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The purpose of this paper is to present a deep ensemble neural network model for the detection of forest fires in aerial vehicle videos.

Presented deep ensemble models include four convolutional neural networks (CNNs): a faster region-based CNN (Faster R-CNN), a simple one-stage object detector (RetinaNet) and two different versions of the you only look once (Yolo) models. The presented method generates its output by fusing the outputs of these different deep learning (DL) models.

The presented fusing approach significantly improves the detection accuracy of fire incidents in the input data.

The computational complexity of the proposed method which is based on combining four different DL models is relatively higher than that of using each of these models individually. On the other hand, however, the performance of the proposed approach is considerably higher than that of any of the four DL models.

The simulation results show that using an ensemble model is quite useful for the precise detection of forest fires in real time through aerial vehicle videos or images.

By this method, forest fires can be detected more efficiently and precisely. Because forests are crucial breathing resources of the earth and a shelter for many living creatures, the social impact of the method can be considered to be very high.

This study fuses the outputs of different DL models into an ensemble model. Hence, the ensemble model provides more potent and beneficial results than any of the single models.

Previous qualitative research by Horsley (2020) and Lee (2019) highlighted the importance of self-concept (SC) in understanding fire use. This study, therefore, aims to further investigate the relevance of SC in non-criminalised fire use, with a view towards informing early interventions for firesetting prevention.

In this preliminary study, ten participants engaging in extensive, non-criminalised fire use were interviewed about their fire-related experiences and how this relates to SC. This was analysed using techniques informed by the grounded theory.

Three core categories were identified: control, identity and self-esteem, which provide a preliminary framework for understanding how SC and non-criminalised fire use are inter-related. The core categories relate to the study aim because they are conceptualised as three elements of SC, which are strengthened through interactions with fire. The mechanisms through which the categories relate to fire use and SC are discussed.

Forensic implications are discussed regarding early intervention and prevention. The authors argue that knowledge of non-criminalised fire use could provide a valuable blueprint for healthy fire use and, thus, feed into treatment and intervention. Given that previous research has highlighted the importance of SC in relation to how and why people interact with fire, the authors suggest that it should be given greater emphasis in clinical work with those thought to be at risk of firesetting.

To date, firesetting research has focused primarily on criminalised acts, i.e. arson. This paper adopts a different approach and explores how and why people engage with fire in healthy and adaptive ways.

This study aims to explore whether early anti-social fire exposure (ASFE) is associated with how adults engage with fire and how they view fire.

An opportunistic sample (N = 326) was recruited. Participants completed an online survey exploring ASFE, fire use, strength of fire-beliefs and interest in/attitudes supportive of fire. Additionally, implicit fire bias was measured using the affect misattribution procedure (AMP).

Participants with ASFE engaged with more criminalised fire use as adults. They also scored higher on fire interest and general fire beliefs and showed an implicit dislike of fire stimuli, compared to non-exposed participants (although differences in fire use were not statistically significant when gender was accounted for). Males also had higher levels of fire interest, held stronger fire related beliefs and were more likely to have been exposed to ASFE during childhood. However, there were no gender differences in fire use or on the implicit task.

The findings have practical application, namely in relation to early intervention and rehabilitative approaches. However, a limitation is that participants’ cultural background were not accounted for. Additionally, we advise caution in interpreting the implicit results and call for further research.

The need for better early interventions for young people is highlighted, along with better screening which, currently, is unstandardised and inconsistent across the country (Foster, 2020). This demands a community-engagement approach.

This is the first study to explore type of early exposure to fire. It is also the first to adopt the AMP as a measure of implicit fire-bias.

Psychological research on fire has focussed primarily on its misuse in the form of arson and firesetting, which reflects a tradition in forensic psychology for focussing on risk and pathological behaviour. However, this is inconsistent with the strengths-based approach because it fails to account for positive aspects of fire and law-abiding/ healthy interactions with fire. This study aims to explore the psychology of non-criminalised forms of fire use. It is predicated on a novel, dimensional, conceptualisation of fire-related behaviour – the continuum of fire use (CoFU; Horsley, 2020, 2021).

