scholarly journals Dynamic relationship between embodied and operational impacts of buildings

Author(s):  
Saheed O. Ajayi ◽  
Lukumon O. Oyedele ◽  
Jamiu A. Dauda

Purpose Buildings and their construction activities consume a significant proportion of mineral resources excavated from nature and contribute a large percentage of CO2 in the atmosphere. As a way of improving the sustainability of building construction and operation, various sustainable design appraisal standards have been developed across nations. Albeit criticism of the appraisal standards, evidence shows that increasing sustainability of the built environment has been engendered by such appraisal tools as Building Research Establishment Environmental Assessment Method (BREEAM), Code for Sustainable Homes (CfSH), Leadership in Energy and Environmental Design and Comprehensive Assessment System for Built Environment Efficacy, among others. The purpose of this paper is to evaluate the effectiveness of the appraisal standards in engendering whole lifecycle environmental sustainability of the built environment. Design/methodology/approach In order to evaluate the adequacy of sustainability scores assigned to various lifecycle stages of buildings in the appraisal standards, four case studies of a block of classroom were modelled. Using Revit as a modelling platform, stage by stage lifecycle environmental impacts of the building were simulated through Green Building Studio and ATHENA Impact estimator. The resulting environmental impacts were then compared against the assessment score associated with each stage of building lifecycle in BREAAM and CfSH. Findings Results show that albeit the consensus that the appraisal standards engender sustainability practices in the AEC industry, total scores assigned to impacts at each stage of building lifecycle is disproportionate to the simulated whole-life environmental impacts associated with the stages in some instances. Originality/value As the study reveals both strengths and weaknesses in the existing sustainability appraisal standards, measures through which they can be tailored to resource efficiency and lifecycle environmental sustainability of the built environment are suggested.

2019 ◽  
Vol 8 (4) ◽  
pp. 270-291 ◽  
Author(s):  
Kate Krueger ◽  
Adam Stoker ◽  
Gabrielle Gaustad

Purpose The construction, use and demolition of buildings carry enormous environmental burdens. As one step to reduce a building’s environmental impact, green building design guidelines and certification programs, such as Leadership in Energy and Environmental Design, Cradle to Cradle and the Whole Building Design Guide, promote the specification of alternative, non-traditional building materials. Alternative materials carry a variety of potential benefits: reducing the amount of energy and other resources needed to create building materials; creating healthier indoor and outdoor environments; diverting or reducing waste from landfills; reducing the use of scarce, critical or economically volatile materials; and spurring innovation in the building industry. However, a lack of clarity surrounds alternative materials and creates a barrier to their usage. The purpose of this paper is to review definitions of alternative materials in various design guidelines in order to provide context to their specification and usage. Design/methodology/approach Through a survey of green building programs and guidelines, existing literature on alternative materials, and life-cycle assessment using multiple inventory databases, this study tackles the following questions: what constitutes an alternative building material; what are the current barriers to their specification; how are they specified in the most common design guidelines; and do alternative building materials present a “greener” alternative? Findings These results show that while often alternative materials do in fact show promise for reducing environmental impacts of the built environment, by how much can be a challenging question to quantify and depends on a variety of factors. While many green building guides and certification systems provide recommendations for use of alternative materials, the sheer diversity and uncertainty of these systems coupled with the complexity in understanding their impacts still present a significant barrier to their specification. Much work remains in a variety of disciplines to tackle these barriers. A clear emphasis should be on better understanding their environmental impacts, particularly with respect to the context within the built environment that their specification will provide energy, resource and emission savings. Other key areas of significant work include reducing costs, removing regulatory and code barriers, and educating designers, consumers, and end-users. Originality/value Alternative materials are defined and specified in a diversity of contexts leaving the design and construction communities hesitant to promote their use; other work has found this to be a key barrier to their widespread usage. By compiling definitions, barriers and design guidelines instructions while also exploring analytically the benefits of specific cases, this work provides a foundation for better understanding where new, more sustainable materials can be successfully specified.


