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Article
Publication date: 23 March 2022

Alessandro Premier, Ali GhaffarianHoseini and Amirhosein GhaffarianHoseini

This research is focused on solar-powered (smart) urban furniture, and it is aimed at providing a classification of it and to understand the main problems related to the…

Abstract

Purpose

This research is focused on solar-powered (smart) urban furniture, and it is aimed at providing a classification of it and to understand the main problems related to the adoption of these devices and where future design-led research should focus.

Design/methodology/approach

The methodology involved a selection of international case studies in important urban contexts focussing on three main aspects: architectural integration, context sensitivity and system visibility of photovoltaic (PV) technologies applied to smart urban furniture.

Findings

The preliminary results indicate that potential limits to the application of these technologies are urban morphology and lack of design of some solutions.

Research limitations/implications

This research is focused on solar-powered (smart) urban furniture. Further investigation on built case studies may lead to a better understanding of the efficiency of the smart urban furniture and their appreciation by the people.

Practical implications

This study can be useful to understand the potential use and customization of these products in New Zealand.

Social implications

In Auckland’s central business district, these tools can be useful to help homeless people to recharge their phones and offer access to free Wi-Fi. Energy generation can be useful also for providing temporary heating during winter and so forth.

Originality/value

Design proposals and research highlight public benefits of smart urban furniture without considering aspects like their integration with the surrounding context. This is also the first study that identifies lack of design in some of the solutions available in the market.

Details

Smart and Sustainable Built Environment, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 20 August 2021

Megan Burfoot, Amirhosein Ghaffarianhoseini, Nicola Naismith and Ali Ghaffarianhoseini

Informed by acoustic design standards, the built environments are designed with single reverberation times (RTs), a trade-off between long and short RTs needed for…

63

Abstract

Purpose

Informed by acoustic design standards, the built environments are designed with single reverberation times (RTs), a trade-off between long and short RTs needed for different space functions. A range of RTs should be achievable in spaces to optimise the acoustic comfort in different aural situations. This paper proclaims a novel concept: Intelligent passive room acoustic technology (IPRAT), which achieves real-time room acoustic optimisation through the integration of passive variable acoustic technology (PVAT) and acoustic scene classification (ASC). ASC can intelligently identify changing aural situations, and PVAT can physically vary the RT.

Design/methodology/approach

A qualitative best-evidence synthesis method is used to review the available literature on PVAT and ASC.

Findings

First, it is highlighted that dynamic spaces should be designed with varying RTs. The review then exposes a gap of intelligently adjusting RT according to changing building function. A solution is found: IPRAT, which integrates PVAT and ASC to uniquely fill this literature gap.

Originality/value

The development, functionality, benefits and challenges of IPRAT offer a holistic understanding of the state-of-the-art IPRAT, and a use case example is provided. Going forward, it is concluded that IPRAT can be prototyped and its impact on acoustic comfort can be quantified.

Details

Smart and Sustainable Built Environment, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 1 June 2021

Okechukwu Bruno-Kizito Nwadigo, Nicola Naismith, Ali GhaffarianHoseini, Amirhosein GhaffarianHoseini and John Tookey

Dynamic planning and scheduling forms a widely adopted smart strategy for solving real-world problems in diverse business systems. This paper uses deductive content…

Abstract

Purpose

Dynamic planning and scheduling forms a widely adopted smart strategy for solving real-world problems in diverse business systems. This paper uses deductive content analysis to explore secondary data from previous studies in dynamic planning and scheduling to draw conclusions on its current status, forward action and research needs in construction management.

Design/methodology/approach

We searched academic databases using planning and scheduling keywords without a periodic setting. This research collected secondary data from the database to draw an objective comparison of categories and conclusions about how the data relates to planning and scheduling to avoid the subjective responses from questionnaires and interviews. Then, applying inclusion and exclusion criteria, we selected one hundred and four articles. Finally, the study used a seven-step deductive content analysis to develop the categorisation matrix and sub-themes for describing the dynamic planning and scheduling categories. We used deductive analysis because of the secondary data and categories comparison. Using the event types represented in a quadrant mapping, we delve into where, when, application and benefits of the classes.

Findings

The content analysis showed that all the accounts and descriptions of dynamic planning and scheduling are identifiable in an extensive research database. The content analysis reveals the need for multi-hybrid (4D BIM-Agent based-discrete event-discrete rate-system dynamics) simulation modelling and optimisation method for proffering solutions to scheduling and planning problems, its current status, tools and obstacles.

