Built Environment Project and Asset Management

Thayaparan, Menaha; Ross, Andrew

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-10-2021-193

Ekanayake, E.M.A.C.; Shen, Geoffrey Qiping; Kumaraswamy, Mohan

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-03-2020-0040

This paper aims to review the state-of-the-art of literature of supply chain resilience (SCR) and to map the SCR domain, so as to provide a launchpad for further knowledge development and dissemination.Design/methodology/approachCiteSpace as a bibliometric analysis software was used to systematically, comprehensively and accurately review the SCR-related literature and to then develop an SCR research map.FindingsThe results revealed the existing SCR publication base, domains, highly contributed publications, research hotspots, key milestones of SCR research development and a dynamic platform to integrate future research and development of SCR.Originality/valueThe scientific contribution to SCR knowledge is an accurate and quantitative SCR research map, including the related SCR publication base, domains, pillars, hotspots, evolution and future trends. The methodology and the findings can be generalised to many other fields. Besides, the proposed SCR research map could be frequently updated by injecting future findings from similar studies to fill any residual or newly emerging research gaps. Moreover, the results could inspire further new knowledge creation in the SCR domain, identify future research demands in this field and ultimately boost the performance of global SCs by triggering smart and sustainable practices.

Ranadewa, K.A.T.O.; , Y.G. Sandanayake; Siriwardena, Mohan

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-03-2020-0045

This paper investigates the lean enabling human capacities and develops a framework integrating individual, organisational and environmental level strategies to build human capacities for successful lean implementation of small and medium contractors (SMCs) in Sri Lanka.Design/methodology/approachAn interpretivism stance is adopted, and a qualitative research approach is used. The data collection technique adopted is semi-structured interviews. In total, 24 experts with experience in lean implementation of SMCs were interviewed, and data were analysed through code based content analysis using NVivo10.FindingsTeam working skills, critical thinking, leadership, communication skills, work ethics, knowledge and positive attitudes were identified as lean enabling human capacities for SMCs. The framework developed in this study provides individual, organisational and environmental level strategies that can be used to build human capacities necessary for enabling lean in construction SMCs.Practical implicationsThe study will be beneficial to construction SMCs, academics, researchers and government institutions in developing countries, which share socio-economic, demographic or cultural traits similar to Sri Lanka.Originality/valueA novel lean enabling human capacity building framework is developed with the strategies required for building those capacities in order to accelerate the lean implementation in construction SMCs. This contributes to the body of knowledge as it uncovers individual, organisational and environmental level strategies for enabling lean through human capacity building in Sri Lankan SMCs.

Montaser Koohsari, Ayda; Heidari, Shahin

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-02-2020-0034

The purpose of this paper is to determine the approximate window-to-wall ratio (WWR), window width-to-height ratio (WHR) and sill level for a room in Rasht–Gilan province and to present an optimal window in each of the WWR ranges providing the minimum energy consumption by integrating artificial lighting and thermal analyses, whilst maintaining internal comfort conditions using dynamic evaluation.Design/methodology/approachThe process of modelling has four main steps: 1 – defining the building's features and requirements, 2 – validating input weather file data by on-site measurement, 3 – determining input parameters for the lighting and thermal analysis and 4 – clarifying variable parameters and fitness function for the optimization algorithm. Also, the survey study is performed in a daylit office room, in which 30 employees are employed to answer the questions in three different times of a day. In this process, the impact of daylight on their visual comfort is surveyed in 1,350 different illuminance levels which are manually recorded.FindingsThe range of useful daylight illuminance (UDI) values is determined as 200–1,000 lux. The optimum range of WWRs in the case study is 15%–25%. Also, due to the appropriate window height, electric lighting could be decreased by 40%.Originality/valueThermal and lighting performance in buildings is the relation of facade characteristics to environmental sustainability. Recent studies focussed on optimizing WWR and window characteristics considering thermal comfort and energy analyses. However, architects need freedom for designing façade and making decisions in their first sketches. Thus a guideline for optimum window conditions in each WWR is required. Also, considering occupants' behaviour in practical buildings, the visual comfort investigation is a gap in WWR optimization.

