Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'最新文献
A large portion of infrastructure was flooded by water running off pavements or overflowing from the drainage systems in Fiji. The main objectives of this study are to identify the most suitable drainage management solution to reduce the overflow of the drainage system in Fiji, and to develop a framework of drainage management systems. The literature review was conducted to identify various drainage systems used to mitigate flooding around the world. After the review, the characteristics of Fiji such as climate pattern, location and soil type were analysed in the case study section. Secondary data which was obtained from Australia, Norway, the Netherlands, the U.S., Korea, and China were used in the research. The characteristics of Fiji were then mapped to other countries and a scoring system was created to analyse the suitability of different flood mitigation techniques in Fiji. Finally, multiple flood management strategies were proposed, and a drainage management framework for flood mitigation was developed.
{"title":"DEVELOPMENT OF A FRAMEWORK FOR FLOOD MITIGATION IN FIJI","authors":"M. Guo, A. Gurmu, L. Tivendale","doi":"10.31705/WCS.2021.21","DOIUrl":"https://doi.org/10.31705/WCS.2021.21","url":null,"abstract":"A large portion of infrastructure was flooded by water running off pavements or overflowing from the drainage systems in Fiji. The main objectives of this study are to identify the most suitable drainage management solution to reduce the overflow of the drainage system in Fiji, and to develop a framework of drainage management systems. The literature review was conducted to identify various drainage systems used to mitigate flooding around the world. After the review, the characteristics of Fiji such as climate pattern, location and soil type were analysed in the case study section. Secondary data which was obtained from Australia, Norway, the Netherlands, the U.S., Korea, and China were used in the research. The characteristics of Fiji were then mapped to other countries and a scoring system was created to analyse the suitability of different flood mitigation techniques in Fiji. Finally, multiple flood management strategies were proposed, and a drainage management framework for flood mitigation was developed.","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":"129978000","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}
Construction Schedule Acceleration (CSA) can affect not just the time but many other project aspects. During a CSA, there can be many impacts having significant effects on the project value. Previous studies have highlighted the importance of considering quality, productivity and functionality at a CSA along with cost and time. The aim of this research is, therefore, to investigate how value can be optimised during a CSA process. A qualitative research approach was adopted. Altogether, ten semi-structured interviews were conducted. The interview data were transcribed and analysed using a manually performed content analysis. This study has revealed types of CSA based on the purpose (delay minimising purpose or non-delay minimising purpose) and the party who initiates it. Cost, quality, functionality, productivity and profitability were identified as main value considerations during a CSA other than time. Applicability of value management (VM) job plan stages and Earned Value Management (EVM) indicators during different CSA stages to optimise value were also found. Finally, these findings were mapped in a framework to show how VM and EVM concepts could be used in enhancing value during a CSA. The framework conceptualises the relationship between “value” and CSA and how it varies upon distinct parties of a construction project during different stages and types of CSA. The proposed framework can be used as a guidance for optimising the value during the stages of a CSA.
