11th World Construction Symposium - 2023最新文献_第3页

Economic models of climate change: systematic review of benefits, limitations, and future directions 气候变化的经济模型:效益、限制和未来方向的系统回顾

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.39

B.K.M. Nadeetharu, U. Kulatunga, Mjb Ingirige

{"title":"Economic models of climate change: systematic review of benefits, limitations, and future directions","authors":"B.K.M. Nadeetharu, U. Kulatunga, Mjb Ingirige","doi":"10.31705/wcs.2023.39","DOIUrl":"https://doi.org/10.31705/wcs.2023.39","url":null,"abstract":"Climate change substantially impacts the community's livelihood, affecting their socioeconomic status. Considering the severity of impacts in the developing country context, economic models have been identified as a feasible application to determine the socioeconomic impacts of climate change. Consequently, this study provides benefits, limitations and future directions of economic models, which can be used as guidance to apply the economic models to determine the community impacts of climate change and thereby contribute to sustainable development. A systematic literature review has been adapted as a methodology to identify 18 benefits and 14 limitations of economic models of climate change. In addition, 18 future directions for applying and improving economic models of climate change have been derived. Benefits are mainly associated with the financial and decision-making aspects, while the limitations highly encounter due to possibility of producing misleading results and uncertainty. Future directions of economic modelling of climate change mainly concentrate on modelling for uncertainty and integrating multiple climatic conditions, livelihood status, models, technologies, and stakeholders in economic modelling. The findings are helpful for policymakers to successfully apply the economic models to address the climate change issues in the community. Further, the community will ultimately benefit from the set of policies and management strategies that occurred with the guidance of these findings. Further research can be conducted on addressing the identified limitations of the economic models and developing them.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"31 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114099889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Barriers to emerging smart solutions adoption for energy efficiency in the construction industry 建筑行业采用节能智能解决方案的障碍

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.23

O. Oguntona, F. Ngobeni, O. Akinradewo, B. Ogunbayo, C. Aigbavboa

{"title":"Barriers to emerging smart solutions adoption for energy efficiency in the construction industry","authors":"O. Oguntona, F. Ngobeni, O. Akinradewo, B. Ogunbayo, C. Aigbavboa","doi":"10.31705/wcs.2023.23","DOIUrl":"https://doi.org/10.31705/wcs.2023.23","url":null,"abstract":"Globally, the construction industry (CI) has been blamed to be directly responsible for climate change and its consequential adverse impacts. As a sector known to be energy-intensive and energy-dependent, it is logically right for energy efficiency reforms and strategies to begin in the CI. While energy challenges are largely constituting a hindrance to the accelerated growth and socio-economic development of Africa, the continent continually commits to unsustainable means in meeting its energy demands. Therefore, the adoption of energy efficiency solutions is pivotal for the continent to meet its sustainability agenda. Hence, this study is aimed at identifying the various barriers hindering the adoption of Emerging Smart Solutions (ESS) for energy efficiency in the South African construction industry (SACI). The quantitative research method was utilised in this research study. A questionnaire survey was administered to registered and active construction professionals in the SACI for data collection. Both descriptive and exploratory factor analysis were used to analyse the retrieved data. Findings from the study revealed 17 barriers with high initial cost, lack of financial incentives, and theft and security concerns as the top three barriers hindering the adoption of ESS for energy efficiency in the SACI. The study concluded that a multi-stakeholder approach is embraced to mitigate these barriers so that the potential benefits of ESS can be maximised in the sector. It is recommended that government intervention and support be increased to pave the way for the proliferation of ESS and other energy-efficient strategies.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"45 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116388812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategies to create an enabling environment for public private partnership (PPP) projects in Sri Lanka 为斯里兰卡的公私合作项目创造有利环境的战略

