets, such as domestic governors and pressure reduction system assets. Up until this point, the method for determining probability of failure and deterioration for these assets was subject matter expert elicitation. However, this did not fully account for the effect of maintenance regimes on the lifecycles of the assets, nor did it account for the interdependency of risk and resilience within the systems many of these assets operated in.
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