2023-10-11: Theory is one thing, but the practical working out and implementation of Sustainable Fire Engineering Design is something else …
The (Sustainable) Fire Engineer will already be an active, contributing member of a collaborative Project Design Team. So, very early on in the Design Process for a Simple Building / Complex Building / Innovative Building / High-Rise Building / Tall Building or Group of Buildings (whatever) … he or she has a relatively mature sketch design on which to work, and major elements of the design can still be modified, without cost implications, based on her or his Creative Solutions which positively support and aid – not hinder, weaken or dilute – the Project Team’s Design Intent.
The Sustainable Fire Engineer should always / must, therefore, have a minimum competence with regard to Building Design and Construction in order to effectively communicate and creatively collaborate in these Design Teams.
[ Recommendation: Instead of looking down on, or discriminating against, Architects … they should be warmly welcomed into the International Community of Fire Engineering … where their particular expertise is badly needed.]
A blank sheet of paper, pencil in hand … or, if you prefer, an empty monitor screen, with mouse poised to move … and how to proceed … should it be this fire safety strategy (?) … or a different, more appropriate fire safety strategy (?)
Incorporate Ease & Reasonable Cost of Post-Fire Reconstruction.
At this early stage in the Design Process … treat Conventional Fire Codes as an irrelevancy in the context of the above Design Objectives … question the adequacy of out-dated, simple prescriptive solutions … and forget about European and North American biases with regard to Passive and Active Fire Protection Measures. Investigate new Sustainable Building Materials & Smart Technologies. Incorporate Factors of Safety throughout the Fire Engineering Design Process. Always remember Defence in Depth and Redundancy. Prioritize Construction Reliability.
Sustainable Design: Green Walls & Fire ?
‘Green Walls’ (also known as Planted Facades, Living Walls, Vertical Gardens, and Vertical Landscapes) is a general term which covers the architectural use of natural vegetation as a vertical element in buildings, both externally and/or internally ; intrinsically, each ‘Wall’ is different. To be absolutely clear from a fire engineering viewpoint, there is no such thing as a ‘standard’ green wall which can be fire tested in a laboratory. There are many benefits and advantages to these Walls … but, in future, they will play an important role in dealing with Climate Disruption, particularly the Urban Heat Island Effect in cities and large towns.
If properly installed and maintained … properly nourished and watered depending on local environmental conditions … Green Walls will not pose a fire hazard. But those are a lot of ‘ifs’ !
Remembering Defence in Depth … the installed ‘sub-soil’ watering system for a Green Wall may be interrupted or break down, so a Smart Water Mist System will help with hydration of the vegetation, and cooling for building occupants/users, as Climate Disruption intensifies. Some of the trees, shrubs or plants may wither and die, so a Water Sprinkler/Deluge (as appropriate) Fire Suppression System will deal with any accidental or intentional outbreaks of fire.
2020-09-08: Ignoring Britain’s silly sabre-rattling, toothless threats and boorish blackmail attempts reported in the Media during this past weekend, yesterday and today … the actual state of play in the tortuous Brexit Negotiations can best be judged from the following sources …
Michel Barnier’s Presentation to the Institute for International and European Affairs (IIEA), on 2 September 2020 … View it Here on YouTube
This is the European Union (EU), a Single Market of approximately 450 Million consumers. The EU operates under the freedoms and protections of Codified / Written Law, i.e. EU Treaties ratified by all of the EU Member States, EU Secondary Legislation (Regulations and Directives), and EU Administrative Provisions.
A suite of EU Regulations and Directives covers Industrial Products. While there is some flexibility with regard to how Directives are implemented at national level in the Member States, no such flexibility exists with Regulations. Construction Products can only be placed on the EU Single Market if they can be shown to comply with the requirements of the EU’s Construction Products Regulation (CPR) Framework, or in other words, be shown to be ‘fit for their intended use’ in the European Union …
BREXIT ~ IMPLICATIONS FOR THE BRITISH FIRE INDUSTRY
Trade ‘No Deal’ or ‘Minimal Deal’ … from 1 January 2021, Great Britain will be completely outside the European Single Market, and the EU’s Construction Products Regulation Framework. The designation ‘Notified Body’ under that Framework will fall away from British Organizations. Construction Products/Systems manufactured in, or supplied from, Britain will then have to undergo an entirely new EU Testing and Approvals Programme in order to access the European Single Market. Fire Safety related Construction Products will have to be tested, and assessed or appraised, against all 7 Basic Requirements for Buildings together, during the same period of time (see Annex I, EU Regulation 305/2011) …
Mechanical Resistance and Stability
Safety in Case of Fire
Hygiene, Health and the Environment
Safety and Accessibility in Use
Protection against Noise
Energy Economy and Heat Retention
Sustainable Use of Natural Resources
… a process which will be very interesting to observe, since the Fire Industry (particularly England’s Fire Establishment, AHJ’s, etc) dislikes, with intensity, the whole idea of ‘environmental impact’ … the concept of ‘sustainable development’ is hardly understood … and no consideration is given to the reasonable fire safety and accessibility needs of ‘vulnerable building users’ (including people with activity limitations, refugees, migrants, etc).
