WCS - 2022

Permanent URI for this collectionhttp://192.248.9.226/handle/123/19880

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item: Conference-Full-text
The applicability of regulations for the disposal of construction and demolition waste in Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Tissera, WDAC; Dahanayake, R; Edirisinghe, V; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Effective and efficient waste management plans/systems are vital in reducing and maintaining the generation of construction and demolition waste. It was proved in previous research, proper rules and regulations affect the effectiveness of the waste management strategies used in disposing of construction and demolition waste. Therefore, this research aim is to identify the regulations applicable for the disposal of construction and demolition waste in Sri Lanka to propose improvements in the available rules and regulations. Comprehensive literature and document review were conducted to approach the aim of this research. Questionnaire surveys and expert interviews were carried out to validate the findings of the literature survey and to gather required data in identifying the issues related to current rules and regulations and proposing improvements. The findings revealed that many gaps can be identified with the current regulations used in the disposal of construction and demolition waste. The results of the research identified a lack of intention in government regarding recycling, avoiding improper landfilling, and avoiding illegal dumping of construction and demolition waste as major issues. The study finally concluded the necessity of modified rules and regulations regarding the disposal of construction and demolition waste
item: Conference-Full-text
Cultural basic assumptions of consultants and contractors during negotiations
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Alankarage, S; Samaraweera, A; Royle, J; Macolino, A; Robertson, S; Palihakkara, AD; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Negotiations are required in every stage of a construction project. The process of negotiation involves being able to understand the position and emotions of the other side of the negotiation. A reliable means for understanding cultural basic assumptions on negotiation tactics assist in better predicting how individuals may act in a negotiation. This research aims to analyse the effect of basic assumptions of consultants and contractors on negotiations in the South Australian construction industry. This was approached through a case study research strategy, utilising semi-structured interviews with two contractors and two consultants each from three large South Australian Road projects followed by a Content Analysis. Findings reveal that both the contractors and consultants believe the nature of human relationships as collaborative and therefore view negotiations as a mean of strengthening the partnership. They negotiate openly to reach win-win outcomes. They view the nature of human nature to be good, therefore more trust and more openness to creative new ideas in negotiation planning. Respondents mostly believe the nature of the human activity to be harmonizing and are more likely to use trade-offs in reaching mutually beneficial negotiation outcomes. The knowledge created in this research will be useful for anyone preparing to negotiate within the South Australian construction industry or similar cultural setups to understand and predict how contractors and consultants would react to different situations and issues within negotiation processes and to achieve effective outcomes. Further research can study the basic assumptions of sub-contractors about negotiations.
item: Conference-Full-text
A deep learning-based building defects detection tool for sustainability monitoring
(2022) Ekanayake, B; Sandanayake, YG; Gunatilake, S; Waidyasekara, KGAS
To ensure sustainability of buildings, detection of building defects is crucial. Conventional practices of defects detection from building inspection data are mostly manual and error prone. With the advancements in computer vision, imaging technology and machine learning-based tools have been developed for real-time, accurate and efficient defects detection. Deep learning (DL), which is a branch of ML is more robust in automatically retrieving elements’ semantics to detect building defects. Although DL algorithms are robust in object detection, the computational complexities and configurations of these models are high. Therefore, this study presents a process of developing a computationally inexpensive and less complicated DL model using transfer learning and Google Colab virtual machine to improve automation in building defects detection. Cracks is one of the major building defects that constraint the safety and durability of buildings thus hindering building sustainability. Building cracks images were sourced from the Internet to train the model, which was built upon You Only Look Once (YOLO) DL algorithm. To test the DL model, inspection images of five (05) buildings collected by the Facilities Management department of a University in Sydney city were used. The DL model developed using this process offers a monitoring tool to ensure the sustainability of buildings with its’ ability of detecting cracks from building inspection data in real time accurately and efficiently. Although the current model is built to detect cracks, this process can be employed to automated detection of any building defect upon providing the training images of defects.