Originality/value

This research reveals the deductive content analysis talent in construction research. It also draws direction, focuses and raises a question on dynamic planning and scheduling research concerning the five-integrated model, an opportunity for their integration, models combined attributes and insight into its solution viability in construction.

Details

Smart and Sustainable Built Environment, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 17 March 2022

Kamal Dhawan, John Tookey, Ali GhaffarianHoseini and Amirhosein GhaffarianHoseini

A long-term collaborative public water infrastructure procurement contract in New Zealand adopts “Enterprise Alliance” delivery (strategy) with a Construction…

Abstract

Purpose

A long-term collaborative public water infrastructure procurement contract in New Zealand adopts “Enterprise Alliance” delivery (strategy) with a Construction Consolidation Centre (CCC) (operational) logistics solution. New Zealand's unique spatial, market, regulatory and economic circumstances present a research gap pertaining to the sustainability impacts of the combinatory implementation. The paper suggests a literature review-based research framework for examining these.

Design/methodology/approach

Systematic literature review (SLR) discovers unique New Zealand attributes, and sustainability impacts of both the approaches overseas. Towards formulating a research framework, the paper discusses sustainability of construction and its New Zealand context, and research focus within the implemented model. Significant issues from SLR reveal Design, Logistics, Impacts and Spin-offs research domains. The paper suggests a research framework and examines an appropriate research design.

Findings

CCC implementation under a programme alliance is without precedent in New Zealand. Variance of New Zealand's unique attributes from North American and European characteristics behind successful implementation are likely to impact domestic outcomes. A research framework to test this hypothesis will enable investigating the relevance of the concepts to New Zealand settings and provide a contextual implementation datum. Implementation benchmarks will potentially influence public policy and enrich indigenous knowledge corpus, potentially transferrable to associated domains (urban planning, transportation and energy).

Originality/value

The paper attempts to define a research direction in the domain of applying supply chain management principles to the New Zealand's construction sector by investigating the employment of a CCC in a collaborative environment as an infrastructure project delivery vehicle with sustainability leanings.

Details

Smart and Sustainable Built Environment, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 1 December 2020

Okechukwu Nwadigo, Nicola Naismith Naismith, Ali Ghaffarianhoseini, Amirhosein Ghaffarian Hoseini and John Tookey

A construction project is complex and requires dynamic modelling of a range of factors that deters time performance because of uncertainty and varying operating…

Abstract

Purpose

A construction project is complex and requires dynamic modelling of a range of factors that deters time performance because of uncertainty and varying operating conditions. In construction project systems, the system components are the interconnected stages, which are time-dependent. Within the project stages are the activities which are the subsystems of the system components, causing a challenge to the analysis of the complex system. The relationship of construction project time management (CTM) with the construction project time influencing factors (CTFs) and the adaptability of the time-varying system is a key part of project effectiveness. This study explores the relationship between CTM and CTF, including the potentials to add dynamical changes on every project stage.

Design/methodology/approach

This study proposed a dynamic Bayesian network (DBN) model to examine the relationship between CTM and CTF. The model investigates the time performance of a construction project that enhances decision-making. First, the paper establishes a model of probabilistic reasoning and directed acrylic graph (DAG). Second, the study tests the dynamic impact (IM) of CTM-CTF on the project stages over a specific time, including the adaptability of time performance during disruptive CTF events. In demonstrating the effectiveness of the model, the authors selected one-organisation-single-location road-improvement project as the case study. Next, the confirmation of the model internal validity relied on conditional probabilities and the project knowledge experts' selected from the case company.

Findings

The study produced structural dependencies of CTM and CTF with probability observations at each stage. A predictive time performance analysis of the model at different scenarios evaluates the adaptability of CTM during CTF uncertain events. The case demonstration of the model application shows that CTFs have effects on CTM strategy, creating the observations to help time performance restorations after disruptions.

Research limitations/implications

Although the case company experts' panel confirms the internal validity of the results for managing time, the model used conditional probability table (CPT) and project state values from a project contract. A project-wide application then will require multi-case data and data-mining process for generating the CPTs.

Practical implications

The study developed a method for evaluating both quantitative and qualitative relationships between CTM and CTF, besides the knowledge to enhance CTM practice and research. In construction, the project team can use model observations to implement time performance restorations after a predictive or reactive disruption, which enhances decision-making.

Originality/value

The model used qualitative and qualitative data of a complex system to generate results, bounded by a range of probability distributions for CTM-CTF interconnections during time performance disruptions and restorations. The research explores the approach that can complement the mental CTM-CTF modeling of the project team. The CTM-CTF relationship model developed in this research is fundamental knowledge for future research, besides the valuable insight into CTF influence on CTM.