Encyclopedia ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 472-481
Author(s):  
Nasim Aghili ◽  
Mehdi Amirkhani

Green buildings refer to buildings that decrease adverse environmental effects and maintain natural resources. They can diminish energy consumption, greenhouse gas emissions, the usage of non-renewable materials, water consumption, and waste generation while improving occupants’ health and well-being. As such, several rating tools and benchmarks have been developed worldwide to assess green building performance (GBP), including the Building Research Establishment Environmental Assessment Method (BREEAM) in the United Kingdom, German Sustainable Building Council (DGNB), Leadership in Energy and Environmental Design (LEED) in the United States and Canada, Comprehensive Assessment System for Built Environment Efficiency (CASBEE) in Japan, Green Star in Australia, Green Mark in Singapore, and Green Building Index in Malaysia. Energy management (EM) during building operation could also improve GBP. One of the best approaches to evaluating the impact of EM on GBP is by using structural equation modelling (SEM). SEM is a commanding statistical method to model testing. One of the most used SEM variance-based approaches is partial least squares (PLS), which can be implemented in the SmartPLS application. PLS-SEM uses path coefficients to determine the strength and significance of the hypothesised relationships between the latent constructs.


2011 ◽  
Vol 347-353 ◽  
pp. 4097-4103
Author(s):  
You Yin Jing ◽  
Jian Liang Zhang ◽  
He Bai

This paper proposes some suggestions to perfect our current green building assessment system. Green building and ecological building is undoubtedly the trend of construction industry. Green building assessment systems play a directional function for the design, the construction and the use of green architecture. This paper introduces the development of green building assessment system at China and other country firstly. Through the comparison and analysis for some kinds of green building assessment systems, found that that the applicability for buildings and areas and the fairness for ecological environment and surrounding people of current assessment system should be optimized. Finally,proposed that several aspects must be considered, and thus establish the new system-A Green Building Assessment Method Which Based on the Environmental Disturbance and Ecological Compensation.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gamze Orhan

Purpose Deregulation of domestic markets and the liberalization of international markets have dramatically changed air transportation. One of the important results of this change is the environmental effects of air transportation. This study aims to examine the implications of air transportation on environmental sustainability in the context of airline business strategies in liberalized and globalized air transport industry. Design/methodology/approach The paper discusses the relationship between liberalization, airline strategies and environmental sustainability of air transportation using the related literature. Then, to show some environmental impacts on the axis of the relationship discussed, emission rates for the aircraft landing and take-off phase were calculated on a global basis based on the aircraft traffic. Findings The discussion in the paper shows that the liberalization policies and the strategies of airlines supported by these policies, in essence, contradict the environmental sustainability of air transport. Considering the flight share projections of EUROCONTROL for different aircraft types on a global basis and the World Bank’s global flight traffic forecast for the years 2016 and 2025, it has been demonstrated that the number of aircraft departures will increase by 30%, whilst the number of aircraft emissions will increase by 41.5%. Practical implications Airlines are one of the main actors that will play a role in reducing the environmental impacts of air transportation. Therefore, this study is important in giving an idea to both policymakers and airline managers on how airline companies’ strategies should be shaped to realize both corporate sustainability and environmentally sustainable air transportation. Originality/value There are many studies in the literature regarding the environmental effects of air transport. However, there are not many studies linking environmental impacts with airline strategies that directly affect air transport demand. This study is different in that it gives environmental sustainability by associating it with its root causes.