The tragic 2017 Grenfell Tower Fire, and its sad aftermath, have demonstrated how dysfunctional, and rotten to the core, is the whole national system of Building Fire Safety in England. More than 3 years later … on the evidence to date of an ongoing, incompetent Inquiry and a series of shoddy responses from Government … will survivors and the victims’ families ever receive Justice, and find Peace ? cf. The 1981 Stardust Discotheque Fire in Dublin. Survivors and victims’ families are still waiting for the truth to be revealed.
In parallel, mutual recognition of British Professional Building Designers, e.g. Architects, Structural Engineers, Fire Engineers, etc., within the European Union will cease.
In parallel, British Fire Research involvement in EU Research Networks will also cease … unless a heavy price is paid to be involved as a 3rd Country. British Institutions should forget any notions they might have about Network Leadership.
In parallel, Information and Data Flows between Britain and the EU will be disrupted or cease altogether … unless Britain complies fully with the requirements of EU General Data Protection Regulation (GDPR) 2016/679. As a vassal state of the USA, this compliance may prove difficult for Britain !
EU Fire Safety Related Product/System Manufacturers ~ A Word of Caution !
Many EU Construction Product/System Manufacturers continue to use the services provided by British Fire Test Laboratories and/or Fire Consultancy Organizations located in Great Britain … some of which have already established EU-based dummy companies and letterheads. These British organizations must be avoided altogether. For example, the practice of fire testing in England and later adding a title page of a Full Test Report with an EU location address is entirely unacceptable !
2020-03-23: The Grenfell Fire Inquiry’s Phase 1 Recommendations (Part V in Volume 4 of the Phase 1 Report), were published on 30 October 2019. The initial issues covered in those Recommendations are fragmentary, lack depth and coherence … and in the case of Fire Alarms, with just one indirect reference to them in Paragraph #33.22 … they are in serious error …
[ Paragraph #33.22 ] There were no plans in place for evacuating Grenfell Tower should the need arise. I therefore recommend:
d. that all high-rise residential buildings (both those already in existence and those built in the future) be equipped with facilities for use by the fire and rescue services enabling them to send an evacuation signal to the whole or a selected part of the building by means of sounders or similar devices ;
FUNDAMENTALS OF A SOLUTION
1. A Fire Alarm (more precisely from here on, a Fire Detection & Warning System) is a critical safety feature in all buildings … ALL BUILDINGS … from the smallest and most simple, to the biggest and most complex … no exceptions !!
In order to survive in a fire emergency, Vulnerable Building Users need more time to react, and evacuate, than other occupants/users. The valuable time provided by early, accurate and precise detection is the only way to effectively facilitate this. The ‘Required Time’ to prepare for evacuation depends on many factors, e.g. building complexity, familiarity of users with evacuation routes, range and severity of user activity limitations, etc.
It follows, therefore, that if building occupants/users have to wait 15, or 20, or 30 minutes before firefighters arrive at the fire scene (Full Response Time*) and ‘an evacuation signal to the whole or a selected part of the building’ is only then sent by those firefighters … all of that valuable evacuation time for vulnerable building users has been lost. This is ridiculous, and makes no sense whatsoever. This Recommendation must be rejected out of hand, and ignored !
[ *Full Response Time: The time interval from the receipt of an emergency communication at the primary public safety answering point (#PSAP) to when emergency response units are initiating action or intervening to control a fire incident. ]
Important Note: In Chapter #34: ‘Looking Ahead to Phase 2’ of Moore-Bick’s Phase 1 Report, Volume 4 … Paragraph #34.14 states …
A question was raised about the width of the stairs, given that they provided the sole means of access to the upper floors of the tower for firefighters as well as the sole means of escape for the occupants. However, the stairs appear to have complied with requirements of the legislation in force at the time of their construction and the expert evidence supports the conclusion that they had sufficient capacity to enable all the occupants of the building to escape within a reasonable time. This aspect of the building will not, therefore, be the subject of further investigation in Phase 2.’
Astounding ! Absurd !! FUBAR !!!
All Fire Emergency Warning Systems must be designed to accommodate People with Hearing Impairments. Audible and visual warning devices must be provided together, as a single combined unit. This is particularly important in noisy and isolated building spaces, e.g. bathrooms, small meeting rooms. Vibrating devices, such as pagers or mobile phones, can be integrated into a building’s fire emergency warning system in order to provide any individual with a tactile emergency alert.