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Deficiencies in bespoke labour subcontract agreements: The case of large-scale contractors in the Sri Lankan construction industry
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Arampath, AMNN; Palliyaguru, R; Karunasena, G; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Labour subcontracting has become popular and has been extensively utilized in the building construction industry due to the potential for a reduction in initial cost for site mobilization. However, there are high risks involved in labour subcontracting due to inadequate and ambiguous subcontract agreements, which lead to disputes between parties. Thus, this paper aims to identify the deficiencies in large-scale contractors’ bespoke labour subcontract agreements in the Sri Lankan construction industry. Eight semi-structured interviews were carried out with main contractors (CS1 and CS2 as per the CIDA registrations) to identify the current practice of labour subcontracting and the terms/clauses included in their company-based labour subcontract agreement. The collected data was then subjected to a content analysis, and accordingly, deficiencies in the agreements were identified that fall into areas such as defects in the works, materials, tools and equipment, contract termination, discipline at the site, services provided by the main contractor, penalties, dispute management, health and safety, retention clause, quality of the works, rate of progress, laws and regulations, variations, insurance, and skill of the labour subcontractors
item: Conference-Full-text
Defining a ‘maturity model’ in the construction context: A systematic review
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Jayanetti, JKDDT; Perera, BAKS; Waidyasekara, KGAS; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
A maturity model is critical in analysing an entity as it evaluates the current situation and provides insights on enhancing the capabilities to reach higher maturity. Maturity models are being used in many industries and proven to have a positive impact on organisational development. Definition of a context specific maturity model is vital as it brings clarity to the model identification and better understanding relevant for a respective industry. Even though several construction maturity models exist, a clear and a comprehensive definition is not noticeable. A comprehensive definition for maturity models in construction sector would assist industry stakeholders to understand the components and key areas of construction maturity. Consequently, it would provide accurate and impactful results for construction firms to achieve higher maturity levels. Thus, the main aim of this paper is to establish a new definition for construction maturity models. In the process, the methodology included a systematic literature review adopting PRISMA literature review method and a content analysis using thematic analysis. The study analysed fifteen construction maturity models and identified nine overarching themes which were fundamental in developing the definition. The proposed definition would facilitate a better understanding among end users of construction maturity models, and it would assist the readers to distinguish it from other various models. Therefore, the derived definition would promote application of the concept of construction maturity in the industry. Further research could be conducted for diverse types of construction to enhance the effectiveness of the maturity models
item: Conference-Full-text
Defining critical infrastructure for Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Randeniya, M; Palliyaguru, R; Amaratunga, D; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
In the last few decades, infrastructure has played a major role in supporting modern society. Moreover, there has been an increase in natural and human-induced disasters worldwide. In these situations, securing infrastructure is a major requirement. Confusion and misinformation can result if the boundaries of what constitutes critical infrastructure for a country are not clearly defined. Identification of critical infrastructure is the first step in the process of securing and protecting the available critical assets. This study aims to establish the infrastructure that can be classified as "critical infrastructure" in Sri Lanka. This includes establishing a clear margin for subsectors that fall within and operate within critical infrastructure and, consequently, ascertaining a clear definition for the critical infrastructure of the nation. This study adopted a mixed-method approach, which included an initial comprehensive literature analysis on infrastructure and the parameters involved in determining the criticality of infrastructure. Secondly, a questionnaire and semi-structured interviews were conducted to determine which infrastructure sectors would be most critical to Sri Lanka. The most significant infrastructures with the parameters of national security, economic sustainability, quality of life, public health, and safety, the criticality of infrastructure were ranked in both pre- and post-disaster scenarios, and an appropriate margin for the Sri Lankan critical infrastructure was demonstrated. The emergency services sector was found to have the most significant infrastructure in both pre- and post-disaster situations. Accordingly, the study reveals emergency services, water, energy, transportation, telecommunication, and finance as the critical infrastructures for Sri Lanka.
item: Conference-Full-text
Delays and disruptions in the construction industry during the global pandemic
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Gammanage, SH; Gunarathna, N; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
COVID-19 pandemic has become a global catastrophe today dragging many nations towards severe economic distress. The Sri Lankan economy has no exception. Not surprisingly, the sluggish economic conditions in the country have adversely affected the construction industry in Sri Lanka. The pandemic has resulted in almost every construction project getting delayed or disrupted. This research aims to determine the factors that caused delays and disruptions in large scale construction projects in Sri Lanka due to pandemic. The overall impact of the global pandemic on construction projects in both local and international platforms were identified through a comprehensive literature review. Additionally, the impact on the local domain in terms of delay and disruption was assessed based on exploratory interviews and survey questionnaire disseminated among industry experts. Final conclusions were drawn by conducting 9 case studies and analysing responses to survey questionnaire provided by 30 industry practitioners. This study assisted in finding measures and mechanisms currently in use to mitigate the impact of delay and disruption of the construction phase of construction projects. The findings also paved the way to recognize innovative mitigation strategies to control the adverse impact on on-going construction projects. Analysis of the responses concluded that, delay in project kick-off, delays in material delivery, shortage of material, project suspension, reduction in the workforce productivity, health and safety concerns, regular price escalations as the key elements attributed to impact the project progress. The study has identified the present mitigating controls over delays or disruption are barely sufficient to address the concern and thus emphasised the need to resort to more effective techniques to remedy the issue.