{"title":"OPTIMISING VALUE DURING CONSTRUCTION SCHEDULE ACCELERATION","authors":"Wpm Silva, S. Gunatilake, M. Fasna","doi":"10.31705/WCS.2021.38","DOIUrl":"https://doi.org/10.31705/WCS.2021.38","url":null,"abstract":"Construction Schedule Acceleration (CSA) can affect not just the time but many other project aspects. During a CSA, there can be many impacts having significant effects on the project value. Previous studies have highlighted the importance of considering quality, productivity and functionality at a CSA along with cost and time. The aim of this research is, therefore, to investigate how value can be optimised during a CSA process. A qualitative research approach was adopted. Altogether, ten semi-structured interviews were conducted. The interview data were transcribed and analysed using a manually performed content analysis. This study has revealed types of CSA based on the purpose (delay minimising purpose or non-delay minimising purpose) and the party who initiates it. Cost, quality, functionality, productivity and profitability were identified as main value considerations during a CSA other than time. Applicability of value management (VM) job plan stages and Earned Value Management (EVM) indicators during different CSA stages to optimise value were also found. Finally, these findings were mapped in a framework to show how VM and EVM concepts could be used in enhancing value during a CSA. The framework conceptualises the relationship between “value” and CSA and how it varies upon distinct parties of a construction project during different stages and types of CSA. The proposed framework can be used as a guidance for optimising the value during the stages of a CSA.","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":"40 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":"129849141","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}
Contingency amounts are allocated in the construction projects to deal with uncertainties arising during the projects. Contingency amounts are usually estimated traditionally by simply adding a percentage of the estimated contract amount. However, the traditional system of contingency estimation is heavily criticised as ineffective due to several reasons. Therefore, this research focuses on evaluating the level of accuracy of current contingency estimation techniques in the Sri Lankan context. This study adopted a mixed-method research approach. Empirical data were collected using expert interviews and questionnaire survey. Data collected from the expert interviews were analysed using manual content analysis. Descriptive statistics and inferential statistics were used to analyse the questionnaire survey data. Findings revealed that inexpensiveness is the highly motivating factor for the rigid usage of the traditional method to estimate contingency in the Sri Lankan context. Estimated contract amount, procurement method, payment method, and type of client were identified as highly influencing factors in contingency estimation. Finally, the hypothesis test of this study revealed that the traditional contingency estimation is ineffective. Since the traditional contingency estimation proved ineffective and highly inaccurate, experts in the industry should consider a flexible alternative approach in contingency estimation to improve the accuracy of the contingency amount.
{"title":"ACCURACY OF TRADITIONAL CONTINGENCY ESTIMATION IN THE CONSTRUCTION INDUSTRY","authors":"N. Jeyananthan, A. Shandraseharan, U. Kulatunga","doi":"10.31705/WCS.2021.5","DOIUrl":"https://doi.org/10.31705/WCS.2021.5","url":null,"abstract":"Contingency amounts are allocated in the construction projects to deal with uncertainties arising during the projects. Contingency amounts are usually estimated traditionally by simply adding a percentage of the estimated contract amount. However, the traditional system of contingency estimation is heavily criticised as ineffective due to several reasons. Therefore, this research focuses on evaluating the level of accuracy of current contingency estimation techniques in the Sri Lankan context. This study adopted a mixed-method research approach. Empirical data were collected using expert interviews and questionnaire survey. Data collected from the expert interviews were analysed using manual content analysis. Descriptive statistics and inferential statistics were used to analyse the questionnaire survey data. Findings revealed that inexpensiveness is the highly motivating factor for the rigid usage of the traditional method to estimate contingency in the Sri Lankan context. Estimated contract amount, procurement method, payment method, and type of client were identified as highly influencing factors in contingency estimation. Finally, the hypothesis test of this study revealed that the traditional contingency estimation is ineffective. Since the traditional contingency estimation proved ineffective and highly inaccurate, experts in the industry should consider a flexible alternative approach in contingency estimation to improve the accuracy of the contingency amount.","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":"30 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":"114489873","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}
Collaboration amongst stakeholders in a construction project plays a significant role in managing and completing a project successfully. It specifically helps in interface management amongst the stakeholders. Among the various aspects of collaboration, there are two key factors that predominant. Firstly, the psychological factors that define a person as a natural collaborator, and secondly, the project-level enablers that determine a collaborative project. Therefore, in this study, two inductive theories are developed- one for psychological factors and another for project-level enablers of collaboration. This study aims to identify the key psychological factors and project enablers associated with collaboration and develop a conceptual framework to measure collaboration in a construction project. The workflow of the conceptual framework is developed in the first part of the research, and the input requirements are quantified. Robust hypothesis testing methodology is adopted to identify the key psychological factors and project enablers. Hypotheses testing yields three specific psychological factors for defining a person as a natural collaborator, and six enablers are essential for facilitating project collaboration. These results are used as input parameters in the derived conceptual framework to measure the level of collaboration in a construction project.
