Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'最新文献
Lean Design Management (LDM) is a concept, which ensures efficiency and effectiveness of the design stage of a construction project to reduce uncertainty and improve the quality of the final product. Stakeholder Management (SM) is an effective approach for coordinating and managing stakeholders who involve with a construction project to ensure better relationships and reduce the complexity of the project. The integration of LDM and SM concepts together into the pre-construction phase provides a positive impact on the project performance. This paper aims to investigate the lean design management practices associated with stakeholder management in the pre-construction phase of construction projects in Sri Lanka. The research has used mixed method research approach to achieve the aforementioned aim. The research concluded that twenty-nine lean design management practices and eight stakeholder management practices can be integrated into the pre-construction phase in Sri Lanka. The findings further revealed that waste reduction, product performance enhancement, and functionality enhancement can be achieved by integrating LDM and SM practices together into the pre-construction phase in Sri Lanka.
{"title":"LEAN DESIGN MANAGEMENT PRACTICES ASSOCIATED WITH STAKEHOLDER MANAGEMENT DURING PRE-CONSTRUCTION STAGE IN SRI LANKA","authors":"Pwah Lawanga, Y. Sandanayake","doi":"10.31705/WCS.2021.34","DOIUrl":"https://doi.org/10.31705/WCS.2021.34","url":null,"abstract":"Lean Design Management (LDM) is a concept, which ensures efficiency and effectiveness of the design stage of a construction project to reduce uncertainty and improve the quality of the final product. Stakeholder Management (SM) is an effective approach for coordinating and managing stakeholders who involve with a construction project to ensure better relationships and reduce the complexity of the project. The integration of LDM and SM concepts together into the pre-construction phase provides a positive impact on the project performance. This paper aims to investigate the lean design management practices associated with stakeholder management in the pre-construction phase of construction projects in Sri Lanka. The research has used mixed method research approach to achieve the aforementioned aim. The research concluded that twenty-nine lean design management practices and eight stakeholder management practices can be integrated into the pre-construction phase in Sri Lanka. The findings further revealed that waste reduction, product performance enhancement, and functionality enhancement can be achieved by integrating LDM and SM practices together into the pre-construction phase in Sri Lanka.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126104034","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}
H. Kumara, N. Zainudeen, Tadk Jayasanka, K. Waidyasekara
The construction of pile foundation is a multifaceted activity among rest of the construction activities that are performed by heavy machines, materials, and energy sources generating substantial amount of CO2 and greenhouse gases along with many other forms of environmental pollution. Sustainable piling construction guarantees that the whole piling process meets environmental sustainability and ultimately human health and wellbeing. Many countries around the world, including United States, China, the United Arab Emirates, are in the forefront of reengineering piling construction activities. Implementation of sustainable practices in piling construction Sri Lanka is still at a low level. Succinctly, several hindrances and barriers can be identified when adopting sustainable piling construction practices. Hence, the aim of this paper is to identify the environmental impact due to the current piling construction practices in Sri Lanka and to investigate barriers in implementing sustainable piling construction practices. A questionnaire survey was conducted among thirty (30) experts in piling construction. Significant barriers were identified using the relative importance index technique in data analysis. The findings revealed that among the ten (10) barriers identified, cost overrun and poor pile design, investment risk, lack of awareness of sustainable techniques and technologies as the top three (3) barriers in implementing sustainable piling construction practices. The study clearly identified the need for improving sustainability practices that can also enhance cost-effectiveness and performance efficiency. Findings of this study will be useful in formulating strategies to overcome the barriers and improve sustainability practices in the local construction industry.