Important Note: Audible sounders, on their own, are never a sufficient Fire Emergency Warning !
2. The Purpose of a Fire Emergency Warning System is to provoke calm, efficient and adaptable evacuation movement by ALL building users/occupants at the earliest possible stage in a fire incident, without causing user confusion, disorientation or panic. In all building types, therefore, a reliable, informative and accessible fire emergency warning system must be installed, and such a system must always have a fire protected electrical supply.
3. To provoke a Calm Response from Building Users … the output from Fire Emergency Warning Devices, e.g. light, sound and messages, must be adapted to the local context of people and building surroundings.
Fire Emergency Audible Warnings … A sufficient number of low-output audible sounders, i.e. between 60-80 dB, must be specified for effectiveness. Small numbers of sounders with high output (in order to reduce costs) should never be specified, as this can lead to confusion, disorientation and panic attacks among some building users/occupants. The output of sounders must be adapted to suit interior surroundings, e.g. in small spaces with hard surfaces a lower sound output will be adequate.
Important Note: When they are asleep, hearing-able children (around ten years of age and under) … and hearing-able older people (around 65 years of age and over) are more difficult to wake and rouse sufficiently for evacuation when alerted by an audible signal alone.
Fire Emergency Visual Warnings … Light strobes/beacons must be clearly visible. To reinforce #1 above … light strobes/beacons must be placed in wash rooms and in other locations within buildings where people may be alone ; they must also be placed in noisy environments.
A sufficient number of low-output strobes/beacons must be specified for effectiveness. Small numbers of strobes/beacons with high output (in order to reduce costs) should never be specified, as these produce a glare which may cause confusion, disorientation and panic attacks among some building users/occupants. The light output of strobes/beacons must be adapted to suit interior surroundings, e.g. in dark rooms.
For light strobes/beacons, a slow rate of flash is important, i.e. no faster than once every two or three seconds, in order to encourage a calm response from building users/occupants and to avoid photosensitivity seizures. Most importantly, the flash of one strobe/beacon must be synchronized with the flashes of all other light strobes/beacons in view.
Fire Emergency Voice Message Warnings … Are essential to improve Warning Credibility. In other words, building users are far less likely to sit around wondering, waiting to see whether this is a ‘real’ fire emergency, a false alarm, a practice evacuation, or an electrical error. Verbal or voice messages must be short and contain appropriate warning information which is easily assimilated. The speaker should be distinct and easy to understand. Live messaging during a fire emergency is preferred over pre-recorded, standard messages. In today’s multi-cultural social environment, messages must be transmitted in at least two to three different languages, as appropriate.
Fire Emergency Directional Warnings … Combination sounder, visible strobe/beacon, and voice messaging Fire Emergency Warning Devices are now a mainstream technology, are readily available, and are being specified in new and existing buildings.
Audible directional signalling must be installed when dealing with difficult building configurations, e.g. in large open office layouts/spaces with minimal signage … where building users/occupants are unfamiliar with their surroundings in modern shopping centres/malls and other complex building types … or visibility of high-level signage may be reduced because of smoke logging.
Directional sounders, which guide building users during a Fire Evacuation towards Exits, Areas of Rescue Assistance and Lift/Elevator Lobbies, must be positioned at carefully chosen, suitable locations. Once reached, a directional sounder must also have a voice messaging capability in order to inform people about the next phase of evacuation.
4. Fire Emergency Warning Systems must be Accessible (for People with Activity Limitations), i.e. capable of transmitting a warning in many formats in order to ensure that all users/occupants perceive and act upon the warning in a calm manner and, thereafter, that effective evacuation movement commences without delay. Warning Credibility improves in direct relation to the type and number of different warning formats.
As well as indirectly referring to Fire Detection and Warning Systems, Paragraph #33.22 in Moore-Bick’s Phase 1 Recommendations has some other things to say about Evacuation. So this is an opportune moment to discuss some practical and human issues concerning Fire Emergency Evacuation … and, straight away, to deal with an unexpected consequence arising from the current CoronaVirus/CoVID-19 Emergency …
CoronaVIRUS / CoVID-19 PANDEMIC
There have been widely reported instances, in many countries, of panic buying in shops because of the 2020 CoronaVirus/CoVID-19 Emergency … but the photograph below illustrates an example of a panic reaction by building management. This appears to be a crime scene … the yellow and black tape is so dramatic. In a real Fire Emergency, many building users/occupants will be reluctant to use this final fire exit ; they will not have the time to read the small print on a notice ; they will attempt to re-trace their path of evacuation and find another exit.
This panic reaction by building management IS a serious impediment to Fire Evacuation !
Whatever the Motives of Building Management …
in countries which have Fire Codes / Regulations, this action is illegal ; and
in these days, when a wide range of ‘smart’ technologies is readily available … this action is inexcusable.