{"title":"A framework to measure collaboration in a construction project","authors":"Deepjyoti Nath, Varun Kumar Reja, K. Varghese","doi":"10.31705/wcs.2021.1","DOIUrl":"https://doi.org/10.31705/wcs.2021.1","url":null,"abstract":"Collaboration amongst stakeholders in a construction project plays a significant role in managing and completing a project successfully. It specifically helps in interface management amongst the stakeholders. Among the various aspects of collaboration, there are two key factors that predominant. Firstly, the psychological factors that define a person as a natural collaborator, and secondly, the project-level enablers that determine a collaborative project. Therefore, in this study, two inductive theories are developed- one for psychological factors and another for project-level enablers of collaboration. This study aims to identify the key psychological factors and project enablers associated with collaboration and develop a conceptual framework to measure collaboration in a construction project. The workflow of the conceptual framework is developed in the first part of the research, and the input requirements are quantified. Robust hypothesis testing methodology is adopted to identify the key psychological factors and project enablers. Hypotheses testing yields three specific psychological factors for defining a person as a natural collaborator, and six enablers are essential for facilitating project collaboration. These results are used as input parameters in the derived conceptual framework to measure the level of collaboration in a construction project.","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":"68-69 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":"114494493","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}
With the advent of technological advancements in the field of building maintenance, attempts have been taken to address the issues confronted by building maintenance technicians in the global context. Augmented Reality (AR) is one such concept which combines real environment with virtual content in 3D space that is experimented and proven to be effective in making the building maintenance activities more efficient by eliminating the causes for such difficulties faced by the technicians. In Sri Lanka, there is very limited use of such technologies in building maintenance practices and it is reasonable to mention that use of AR is minimum in this field. A gap is identified as there is no considerable literature exploring applications of Augmented Reality to ease building maintenance activities in Sri Lanka. Therefore, an effort is made to investigate into this area through a qualitative approach by taking a case into study and conducting interviews among technicians followed by an expert interview. The research highlights the use of AR in making the building maintenance practices in terms of data and instruction visualization leading to more efficient and effective outcomes while discussing on the benefits such as making maintenance tasks efficient, cost and time savings and high customer satisfaction as well as possible barriers for implementation of a similar program such as developing a Building Information Model to an existing building, inconvenience in making technicians adopted into a new system in the context of Sri Lanka
{"title":"USE OF AUGMENTED REALITY FOR EFFICIENT BUILDING MAINTENANCE IN SRI LANKA","authors":"M. Rajapaksha, P. Sridarran, R. Rathnayake","doi":"10.31705/WCS.2021.48","DOIUrl":"https://doi.org/10.31705/WCS.2021.48","url":null,"abstract":"With the advent of technological advancements in the field of building maintenance, attempts have been taken to address the issues confronted by building maintenance technicians in the global context. Augmented Reality (AR) is one such concept which combines real environment with virtual content in 3D space that is experimented and proven to be effective in making the building maintenance activities more efficient by eliminating the causes for such difficulties faced by the technicians. In Sri Lanka, there is very limited use of such technologies in building maintenance practices and it is reasonable to mention that use of AR is minimum in this field. A gap is identified as there is no considerable literature exploring applications of Augmented Reality to ease building maintenance activities in Sri Lanka. Therefore, an effort is made to investigate into this area through a qualitative approach by taking a case into study and conducting interviews among technicians followed by an expert interview. The research highlights the use of AR in making the building maintenance practices in terms of data and instruction visualization leading to more efficient and effective outcomes while discussing on the benefits such as making maintenance tasks efficient, cost and time savings and high customer satisfaction as well as possible barriers for implementation of a similar program such as developing a Building Information Model to an existing building, inconvenience in making technicians adopted into a new system in the context of 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":"74 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":"129923968","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}
It has been observed that inefficient buildings consume three to five times more energy than efficient buildings. Subsequently, improving the Energy Efficiency (EE) of existing buildings, which account for a significant portion of the energy consumption of the building sector, has become a top priority. Also, Heating, Ventilation, and Air Conditioning (HVAC) and lighting systems typically account for three-quarters of a building's energy consumption. Hence, focus on the energy efficiency improvements associated with these subsystems is entailed to optimise the energy use of buildings in comparison to other energy consumers. Energy Retrofit (ER) is defined as the main approach in improving the energy efficiency of buildings to achieve energy reduction goals. Nevertheless, there is a general lack of awareness regarding ER. Thus, the purpose of this article is to bridge this research gap by critically reviewing the applicable literature on ER. The paper first analysed the role of retrofits in buildings concerning optimising energy performance. The paper also discusses the implementation process of ER, which includes five steps viz. pre-retrofit survey, energy auditing, and performance assessment, identification of suitable and feasible retrofit options, site implementation and commissioning, and validation and verification. Further, different types of ER applicable to HVAC and lighting systems are discussed. In their endeavor to enhance the EE of existing buildings, practitioners could apply the findings of this study, as a basis to understand the available ER types and as a measure to gauge the efficiency of existing buildings, which will facilitate effective decision-making.
