Risk assessment and management of civil infrastructure networks: a systems approach - Seismic Risk Analysis and Management of Civil Infrastructure Systems - page 450

Level 2
Level 4
17.7 Second and fourth levels of the hierarchical decomposition of the
proposed network.
the additional hierarchical information leads to a much narrower solution
space.
17.6 Conclusions
This chapter presents the main advances and challenges in modelling and
assessing performance of infrastructure networks in the context of risk-
based decision making. A systems approach was introduced to deal with
the computational complexity of managing infrastructure systems. The pro-
posed approach successively decomposes networks into clusters and con-
structs a hierarchical model of the network, extracting relevant properties
of their topology that are useful for simplifying assessment and optimiza-
tion of infrastructure networks. The hierarchical model responds to the
organizational scenario of decision-making problems in managing infra-
structure, i.e., people making decisions at different levels, about different