Details

Engineering, Construction and Architectural Management, vol. 28 no. 10
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 7 September 2021

Dat Tien Doan, Ali GhaffarianHoseini, Nicola Naismith, Amirhosein GhaffarianHoseini, Tongrui Zhang and John Tookey

Green building information modelling (BIM) has been highlighted as an essential topic owing to its potential benefits. However, both Green Star and BIM are still in their…

Abstract

Purpose

Green building information modelling (BIM) has been highlighted as an essential topic owing to its potential benefits. However, both Green Star and BIM are still in their earlier stages in New Zealand. This paper aims to examine and evaluate the benefits, barriers/challenges and solutions for the integration of Green Star and BIM in New Zealand.

Design/methodology/approach

In this paper, a total of 77 responses collected from construction professionals in New Zealand using questionnaires were analysed through descriptive and statistical tests.

Findings

Building performance modelling used for Green Star assessment can be implemented using BIM; this was highlighted as the most significant benefit of the integration. Whereas, the most significant barrier preventing the integration of Green Star and BIM was the fact they are two completely separate processes. Regarding the solutions for the integration, showcasing BIM-Green Star benchmark projects was considered as the most effective solution amongst a range of eight provided.

Originality/value

The research provided insights into Green Star–BIM integration in New Zealand. By evaluating the significance of the benefits, barriers/challenges and solutions for the integration, this research could be used as a guideline for Green Star and BIM development by New Zealand Green Building Council (NZGBC), the Government and construction practitioners in New Zealand. Specifically, the results here could be valuable inputs for Green Star manuals and the New Zealand BIM handbook.

Details

Smart and Sustainable Built Environment, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 9 July 2020

Dat Tien Doan, Ali GhaffarianHoseini, Nicola Naismith, Amirhosein Ghaffarianhoseini, Tongrui Zhang and John Tookey

This research aims to explore the perspectives of the key actors in the New Zealand construction industry towards BIM adoption. Specifically, four themes are examined…

Abstract

Purpose

This research aims to explore the perspectives of the key actors in the New Zealand construction industry towards BIM adoption. Specifically, four themes are examined, including what BIM is; BIM knowledge and understanding; benefits of BIM adoption; and challenges/barriers to BIM adoption.

Design/methodology/approach

A qualitative approach using 21 semi-structured interviews with industry experts was adopted.

Findings

The results raise a question concerning whether the New Zealand construction industry needs a unique definition of BIM to achieve a clear and consistent understanding amongst construction practitioners. It was found out that most of the construction practitioners in New Zealand are not well aware of BIM, especially the contractors, QSs, supply chain companies and the SMEs. Fourteen potential benefits and ten barriers/challenges to BIM adoption were identified. Individually, time-saving was considered as the most benefit of BIM adoption while BIM understanding was suggested as the most significant barrier by all the interviewees.

Originality/value

The research provides valuable insights into BIM understanding as well as recommendations regarding BIM adoption in New Zealand. The results could be considered baseline information for the companies and government to have effective strategies towards BIM adoption. Furthermore, it confirms that characteristics such as benefits and barriers to BIM adoption amongst different countries could be similar. Therefore, it could be useful to analyse the studies, strategies and practices of the pioneer countries in BIM adoption for the implementation.

Details

Smart and Sustainable Built Environment, vol. 10 no. 4
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 5 September 2016

Ali GhaffarianHoseini, John Tookey, Amirhosein GhaffarianHoseini, Nicola Naismith and James Olabode Bamidele Rotimi

The purpose of this paper is to review extant literature and to provide perspectives on approaches to enhancing built environment sustainability in Africa. There is a…

Abstract

Purpose

The purpose of this paper is to review extant literature and to provide perspectives on approaches to enhancing built environment sustainability in Africa. There is a mismatch between global societal resources and the increasing demand for natural resources. The consequences of this mismatch are prevalent in many African countries, causing the need to implement of built environment sustainability as a matter of cause.

Design/methodology/approach

Little research has been undertaken to date with a focus on the environmental sustainability of Africa. With this in mind the review was undertaken through a series of incremental steps. It began with an initial review, before developing through exploratory and development phases. The process culminated with the refined literature review presented.