SOME PRACTICAL FIRE EVACUATION ISSUES
A Skill is the ability of a person, resulting from competent training and regular practice, to carry out complex, well-organized patterns of behaviour efficiently and adaptively, in order to achieve some end or goal. All building occupants/users must be skilled for evacuation to an external ‘place of safety’, which is at a safe and remote distance from the fire building. Practice fire evacuations must be carried out sufficiently often to equip building users, particularly vulnerable users, with this skill, i.e. at least once every six months ; in complex building types, practices should be carried out more often. Prior notification to occupants/users, and regular scheduling of practice evacuations should be avoided.
Familiarity with Fire Evacuation Routes will be fostered and greatly improved by means of normal, everyday use by occupants/users. This is an important task for pro-active Building Management in existing buildings … and an important aspect of new building design for Architects and Fire Engineers.
While the transmission of fire emergency warnings in many formats will increase Warning Credibility, close observation of past tragic ‘real’ fire events, e.g. the WTC 9-11 Attacks in New York City, shows that initiation of evacuation and the actual process of evacuation itself can be problematic. An interesting, easily assimilated and user-targeted skills programme of training should incorporate practical solutions to deal with the following typical problems:
Fire Emergency Preparedness: Irregular attendance of building occupants/users at fire prevention and safety training sessions, and participation in practice fire evacuations. Users not being familiar with a building’s fire emergency management plan and not knowing who is in charge … not using a building’s fire evacuation route(s), particularly staircases, during practices … or having no information about where to assemble after evacuating … or, once at a place of safety, not having any head count or identification process ;
Delaying Activities Inside The Fire Building: Once building occupants/users decide to evacuate, but before moving to evacuate, they gather personal effects … seek out friends/co-workers … search for others … make phone calls/send tweets … finish tasks/turn off computers … wait around for instructions … change shoes … and try to obtain permission to leave ;
Delaying Activities Outside The Fire Building: Once outside the building’s final fire exit, but before moving directly to a place of safety, building occupants/users stop to see what is happening … look for friends/co-workers … look for a phone … do not know where to go … or, within the ‘danger zone’ of the fire building, stop to receive medical attention.
It may seem obvious that Fire Evacuation Routes must also be Accessible (for People with Activity Limitations), which also makes routes much safer for every other building user … and sufficiently wide to accommodate Contraflow (emergency access by firefighters or rescue teams into a building and towards a real fire, while building users are still moving away from the fire and evacuating the building) … a harsh lesson learned from the 2001 WTC 9-11 Attacks and the 2017 Grenfell Tower Fire. Since they are new, strange and unusual for many building designers, and most fire engineers … these aspects of building performance are overlooked in nearly every building.
Practice Evacuations should include exercise of the buddy system ; fire safety fittings, e.g. portable fire extinguishers ; and fire evacuation devices intended for use by people with activity limitations which will require more intensive training.
Important Note: During fire emergencies, People with Activity Limitations must be permitted to keep possession of their own personal Facilitation / Mobility Aids.
SOME HUMAN FIRE EVACUATION ISSUES
The actual people who use and occupy buildings are individuals. They are different from each other, and they each have a different range of abilities (in relation to self-protection, independent evacuation to an external place of safety remote from a fire building, and active participation in a building’s fire emergency management plan), behaviour and manner of perceiving their surroundings. Two apparently similar people will also show variations in how they react to and behave in any specific situation, particularly a fire emergency.
Ability / Disability is a Continuum – a gentle gradient on which every person functions and acts at different levels due to personal and environmental, i.e. external, factors.
In situations of severe stress, e.g. during a fire emergency in a building, where there is a lack of preparedness for such an event, a lack of familiarity with evacuation routes, lack of reliable evacuation information, lack of competent leadership and clear direction, and the presence of smoke, user/occupant confusion, disorientation and panic will occur. Standard evacuation movement times will also be non-existent. In addition, people with activity limitations must then deal with many physical barriers which routinely impede their evacuation from buildings, e.g. fire resisting doorsets which are difficult to open, steps along evacuation routes and at final fire exits.
In the case of people with a mental or cognitive impairment, there is a particular need to encourage, foster and regularly practice the adaptive thinking which will be necessary during evacuation a real fire incident.
People with respiratory health conditions will not be able to enter or pass through smoke. People with visual impairments will require continuous, linked tactile and/or voice information during the whole process of fire evacuation. People with psychological impairments, i.e. vertigo and agoraphobia, will be unable to use fire evacuation staircases with glass walls in high-rise buildings. Because of the stigma still associated with disability in many countries, some users/occupants who will need assistance during a fire emergency will be reluctant to self-identify beforehand. Other people may not even be able to recognize that they have an activity limitation or a health condition.
