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  • 1.
    Amon, Francine
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Gehandler, Jonatan
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Assessment of the environmental impact of warehouse fires and fire service response2017In: Fire and Materials 2017: 15th International Conference, London, UK: Interscience Communications, 2017, p. 433-442Conference paper (Refereed)
  • 2.
    Amon, Francine
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Gehandler, Jonatan
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    McNamee, Robert
    Brandskyddslaget, Sweden.
    McNamee, Margaret
    Lund University, Sweden.
    Vilic, Azra
    Chalmers University of Technology, Sweden.
    Measuring the impact of fire on the environment (Fire Impact Tool, version 1): Project report and user manual2019Report (Other academic)
  • 3.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Stahl, Selim
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Development of an Environmental and Economic Assessment Tool (Enveco Tool) for Fire Events2016In: Brandposten, no 54, p. 32-32Article in journal (Other academic)
  • 4.
    Amon, Francine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Stahl, Selim
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Tomida, Mai
    Worcester Polytechnic Institute.
    Meacham, Brian
    Worcester Polytechnic Institute.
    Development of an Environmental and Economic Assessment Tool (Enveco Tool) for Fire Events2016Book (Other academic)
  • 5.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Evaluation of Road Tunnel Fire Safety and Risk2016In: Proceedings from the 7th International Symposium on Tunnel Safety and Security, 2016, p. 217-228Conference paper (Other academic)
    Abstract [en]

    The aim of this paper is to help a decision maker to decide whether a road tunnel is safe enough with respect to fire safety. Safety objectives as well as societal, ethical and political objectives are identified for the decision. It is argued that most uni-directional tunnels that comply with minimum EC requirements, with a longitudinal ventilation system along the traffic flow fails safely in the event of fire. Catastrophic fires should not be an issue, even for a risk averse decision maker. Considering the issue of fairness the tunnel is argued to be safe enough, and resources are either better used elsewhere or should be allocated so that the utility is maximized. For high-risk bi-directional tunnels, catastrophic fires could be an issue, in particular if there is no separate emergency pathway. Then a risk aversive decision maker may take extra safety measures against such fires. A risk neutral decision maker would allocate resources so that the utility is maximized. Road tunnel regulation should set minimum requirements rather than cautionary requirements and allow for a probabilistic approach.

  • 6.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Evaluation of road tunnel fire safety and risk: How safe is safe enough?2016In: Book of Abstracts Nordic Fire & Safety Days 2016, 2016, p. 41-Conference paper (Other academic)
  • 7.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Road tunnel fire safety and risk: a review2015In: Fire Science Reviews, ISSN 2193-0414, Vol. 4, no 2Article in journal (Other academic)
  • 8.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Smartare väg mot tunnelsäkerhet2012In: Brandposten, no 47, p. 8-9Article in journal (Other (popular science, discussion, etc.))
  • 9.
    Gehandler, Jonatan
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    The theoretical framework of fire safety design: Reflections and alternatives2017In: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226Article in journal (Refereed)
    Abstract [en]

    This article aims to contribute to discussions and reflections upon the practice and theory of fire safety design. Are we reaching the results we want by the best available means? The theoretical framework of fire safety design is today restricted by a linear design process where mainly quantitative data and methods matters. A deterministic approach to safety ignores the decision-making context and considers each objective in isolation. Alternative methods for the fire safety design could view the design work as an iterative problem solving process between the designers and the stakeholders. Then decision making theory can be applied to solve the problem. In the iterative process key objectives are identified and the problem and its solutions are being reframed, creative inherently safer (cannot fail) and fail safe (forgiving to errors) alternatives are initially aimed at. Design should further embrace a function-centred view of the human-technology-structure system. A utilitarian evaluation that includes also qualitative factors can identify the best trade-offs between conflicting objectives. With a diversity of perspectives on fire safety design, the field of fire safety will be strengthened and be able to assist a rapidly changing world.

  • 10.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    The transportation of water reactive substances through road tunnels equipped with sprinkler system: A literature review2014Report (Refereed)
  • 11.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Eymann, Loriane
    Ecole des mines d’Ales, France.
    Regeffe, Maxime
    Ecole des mines d’Ales, France.
    Limit-Based Fire Hazard Model for Evaluating Tunnel Life Safety2015In: Fire technology, ISSN 0015-2684, E-ISSN 1572-8099, Vol. 51, no 3, p. 585-614Article in journal (Refereed)
    Abstract [en]

    Despite the simple one-dimensional symmetry of a tunnel with a longitudinal ventilation flow, risk analysis often comprises resource intensive and complex calculations. The purpose of this article is to present a simple yet precise limit-based model for assessing the possibility for a safe tunnel evacuation. To estimate the model uncertainty, fire dynamics calculations were compared to experimental data. The calculations performed well compared to experimental test data, showing an average difference between 5 and 40% in predicting the time available for evacuation, when criteria for visibility, air temperature, CO, CO2 and O2 concentration and heat flux were calculated. For steadily growing fires, visibility showed a low sensitivity to variability in input parameters with a relative difference at 9% compared to experimental data. Due to several factors it was not possible to estimate the accuracy of HCN calculations. Visualizing the hazards in a time–distance diagram revealed visibility to be the key indicator for calculating ASET for a broad set of plausible input parameters. This resulted in a simple expression for calculating ASET and consequently a simple condition for evaluating life safety.