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.78

T. Kodippili, G. Karunasena, B.H. Mallawarachchi, S. Jayakodi

{"title":"Strategies to create an enabling environment for public private partnership (PPP) projects in Sri Lanka","authors":"T. Kodippili, G. Karunasena, B.H. Mallawarachchi, S. Jayakodi","doi":"10.31705/wcs.2023.78","DOIUrl":"https://doi.org/10.31705/wcs.2023.78","url":null,"abstract":"Public Private Partnership (PPP) projects have become a proven method of infrastructure procurement to achieve higher rate of economic growth in the most developing countries. However, researches carried out in similar fields have identified that lack of enabling environments hinder implementation of PPPs. Thus, the purpose of this paper is to propose strategies to create enabling environments for PPP projects in Sri Lanka. Nineteen semi-structured interviews were conducted to ascertain viewpoints of experienced professionals in fields of strategic planning and PPPs. The collected data was analysed using content analysis techniques. It was revealed that creation of a national PPP policy, establishment of a national PPP unit, creation of a private sector infrastructure development fund and making necessary legislative amendments as key strategies to create an enabling environment for PPPs in any developing nation. This research gives a significant basis of long term and short-term strategies that have to be made in five fronts of policy, legal, institutional, financial and communication frameworks for enabling PPPs. The proposed strategic outline is probable to implement, however, it requires a detailed study and further validation prior implementation.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"23 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116518854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Minimising construction and demolition waste using circular economy concept to achieve sustainable urban development 运用循环经济理念，尽量减少建筑及拆卸废物，达致城市可持续发展

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.64

M. Gowsiga, M. Thayaparan

{"title":"Minimising construction and demolition waste using circular economy concept to achieve sustainable urban development","authors":"M. Gowsiga, M. Thayaparan","doi":"10.31705/wcs.2023.64","DOIUrl":"https://doi.org/10.31705/wcs.2023.64","url":null,"abstract":"Urban development significantly increased construction activities, which led to the generation of Construction and Demolition Waste (CDW) and inefficient resource exploitation. Most of these CDWs end up in landfills, and most countries give little attention to sustainable practices in this area. \"Circular Economy\" (CE) is one of the best ways to reduce CDW and the use of resources. Even though CE is not a new idea, it is not fully used to reduce CDW because the construction industry is still based on a linear economy and building materials are designed to be used linearly. Hence, this paper aims to investigate how CE can contribute to minimising the CDW to achieve sustainable urban development. This study adopts a qualitative approach to examine the strategies used to minimise the CDW in Sri Lanka. Multiple holistic case studies with three large-scale construction projects in the Colombo district were selected, and semi-structured interviews were used to get first-hand information. Manual content analysis was used for data analysis. Findings noted that disposal is unavoidable for all 14 CDW types, and e-waste was counted as the 15th type. The 3Rs (reduce, reuse, and recycle) of CE are quite popular among the projects, and the other 8Rs of Cimen (2021) of the CE concept are challenging to put into practice. To increase the knowledge and application of CE principles among built environment experts, this research provides recommendations based on a desk study by gathering case studies from secondary sources where CE principles are extensively applied for CDW minimisation","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127238078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of embodied carbon estimating methods 含碳估算方法的比较

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.30

N. Rodrigo, S. Perera, S. Senaratne, X. Jin

{"title":"Comparison of embodied carbon estimating methods","authors":"N. Rodrigo, S. Perera, S. Senaratne, X. Jin","doi":"10.31705/wcs.2023.30","DOIUrl":"https://doi.org/10.31705/wcs.2023.30","url":null,"abstract":"The Australian building sector contributes up to 36% of carbon emissions emphasising the importance of carbon management. Embodied Carbon (EC) and Operational Carbon (OC) are classified as two main types of carbon emissions in buildings. Zero carbon projects have gained popularity nowadays where OC is reduced to zero, which enables EC to increase. The focus should have been to reduce overall emissions. The current EC estimating databases and tools could result in inaccurate EC estimates due to various reasons, such as different system boundaries, different geographical locations, lack of standardisation and so forth. To address prevailing shortfalls, a new methodology, Supply Chain based Embodied carbon Estimating Method (SCEEM), has been introduced. This study aims at comparing EC estimates prepared using SCEEM against existing carbon estimating databases/tools. A case study was selected to collect data and estimate EC using SCEEM as well as selected database, Blackbook, and tool, eToolLCD. The results indicated that the EC estimates prepared for the case study was quite high in the selected database/tool compared to the EC values of SCEEM. The percentage difference between SCEEM vs Blackbook and SCEEM vs eToolLCD, was more than 50% for most of the items within the collected data set. The first principles-based methodology considered in SCEEM ensures the accuracy and consistency of estimates prepared using SCEEM.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134301801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is integrated project delivery sufficient to reduce adversarialism in the UK construction industry? 综合项目交付是否足以减少英国建筑行业的对抗性?