Meaningful Consultation with a person known to occupy or use a building, for the purposes of receiving his/her active co-operation and informed consent (involving a personal representative, if necessary), is an essential component of adequate pre-planning and preparation for a fire emergency.
Building Designers, Fire Engineers and Firefighters should be aware of the following human conditions:
Agoraphobia: A fear of open spaces.
Commentary: Agoraphobia is one of the most commonly cited phobic disorders of people seeking psychiatric or psychological treatment. It has a variety of manifestations, e.g. a deep fear of leaving a building, or of being caught alone in some public place. When placed in threatening situations, agoraphobics may experience a panic attack.
Anosognosia: A neurological disorder marked by the inability of a person to recognize that he/she has an activity limitation or a health condition.
Dementia: Any degenerative loss of intellectual capacity, to the extent that normal and occupational activities can no longer be carried out.
Panic: A sudden overwhelming feeling of anxiety, which may be of momentary or prolonged duration.
Panic Attack: A momentary period of intense fear or discomfort, accompanied by various symptoms which may include shortness of breath, dizziness, palpitations, trembling, sweating, nausea, and often a fear by a person that he/she is going mad.
2019-10-21: Following the very successful Rehabilitation International Asia-Pacific (AP) Conference in Macau, at the end of June 2019 … https://www.rimacau2019.org/ … I was invited by the United Nations Economic & Social Commission for Asia and the Pacific (UNESCAP – https://www.unescap.org/) to submit an Article on ‘Fire Safety for All’ to one of their upcoming publications.
Fire Safety for All … for vulnerable building users, including people with disabilities, young children, frail older people, people with health conditions, and women in late-stage pregnancy … is a critical component of Accessibility & Usability for All … the key factor in facilitating full social participation and inclusion.
Consistent with the philosophy and principles of Sustainable Human & Social Development, a concept which continues to evolve with robust resilience (despite many challenges) … and the 2015-2030 Sustainable Development Framework Agenda … implementation is most effective if carried out at Regional Level … adapted to a Local Context.
Full and effective implementation, in each separate jurisdiction, then requires:
a robust legal base ;
determined political will to implement ‘fire safety for all’ ;
sufficient public financial resources for implementation – ‘fire safety for all’ is a social*, as distinct from a human, right ;
a compassionate and understanding bureaucracy, at all institutional levels ;
competent spatial planners, architects, structural engineers, fire engineers, quantity surveyors, technical controllers, industrial designers, building/facility managers, and crafts/trades people at all levels in construction organizations ;
independent monitoring of ‘fire safety for all’ performance – self-regulation is NO regulation ;
innovative, well-designed fire safety related products, systems and fittings which can be shown to be ‘fit for their intended use’.
[ *Social Rights: Rights to which an individual person is legally entitled, e.g. the right to free elementary education [Art.26(1), UDHR], but which are only exercised in a social context with other people, and with the active support of a competent legal authority, e.g. a nation state.
Commentary: In contrast to human rights, it is not protection from the state which is desired or achieved, but freedom with the state’s help.]
If Policy and Decision Makers are serious, therefore, about meeting the Safety Needs of Vulnerable People in Fire Emergencies … This Is An Absolutely Minimum Threshold Of Practical Action To Bring About Urgent Change …
Article for UNESCAP
Fire Safety for All – Nobody Left Behind !
The rising 21st Century Cities of the Asia-Pacific Region each encompass:
a) an interwoven, densely constructed core ;
b) a very large and widely diverse resident population ;
c) a supporting hinterland of lands, waters and other natural resources ;
together functioning, under the freedoms and protection of law, as …
a complex living system ; and
a synergetic community capable of providing a high level of social wellbeing* for all of its inhabitants.
[ *Social Wellbeing for All: A general condition – for every person in a community, society or culture – of health, happiness, creativity, responsible fulfilment, and sustainable development. ]
In all areas of life and living in this City Community, every person is equal before the law and is entitled, without any discrimination, to equal protection of the law*. When they are in a building, for example, all of its occupants and users have an equal right to feel ‘fire safe’ as required by law. This must also include vulnerable building users, particularly people with disabilities.
[ *Refer to Article 12 in the 2006 United Nations Convention on the Rights of Persons with Disabilities, which has been ratified by nearly every country in the world, including the European Union … and Article 7 in the 1948 Universal Declaration of Human Rights.]
Current national building codes – where they exist – do not protect vulnerable people in fire emergencies: many countries have no legal provisions answering this crucial need, while a small group of countries offer only token, i.e. inadequate, protection. An ethical*, technical response is urgently required, therefore, at regional level in Asia-Pacific. The social, political and institutional challenges blocking effective implementation are immense.
[ *Refer to the 2016 Dublin Code of Ethics: Design, Engineering, Construction & Operation of a Safe, Resilient & Sustainable Built Environment for All. Download from: www.sfe-fire.eu ]
Note: A Regional Implementation Strategy is already in the course of being developed for Asia-Pacific (AP).