{"title":"ENERGY RETROFITS FOR IMPROVING ENERGY EFFICIENCY IN BUILDINGS: A REVIEW OF HVAC AND LIGHTING SYSTEMS","authors":"M. R. Amjath, H. Chandanie, S. Amarasinghe","doi":"10.31705/wcs.2021.25","DOIUrl":"https://doi.org/10.31705/wcs.2021.25","url":null,"abstract":"It has been observed that inefficient buildings consume three to five times more energy than efficient buildings. Subsequently, improving the Energy Efficiency (EE) of existing buildings, which account for a significant portion of the energy consumption of the building sector, has become a top priority. Also, Heating, Ventilation, and Air Conditioning (HVAC) and lighting systems typically account for three-quarters of a building's energy consumption. Hence, focus on the energy efficiency improvements associated with these subsystems is entailed to optimise the energy use of buildings in comparison to other energy consumers. Energy Retrofit (ER) is defined as the main approach in improving the energy efficiency of buildings to achieve energy reduction goals. Nevertheless, there is a general lack of awareness regarding ER. Thus, the purpose of this article is to bridge this research gap by critically reviewing the applicable literature on ER. The paper first analysed the role of retrofits in buildings concerning optimising energy performance. The paper also discusses the implementation process of ER, which includes five steps viz. pre-retrofit survey, energy auditing, and performance assessment, identification of suitable and feasible retrofit options, site implementation and commissioning, and validation and verification. Further, different types of ER applicable to HVAC and lighting systems are discussed. In their endeavor to enhance the EE of existing buildings, practitioners could apply the findings of this study, as a basis to understand the available ER types and as a measure to gauge the efficiency of existing buildings, which will facilitate effective decision-making.","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":"8 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":"122723448","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}
K. Gunawardana, Y. Sandanayake, G. Karunasena, TS Jayawickrama
Public Procurement Process (PP Process) in construction industry has identified as integral part to achieve sustainability in developing countries. Sustainability links with the social, environmental, and economic indicators. The PP Process contributes largely to the budget of developing nations. However, existing PP Processes of developing countries have shown lagging features to achieve sustainability due to a number of problems. Further, the depth and gravity of the problems depend on the impact of root causes throughout the activities and stages of procurement lifecycle of a project. Hence, this paper aims to identify the problems and related root causes during the various activities in the stages of PP Process to achieve sustainability in construction projects in developing countries. In order to achieve the aim, this study started with a comprehensive literature review to identify the stages, activities, problems and related root causes in PP Process to achieve sustainability. Subsequently, interviews with 14 subject matter experts were carried out to identify and verify the stages, activities, problems and related root causes to achieve sustainability in PP Process in developing countries. The data were analysed using manual content analysis. The findings of the study identified 10 problems and 22 root causes that affect the 39 activities in 05 stages of PP process in project procurement lifecycle in construction industry. The outcome of this paper will be beneficial to relevant authorities, funding agencies and policy makers in taking necessary steps to update the existing guidelines, bidding documents, procedures and protocols to address the identified problems and root causes to achieve sustainability of developing countries.
