Abstract:Critical infrastructure resilience has become a national priority for the U.S. Department of Homeland Security. Rapid and efficient restoration of service in damaged transportation networks is a key area of focus. The intent of this paper is to formulate a bi-level optimization model for network recovery and to demonstrate a solution approach for that optimization model. The lower-level problem involves solving for network flows, while the upper-level problem identifies the optimal recovery modes and sequences… Show more
“…References (Henry and Ramirez-Marquez, 2012) and (Vugrin et al, 2010) provide a survey about resilience measurement methodologies from a wide range of disciplines. Generally speaking, resilience metrics may be divided in (Vugrin et al, 2014):…”
Section: Main Resilience Metricsmentioning
confidence: 99%
“…The common framework underlying performance-based approaches employs a system performance metric F(,) as a basis for the resilience computation (Vugrin et al, 2014). This is a timedependent function, which represents the system delivery function or figure-of-merit.…”
Section: Main Resilience Metricsmentioning
confidence: 99%
“…Generic concept of disruption and recovery for resilience performance-based metrics(Vugrin et al, 2014).…”
mentioning
confidence: 99%
“…In this way, we deal with resilience (and not robustness) actions(Vugrin et al, 2014).2 The stress typically implies a decrease in one or more KPIs.…”
“…References (Henry and Ramirez-Marquez, 2012) and (Vugrin et al, 2010) provide a survey about resilience measurement methodologies from a wide range of disciplines. Generally speaking, resilience metrics may be divided in (Vugrin et al, 2014):…”
Section: Main Resilience Metricsmentioning
confidence: 99%
“…The common framework underlying performance-based approaches employs a system performance metric F(,) as a basis for the resilience computation (Vugrin et al, 2014). This is a timedependent function, which represents the system delivery function or figure-of-merit.…”
Section: Main Resilience Metricsmentioning
confidence: 99%
“…Generic concept of disruption and recovery for resilience performance-based metrics(Vugrin et al, 2014).…”
mentioning
confidence: 99%
“…In this way, we deal with resilience (and not robustness) actions(Vugrin et al, 2014).2 The stress typically implies a decrease in one or more KPIs.…”
“…Design of a resilient power projection network is a very important practical issue for strengthening the ability of strategic power projection. For response to hub failure, two strategies are usually adopted which include reactive (e.g., repairing [11] and rescheduling [12,13]) and proactive strategies (e.g., adjusting the network hub location strategy [14,15] and protecting key hubs [16][17][18][19]). It is sensible to take into account the impact of hub random disruptions in advance for designing a more resilient network.…”
Hubs are critical facilities in the power projection network. Due to the uncertainty factors such as terrorism threats, severe weather, and natural disasters, hub facilities may be disrupted randomly, which could lead to excessive cost or loss in practice. One of the most effective ways to withstand and reduce the impact of disruptions is designing more resilient networks. In this paper, a stochastic programming model is employed for the hub location problem in the presence of random hub failures. A heuristic algorithm based on Monte Carlo method and tabu search is put forward to solve the model. The proposed approach is more general if there are numbers of hubs that would fail even with different failure probability. Compared with the benchmark model, the model which takes the factor of stochastic failure of hubs into account can give a more resilient power projection network.
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