Fire Safety for All … for vulnerable building users, including people with disabilities, young children, frail older people, people with health conditions, and women in late-stage pregnancy … is a critical component of Accessibility & Usability for All … the key factor in facilitating full social participation and inclusion. This design objective is achieved by equitable fire prevention and fire protection measures, essential occupant/user practices, independent fire evacuation procedures, proactive management and, as a last but necessary resort, reliable assisted evacuation and/or firefighter rescue.
In the Smart City, nobody must be left behind !
During the first critical 10-15 minutes in a fire emergency – the time between when a fire is first accurately detected, warnings are transmitted, and firefighters arrive at the building – many people with disabilities are more than capable of independent evacuation using reliably functioning lift/elevator fire evacuation assemblies. Independent use of lifts/elevators by people with disabilities is essential during a fire emergency … and must be facilitated.
The enormous benefit for those vulnerable individuals who are capable of negotiating horizontal and vertical circulation routes by themselves is being able to evacuate a building and reach a ‘place of safety’ in the company of other building occupants/users. They remain independent, in control of their own evacuation, and able to leave without waiting for someone else to rescue them or render assistance.
Buildings must remain structurally ‘serviceable’ until all building occupants/users and firefighters have reached a remote ‘place of safety’.
Management systems and fire protection measures in buildings are never 100% reliable. People with disabilities must, therefore, be trained to be self-aware in situations of risk, particularly in fire emergencies, and actively encouraged to develop the skills of self-protection and adaptive self-evacuation.
Essential Features At Building Design Stage
Fire Safety for All must be carefully considered at the initial stages of building design. To be effective, however, the following essential passive and active fire protection measures must be incorporated in buildings …
A. A smart ‘whole building’ fire emergency detection and multi-format warning system is an essential fire safety feature in all building types, new and existing. Vulnerable building occupants/users need much more time to react, and evacuate, than other users during a fire incident.
B. All building occupants/users must be provided with alternative, intuitive and obvious evacuation routes away from a fire outbreak in a building. A significant number of building users will never pass through the smoke generated by fire.
C. All fire evacuation routes in a building must be accessible for building occupants/users, and be sufficiently wide to accommodate contraflow, i.e. building users evacuating while firefighters enter the building at the same time. Under no circumstances must ‘stay put’ policies be normalized, or practiced.
D. Phased horizontal evacuation must be facilitated, in design, by providing ‘buffer zones’ around fire compartments, and adjacent ‘places of relative safety’.
E. All lifts/elevators in a building must be capable of being used during a fire emergency. This is already the case, in most countries, with firefighter lifts.
F. Fire protected evacuation staircases must be sufficiently wide (1.5m between leading handrail edges) to facilitate contraflow and the assisted evacuation of manual wheelchair users; they must open into fire protected lift/elevator lobbies at every floor/storey level, and open directly to the exterior at ground level.
G. Sufficiently large, fire protected ‘areas of rescue assistance’, where people can safely wait during a fire emergency, must adjoin each evacuation staircase on every floor/storey above ground level. When calculating space provision for evacuation and waiting areas in buildings, the minimum reasonable provision for people with disabilities must be 10% of the design building occupant/user population; for people with activity limitations, minimum space provision must rise to 15% of the design occupant/user population.
H. Such is the universal level of fire compartment unreliability, that lift/elevator lobbies and ‘areas of rescue assistance’ must be fitted with an active fire suppression system, i.e. water mist … an environmentally clean suppression medium which is person-friendly, and will not greatly interfere with visibility.
I. In tall, super-tall and mega-tall buildings, every 20th floor/storey must be an accessible ‘floor of temporary refuge’ … and the roofs of those buildings must be capable of being used for aerial evacuation.
J. In health care facilities, e.g. hospitals, the fire safety strategy must always be to ‘protect in place’. Patient evacuation is highly hazardous, and unacceptable.
K. Fire defence plans* must demonstrate a proper consideration for the fire safety, protection and evacuation of all building users/occupants, with a particular and integrated focus on people with activity limitations.
[ *Fire Defence Plan: A pre-determined and co-ordinated use of available human and material means in order to maintain an adequate level of fire safety and protection within a building and, in the event of an outbreak of fire, to ensure that it is brought speedily under control and extinguished … with the aim of minimizing any adverse or harmful environmental impacts caused by the fire.
Commentary 1: A Fire Defence Plan is developed for a specific building at design stage. It later becomes the basis for an occupied building’s Fire Emergency Management Plan.
Commentary 2: A Fire Defence Plan is usually in electronic format and/or hard copy and comprises fire engineering drawings, descriptive text, fire safety related product/system information, with supporting calculations, and the fire test/approval data to demonstrate ‘fitness for intended use’.]