{"title":"BARRIERS IN IMPLEMENTING SUSTAINABLE PILING CONSTRUCTION PRACTICES IN SRI LANKA","authors":"H. Kumara, N. Zainudeen, Tadk Jayasanka, K. Waidyasekara","doi":"10.31705/WCS.2021.13","DOIUrl":"https://doi.org/10.31705/WCS.2021.13","url":null,"abstract":"The construction of pile foundation is a multifaceted activity among rest of the construction activities that are performed by heavy machines, materials, and energy sources generating substantial amount of CO2 and greenhouse gases along with many other forms of environmental pollution. Sustainable piling construction guarantees that the whole piling process meets environmental sustainability and ultimately human health and wellbeing. Many countries around the world, including United States, China, the United Arab Emirates, are in the forefront of reengineering piling construction activities. Implementation of sustainable practices in piling construction Sri Lanka is still at a low level. Succinctly, several hindrances and barriers can be identified when adopting sustainable piling construction practices. Hence, the aim of this paper is to identify the environmental impact due to the current piling construction practices in Sri Lanka and to investigate barriers in implementing sustainable piling construction practices. A questionnaire survey was conducted among thirty (30) experts in piling construction. Significant barriers were identified using the relative importance index technique in data analysis. The findings revealed that among the ten (10) barriers identified, cost overrun and poor pile design, investment risk, lack of awareness of sustainable techniques and technologies as the top three (3) barriers in implementing sustainable piling construction practices. The study clearly identified the need for improving sustainability practices that can also enhance cost-effectiveness and performance efficiency. Findings of this study will be useful in formulating strategies to overcome the barriers and improve sustainability practices in the local construction industry.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"6 5-6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132879300","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}
T. Thennakoon, H. Mallawaarachchi, R. Rathnayake, L. D. Silva
The petroleum-built environment is an important area of concern, which mainly includes refinery and storage facilities. Since its hazardous nature leading unexpected accidents and disasters, the safety of petroleum-built environment has become a vital requirement to eliminate the hazards associated with the petroleum process. However, a comprehensive study on safe handling of petroleum products in Sri Lanka is not reported so far. Hence, this study aimed at enhancing the health and safety in handling process of petroleum products in refinery and storage facilities. A comprehensive literature review was initially conducted on the petroleum products handling process, and national and international safety guidelines. Case study method was used since this study requires an in-depth investigation. Two prominent cases for refinery and storage facilities were studied to collect the data. Content analysis technique was used to analyse the data. The findings revealed that Factories Ordinance, National Fire Protection Association (NFPA) Guideline, Occupational Health and Safety Assessment Series (OHSAS) standard, and National Institute of Occupational Safety and Health (NIOSH) Guideline are commonly considered in ensuring health and safety of petroleum-built environment. Further, the chronic deceases in lungs and heart, cancers, high noise generation, unwillingness to use personal protective equipment (PPE), bowser and wagon accidents, fuel fire risk, pipeline leakages, and water and soil pollution were highlighted as common health and safety issues in refinery and storage. Finally, various strategies were proposed to overcome the identified health and safety issues ensuring the health and safety of petroleum-built environment.
{"title":"ENSURING HEALTH AND SAFETY IN PETROLEUM BUILT ENVIRONMENT: THE CASE OF SRI LANKA","authors":"T. Thennakoon, H. Mallawaarachchi, R. Rathnayake, L. D. Silva","doi":"10.31705/WCS.2021.28","DOIUrl":"https://doi.org/10.31705/WCS.2021.28","url":null,"abstract":"The petroleum-built environment is an important area of concern, which mainly includes refinery and storage facilities. Since its hazardous nature leading unexpected accidents and disasters, the safety of petroleum-built environment has become a vital requirement to eliminate the hazards associated with the petroleum process. However, a comprehensive study on safe handling of petroleum products in Sri Lanka is not reported so far. Hence, this study aimed at enhancing the health and safety in handling process of petroleum products in refinery and storage facilities. A comprehensive literature review was initially conducted on the petroleum products handling process, and national and international safety guidelines. Case study method was used since this study requires an in-depth investigation. Two prominent cases for refinery and storage facilities were studied to collect the data. Content analysis technique was used to analyse the data. The findings revealed that Factories Ordinance, National Fire Protection Association (NFPA) Guideline, Occupational Health and Safety Assessment Series (OHSAS) standard, and National Institute of Occupational Safety and Health (NIOSH) Guideline are commonly considered in ensuring health and safety of petroleum-built environment. Further, the chronic deceases in lungs and heart, cancers, high noise generation, unwillingness to use personal protective equipment (PPE), bowser and wagon accidents, fuel fire risk, pipeline leakages, and water and soil pollution were highlighted as common health and safety issues in refinery and storage. Finally, various strategies were proposed to overcome the identified health and safety issues ensuring the health and safety of petroleum-built environment.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"2001 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133183082","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}
Circular Economy (CE) has been recognised as one of the most comprehensive way of attaining sustainable development, which considers every aspect; social, technical, economic and environmental, of sustainable development. For a building construction project that aims to achieve circularity, collaboration of project stakeholders both within vertical horizontal supply chains is vital. This research project establishes importance of such collaboration and proposes methodology to identify stakeholders responsible for attaining circularity in projects through collaboration between such stakeholders. This paper reports of the key literature findings of this on-going research. The key findings from the current paper are establishing importance of stakeholder collaborations to achieve circular buildings and potential of blockchain technology in this regard. loping countries.