item: Conference-Full-text
Developing a decision-making model for selecting smart retrofits
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Jayarathne, GHTD; De Silva, N; Sandanayake, YG; Waidyasekara, S; Gunatilake, S
The world is now experiencing a large environmental crisis, particularly buildings contributing significantly to the problem. Hence, building energy demand has been continuously growing in parallel with the rise in occupant energy demand. Smart retrofitting has been highlighted as one of the most effective ways to reduce energy consumption. However, the selection of suitable smart retrofits (SRs) has become a challenging task, from a range of SRs. A qualitative research approach was used in this research to identify relating to smart retrofits (SRs) for office buildings and establish governing factors for their selection. Semi-structured expert interviews were conducted to collect data related to SRs techniques, and content analysis was carried out to establish governing factors for selection of each SR. Out of 18 identified SRs from literature, fan cycling, ventilation control, and LED luminaires are the most implemented retrofit technique during the operational stage of the office buildings in Sri Lanka. Further, fan cycling, and ventilation controls were identified as commonly used types. Those findings were used to develop the decision-making model. Although SRs implementation is a comprehensive process, the recognized governing factors can be used to select suitable forms and features of SRs based on proposed decision-making model. This research further establishes metrics to benchmark the performance of SRs. The proposed model and the metrics could be valuable tools for building owners and facility managers to optimize facility operations.
item: Conference-Full-text
Development of post-disaster resettlement strategies for Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Lunuvila, HLJM; Kulatunga, U; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
A disaster is known as an unexpected hazardous event that impacts the communities through extensive damage, disruption and potential fatalities, which makes the affected communities seek external assistance to recover from the impact. Post-Disaster Resettlement (PDR) has been identified as a good option to convert the destructive zone into a sustainable society with long term developmental guidance. PDR projects can be defined as a complex process that deals with uncertainty and change the facility partially or entirely by replacement. The success of PDR programmes highly influences the mitigation and preparedness phases of the next disaster. Currently, PDR projects in Sri Lanka are not at the required success level due to different types of social and economic challenges. This study, therefore, aimed to identify and develop suitable post-disaster resettlement strategies for the successful development of PDR projects in Sri Lanka. A qualitative research stance was used for the proposed research as it requires in-depth inquiry into the PDR strategies. The research developed twelve strategies to succeed with PDR projects in Sri Lanka. The required knowledge sharing among parties of the PDR project, and using disaster-affected communities for managing and controlling of the PDR project are the main key strategies. The study highlighted the importance of PDR strategies to Sri Lanka, factors considered when developing PDR strategies, the shortcomings that have been witnessed in past PDR projects, and the possible ways of developing appropriate PDR strategies for Sri Lanka. Further, the study identified the levels that each strategy must implement in the resettlement process.
item: Conference-Full-text
Drivers and barriers to implement green building practices in higher education institutes in Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Illeperuma, IE; Abeynayake, MDTE; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Higher education institutes have a vast variety of humans, processes, and activities with significant waste generation, transportation, water and material consumption, and energy and electricity consumption. They have the potential to disseminate and lead future generations in the transition towards sustainability. Green buildings are designed, constructed, and operated by efficiently utilizing resources to provide a healthy and comfortable built environment while minimizing the life cycle cost. Higher education institutes across the world are several steps ahead of Sri Lanka in implementing green building practices. Thus, this research aimed to find approaches to increase the implementation of green building practices in higher education institutes in Sri Lanka. The research aim was approached through a qualitative case study. Accordingly, three cases were studied by collecting data through nine semi-structured interviews. Collected data were coded by using the NVivo 11 software and analysed using the cross-case analysis. Findings revealed that benefits associated with green buildings, leadership, specialization of the institute, institutional policy, and imposed regulations drive Sri Lankan higher education institutes to implement the green building practices. Lack of awareness, professional knowledge, skilled labour, and funds, political regime changes, poor planning, and stakeholder management were identified as barriers. The research outcomes guide the policymakers and management of the Sri Lankan higher education institutes to effectively implement green building practices. Further, the research outcomes will help to make strategies to reinforce the drivers and mitigate the barriers.