2019-07-31: A very serious problem in modern buildings (post 1950’s), and in many countries around the world … which can lie dormant and hidden from any and all Surface Inspections … until there is an outbreak of #Fire !
Passive/Active Fire Protection Measures, and Building Management Systems (i.e. any combination of human and smart systems), are never 100% Reliable. However, Poor Workmanship on Building Sites and Unauthorized Product / System Substitution are reducing this #Reliability to far below the threshold of legal (or any other) ‘acceptability’.
As a result, Fire Evacuation Routes can quickly become full of dense toxic smoke, impairing/incapacitating people trying to evacuate … the integrity of Fire Compartments can very rapidly be compromised, leading to uncontrolled internal fire spread … and Partial Structural Collapse will be a definite probability.
Most in danger and at high risk in ‘real’ building fires are Vulnerable Building Users and #Firefighters !
[ Vulnerable People: Those people – in a community, society or culture – who are most at risk of being physically, psychologically or sociologically wounded, hurt, damaged, injured, or killed … and include, for example, People with Disabilities, Young Children, People with Health Conditions, Frail Older People, Women in Late Pregnancy, Refugees, Migrants, and the Poor. ]
‘Building Materials and Workmanship’ Must Be Relentlessly Monitored PRIOR TO AND DURING Construction – Afterwards Is TOO LATE !
In these days of #Architects staring at computer screens all day, not being very ‘smart’ in and around actual construction sites … and with Fire Engineering Design Information still merely a #BIM add-on … there are 5 Fundamental Principles of Reliable Building Design, Product Supply and Construction for Fire Safety :
Design of the works must be exercised by an independent, appropriately qualified and experienced architect/engineer/fire engineer, with design competence relating to the fire protection of buildings ;
The Supply of ‘fit for purpose’ fire safety related construction products/systems to the works must be undertaken by reputable organizations with construction competence, particularly in relation to the fire protection of buildings … and all product/system substitution must be pre-authorized ;
Installation/Fitting of fire safety related construction products/systems must be exercised by appropriately qualified and experienced personnel, with construction competence relating to the fire protection of buildings ;
Supervision of the works must be exercised by appropriately qualified and experienced personnel from the principal construction organization ;
Regular Inspections, by appropriately qualified and experienced personnel familiar with the design, and independent of both the design and construction organizations, must be carried out to verify that the works are being executed in accordance with the design.
Self-Regulation / Self-Monitoring Is NO Regulation / NO Monitoring !!
Incomplete / inaccurate information about the number of People, particularly Vulnerable Building Users, still remaining in a Fire Building, and/or the number of Occupants waiting in Areas of Rescue Assistance and Lift/Elevator Lobbies … all resulting from poor Building Management … will greatly increase the Hazards and Risks involved in Firefighter Search and Rescue Operations, and will result in Building Occupant Injuries and Deaths !
Mainstream Fire Codes & Standards DO NOT Protect Vulnerable Building Users and Firefighters !!!
2013-07-19: Once upon a time, back in 1979, when I was flying to Sydney, Australia … one of the scheduled stops on the route was Bahrain and the New International Airport Terminal there. In spite of the flashy and expensive building, I noticed how obsolete looking (and functioning) were the fittings in the toilet area. Could it possibly be, I wondered, that the Arab Gulf Region was being supplied with shoddy, second rate construction products from you-know-where ??
Fast forward to a few years ago … in Riyadh, Saudi Arabia … and I encountered one building – the same building – where one half had a 110 Volt electrical supply, and the other half had a 220 Volt supply. Amazing !?! Two different consultants, or contractors, or whatever … one from North America, and the other from Europe … with the Saudis in the middle, having to tolerate this nonsense !!
DOHA City Fire – Monday, 28 May 2012 …
I distinctly remember that some Irish people who had actually witnessed the Fatal Fire Incident at the ‘Villaggio’ Shopping Mall (www.villaggioqatar.com), in Doha (capital city of Qatar) … were afterwards talking to Mr. Joe Duffy, on the lunchtime ‘Liveline’ Programme (Ireland’s RTE Radio 1 Station).
19 People were killed on that Monday morning in Doha … 13 Children, 4 Teachers, and 2 Firefighters. Many more were injured from inhaling toxic smoke.
According to various news reports … an electrical fire, caused by a light fitting (which was not ‘fit for its intended use’) in a Nike Shop, engulfed a section of the shopping centre … spreading to the Gympanzee Drop-and-Shop Childcare Centre on the first floor.
The staircase leading to the Childcare Centre collapsed … trapping victims inside. One of their fire exits led directly to the seat of the fire, while the other fire exit was locked from the outside.