Findings

The paper finds that a different approach is required to achieve built sustainable development for developed and developing countries, with a clear difference in terms of its application observed between the Northern and Southern hemispheres. Current energy and water crisis facing Africa is brought to the fore and an evaluation is provided of the systems being used to ameliorate its effects. The study explores a range of technological solutions that are appropriate for consideration in the African context. It also examines the barriers that need to be overcome to facilitate the widespread use of the suggested solutions in Africa.

Originality/value

This study examines built environment sustainability through the Africa lens. It highlights its importance and the contextual factors inhibiting the widespread uptake of built environment sustainability solutions. The study offers a number of recommendations for the future to encourage long-term built environment sustainability in Africa and more specifically the Sub-Saharan region.

Details

Smart and Sustainable Built Environment, vol. 5 no. 3
Type: Research Article
ISSN: 2046-6099

Keywords

Article
Publication date: 17 July 2017

Ali GhaffarianHoseini, Dat Tien Doan, Nicola Naismith, John Tookey and Amirhosein GhaffarianHoseini

Green Star is becoming a broadly accepted mark of design quality and environmental sustainability. Compared to other green tools, Green Star is considered as one of main…

1394

Abstract

Purpose

Green Star is becoming a broadly accepted mark of design quality and environmental sustainability. Compared to other green tools, Green Star is considered as one of main streams green assessment tools, which cover almost sustainable criteria. Simultaneously, building information modelling (BIM) has also been introduced into the industry. BIM is expected to aid designers to shift the construction industry towards more environmentally and economically sustainable construction practice. Whilst the aspirations of Green Star rating and BIM implementation are broadly aligned, in the context of New Zealand this has led to some disconnects in design strategy and process. The purpose of this paper is to improve the practicality of BIM implementations for delivering Green Star certification in New Zealand.

Design/methodology/approach

The extensive literature review is conducted through a series of incremental steps. A conceptual framework focussing on the relationship between benefits and challenges of BIM and Green Star is then developed.

Findings

BIM supports practitioners to achieve the majority of Green Star criteria (75 per cent). Energy efficiency criterion is the key factor affecting the assessment process of Green Star and National Australian Built Environment Rating System in New Zealand. Research questions about lessening the challenges which can be encountered during the BIM and Green Star implementation are developed.

Research limitations/implications

This paper is limited to a conceptual research. Further empirical research should be conducted to validate and modify the conceptual framework and the propositions presented in this paper to provide an initial insight into BIM and Green Star connectivity within the context of New Zealand.

Originality/value

This paper provided a clear picture for investors, developers, practitioners about benefits and challenges of BIM and Green Star implementation. The outcomes are anticipated to deliver visions for shifting the country further towards development of sustainable future cities.

Details

Engineering, Construction and Architectural Management, vol. 24 no. 4
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 31 March 2020

Hanan M. Taleb and Lama Abumoeilak

This paper aims to find ways to optimise the thermal performance of this courtyard design in current urban communities in hot arid regions.

Abstract

Purpose

This paper aims to find ways to optimise the thermal performance of this courtyard design in current urban communities in hot arid regions.

Design/methodology/approach

The case study for this research is the Dubai sustainable city residential cluster. After collecting weather data from a site visit, four courtyard configurations were suggested and assessed using ENVI-met simulation analysis software to build a virtual model to represent the base case. This model is used to evaluate the thermal behaviour of outdoor urban spaces. The four courtyard layout scenarios were suggested and tested against the base case model. Scenario one is u-shaped, scenario two is linear, scenario three has central buildings with square courtyards and finally, scenario four has u-shaped buildings with square courtyards.

Findings

All the courtyard scenarios achieved an adequate level of user satisfaction, and the wind speed and distribution affected the relative humidity of the outdoor areas. The main findings indicate that courtyard scenario four provided the best microclimatic behaviour within the urban community, as the relative humidity dropped from 56.27% to 48% and the temperature was reduced from 43.03 °C to 41.03 °C.

Research limitations/implications

The study was focused on Dubai and on urban levels, but the findings can be generalized to cover most of courtiers that have similar climatic and environmental contexts.

Practical implications

Architects and urban planners will recognize the potential to reduce energy due to natural ventilation and lower solar radiation.

Social implications

If the findings be applied, this will lead to energy reduction as well as building foot print reduction.

Originality/value

This paper contributes to the existing literature by comprehensively reviewing the concept of courtyards in hot climate and in a region of shortage of studies conducted. It will draw future recommendations of how and where to design courtyards within urban communities.

Details

Smart and Sustainable Built Environment, vol. 10 no. 1
Type: Research Article
ISSN: 2046-6099

Keywords

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