Risk assessment of fire emergency ventilation strategies during traffic congestion in unidirectional tunnels with longitudinal ventilation

B. Kohl; O. Senekowitsch; I. Nakahori; T. Sakaguchi; A. E. Vardy

Risk assessment of fire emergency ventilation strategies during traffic congestion in unidirectional tunnels with longitudinal ventilation

B. Kohl
, O. Senekowitsch
, I. Nakahori
, T. Sakaguchi
, A. E. Vardy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Four possible strategies for ventilation response to fire in a unidirectional tunnel are compared quantitatively for three traffic conditions (congested, stop-and-go, free-flowing) and three fire sizes (5MW, 30MW, 100MW). The overall risk of each strategy for all nine combinations of traffic and fire are assessed using the Austrian tunnel risk model TuRisMo applied to a representative tunnel that is 3km long and has realistic gradients. It is found that commonly-existing strategies such as maintaining airflow in the original traffic direction are appropriate for free-flowing traffic, but that a zero-flow strategy previously proposed for bidirectional tunnels has strong advantages in the event of congested traffic or stop-and-go traffic.

Original language	English
Title of host publication	17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017
Place of Publication	United States
Publisher	BHR Group Limited
Pages	457-471
Number of pages	15
ISBN (Print)	9781510851665
Publication status	Published - Dec 2017
Event	17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017 - Lyon, France Duration: 13 Sept 2017 → 15 Sept 2017

Conference

Conference	17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017
Country/Territory	France
City	Lyon
Period	13/09/17 → 15/09/17

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

ASJC Scopus subject areas

Civil and Structural Engineering
Safety, Risk, Reliability and Quality
Building and Construction

Cite this

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title = "Risk assessment of fire emergency ventilation strategies during traffic congestion in unidirectional tunnels with longitudinal ventilation",

abstract = "Four possible strategies for ventilation response to fire in a unidirectional tunnel are compared quantitatively for three traffic conditions (congested, stop-and-go, free-flowing) and three fire sizes (5MW, 30MW, 100MW). The overall risk of each strategy for all nine combinations of traffic and fire are assessed using the Austrian tunnel risk model TuRisMo applied to a representative tunnel that is 3km long and has realistic gradients. It is found that commonly-existing strategies such as maintaining airflow in the original traffic direction are appropriate for free-flowing traffic, but that a zero-flow strategy previously proposed for bidirectional tunnels has strong advantages in the event of congested traffic or stop-and-go traffic.",

author = "B. Kohl and O. Senekowitsch and I. Nakahori and T. Sakaguchi and Vardy, \{A. E.\}",

year = "2017",

month = dec,

language = "English",

isbn = "9781510851665",

pages = "457--471",

booktitle = "17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017",

publisher = "BHR Group Limited",

address = "United Kingdom",

note = "17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017 ; Conference date: 13-09-2017 Through 15-09-2017",

}

Kohl, B, Senekowitsch, O, Nakahori, I, Sakaguchi, T & Vardy, AE 2017, Risk assessment of fire emergency ventilation strategies during traffic congestion in unidirectional tunnels with longitudinal ventilation. in 17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017. BHR Group Limited, United States, pp. 457-471, 17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017, Lyon, France, 13/09/17.

Risk assessment of fire emergency ventilation strategies during traffic congestion in unidirectional tunnels with longitudinal ventilation. / Kohl, B.; Senekowitsch, O.; Nakahori, I. et al.
17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017. United States: BHR Group Limited, 2017. p. 457-471.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Risk assessment of fire emergency ventilation strategies during traffic congestion in unidirectional tunnels with longitudinal ventilation

AU - Kohl, B.

AU - Senekowitsch, O.

AU - Nakahori, I.

AU - Sakaguchi, T.

AU - Vardy, A. E.

PY - 2017/12

Y1 - 2017/12

N2 - Four possible strategies for ventilation response to fire in a unidirectional tunnel are compared quantitatively for three traffic conditions (congested, stop-and-go, free-flowing) and three fire sizes (5MW, 30MW, 100MW). The overall risk of each strategy for all nine combinations of traffic and fire are assessed using the Austrian tunnel risk model TuRisMo applied to a representative tunnel that is 3km long and has realistic gradients. It is found that commonly-existing strategies such as maintaining airflow in the original traffic direction are appropriate for free-flowing traffic, but that a zero-flow strategy previously proposed for bidirectional tunnels has strong advantages in the event of congested traffic or stop-and-go traffic.

AB - Four possible strategies for ventilation response to fire in a unidirectional tunnel are compared quantitatively for three traffic conditions (congested, stop-and-go, free-flowing) and three fire sizes (5MW, 30MW, 100MW). The overall risk of each strategy for all nine combinations of traffic and fire are assessed using the Austrian tunnel risk model TuRisMo applied to a representative tunnel that is 3km long and has realistic gradients. It is found that commonly-existing strategies such as maintaining airflow in the original traffic direction are appropriate for free-flowing traffic, but that a zero-flow strategy previously proposed for bidirectional tunnels has strong advantages in the event of congested traffic or stop-and-go traffic.

UR - http://www.proceedings.com/37047.html

M3 - Conference contribution

AN - SCOPUS:85040219307

SN - 9781510851665

SP - 457

EP - 471

BT - 17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017

PB - BHR Group Limited

CY - United States

T2 - 17th International Symposium on Aerodynamics, Ventilation and Fire in Tunnels 2017, ISAVFT 2017

Y2 - 13 September 2017 through 15 September 2017

ER -

Risk assessment of fire emergency ventilation strategies during traffic congestion in unidirectional tunnels with longitudinal ventilation

Abstract

Conference

UN SDGs

ASJC Scopus subject areas

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Cite this