{"title":"PROBLEMS AND RELATED CAUSES OF PUBLIC PROCUREMENT PROCESS TO ACHIEVE SUSTAINABILITY IN DEVELOPING COUNTRIES","authors":"K. Gunawardana, Y. Sandanayake, G. Karunasena, TS Jayawickrama","doi":"10.31705/WCS.2021.40","DOIUrl":"https://doi.org/10.31705/WCS.2021.40","url":null,"abstract":"Public Procurement Process (PP Process) in construction industry has identified as integral part to achieve sustainability in developing countries. Sustainability links with the social, environmental, and economic indicators. The PP Process contributes largely to the budget of developing nations. However, existing PP Processes of developing countries have shown lagging features to achieve sustainability due to a number of problems. Further, the depth and gravity of the problems depend on the impact of root causes throughout the activities and stages of procurement lifecycle of a project. Hence, this paper aims to identify the problems and related root causes during the various activities in the stages of PP Process to achieve sustainability in construction projects in developing countries. In order to achieve the aim, this study started with a comprehensive literature review to identify the stages, activities, problems and related root causes in PP Process to achieve sustainability. Subsequently, interviews with 14 subject matter experts were carried out to identify and verify the stages, activities, problems and related root causes to achieve sustainability in PP Process in developing countries. The data were analysed using manual content analysis. The findings of the study identified 10 problems and 22 root causes that affect the 39 activities in 05 stages of PP process in project procurement lifecycle in construction industry. The outcome of this paper will be beneficial to relevant authorities, funding agencies and policy makers in taking necessary steps to update the existing guidelines, bidding documents, procedures and protocols to address the identified problems and root causes to achieve sustainability of developing 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":"19 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":"128197629","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}
In this era of globalisation and fierce competition among businesses, contractors in the construction industry often tend to engage in opportunistic behaviour to gain more benefits at the expense of owners. The past researchers have defined contractors’ opportunistic behaviour (COB) as the behaviour of the contractor that is motivated to pursue self-interests at the expense of the client. The researchers in this field have identified project governance (PG), which considered as management of project management can be used to minimise the COB. Trust and formal control are the major PG modes that are used in the global construction industry. However, there is a dearth of research that identified the suitable PG modes to minimise the effects of COB in the Sri Lankan construction industry. Hence, this study aims to investigate the PG modes that can be used to minimise the effects of COB. Accordingly, qualitative research approach was adopted to achieve the research aim. A comprehensive literature review followed by case studies was conducted to investigate the synergy between the concepts. Information gathered were subjected to content analysis. This study revealed that formal control and combination of trust and formal control as the most suitable PG modes for Sri Lankan construction industry. The research further identified the factors that affect the COB namely, contractors focus on revenue maximisation, external uncertainties, contractual complexity, and dynamic complexity. The study further highlighted the importance of minimising COB to help minimise conflicts and reduce the financial losses incur for project stakeholders.
{"title":"THE CHOICE OF PROJECT GOVERNANCE MODES TO MINIMISE CONTRACTORS’ OPPORTUNISTIC BEHAVIOUR","authors":"B. Arsecularatne, Y. Sandanayake","doi":"10.31705/WCS.2021.45","DOIUrl":"https://doi.org/10.31705/WCS.2021.45","url":null,"abstract":"In this era of globalisation and fierce competition among businesses, contractors in the construction industry often tend to engage in opportunistic behaviour to gain more benefits at the expense of owners. The past researchers have defined contractors’ opportunistic behaviour (COB) as the behaviour of the contractor that is motivated to pursue self-interests at the expense of the client. The researchers in this field have identified project governance (PG), which considered as management of project management can be used to minimise the COB. Trust and formal control are the major PG modes that are used in the global construction industry. However, there is a dearth of research that identified the suitable PG modes to minimise the effects of COB in the Sri Lankan construction industry. Hence, this study aims to investigate the PG modes that can be used to minimise the effects of COB. Accordingly, qualitative research approach was adopted to achieve the research aim. A comprehensive literature review followed by case studies was conducted to investigate the synergy between the concepts. Information gathered were subjected to content analysis. This study revealed that formal control and combination of trust and formal control as the most suitable PG modes for Sri Lankan construction industry. The research further identified the factors that affect the COB namely, contractors focus on revenue maximisation, external uncertainties, contractual complexity, and dynamic complexity. The study further highlighted the importance of minimising COB to help minimise conflicts and reduce the financial losses incur for project stakeholders.","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":"61 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":"132562066","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}
Buildability deals with the optimal integration of construction expertise at various project stages to achieve the overall project goals. Incorporation of buildability improves the construction project performance in terms of its cost, quality, productivity, safety, and results early completion. Thus, having a sound understanding of buildability concept is paramount for finding solutions for transforming current practices towards successful project deliveries. The numerous past studies reviewing the concept of buildability in the past have highlighted the interchangeability of the terms “constructability” and “buildability”. However, in some studies, these two terms contradict rather than considered similar. Moreover, the application of the concept of buildability is widely discussed during the design phase while some studies recommend it to be applied in the construction phase. Thus, there is no clear consensus on the clarity of the key constructs of these terms or when to apply buildability. This paper aims to systematically review the application of the concepts “buildability” and “constructability” in the construction sector and compare the definitions to understand the key constructs and best phase of the construction project for its applicability. A structured literature review covering indexed publications from 2011-2021 was carried out to identify the existing literature. Following a Systematic Literature Review (SLR) technique, a total of 38 out of 162 research contributions have been considered for an in-depth analysis. The choice of interpretations, comments, statements, perspectives, and definitions used in 38 studies were examined. The study identified the key constructs of two terms and recommends applying buildability throughout the lifecycle of the project.
