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OCR for page 163
163 approached in two ways: (1) in an analytical approach using 7.26 Issues Identified by Case blasting modeling and analyses and (2) in experimental field Studies testing. It is anticipated that experimental testing would be carried out first to provide relevant calibration data for subse- Chapter 3 of this report summarizes a set of "lessons quent analytical work. Once the calibration analyses are com- observed" from the tunnel incidents that have occurred pleted, additional parametric runs could be efficiently and around the world in recent years. These case studies could be cost-effectively conducted to develop useful results. researched further to obtain more specific information, espe- cially in regard to the role that life safety systems played dur- ing the incident (see Table 5). This type of information could 7.25 Intelligent Egress Systems be extremely helpful to tunnel owners and operators faced Using the current computer modeling technology available with the decision of how best to allocate limited money to in the egress area (e.g., Simulex), researchers could try to select countermeasures to increase the safety and security of develop intelligent egress systems. their facilities.