We propose a modelling methodology to exploit stochastic indicators of a service delivered by interdependent infrastructures, represented by interconnected networks. We identify the networks in terms of topology, logical and physical paths, nominal failure and repair mechanisms of elements/segments, and reciprocal interconnections. Then, we represent each network by a convenient stochastic modelling technique, able to capture network technological issues and realistic assumptions of elements/segments failure and recovery mechanisms. That confines the application of the higher modeling power technique, but also of lower analytical tractability, only to those networks that actually require it. Finally, we compute the service availability of the interconnected network accounting the availability of each network which supports the service. We refer to an actual scenario, used for demonstration purposes, focusing on the service availability of the communication between two control centres of a Supervision, Control and Data Acquisition system of a power distribution grid. The availability of such a communication depends upon the availability of three interconnected networks: a Telco network, a Telco emergency power supply and a power distribution grid. © 2009 Taylor & Francis Group.
|Publication status||Published - 2009|
|Event||Joint ESREL (European Safety and Reliability) and SRA-Europe (Society for Risk Analysis Europe) Conference - , Spain|
Duration: 1 Jan 2009 → …
|Conference||Joint ESREL (European Safety and Reliability) and SRA-Europe (Society for Risk Analysis Europe) Conference|
|Period||1/1/09 → …|
All Science Journal Classification (ASJC) codes
- Safety, Risk, Reliability and Quality
- Safety Research
Bonanni, G., Ciancamerla, E., Minichino, M., Clemente, R., Iacomini, A., Scarlatti, A., ... Terruggia, R. (2009). Exploiting stochastic indicators of interdependent infrastructures: The service availability of interconnected networks. Paper presented at Joint ESREL (European Safety and Reliability) and SRA-Europe (Society for Risk Analysis Europe) Conference, Spain.