{"title":"PROMOTING STAKEHOLDER COLLABORATION IN ADOPTING CIRCULAR ECONOMY PRINCIPLES FOR SUSTAINABLE CONSTRUCTION","authors":"S. Senaratne, K. Abhishek, S. Perera, L. Almeida","doi":"10.31705/WCS.2021.41","DOIUrl":"https://doi.org/10.31705/WCS.2021.41","url":null,"abstract":"Circular Economy (CE) has been recognised as one of the most comprehensive way of attaining sustainable development, which considers every aspect; social, technical, economic and environmental, of sustainable development. For a building construction project that aims to achieve circularity, collaboration of project stakeholders both within vertical horizontal supply chains is vital. This research project establishes importance of such collaboration and proposes methodology to identify stakeholders responsible for attaining circularity in projects through collaboration between such stakeholders. This paper reports of the key literature findings of this on-going research. The key findings from the current paper are establishing importance of stakeholder collaborations to achieve circular buildings and potential of blockchain technology in this regard. loping countries.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"306 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121159033","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}
The green wall concept has been introduced as one of the solutions to reduce energy demand for ventilation requirements while improving the natural vegetation in dense urban areas. Past studies revealed that the energy-saving of green walls can vary substantially, from 35% to 90% across countries such as United Kingdom (UK), Canada, Russia, Greece, China, Saudi Arabia, India, and Brazil. Given these differences in energy saving of green walls due to climatic conditions and other reasons, direct application of such findings to the Sri Lankan context is questionable. Therefore, this study aimed to assess the thermal performance of green wall applications in Sri Lanka through a case study analysis of an indirect green façade with a comparative conventional wall. The required data were extracted through on-site temperature measurements from different points of both the exterior and interior wall surfaces of each building in different time intervals per day for a period of fourteen days spanning from October to November. The analysis shows that the green walls contribute to 21% - 36% of temperature difference compared to the conventional wall. Eventually, this results in 0.06 kWh of energy-saving per m2 of wall area, and thereby green walls contribute to the 80% energy saving for ventilation requirements. Hence, the study recommends that the use of green walls can be considered as one of the energy efficiency solutions while improving natural vegetation in tropical climatic cities and absorbing other benefits of green walls.
{"title":"OPERATIONAL ENERGY SAVING IN BUILDINGS: A COMPARISON OF GREEN VS CONVENTIONAL WALL","authors":"U. Madushika, T. Ramachandra, N. Zainudeen","doi":"10.31705/WCS.2021.37","DOIUrl":"https://doi.org/10.31705/WCS.2021.37","url":null,"abstract":"The green wall concept has been introduced as one of the solutions to reduce energy demand for ventilation requirements while improving the natural vegetation in dense urban areas. Past studies revealed that the energy-saving of green walls can vary substantially, from 35% to 90% across countries such as United Kingdom (UK), Canada, Russia, Greece, China, Saudi Arabia, India, and Brazil. Given these differences in energy saving of green walls due to climatic conditions and other reasons, direct application of such findings to the Sri Lankan context is questionable. Therefore, this study aimed to assess the thermal performance of green wall applications in Sri Lanka through a case study analysis of an indirect green façade with a comparative conventional wall. The required data were extracted through on-site temperature measurements from different points of both the exterior and interior wall surfaces of each building in different time intervals per day for a period of fourteen days spanning from October to November. The analysis shows that the green walls contribute to 21% - 36% of temperature difference compared to the conventional wall. Eventually, this results in 0.06 kWh of energy-saving per m2 of wall area, and thereby green walls contribute to the 80% energy saving for ventilation requirements. Hence, the study recommends that the use of green walls can be considered as one of the energy efficiency solutions while improving natural vegetation in tropical climatic cities and absorbing other benefits of green walls.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126608028","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}
