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TRB's National Cooperative Highway Research Program (NCHRP) Research Report 836: Guidelines for Emergency Ventilation Smoke Control in Roadway Tunnels presents guidelines for ventilation in roadway tunnels to facilitate human evacuation and emergency responder safety. These guidelines consider tunnel geometrics such as tunnel altitude; physical dimensions (i.e., length, cross section); type of traffic flow (i.e., single or bi-directional flow); and fan utilization and placement. They also consider cargo types and quantities as they pertain to fire heat release rates (FHRRs) and ventilation requirements. The guidelines determine the effects of ventilation on tunnel fires including fire size, and the interaction of firefighting and ventilation system operation.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2017. Guidelines for Emergency Ventilation Smoke Control in Roadway Tunnels. Washington, DC: The National Academies Press. https://doi.org/10.17226/24729.

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Publication Info

80 pages |  8.5 x 11 |  DOI: https://doi.org/10.17226/24729
Chapters skim
Front Matter i-vi
Summary 1-3
Chapter 1 - Introduction 4-15
Chapter 2 - Road Tunnel Fires 16-22
Chapter 3 - Tunnel Emergency Ventilation and Smoke Control Design Guidelines 23-47
Chapter 4 - Tunnel Fire Detection and Ventilation Impact 48-48
Chapter 5 - Tunnel Fixed Firefighting Systems and Ventilation Impact 49-56
Chapter 6 - Tunnel Emergency Ventilation Controls 57-59
References 60-61
Glossary 62-63
Appendix A - Tunnel Fire Detection and Warning Systems 64-66
Appendix B - Tunnel Fixed Firefighting Systems 67-74

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