Faremi, Olajide Julius; Ajayi, Oluranti Olupolola; Zakariyyah, Kudirat Ibilola; Adenuga, Olumide Afolarin

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-03-2020-0055

The study investigates the extent to which defects in coastline buildings are influenced by the climatic conditions within the coastal zones.Design/methodology/approachThe study conducted both desk study and field survey. The primary data for the study were collected through a cross-sectional survey of facilities and maintenance managers of randomly selected coastline buildings. Of the 120 self-administered structured questionnaires, 102 were successfully retrieved representing an 85% response rate. Data collected were analysed using charts, relative prevalence index and Spearman's rho correlation visualization technique.FindingsSaltwater intrusion, ocean overflow, extreme rainfall, debris flow, floods and droughts are the prevalent climatic conditions along the coastline. Steel corrosion, foundation settlement, spalling of concrete and fading of finishes are prevalent defects in coastline buildings. The result shows a positive significant correlation between climatic conditions and defects in coastline buildings.Research limitations/implicationsThe study compliments literature on buildings resilience and maintenance management, and also provides a basis for streamlining future research on coastline buildings.Practical implicationsThe results provide information on climatic conditions and prevalent defects that should be considered during the design and construction of coastline buildings. The information provided could assist construction stakeholders in improving the resilience of coastline buildings.Originality/valueThe study established that coastline buildings are vulnerable to a rapid rate of defect and deterioration which threatens the sustainability of coastline cities. It suggests measures that could improve the resilience of the elements and components of coastline buildings and consequently enhance the safety of life and property, and improve the physical and economic performance of coastline buildings.

Perera, G.P.P.S.; Tennakoon, T.M.M.P.; Kulatunga, Udayangani; Jayasena, Himal Suranga; Wijewickrama, M.K.C.S.

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-03-2020-0056

The purpose of this paper is to select a suitable procurement method for steel building construction in Sri Lanka following a systematic method which weigh, both procurement selection factors and existing procurement systems.Design/methodology/approachAn abductive research stance is followed in this empirical study. Procurement selection factors were selected through a critical literature review which was followed by a quantitative questionnaire survey. The collected data were analysed using descriptive statistical analysis and relative important index.FindingsThe critical literature review outlined 46 procurement selection factors, out of which 26 factors were very important in steel building procurement selection. Short construction period and higher constructability of design are ranked at the top with the highest priority rating factors. Management-oriented procurement system was selected as the most appropriate procurement system for steel building constructions within the Sri Lankan context.Research limitations/implicationsThe study is limited to widely use three procurement systems in Sri Lankan construction industry. Yet, the process followed in selecting the most appropriate procurement system could be applied for other contexts. The implications of the study are mainly identifying management-oriented procurement as the most suitable procurement method for steel building construction in Sri Lanka.Practical implicationsThe systematic procedure of procurement method selection for steel building construction may use in the Sri Lankan construction industry to limit the resource loss due to wrong selection of procurement.Originality/valueA study which critically and comprehensively presenting a procurement selection process for steel building construction is not recorded in Sri Lanka prior to this study.

Tariq, Hisham; Pathirage, Chaminda; Fernando, Terrence

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-03-2020-0053

Decision-makers, practitioners and community members have a need to assess the disaster resilience of their communities and to understand their own capacities in disaster situations. There is a lack of consensus among researchers as to what resilience means and how it can be measured. This paper proposes a novel technique to achieve consensus among stakeholders on definitions, objectives and indicators for measuring a key dimension of community disaster resilience (CDR), physical infrastructure (PI).Design/methodology/approachThis study uses a five-step approach utilizing Q-methods to contextualize a resilience index for PI. Interviews, focus groups and Q-sorting workshops were conducted to develop a tool that ranked measures according to stakeholder preference. A total of 84 participants took part in the workshops across four countries (United Kingdom, Malaysia, Pakistan and Sri Lanka).FindingsThe initial set of 317 measures was reduced to 128 and divided into the three community capacities of anticipatory, absorptive and restorative. The physical infrastructure capacity assessment tool (PI-CAT) was then finalized to have 38 indicators that were also ranked in order of importance by the participants.Practical implicationsThe PI-CAT can be useful for local governments and communities to measure their own resilience. The tool allows stakeholders to be confident that the metrics being used are ones that are relevant, important and meet their requirements.Originality/valueThe Q-method approach helps stakeholders to develop and use a community capacity assessment tool that is appropriate for their context. The PI-CAT can be used to identify effective investments that will enhance CDR.