The construction industry is required to improve sustainability to increase the rapid growth of the economy of Sri Lanka. The Central Environmental Authority (CEA) has introduced Environmental Impact Assessment (EIA) survey, Initial Environmental Examination (IEE), and Environmental Protection License (EPL) as environmental protection instruments that have been correlated with construction projects. To interrupt the smooth performance of the EIA, IEE, and EPL, many challenges have been associated with these procedures. The research problem was approached through six preliminary interviews to refine the identified challenges and issues related to EIA, IEE and EPL with their processes within the Sri Lankan context. Based on the preliminary interview results, forty questionnaires were distributed to investigate the level of significance of the challenges and issues with regard to EIA, IEE, and EPL related to development projects. For this research, mixed research approach is used. Collected data were analysed in terms of statistical analysis and content analysis using NVivo 12 software respectively. The analysed data were revealed different issues of EIA, IEE, and EPL instruments in Sri Lanka. Especially challenges related to regulatory bodies were identified. According to the research, there were many adverse effects due to the ineffective implementation of environmental protection regulatory instruments. Similarly, it revealed that issues were affected to the time, cost, and quality of the construction projects. Ultimately, it provided proper guidance for implementing EIA, IEE, and EPL instruments and the necessity of implementation of a post-monitoring mechanism for environmental protection instruments.
{"title":"CHALLENGES AND ISSUES OF ENVIRONMENTAL PROTECTION INSTRUMENTS RELATED TO INFRASTRUCTURE DEVELOPMENT PROJECTS IN SRI LANKA","authors":"B. Wijerathna, M. Abeynayake","doi":"10.31705/WCS.2021.15","DOIUrl":"https://doi.org/10.31705/WCS.2021.15","url":null,"abstract":"The construction industry is required to improve sustainability to increase the rapid growth of the economy of Sri Lanka. The Central Environmental Authority (CEA) has introduced Environmental Impact Assessment (EIA) survey, Initial Environmental Examination (IEE), and Environmental Protection License (EPL) as environmental protection instruments that have been correlated with construction projects. To interrupt the smooth performance of the EIA, IEE, and EPL, many challenges have been associated with these procedures. The research problem was approached through six preliminary interviews to refine the identified challenges and issues related to EIA, IEE and EPL with their processes within the Sri Lankan context. Based on the preliminary interview results, forty questionnaires were distributed to investigate the level of significance of the challenges and issues with regard to EIA, IEE, and EPL related to development projects. For this research, mixed research approach is used. Collected data were analysed in terms of statistical analysis and content analysis using NVivo 12 software respectively. The analysed data were revealed different issues of EIA, IEE, and EPL instruments in Sri Lanka. Especially challenges related to regulatory bodies were identified. According to the research, there were many adverse effects due to the ineffective implementation of environmental protection regulatory instruments. Similarly, it revealed that issues were affected to the time, cost, and quality of the construction projects. Ultimately, it provided proper guidance for implementing EIA, IEE, and EPL instruments and the necessity of implementation of a post-monitoring mechanism for environmental protection instruments.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129851124","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}
Life Cycle Costing (LCC) is a tool, which can evaluate all the building-related costs over a specified period of time, as mentioned in the agreed scope. Though there are number of benefits, LCC practices of consultants in the building industry are claimed to be weak. Hence, the aim of this research is to investigate barriers in practicing LCC techniques experienced by Sri Lankan quantity surveyors. Accordingly, a mixed approached was followed in data collection through a questionnaires survey and a series of expert interviews. However, in Sri Lanka, building construction consultants are not practicing the LCC concept to a greater extent. This research identified, lack of awareness on the LCC tool by employers and practitioners, lack of knowledge on LCC and lack of previous data as the major barriers for practicing LCC techniques in local context. It was suggested that enhancing the practice of LCC through conducting various awareness programme on LCC concept, build up and maintain the proper database and introducing user friendly tools, applications, calculations methods, guidelines and regulations, will lead to avoid above mentioned barriers, which will ultimately enhance the proper practice of LCC concept in the Sri Lankan quantity surveyors.