Semi-structured interviews were conducted with 12 adults who use fire in law-abiding forms. Data were analysed using techniques informed by grounded theory. Steps were taken to ensure reliability and validity, including a Cohen’s Kappa calculation, which indicated an agreement level of 0.8 between two raters.

Four core themes were identified relating to the benefits of fire on psychological well-being, namely, immediate gratification; hope and empowerment; self-concept and emotional security.

Drawing on findings from this study, a theoretical framework of the psychology of non-criminalised fire use is presented. This is a preliminary conceptualisation and more work is needed to address this under-researched topic.

The findings can inform the work of forensic practitioners. They highlight the importance of considering service users' positive interactions with fire, alongside maladaptive/ criminal use. This has implications for the assessment of fire setters, as well as rehabilitative approaches.

It is argued in this paper that a society-wide approach is key to firesetting reduction. More specifically, findings can inform the development and refinement of early intervention programmes, which focus on supporting young people to develop a healthy relationship with fire.

To the best of the authors’ knowledge, this study is the first to explore the psychology of non-criminalised forms of fire use. It is predicated on a novel, dimensional, conceptualisation of fire-related behaviour – the continuum of fire use (CoFU; Horsley, 2020, 2021a, 2021b).

Most individuals regularly encounter fire, but certain uses are legally disallowed. Horsley (2020, 2021; in press) proposed the continuum of fire use theory (CoFUT), which posits that the legitimacy of fire use exists on a spectrum. This study aims to investigate the CoFUT and to elucidate the process of conceptualising legitimacy in a sample of legitimate fire users.

A sample of 16 legitimate fire users underwent semi-structured interviews regarding their own experiences with fire, the factors considered when determining the legitimacy of fire use and the relationships between those factors. The data extracted was subjected to conceptual analysis.

Analysis indicated that the legitimacy of fire use is best conceptualised along a continuum. Placement on the continuum required consideration of seven defining attributes: function; location; scale; materials used; characteristics of the actor(s); potential and actual consequences, and social acceptance. These attributes were shown to have interactive semantic relationships with one another.

A continuum approach to understanding fire use is a novel conceptualisation. Exposing the nuances that exist along the continuum could inform early intervention strategies aimed at fostering healthy relationships between young people and fire. Furthermore, practitioners working with arsonists would benefit from adopting a continuum perspective that allows for consideration of offenders’ individualised trajectory “up and down” the continuum of fire use.

Findings offer support for the CoFUT (2020; 2021; in press) and provide insight into how the legitimacy of fire use is conceptualised in legitimate fire users.

This paper aims to present exploratory research on how people in Aotearoa New Zealand experience and learn about fire, and how they think and feel about fire as adults.

A qualitative survey with a sample of 40 young adults aged 18–23 years in Aotearoa New Zealand were recruited through Prolific Academic. Reflexive thematic analysis was used to construct themes across participants experiences.

Four themes were constructed that described participants’ learning about fire and were named influence of context and internal responses to fire, development of normative beliefs about fire, learning how and when fire can be used and learning about fire safety. Two themes were developed that described participants thoughts and feelings about fire as an adult. These were named knowledge is power and emotional congruence with fire. Results highlight the significant role of parental modelling, reinforcement and sensory experiences in the way individuals experience and learn about fire.

Understanding fire learning is important for establishing which experiences may lead to appropriate and inappropriate fire use which in turn can inform fire prevention initiatives.

To the best of the authors’ knowledge, this research represents one of the first studies to directly examine fire learning in the general population.

This paper aims to present a systematic review of the published literature on building information model (BIM)-based simulation tools used for occupant evacuation over the past 23 years.

A literature review was conducted on BIM-based simulation tools used for occupant evacuation over the past 23 years. The search identified a total of 37 relevant papers, which were reviewed. The paper describes the use of BIM-based simulation tools over the years and identifies the research gaps.

BIM-based simulation tools have undergone progressive development, with constant improvements through the integration of advanced tools and collection of more data. These tools can assist in identifying faults in the building design. The outcomes of the simulation were not entirely accurate, as real-life scenarios vary depending on the various building types and the behavior of their occupants.