2019 ◽  
Vol 19 (3) ◽  
pp. 321-342 ◽  
Author(s):  
Timothy Oluwatosin Olawumi ◽  
Daniel W.M. Chan

Purpose The increasing urbanization of the built environment has bolstered the need to promote green Building Information Modeling (BIM) initiative in new construction projects and the rehabilitation of old premises. This study aims to explore and examine the key benefits of the implementation of BIM and sustainability practices in the built environment. Design/methodology/approach The study gathered the worldwide perceptions of 220 survey participants from 21 countries which were analyzed using descriptive and inferential analytical methods. The identified individual benefits of green BIM were further categorized into their underlying clusters using factor analysis. Findings The key benefits are related to enhancing project efficiency and productivity, ensuring real-time sustainable design and multi-design alternatives, facilitating the selection of sustainable materials and components, together with reducing material wastage and project’s environmental impact, among others. The study analyzed and compared the perceptions of the diverse groups of the respondents as well. Practical implications Effective blueprints and insightful recommendations for enhancing the various stakeholders’ capacities to implement green BIM in their construction projects were put forward to achieve the aim of sustainable smart urbanization. Originality/value The study identified salient benefits of the adoption of BIM and sustainability practices. The proper integration of these concepts and the execution of the recommended useful strategies by construction stakeholders, policymakers and local authorities will enable the built environment to reap the gains of its implementation.


2020 ◽  
Vol 18 (1) ◽  
pp. 36-52 ◽  
Author(s):  
Mahmoud Mawed ◽  
Vinay Tilani ◽  
Karima Hamani

Purpose Green retrofitting is acknowledged as an essential strategy toward achieving long-term sustainability in the built environment. To implement this strategy successfully, the role of facility managers cannot be ignored. The purpose of this paper is to investigate present practices that are used in managing the existing facilities, to highlight the elements that govern the process of green retrofitting, and discuss the efforts and contribution of facility managers in enhancing the environmental performance of the existing facilities stock in the United Arab Emirates (UAE). Design/methodology/approach This study suggests that an adequate level of awareness of the benefits of green retrofit amongst owners and decision-makers is mostly dependent on facilities management (FM) professionals, who must establish effective communication channel with senior management. FM professionals in the UAE are well equipped and competent in greening existing buildings and can simultaneously lead a building to the path of achieving green building certification. Findings To examine the role of FM in a green retrofit and its current status in the UAE built environment, a two-step qualitative method was adopted. The study started by conducting semi-structured interviews with FM professionals and then assessing the insights obtained from the interviews against an actual case study of a LEED Existing Building certified facility. Research limitations/implications Interviews were limited to FM professionals in the private sector and the results from one case study should be considered cautiously. Originality/value This paper emphasizes the primordial role of FM professionals in promoting green retrofit in the UAE.


2018 ◽  
Vol 8 (1) ◽  
pp. 78-90
Author(s):  
Subhadarsini Parida ◽  
Kerry Brown

Purpose The purpose of this paper is to examine the extent to which a systematic review approach is transferable from medicine to multi-disciplinary studies in the built environment research. Design/methodology/approach Primarily a review paper, it focuses on specific steps in the systematic review to clarify and elaborate the elements for adapting an evidence base in the built environment studies particular to the impact of green building on employees’ health, well-being and productivity. Findings While research represents a potentially powerful means of reducing the gap between research and practice by applying tried and tested methods, the methodological rigour is debatable when a traditional systematic review approach is applied in the built environment studies involving multi-disciplinary research. Research limitations/implications The foundational contribution of this paper lies in providing methodological guidance and an alternative framework to advance the longstanding efforts in the built environment to bridge the practitioner and academic divide. Originality/value A systematic review approach in the built environment is rare. The method is unique in multi-disciplinary studies especially in green building studies. This paper adopts the systematic review protocols in this cross-disciplinary study involving health, management and built environment expertise.


Facilities ◽  
2016 ◽  
Vol 34 (11/12) ◽  
pp. 630-648 ◽  
Author(s):  
Sui Pheng Low ◽  
Shang Gao ◽  
Ling Ling Grace Teo