{"title":"BARRIERS IN PRACTICING LIFE CYCLE COSTING TECHNIQUES EXPERIENCED BY SRI LANKAN QUANTITY SURVEYORS","authors":"I. Sandaruwan, H. Chandanie, Jab Janardana","doi":"10.31705/WCS.2021.14","DOIUrl":"https://doi.org/10.31705/WCS.2021.14","url":null,"abstract":"Life Cycle Costing (LCC) is a tool, which can evaluate all the building-related costs over a specified period of time, as mentioned in the agreed scope. Though there are number of benefits, LCC practices of consultants in the building industry are claimed to be weak. Hence, the aim of this research is to investigate barriers in practicing LCC techniques experienced by Sri Lankan quantity surveyors. Accordingly, a mixed approached was followed in data collection through a questionnaires survey and a series of expert interviews. However, in Sri Lanka, building construction consultants are not practicing the LCC concept to a greater extent. This research identified, lack of awareness on the LCC tool by employers and practitioners, lack of knowledge on LCC and lack of previous data as the major barriers for practicing LCC techniques in local context. It was suggested that enhancing the practice of LCC through conducting various awareness programme on LCC concept, build up and maintain the proper database and introducing user friendly tools, applications, calculations methods, guidelines and regulations, will lead to avoid above mentioned barriers, which will ultimately enhance the proper practice of LCC concept in the Sri Lankan quantity surveyors.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128936862","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}
Price fluctuation is a significant risk factor, in every construction project market. It is unavoidable and difficult to forecast. However, it is often argued that there is a difference between the amount calculated with the CIDA price fluctuation formula method and the actual price fluctuation. Therefore, the aim of this research is to investigate the industry opinion on whether there is a difference between price escalations calculated using the CIDA price fluctuation formula and actual price fluctuation. A qualitative research approach was selected to achieve the aim of this research. Through a broad study of literature, it was identified the most critical factors which affected actual price fluctuation deviation. Meanwhile, semi-structured interviews were carried out to identify the reasons affecting fluctuation difference by analysing the data, which was used, and comparing the opinions given by the interviewees. The data was analysed using context analysis. The results of the research confirm that. there is a difference between the amount of price escalation using the ICTAD price fluctuation formula and the actual being used. The main reason behind this difference is the less accuracy of cost indices. To improve the accuracy of the results of this formula, appropriate data collection using an appreciate sample of contractors in producing price indices is recommended as the main.
{"title":"SUITABILITY OF ICTAD FORMULA AND CIDA PRICE INDICES TO CALCULATE THE AMOUNT OF PRICE ESCALATED IN CONSTRUCTION PROJECTS","authors":"Jab Janardana, A. Samaraweera, H. Jayasena","doi":"10.31705/WCS.2021.44","DOIUrl":"https://doi.org/10.31705/WCS.2021.44","url":null,"abstract":"Price fluctuation is a significant risk factor, in every construction project market. It is unavoidable and difficult to forecast. However, it is often argued that there is a difference between the amount calculated with the CIDA price fluctuation formula method and the actual price fluctuation. Therefore, the aim of this research is to investigate the industry opinion on whether there is a difference between price escalations calculated using the CIDA price fluctuation formula and actual price fluctuation. A qualitative research approach was selected to achieve the aim of this research. Through a broad study of literature, it was identified the most critical factors which affected actual price fluctuation deviation. Meanwhile, semi-structured interviews were carried out to identify the reasons affecting fluctuation difference by analysing the data, which was used, and comparing the opinions given by the interviewees. The data was analysed using context analysis. The results of the research confirm that. there is a difference between the amount of price escalation using the ICTAD price fluctuation formula and the actual being used. The main reason behind this difference is the less accuracy of cost indices. To improve the accuracy of the results of this formula, appropriate data collection using an appreciate sample of contractors in producing price indices is recommended as the main.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124769767","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}
People are at the core of lean implementation more than a set of tools and techniques. Several studies reflect that implementing lean to the construction industry heavily relies on the knowledge and skills of the people and how they respond to changes. Several studies have reflected that building human capacities as one of the most prominent considerations to foster lean concept in construction industry. However, there is a lack of empirical investigation on human capacities and strategies to build human capacities for successful lean construction implementation of large-scale contractors. Therefore, the purpose of this paper is to investigate the human capacities to be built in order to implement lean concept and propose organisational level strategies to build those capacities in large-scale contractors of Sri Lanka to foster lean construction. A qualitative approach was adopted as the research approach and case study was the selected research strategy. Fifteen respondents from three cases were interviewed to gather in-depth input to the study and collected data were analysed using code-based content analysis with NVivo 12 Software. The study identified positive attitudes, values, commitment, trust, adopt to cultural change, physical fitness, technical skills, and team building as human capacities necessary for unskilled and craft level workers. Positive attitudes, managerial and technical skills, team building, communication skills, knowledge, commitment, social skills and interest in new concepts were recognised as human capacities of administrative and professional and managerial levels. Several strategies that can be used by the contractors to build the above capacities have been summarised into a model. The final model presents the unskilled, craft, administrative, and professional & managerial level human capacities to be built by large scale contractors and strategies to be used for building those capacities to foster lean in construction industry.