This study contributes to the literature through reviewing the capabilities of BIM-based simulation tools and the different simulation methods along with their limitations.

Fire safety engineers and architects can comprehend the utilization of BIM-based simulation tools to enhance the fire evacuation in light of their shortcomings and flaws.

BIM-based simulation tools are becoming more advanced and widely used. There has not been a comprehensive evaluation of the capabilities of the integration of BIM tools and simulation modeling for occupant evacuation. This study guides researchers on the capabilities and efficiencies of integrated solutions for occupant evacuations and their inherent shortcomings. The study identifies future research areas in BIM-based tools for occupant evacuation.

The purpose of this paper is to investigate human behaviour during fire evacuations in multi-storey residential buildings through a focus on the challenges and obstacles that occupants face. In addition, the paper aims to study all the various behaviours that are relevant to the evacuation strategies/plans in the UK of multi-storey buildings in large cities.

A literature review was conducted to identify the factors occupants face and also the decision making of occupants regarding the methods of egress. A mixed methods research was adopted using interviews and a questionnaire survey. The findings from the interviews and survey are benchmarked against the information gathered from the literature review.

The paper identifies various challenges that occupants face when evacuating a multi-storey residential building. In terms of the decision-making process, the research results evidence that occupants could be given more information on the evacuation procedures within their specific building. The paper also finds that occupants remain reluctant to use a lift during evacuation in fire event, irrespective of any signage clearly stating that is appropriate to do so in the context of modern lift technology.

This paper contributes to the body of knowledge available on the evacuation of multi-storey buildings located in large cities within the UK, outlining the potential areas for future research, focussed on providing an insight of the behavioural decisions made by the occupants make when evacuating a building in the event of a fire.

Perforated composite beams are an increasingly popular choice in the construction of buildings because they can provide a structurally and materially efficient design solution while also facilitating the passage of services. The purpose of this paper is to examine the behaviour of restrained perforated beams, which act compositely with a profiled slab and are exposed to fire. The effect of surrounding structure on the composite perforated beam is incorporated in this study using a virtual hybrid simulation framework. The developed framework could also be used to analyse other structural components in fire.

A finite element model is developed using OpenSees and OpenFresco using a virtual hybrid simulation technique, and the accuracy of the model is validated using available fire test data. The validated model is used to investigate some of the most salient parameters such as the degree of axial and rotational restraint, arrangement of the openings and different types of fire on the overall fire behaviour of composite perforated beams.

It is shown that both axial and rotational restraint have a considerable effect on time-displacement behaviour and the fire performance of the composite perforated beam. It is observed that the rate of heating and the consequent development of elevated temperature in the section have a significant effect on the fire behaviour of composite perforated beams.

The paper will improve the knowledge of readers about modelling the whole system behaviour in structural fire engineering and the presented approach could also be used for analysing different types of structural components in fire conditions.

Standard fire resistance curves such as ASTM E119 have been used for so long in structural fire practice. The issue with use of these curves that they do not represent real fire scenarios. As a result, the alternatives have been to either conduct experiments or find other tools to represent a real fire scenario. Therefore, the purpose of this paper is to understand the temperature effects resulted from a designed fire on steel beams and whether the standard fire curves represent a designed fire scenario.

Computational fluid dynamics (CFD) models were developed to simulate a designed fire scenario and to understand the structural responses on the beams under elevated temperatures. Consequently, the results obtained from the CFD models were compared with the results of three-dimensional (3D) non-linear finite element (FE) models developed by other researchers. The developed FE models were executed using a standard fire curve (ASTM E119). A parametric study including two case studies was conducted.

Results obtained from performing this study showed the importance of considering fire parameters such as fuel type and flame height during the thermal analysis compared to the standard fire curves, and this might lead to a non-conservative design as compared to the designed fire scenario. The studied cases showed that the steel beams experienced more degradation in their fire resistance at higher load levels under designed fires. Additionally, the models used the standard fire curves underestimated the temperatures at the early stages.

This paper shows results obtained by performing a comparison study of models used ASTM E119 curve and a designed fire scenario. The value of this study is to show the variability of using different fire scenarios; thus, more studies are required to see how temperature history curves can be used to represent real fire scenarios.