Title
Near-optimal planning using approximate dynamic programming to enhance post-hazard community resilience management.
Abstract
The lack of a comprehensive decision-making approach at the community level is an important problem that warrants immediate attention. Network-level decision-making algorithms need to solve large-scale optimization problems that pose computational challenges. The complexity of the optimization problems increases when various sources of uncertainty are considered. This research introduces a sequential discrete optimization approach, as a decision-making framework at the community level for recovery management. The proposed mathematical approach leverages approximate dynamic programming along with heuristics for the determination of recovery actions. Our methodology overcomes the curse of dimensionality and manages multi-state, large-scale infrastructure systems following disasters. We also provide computational results showing that our methodology not only incorporates recovery policies of responsible public and private entities within the community but also substantially enhances the performance of their underlying strategies with limited resources. The methodology can be implemented efficiently to identify near-optimal recovery decisions following a severe earthquake based on multiple objectives for an electrical power network of a testbed community coarsely modeled after Gilroy, California, United States. The proposed optimization method supports risk-informed community decision makers within chaotic post-hazard circumstances.
Year
DOI
Venue
2019
10.1016/j.ress.2018.09.011
Reliability Engineering & System Safety
Keywords
DocType
Volume
Approximate dynamic programming,Combinatorial optimization,Community resilience,Electrical power network,Rollout algorithm
Journal
181
ISSN
Citations 
PageRank 
0951-8320
1
0.76
References 
Authors
4
5
Name
Order
Citations
PageRank
Saeed Nozhati111.10
Yugandhar Sarkale211.44
Bruce R. Ellingwood321.94
Edwin K. P. Chong41758185.45
Hussam Mahmoud532.63