  • 12.
    Gehandler, Jonatan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Ingason, Haukur
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Principer och strategier för ventilation vid brand i undermarksanläggningar2018Report (Other academic)
    Abstract [en]

    The report describes different underground systems including mines and tunnels during construction (tunneling). The key factors that affect fire development in underground systems are described. Proposal and recommendations for ventilation strategies in case of fire are given. The report covers both fuel- and ventilation-controlled fires. In general, a minimal ventilation limits the fire growth and may even inert the fire through ascended smoke. A minimal ventilation also contributes to improved conditions for a first fire extinguishing attempt and evacuation.

  • 13.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Frantzich, Håkan
    Requirements and verification methods of tunnel safety and design2012Report (Refereed)
  • 14.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Frantzich, Håkan
    Strömgren, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Funktionsbaserade krav och rekommendationer för brandsäkerhet i vägtunnlar (FKR-BV12)2012Report (Refereed)
  • 15.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Frantzich, Håkan
    Strömgren, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Performance-based design of road tunnel fire safety: proposal of new Swedish framework2014In: Proceedings of Sixth International Symposium on Tunnel Safety and Security., SP Sveriges Tekniska Forskningsinstitut , 2014, , p. 18-28Conference paper (Other academic)
  • 16.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Frantzich, Håkan
    Strömgren, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Performance-based design of road tunnel fire safety: proposal of new Swedish framework2014In: Proceedings of Sixth International Symposium on Tunnel Safety and Security., SP Sveriges Tekniska Forskningsinstitut , 2014, , p. 205-214Conference paper (Other academic)
  • 17.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Frantzich, Håkan
    Strömgren, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Performance-based requirements and recommendations for fire safety in road tunnels (FKR-BV12)2013Report (Refereed)
  • 18.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Ingason, Haukur
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Strömgren, Michael
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Stort behov av funktionsbaserade regler för tunnlar2016In: Brandposten, no 55, p. 26-26Article in journal (Other academic)
  • 19.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Karlsson, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Vylund, Lotta
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Risker med nya energibärare i vägtunnlar och underjordiska garage2016Report (Other academic)
    Abstract [en]

    Due to environmental concern, policy goals for transportation aim at using renewable fuels. These include gaseous fuels such as motor gas, methane or hydrogen and electric vehicles. This research project focuses on a literature review to understand the emerging risks with alternative propellants in road tunnels and underground garages. Gaseous fuels and electric vehicles pose new risks compared to the liquid fuels that we are more used to. In particular this concerns gaseous fuels and the risk for pressure vessel explosion, and the release of toxic substances such as hydrogen fluoride from Li-ion batteries undergoing thermal runaway. Two workshops were organized to get feedback from stakeholders and to initiate discussions. Future research, risk reducing measures, rescue service guidance and changes of regulation and guidelines are discussed and proposed.

  • 20.
    Gehandler, Jonatan
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Karlsson, Peter
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Vylund, Lotta
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Risks associated with alternative fuels in road tunnels and underground garages2017Report (Other academic)
    Abstract [en]

    Due to environmental considerations, much current transportation policy development is aimed at increasing usage of renewable energy sources. These include gaseous fuels such as LPG, methane, and hydrogen, along with electricity. This research project focused on a literature review that was intended to research the risks involved in using alternative fuels in road tunnels and underground garages. Gaseous fuels and electric vehicles pose new risks that we, due to our greater familiarity with liquid fuels, are unused to. The greatest of these relate to gaseous fuels and pressure-vessel explosions, and the release of toxic gases such as hydrogen fluoride from Li-ion batteries undergoing thermal runaway. Two workshops were organised to obtain feedback from stakeholders and initiate discussion regarding the issue. Future research, risk-reducing measures, rescue service guidance, and changes to regulations and guidelines are discussed and proposed in this report.

