| Autor: |
Matisziw, Timothy C., Murray, Alan T. |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Matisziw, T.C. and A.T. Murray. 2009. Modeling s-t Path Availability to Support Disaster Vulnerability Assessment of Network Infrastructure. Computers & Operations Research. 36(1), 16-26 |
| Druh dokumentu: |
Working Paper |
| Popis: |
The maintenance of system flow is critical for effective network operation. Any type of disruption to network facilities (arcs/nodes) potentially risks loss of service, leaving users without access to important resources. It is therefore an important goal of planners to assess infrastructures for vulnerabilities, identifying those vital nodes/arcs whose debilitation would compromise the most source-sink (s-t) interaction or system flow. Due to the budgetary limitations of disaster management agencies, protection/fortification and planning for the recovery of these vital infrastructure facilities is a logical and efficient proactive approach to reducing worst-case risk of service disruption. Given damage to a network, evaluating the potential for flow between s-t pairs requires assessing the availability of an operational s-t path. Recent models proposed for identifying infrastructure vital to system flow have relied on enumeration of all s-t paths to support this task. This paper proposes an alternative model constraint structure that does not require complete enumeration of s-t paths, providing computational benefits over existing models. To illustrate the model, an application to a practical infrastructure planning problem is presented. |
| Databáze: |
arXiv |
| Externí odkaz: |
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