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Modeling and Assessing Large-Scale Surface Transportation Network Component Criticality.
| 题名： | Modeling and Assessing Large-Scale Surface Transportation Network Component Criticality. |
| 作者： | abdel-rahim, a. oman, p. johnson, p. tung, l. w. sadig, r. |
| 关键词： | case studies, survivability assessments, modeling, urban areas, qualitative assessments, quantitative assessments, failure events, communication systems, safety, security, traffic delays |
| 摘要： | A case study to assess the survivability of a large-scale urban Intelligent Transportation System (ITS) network is presented. The ITS for the city of Boise, Idaho was analyzed using two different survivability assessment techniques that are discussed and summarized here. The first approach provides a qualitative assessment of the Boise ITS; it is based on the Survivable Systems Analysis (SSA) method as modified for critical infrastructures. The second approach provides a quantitative assessment of network survivability using a multilayered graph-based approach consisting of the greater Boise area power grid and surface transportation system. The power grid, communication network, and the physical and control transportation graphs were analyzed to determine the relative criticality of different network components. Macroscopic modeling was used to investigate the effect of components' failure on the network's operational characteristics. The greater Boise area has a population of over half a million people. The analysis presented here serves as a case study showing the means of assessing the importance of different components in critical infrastructure layers. The results enable decision makers to understand the effects of failure events and to prioritize threat mitigation alternatives. / NOTE: Final rept. (August 2005-December 2006). / Supplementary Notes: Sponsored by Department of Transportation, Washington, DC. Office of Research and Special Programs. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0803；78p |
| 报告类型： | 科技报告 |
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