  • 21.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Persson, Henry
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Qualitative Risk Analysis of Dangerous Goods with Alternative Propellants2016In: Proceedings from the 4th International Conference on Fire in Vehicles - FIVE 2016, 2016, p. 247-248Conference paper (Other academic)
    Abstract [en]

    This qualitative risk analysis of dangerous goods transports with alternative propellants was ordered by the Swedish Civil Contingencies Agency (MSB). Scenario combinations consisted of five alternative fuels, six accident scenarios and five types of dangerous goods cargo. The alternative fuels were: methane, hydrogen, ethanol, methanol and dimethyl ether. The accident scenarios consisted of refuelling, fire in tire or engine, tunnel accident, road collision and sabotage of fuel tank. The dangerous goods were limited to: ammonium nitrate, petrol/diesel, methane, ethyl chloride, and EX/II cargo as defined in the ADR regulation. The main identified risks are due to the risk of pressure vessel explosion of gaseous fuels as it: 1) Threatens to detonate explosive load or ammonium nitrate. 2) Cause rescue service to take a defensive approach which will lead to larger consequences. Since there are sustainable liquid fuel alternatives such as bio diesel, this may be a better choice for dangerous goods transportation.

  • 22.
    Gehandler, Jonatan
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Wickström, Ulf
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Estimation of tunnel temperature downstream a tunnel fire considering time dependent wall heat losses2014In: Proceedings of Sixth International Symposium on Tunnel Safety and Security., SP Sveriges Tekniska Forskningsinstitut , 2014, , p. 195-203Conference paper (Other academic)
  • 23.
    Ingason, Haukur
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Appel, Glenn
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Li, Ying Zhen
    Nyman, Hans
    Karlsson, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Arvidson, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research.
    Development of a test method for fire detection in road tunnels2015Report (Refereed)
  • 24.
    Ingason, Haukur
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Appel, Glenn
    Swedish Transport Administration, Sweden.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Li, Ying Zhen
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Nyman, Hans
    Brandskyddslaget AB, Sweden.
    Karlsson, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Arvidson, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Lundström, Ulf
    Swedish Transport Administration, Sweden.
    Modig, Henric
    Swedish Transport Administration, Sweden.
    Test Method and Performance of Fire Detection Systems in Tunnels2016In: Proceedings from the 7th International Symposium on Tunnel Safety and Security, 2016, p. 485-496Conference paper (Other academic)
    Abstract [en]

    The results of a study carried out for the Swedish Transport Administration on fire detection in road tunnels is presented. Laboratory tests and numerous large-scale tests were carried out in order to verify a proposal for a test method for fire detection systems. The main aim was to investigate possible fire detector systems and to see if they could fulfil the requirement given by the Swedish Transport Administration to detect the fire within 90 seconds. The tests are presented as well as a recommendation for testing detection systems in Swedish road tunnels. In order to perform the fire test, pans of different sizes were tested in order to obtain a reasonable fire size. The method proposed requires the use of three 0.6 m diameter standard pans, each containing eight litres of 95 octane gasoline, and air flow velocities of 2 m/s and 6 m/s. It was found out that using only one 0.6 m pan is sufficient if early warning is required without identifying the position for the fire-fighting system.

  • 25.
    Ingason, Haukur
    et al.
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Gehandler, Jonatan
    RISE - Research Institutes of Sweden, Safety and Transport, Safety.
    Metoder för att testa dukar och membran i tunnlar och bergrum2018Report (Other academic)
    Abstract [en]

    Tunnel and rock lining systems are used for drainage and icing protection. These systems can consist of any combination of concrete, metal, plastic or textile. The report summaries the available methods, both for testing and for installation. The large variation in both systems and test methods often make it difficult for constructors or designer to understand the importance of different methods. The report gives indication of what type of linings exists and how to ensure the fire safety of such systems. Fire safety properties can be verified in three different ways: #1 Full systems can be tested in full scale fire tests, #2 a section of the system can be tested in standardized furnace tests, or #3 plastic and/or textile membrane can be tested with regards to requirements on fire spread. It is suggested to require that a fire should not be able to propagate in the system. This can be verified with #3 above requiring class B, C or D according to EN 13501-1. If the lining system offers structural fire protection, it can be verified suing #2 above.

  • 26.
    Ingason, Haukur
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    SP anordnade ISTSS tunnelkonferens i Montreal2016In: Brandposten, no 54, p. 12-12Article in journal (Other academic)
  • 27.
    Ingason, Haukur
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    ISTSS Tunnelkonferens i Marseille2014In: Brandposten, no 50, p. 8-9Article in journal (Other (popular science, discussion, etc.))
  • 28. Nyman, Hans
    et al.
    Dittmer, Torkel
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Model scale tests of a single exit underground station2012Report (Refereed)
  • 29. Ochoterena, Raul
    et al.
    Gehandler, Jonatan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Fire Research, Branddynamik.
    Ingason, Haukur
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Extern detektering av brand på tåg i rörelse2013In: Brandposten, no 48, p. 9-Article in journal (Other (popular science, discussion, etc.))
1 - 29 of 29
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