In addition, the ‘Villaggio’ – a luxury mock-Italian shopping centre (one of the most popular in the country !) where customers could ride around Venetian-style Canals, in Venetian-style Gondolas – was later found to be in breach of legislation because Essential Fire Safety Measures were either inadequate or missing, at the time of the fire: the fire sprinkler system was not working properly; inflammable paint and decorative mouldings were used in the construction; the building did not have effective fire evacuation procedures in place; the building was not equipped with proper fire-fighting equipment; and the fire alarm wasn’t loud enough.
A Qatari Court – Thursday, 20 June 2013 …
The recent outcome from this Qatari Court Case has been nagging at me ever since I saw the news on Al Jazeera (English) … www.aljazeera.com
Only Some of the People having Control / Responsibility were convicted for the Negligence which resulted in the 19 Deaths, and many injuries, at the 2012 ‘Villaggio’ Fatal Fire Incident.
Four people received six-year jail terms, while the fifth received a five-year term. All five are currently out on appeal, and will remain out of custody until the appeals process is completed.
Those convicted include Two Co-Owners of the Childcare Centre, and Members of the Mall’s Management Team. Sheikh Ali Bin Jassim Al Thani, one of the co-owners, is also currently Qatar’s Ambassador to Belgium … while Iman Al-Kuwari, the other co-owner, is the daughter of Qatar’s Culture Minister.
Two other defendants, including the Mall’s Assistant Manager and Head of Security, were cleared of all charges.
Other People having Control / Responsibility were also Careless, Incompetent, and Negligent …
1.At last, we arrive at the Group 8 Recommendations ! At this stage … my impression is that the NIST Team began to run out of steam, because these two short Recommendations barely scratch the surface with regard to the significant education and training needs of the many different design, construction, management, operation, maintenance and emergency response disciplines engaged with, and confronted by, the Built Environment … every day of every week.
After a careful reading of all 30 NIST WTC Recommendations, I hope that you have satisfied yourself/yourselves that these Recommendations must be applied to ALL Buildings … not just Tall Buildings. At various times … Iconic Buildings, and Buildings having a Critical Function or an Innovative Design have been specifically mentioned. And look back to Recommendation 22a … tunnels and subways also made an appearance ! The proper focus for the International Fire Science and Engineering Community must be on the Built Environment as a whole.
At All Levels in a Typical Construction Project … there are also pressing education and training needs. It is of little use if the Project Design Documentation is 100% … and the people actually installing the passive fire protection measures or the active fire protection systems on site don’t know which end is ‘up’ ! The Project Design Documentation, in whatever format, is merely a means to an end … a fully realized and occupied Building, which is fire-safe.
Preferably … we should be discussing the mandatory Re-education and Re-training of Practitioners in the different Disciplines … [CPD (Continuing Professional/Personal Development) is not at all sufficient !] … accompanied by a very necessary Re-engineering of the Stakeholder Professional and Educational Institutions … and other related Organizations, particularly National Authorities Having Jurisdiction (AHJ’s).
Our Best Hope for Transformation … lies with the current crop of third-level undergraduate students in the different disciplines. And, as we are discovering with the introduction of the Structural EuroCodes in the European Union, it will take perhaps 5-8 years of continuous student output to transform pre-9/11 conventional fire engineering … into a post-9/11 and post-Mumbai fire engineering which is properly ‘reliability-based’ and ‘person-centred’, i.e. Sustainable Fire Engineering !
As for the Future, and Some Conclusions to this Series … coming shortly to a computer monitor screen near you !
2005 NIST WTC RECOMMENDATIONS
GROUP 8. Education and Training
The professional skills of building and fire safety professionals should be upgraded through a national education and training effort for fire protection engineers, structural engineers, and architects. The skills of building regulatory and fire service personnel should also be upgraded to provide sufficient understanding and the necessary skills to conduct the review, inspection, and approval tasks for which they are responsible.
NIST WTC Recommendation 29.
NIST recommends that continuing education curricula be developed, and programmes be implemented for: (1) training fire protection engineers and architects in structural engineering principles and design; and (2) training structural engineers, architects, fire protection engineers, and code enforcement officials in modern fire protection principles and technologies, including the fire resisting design of structures; and (3) training building regulatory and fire service personnel to upgrade their understanding and skills to conduct the review, inspection, and approval tasks for which they are responsible. The outcome would further the integration of the disciplines in effective fire-safe design of buildings. Affected Organizations: AIA, SFPE, ASCE, ASME, AISC, ACI, and state licensing boards. Model Building Codes: Detailed criteria and requirements should be incorporated into the model building codes under the topic ‘Design Professional in Responsible Charge’.
NIST WTC Recommendation 30.
NIST recommends that academic, professional short-course, and web-based training materials in the use of computational fire dynamics and thermo-structural analysis tools be developed and delivered to strengthen the base of available technical capabilities and human resources.Affected Organizations: AIA, SFPE, ASCE, ASME, AISC, ACI, ICC, and NFPA.