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.52

A. Aderibigbe, N. Umeokafor, T. Umar

{"title":"Is integrated project delivery sufficient to reduce adversarialism in the UK construction industry?","authors":"A. Aderibigbe, N. Umeokafor, T. Umar","doi":"10.31705/wcs.2023.52","DOIUrl":"https://doi.org/10.31705/wcs.2023.52","url":null,"abstract":"Adversarialism is an endemic feature of the construction industry, resulting in devasting effects on productivity, cost, performance and client satisfaction within the industry. This can be explained by various factors of which adversarial ‘traditional’ construction contracts is one. To reduce adversarialism and to establish sustainable construction methods and practices in the United Kingdom (UK), the Integrated Project Delivery (IPD) method has been advanced as a solution. The critical review and analysis of relevant literature as well as prominent studies show that; although the use of IPD resulted in a better, healthier outcome in comparison to normal/traditional adversarial system, IPD still suffered from significant limitations, challenges and persistent barriers. These barriers thus indicate and necessitate the need for further research in determining a sufficient way in reducing adversarialism within the UK construction industry. One of the recommended empirical investigations include whether legislation has an influence on good faith towards reducing adversarialism. Another empirical investigation recommended is the premise that the barriers and challenges IPD present may likely be overcome by the implementation of statutory-backed good faith legislation, thus improving collaborative working. This paper will contribute to the wider knowledge of IPD in the industry and to improving the performance of the UK architecture, engineering and construction industry through collaborative working.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133062907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Encumbrances of the competitiveness of south African construction organisations in the business environment of other African countries 南部非洲建筑组织在其他非洲国家商业环境中的竞争力障碍

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.91

M. Ikuabe, C. Aigbavboa, S. Adekunle

{"title":"Encumbrances of the competitiveness of south African construction organisations in the business environment of other African countries","authors":"M. Ikuabe, C. Aigbavboa, S. Adekunle","doi":"10.31705/wcs.2023.91","DOIUrl":"https://doi.org/10.31705/wcs.2023.91","url":null,"abstract":"The study aims to assess the challenges posed to the competitiveness of South African construction contractors in other African countries. This was instituted to formulate a pathway for the penetration of South African contractors into the business environment of other African countries. The study employed a quantitative method underpinned by a post-positivism philosophical approach using a questionnaire as the research instrument. The target respondent of the study was construction professionals, while the study area was Gauteng province of South Africa. The data analysis methods were mean item score, Kruskal-Wallis h-test, and Student Newman Kaul post hoc test. Findings from the study showed that the most significant challenges faced by South African construction organisations in exploring business opportunities in other African countries are collusive acts, high cost of financing, lack of technical skills, and difficulties in obtaining loans. Also, the difference in viewpoints given by the sampled professionals is outlined in the study’s findings. Based on the results obtained from the analysis, the study made recommendations that would aid the competitive capabilities of South African construction organisations in the business landscape of other African countries.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139356856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Big data analytics in the Sri Lankan construction industry: an assessment of the challenges and strategies 斯里兰卡建筑业的大数据分析:挑战与策略评估

