Planning and Design for Fire and Smoke Incidents in Underground Passenger Rail Systems (2017) / Chapter Skim
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Pages 31-37
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From page 31... ...
31 IntroductIon This is the second of two chapters presenting the results of a survey of transit agencies regarding planning and design for fire and smoke incidents in underground passenger rail systems. The previous chapter addressed survey results related to sources of information; definitions; incidents and causes; detection, prevention, protection, and ventilation; protocol and procedures for fire and smoke incident management; and training.
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32 Some of the challenges during planning and design are that many times in the industry the safety engineers are not on board during this stage and are brought in later. I find this happens in many cases.
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33 next-generatIon tools Transit agencies are exploring new technologies to prevent or minimize the impact of underground fires, although many prefer to rely on tried-and-true methods. Table 26 presents survey responses.
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34 • Mechanical door assists on egress doors to overcome forces created by emergency ventilation systems; • Test of each emergency ventilation sequence at least once per quarter; and • Ongoing ventilation studies. lessons learned Lessons learned that would be helpful for other transit agencies are shown in Table 28.
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35 • The City Fire Department is the primary response group and all fire houses along the rail system get refresher training on a regular basis. The Fire Training Academy has also made this training a part of their curriculum and all new firefighters get it.
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36 the Ideal system The final question in the assessment section of the survey was: based upon your experience, do you have any recommendations for specifications or design features for inclusion in the design of new tunnels or retrofit of legacy tunnels? What would the "ideal" fire prevention and response system look like to you?
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From page 37... ...
37 • based on our experience with "wet" standpipe systems in running, we recommend "dry" standpipes in our new tunnels going forward. This allows for cost for maintenance (including heat trace elements)
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