Purpose The building sector is one of the main contributors to carbon dioxide emissions in Singapore. Over 90 per cent of life-cycle carbon emissions are due to the operations phase of buildings, and 90 to 98 per cent of the building cost is associated with operation, maintenance and personnel costs. Hence, occupants have a major role in achieving environmental sustainability objectives. This study aims to understand the awareness level of potential homeowners and real estate agents concerning environmental sustainability issues in the built environment, to identify the types of green features required by potential homeowners and to understand real estate agents’ perceptions of the types of green features required by the homeowners in a green condominium. Design/methodology/approach The features of the Green Mark (GM)-awarded buildings, as well as the benefits derived by homeowners were identified from the literature. A survey of a group of potential homeowners and real estate agents was carried out in Singapore to analyse the gap, if any, between the potential homeowners’ needs and expectations and real estate agents’ perceptions of these needs and expectations with respect to the green features in the homes. Findings The results indicate that potential homeowners are more aware of environmental sustainability issues in the built environment than are real estate agents; potential homeowners seem to be more supportive of environmentally sustainable development than the real estate agents are aware of, despite the fact that the price of the apartment remains an important deciding factor; and potential homeowners are more concerned about the ease of maintaining green homes and paying greater attention to green features in the areas most heavily promoted by the government. However, green features do not constitute the main considerations of potential homeowners when making the decision to buy a green home. Research limitations/implications To close the gaps identified in the analysis, recommendations are suggested, including having public education and awareness campaigns to emphasize the long-term energy savings of green homes, conducting GM courses for real estate agents and involving real estate agents in the developers’ project consultancy team. Originality/value As there has been no prior research in this area, this study serves to provide fresh perspectives on how developers can better select the types of green features to be included in the green homes, so as to meet the potential homeowners’ needs and expectations and, at the same time, balance mandatory GM requirements with such demands. Choosing the right type of green features to incorporate in a residential development for homeowners to utilize increases the owners’ satisfaction level and allows them to reap the intended benefits of green features.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amarachukwu Nnadozie Nwadike ◽  
Suzanne Wilkinson

PurposeThe New Zealand building code has played a vital role in reducing the impact of disasters in the built environment. Following the nature of earthquake occurrences, the associated impacts such as building collapse and the increase in technological innovation in the building sector, the New Zealand building code has been frequently amended. The building code amendment ensures that buildings and other related infrastructures can withstand the impact of ground shaking without substantial damages to buildings. The purpose of this paper is to identify and explore the benefits of building code amendments in New Zealand.Design/methodology/approachDocument analysis and closed-ended questionnaire were adopted as data collection instruments for this study. The relevant stakeholders comprise structural engineer, geotechnical engineer, architect, building services consulting engineer, licensed building practitioner, project manager, building contractor, local authority, academic/researcher and quantity surveyor.FindingsA significant proportion of the survey participants that agreed to the importance of building code amendments in New Zealand justify the benefits of the amendments. The study serves as a useful guide to policy regulators and researchers who are exploring other aspects of regular building code amendments in New Zealand. The findings from this study suggest that amending the New Zealand building code needs a proactive approach to promote local technology, enhance low-cost construction materials, training of code users and reducing bureaucracy in design approval and construction inspection. The study concludes that improving on the 28 factors identified in this study would contribute intensively to disaster risk reduction in the built environment and an increase in compliance level in New Zealand.Originality/valueThis paper originality comes from its practical approach towards identifying the benefits of building code amendments


Author(s):  
Bing Wei ◽  
Bin Zhang ◽  
Wen Luo

Presently the sustainable development stratagem has made the green buildings to be a trend of building industry in China, and the assessment to the green buildings is becoming more and more important in developing the green buildings. In this paper the meaning of the green building assessment is explained, several main domestic and foreign green building assessment systems are analyzed and compared, and the common ground and limitations of these assessment methods are presented. Then a novel assessment index system which is more comprehensive, scientific and suitable for green buildings in China is developed by using the life cycle assessment method. This system contains six categories including land saving and outdoor environment, energy saving and utilization, material saving and utilization, water saving and utilization, indoor environment quality and economy. According to the decision-making stage, design stage, construction stage, operation and maintenance stage, each category is divided into more concrete indexes. At last the established assessment system is used to evaluate a typical building in Xi’an, China. The final novel assessment index system is of theoretical and practical significance for the assessment and development of green buildings in China.


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