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.24

A. Atapattu, R. M. Wattuhewa, K. Waidyasekara, R. Dilakshan

{"title":"Big data analytics in the Sri Lankan construction industry: an assessment of the challenges and strategies","authors":"A. Atapattu, R. M. Wattuhewa, K. Waidyasekara, R. Dilakshan","doi":"10.31705/wcs.2023.24","DOIUrl":"https://doi.org/10.31705/wcs.2023.24","url":null,"abstract":"The increasing complexity of construction projects and the expansion of the construction sector has complicated the data management process by highlighting the need for proper data management tools in arranging and organising construction data. Specifically, countries with developing economies such as Sri Lanka require more advanced data management tools, since the construction sector is the backbone of their economies. In this context, this study aims to identify the challenges to the implementation of Big Data Analytics (BDA) in the Sri Lankan construction sector and the potential strategies which can be adopted in overcoming the challenges for the implementation. Accordingly, a qualitative approach was followed in achieving the aim of the study. A comprehensive literature review was conducted to identify the existing body of knowledge related to the study area. Twelve semi-structured interviews were conducted for primary data collection with experts in the fields of construction and data analytics and the non-probability purposive sampling technique was used to select the experts for the data collection. Data were analysed using the content analysis method. Findings revealed that the requirement of large capital expenditure, resistance from industry professionals and lack of industry awareness are the major barriers to adopting BDA in the Sri Lankan construction sector. Eventually, it was revealed that conducting awareness sessions and educating the industry stakeholders will assist the strategic implementation of BDA in the Sri Lankan construction sector.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":" 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132040014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transaction costs in Australian construction projects 澳大利亚建筑项目的交易成本

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.87

S. Fernando, A. Gurmu

{"title":"Transaction costs in Australian construction projects","authors":"S. Fernando, A. Gurmu","doi":"10.31705/wcs.2023.87","DOIUrl":"https://doi.org/10.31705/wcs.2023.87","url":null,"abstract":"Construction projects involve transaction costs (TCs) both during the pre and post-contract phases. If these costs are not managed appropriately, they can lead to project cost overruns. The purpose of this study is to explore the transaction costs, their determinants and mitigation strategies in the Australian construction industry. Qualitative data were collected by conducting semi-structured interviews with professionals who have been working as contract administrators, project managers, quantity surveyors and construction managers. The data were then analysed using thematic and content analysis techniques by using NVivo software. The research identified context-specific transaction costs such as statutory charges, opportunity costs, cost of compliance, and lost-time costs. Moreover, the findings indicate that factors affecting transaction costs are interrelated; hence, each factor affects more than one type of transaction cost. It was also found that rules and regulations imposed by regulatory bodies, the type of bidding procedure used, and the use of non-integrated procurement methods increase transaction costs. Further, mitigation strategies for minimising TCs such as recruitment of qualified experts, building trust and relationships, and the use of digital technologies such as BIM, drones and point cloud were identified.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124177978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of experiential knowledge and personal constructs into construction claims management 经验知识和个人构念在工程索赔管理中的应用

11th World Construction Symposium - 2023 Pub Date : 2023-07-21 DOI: 10.31705/wcs.2023.19

R.A.D. Piyumra, P. Disaratna

{"title":"Application of experiential knowledge and personal constructs into construction claims management","authors":"R.A.D. Piyumra, P. Disaratna","doi":"10.31705/wcs.2023.19","DOIUrl":"https://doi.org/10.31705/wcs.2023.19","url":null,"abstract":"Construction industry is known as a knowledge-intensive, where much of construction knowledge is tacit in nature based on experience. Nevertheless, sharing and applying of Experiential Knowledge (EK) and Personal Constructs (PC) to managing construction projects is lacking. Construction projects will inevitably involve claims, where due to presence of knowledge deficits of professionals in the industry, Claims Management (CM) has become a challenging task for contractors. Thus, the research aimed to explore the applicability of integrated EK and PC approach within the organisational culture towards successful CM practice. A qualitative approach inclusive semi-structured detailed expert interviews was attained in pursuing the research aim as the data collection tool. Data collection was limited to Grade C1 and above contractors in Sri Lanka. Literature findings disclosed the significance of applying previous project experience, role of organisational culture and role of PC in the construction industry. Expert interviewees established that CM is a knowledge-intensive core practice in the construction sector. Accordingly, the research study developed a framework indicating the relationships and applicability of Experiential Learning (EL), PC, Knowledge Sharing (KS) and Shared Learning concepts along with reusable project knowledge and EK towards each phase of CM process within the knowledge centred organisational culture.","PeriodicalId":221447,"journal":{"name":"11th World Construction Symposium - 2023","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128625400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0