{"title":"A MODEL FOR HUMAN CAPACITY BUILDING OF LARGE-SCALE CONTRACTORS TO FOSTER LEAN CONSTRUCTION IN SRI LANKA","authors":"N. Sandagomika, Y. Sandanayake","doi":"10.31705/WCS.2021.2","DOIUrl":"https://doi.org/10.31705/WCS.2021.2","url":null,"abstract":"People are at the core of lean implementation more than a set of tools and techniques. Several studies reflect that implementing lean to the construction industry heavily relies on the knowledge and skills of the people and how they respond to changes. Several studies have reflected that building human capacities as one of the most prominent considerations to foster lean concept in construction industry. However, there is a lack of empirical investigation on human capacities and strategies to build human capacities for successful lean construction implementation of large-scale contractors. Therefore, the purpose of this paper is to investigate the human capacities to be built in order to implement lean concept and propose organisational level strategies to build those capacities in large-scale contractors of Sri Lanka to foster lean construction. A qualitative approach was adopted as the research approach and case study was the selected research strategy. Fifteen respondents from three cases were interviewed to gather in-depth input to the study and collected data were analysed using code-based content analysis with NVivo 12 Software. The study identified positive attitudes, values, commitment, trust, adopt to cultural change, physical fitness, technical skills, and team building as human capacities necessary for unskilled and craft level workers. Positive attitudes, managerial and technical skills, team building, communication skills, knowledge, commitment, social skills and interest in new concepts were recognised as human capacities of administrative and professional and managerial levels. Several strategies that can be used by the contractors to build the above capacities have been summarised into a model. The final model presents the unskilled, craft, administrative, and professional & managerial level human capacities to be built by large scale contractors and strategies to be used for building those capacities to foster lean in construction industry.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132503980","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}
Dilakshan Sivakumaran, A. Rathnasinghe, L. Seneviratne
The introduction of the Internet of Things (IoT) in the manufacturing industry changed the trajectory to Industrial Revolution 4.0. Accordingly, it consists of various technologies, where the IoT is the basis of this revolution. However, there is an increasing gap between traditional Construction and digitalised data-driven Construction. In such context, the adoption of IoT applications in construction projects shall increase the productivity and better performance of construction activities. Consequently, IoT concepts, developments, applications, and potential benefits of IoT in the construction industry need to be acknowledged by industry practitioners before the implementation can take place. Hence, the purpose of this research is to outline such needs, thus provide an understanding on the potential of the IoT in the construction industry. Subsequently, a comprehensive literature synthesis revealed the expression IoT is best understood as a metaphor that encapsulates the immersion of almost anything and everything within the communications and connectivity space. The development is at an embryonic stage of development but proliferating in measuring, tracking, modelling, and prediction stages such as smart wearables, sensors attached to the structures and machinery, IoT linked Building information modelling (BIM) models, usage of drones. As a result, potential benefits are entertained by the construction industry practitioners towards sustainability. Ultimately, the study provides a starting point for raising awareness to facilitate and implement IoT applications in construction projects. In the absence of empirical literature on the implementation of the IoT paradigm in general, this paper presents a valuable contribution to the growing body of knowledge.
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Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'
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