Effects of Lifeline Interaction on Seismic Performance of Telecommunications Networks

生命线相互作用对电信网络抗震性能的影响

• 批准号: 9212244
• 负责人: Jeremy Isenberg
• 金额: --
• 依托单位: Weidlinger Associates Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-15 至 1995-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9212244&HistoricalAwards=false
• 关键词: Effects; Lifeline; Interaction; Seismic; Performance

Telecommunication technology has advanced to the point where direct failure of critical equipment is unlikely in modern central offices. However, increasing robustness of equipment is partly compromised by other trends: fewer trunks and more concentration of switching offices (fiber optics technology), more complex switching/signaling hierarchies and disparate hardness in the equipment and their host facilities. The result is that failure is now more likely to be caused by collateral hazards and failure of supporting lifelines, and as a result the impact of the failure on an urban system would be much greater than in the past. This project studies the effects of these trends. By applying Geographic Information Systems (GIS) technology to lifeline modeling, a range of assumptions concerning earthquake scenario, geological and collateral hazards, and interaction with supporting lifelines will be considered. The computer-based method developed to address the issues of concentration and interactions, including the use of GIS as a platform for combining complex topologies of interacting lifelines with hazards, will be used in network design, emergency planning and preventive risk management. The project will advance engineering capabilities to determine the lifeline interaction effects under seismic hazards through a GIS based network design system.

电信技术已经发展到了现代中心局不太可能出现关键设备直接故障的地步。然而，设备健壮性的提高在一定程度上受到了其他趋势的影响：更少的干线和更集中的交换局(光纤技术)、更复杂的交换/信令层次结构以及设备及其主机设施中的不同难度。其结果是，失败现在更有可能是由附带风险和支持生命线的失败造成的，因此，失败对城市系统的影响将比过去大得多。这个项目研究了这些趋势的影响。通过将地理信息系统(GIS)技术应用于生命线建模，将考虑有关地震情景、地质和附带灾害以及与支持生命线的相互作用的一系列假设。为解决集中和相互作用问题而开发的以计算机为基础的方法，包括使用地理信息系统作为将相互作用的生命线与危险相互作用的复杂拓扑结构结合起来的平台，将用于网络设计、应急规划和预防性风险管理。该项目将通过基于地理信息系统的网络设计系统，提高确定地震灾害下生命线相互作用影响的工程能力。