{"title":"COMPARISON BETWEEN THE TERMS CONSTRUCTABILITY AND BUILDABILITY: A SYSTEMATIC LITERATURE REVIEW","authors":"Pli Wimalaratne, U. Kulathunga, T. Gajendran","doi":"10.31705/WCS.2021.17","DOIUrl":"https://doi.org/10.31705/WCS.2021.17","url":null,"abstract":"Buildability deals with the optimal integration of construction expertise at various project stages to achieve the overall project goals. Incorporation of buildability improves the construction project performance in terms of its cost, quality, productivity, safety, and results early completion. Thus, having a sound understanding of buildability concept is paramount for finding solutions for transforming current practices towards successful project deliveries. The numerous past studies reviewing the concept of buildability in the past have highlighted the interchangeability of the terms “constructability” and “buildability”. However, in some studies, these two terms contradict rather than considered similar. Moreover, the application of the concept of buildability is widely discussed during the design phase while some studies recommend it to be applied in the construction phase. Thus, there is no clear consensus on the clarity of the key constructs of these terms or when to apply buildability. This paper aims to systematically review the application of the concepts “buildability” and “constructability” in the construction sector and compare the definitions to understand the key constructs and best phase of the construction project for its applicability. A structured literature review covering indexed publications from 2011-2021 was carried out to identify the existing literature. Following a Systematic Literature Review (SLR) technique, a total of 38 out of 162 research contributions have been considered for an in-depth analysis. The choice of interpretations, comments, statements, perspectives, and definitions used in 38 studies were examined. The study identified the key constructs of two terms and recommends applying buildability throughout the lifecycle of the project.","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":"63 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":"115325878","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}
L. Silva, P. Dissanayake, B. Kumarasiri, D. Soorige
The hotel sector is directly combined with customer loyalty as it has become increasingly obvious by incorporating its’ antecedents with customer satisfaction and trust. Customer loyalty is influenced by customer satisfaction of hospitality service when it is significantly related to service quality. Sustainability is an important concept that can adapt to achieving customer loyalty in the Sri Lankan hotel sector. Indeed, most conventional hoteliers in Sri Lanka do not have the idea of success in achieving customer loyalty through the sustainability concept. Also, despite the abundance of research on the concept of sustainability, a gap in literature could be identified, when it comes to analysing the customer loyalty aspects toward sustainable hotels in Sri Lanka. This study is therefore aimed to bridge the gap that exists in the literature to prove the success of adopting the concept of sustainability in achieving customer loyalty. A qualitative research approach with two case studies was used to achieve the aim of the study. The selected cases include two green-certified five-star hotels which are under the topmost sustainable hotels in Sri Lanka according to Sri Lanka Tourism Development Authority. A total of 10 interviews were conducted from both cases. The collected data were analysed using content analysis. The customer loyalty aspects were identified on the deriving basis of self-influence factors of customers and their consideration of benefits in sustainable hotels. The study unveils an analysis of the interconnection between sustainable hotels and customer loyalty. The findings provide the path to conventional hotels to identify the success of implementing sustainability concept in achieving customer loyalty.
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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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