Munaro, Mayara Regina; Tavares, Sergio Fernando

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-02-2020-0027

Reuse and recycling building materials depend on an efficient set of information and tracking, which can be obtained by the materials passport (MP) tool. Although MP introduces principles of circular economy (CE) and brings environmental, social and economic benefits, it is little-explored in the construction sector. The purpose of this study is to explore the adoption of the MP in the sector to raise awareness about this tool. This analysis leads to the conception of a model and identifies the main challenges and opportunities to increase MP implementation in the sector.Design/methodology/approachThrough a systematic literature review, based on the descriptive and thematic analysis, articles were selected, and analyzed to (1) review the MP state-of-the-art in the construction sector; (2) propose a materials passport model and (3) list the main challenges and opportunities to MP adoption.FindingsThe studies about MP were concentrated on strategies to implement general concepts and business opportunities. The MP model was proposed to overcome the lack of studies and understanding showed in the review. The model aimed to improve the recovery and reuse of materials across a building's life cycle. Challenges and opportunities were raised to direct decision-makers and support the development of this tool. A systematic regulation in the construction value chain and policy systems is crucial for creating digital platforms for data management of buildings' material.Originality/valueThis study developed an MP model to enable the management of building materials at different stages of the building's life cycle and contributes to future developments of the studies on this knowledge domain.

Wijewansha, Amodith Supunmal; Tennakoon, G.A.; Waidyasekara, K.G.A.S.; Ekanayake, B.J.

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-04-2020-0072

Despite the positive impacts of the construction sector on enhancing economic growth and ensuring societal well-being, its negative impacts on the environment from unsustainable resource consumption levels, emission of greenhouse gases (GHGs) and waste generation is monumental. Circular economy (CE) concept is identified globally as an avenue to address problems regarding adverse impacts of construction on the environment. This paper presents the principles of CE as an avenue for enhancing environmental sustainability during the pre-construction stage within Sri Lankan construction projects.Design/methodology/approachThis research was approached through a qualitative research method. Data were collected through semi-structured interviews with subject matter experts. The number of experts were limited due to lack of experts with knowledge on the subject area in Sri Lanka. Data were analysed using content analysis.FindingsFindings revealed a range of activities under each R principle of CE, that is, reduce, reuse, recycle, redesign, reclassification and renewability that could be implemented during the pre-construction stage, thereby providing a guide for construction professionals in implementing CE at the pre-construction stage. The need to expand knowledge on CE concepts within the Sri Lankan construction sector was recognized.Originality/valueThis study provides a qualitative in-depth perspective on how 6R principles of CE could be integrated to a construction project during the pre-construction stage. By adopting the proposed activities under CE principles, construction professionals can enhance the environmental sustainability of construction projects.

Agyekum, Kofi; Hammond, Samuel Fiifi; Salgin, Burcu

2021 Built Environment Project and Asset Management

doi: 10.1108/bepam-01-2020-0005

This study examines occupants' satisfaction with the indoor environmental quality (IEQ) of a green-certified building [The Green Star South Africa (SA) Building] in Ghana.Design/methodology/approachViews of 300 respondents are solicited on 15 IEQ (obtained through a critical review of the literature and complemented with a pilot interview on the subject) parameters. Data obtained are analysed using both descriptive and inferential statistics.FindingsFindings suggest that occupants are generally satisfied with five critical aspects of IEQ. The results also indicate that the occupants perceive five key IEQ parameters to have high levels of importance. Further inferential analysis of the parameters revealed that two core IEQs require the highest levels of improvement actions.Research limitations/implicationsThe study was conducted in Ghana and analysed occupants' perceptions of working within one green-certified building. Again, the collection of the occupants' responses was not linked with the direct measurement of physical characteristics of the IEQ parameters of the building. Hence, the findings cannot be generalised.Practical implicationsPractically, the study contributes to providing all stakeholders involved in the Green Star SA Ghana certification system with the relevant feedback for their decision-making on current and future projects to be certified under this certification system.Originality/valueThis study provides valuable information on the performance of IEQ parameters of the building and points out potential IEQ areas that need improvement efforts, especially concerning current and future facilities certified under this certification system.