item: Conference-Full-text
Economic performance of green walls: A systematic review
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Madushika, UGD; Ramachandra, T; Geekiyanage, D; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Green walls are becoming an interesting solution to address the potential issues due to loss of greenery in the urban built environment. Even though green walls offer numerous benefits, the application pace of this concept seems slow in many parts of the world including Sri Lanka, which could be primarily due to the perception that the construction of green walls may involve additional costs compared to conventional walls and due to lack of awareness of its performance. This has driven the recent researchers to investigate the economic performance of green walls. However, those studies are limited to given local contexts, thus, the knowledge is scattered. Therefore, this paper aims to explore the economic performance of green walls in the global context collectively using a systematic review towards understanding the differences. Filtering the search for the period of 2010 to 2022 offered 15 out of 103 research articles suitable for the analysis. The cost data extracted shows high variability related to different characteristics of green walls, building envelopes, and climatic conditions. According to the review, the maintenance stage accounts for the highest portion of the Life Cycle Cost (LCC) in any type of green wall. The direct green façade is the cheapest option with lowest LCC compared to the indirect and living wall types while the living wall is the expensive type due to presence of more components. The review further confirms that in most instances, the economic benefits of green walls; increase property value, façade longevity, tax incentives, and energy-saving tend to offset the cost of green walls. It is expected that this collective review outcome would better guide the decision-making process of green wall implementation in a given context.
item: Conference-Full-text
Effect of COVID-19 on the small-scale construction companies: The case of Colombo district, Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Namarathna, CP; Gunarathna, N; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
COVID-19 is a global pandemic that has wreaked havoc on the lives of many individuals and has had a severe impact on the global economy. During this crisis, small and medium-scale businesses suffer the most and are the least prepared among all companies as per the previous studies done in other parts of the world. The majority of the small-scale construction firms in Sri Lanka act as subcontractors and generate job opportunities for a considerable number of people and are able to create a multiplier effect on the whole economy. However, it was observed that they are more vulnerable to the adverse impact of the pandemic. Thus, the principal goal of this research is to explore possible survival strategies to overcome critical financial issues of small-scale construction companies during the ongoing COVID-19 pandemic in Sri Lanka. A mixedmethod approach was adopted to gather the data for the study. A comprehensive literature review was carried out to identify the impact of COVID-19 on both global and local construction industries. The data for this study was gathered using semi-structured interviews and a comprehensive questionnaire survey with small scale construction company owners and construction industry professionals. The findings highlighted the key financial issues faced by the small-scale construction companies due to the pandemic including delays in client payments, supply chain management issues, frequent price escalation of construction materials, and inability to repay loans. The respondents suggested creating partnerships with financially strong companies, reduction of unwanted expenses, modifying supply chain channels and agreements, and ensuring business continuity plans as the strategies to be used to overcome the financial burden that occurred due to the pandemic.
item: Conference-Full-text
The effect of labour productivity on successful completion of major contracts during the COVID pandemic in Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Bandaranayake, BMHD; Rathnayake, MD; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
The COVID-19 outbreak is the greatest global health crisis in many years. It has had a dramatic effect on workforces and workplaces all around the world. The construction industry has been significantly affected by the COVID-19 pandemic and has been challenged to improve the safety and wellbeing of its workforce and control the collapse of construction productivity. The objectives of this study were to identify and rank the factors affecting lack of labour productivity in major contracts during the COVID pandemic and effect of labour productivity on successful project delivery in major contracts during the COVID pandemic in Sri Lanka and to recommend management strategies to combat them. A thorough literature search on recently published literature, industry experiences, reports, and other related documents was performed to collect and categorize the required data. 40 COVID-19 challenges were identified, and the results revealed that 19 factors including absenteeism at work site, travel restrictions, supply chain disruptions, cash flow delays and social isolation due to teleworking. 27 strategies were identified to overcome these challenges, and 14 results demonstrated including avoid material shortage at the site, conduct a risk analysis, create an end-end supply chain map, initiate flexible work schedules to promote social distancing, increase of hygiene of construction. The findings of this study will help the project managers and authorities in the construction industry understand the challenges of the pandemic and adopt effective strategies that will improve the health and safety of their workforce
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The effect of orientation and plant type on the thermal behaviour of living wall systems in buildings
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Erdener, HMY; Edis, E; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Living wall systems are the vegetated wall systems where growth layer is located behind the plant and integrated onto the wall. They started to be used widely due to their many benefits such as increasing the energy efficiency of the building. Living wall can contribute to wall’s thermal performance by its shading, insulation and wind protection effects. However, there are limited studies which is done by simulation to investigate its insulation effect. In the previous studies, its shading effect is usually simulated, and evaporation and transpiration were not taken into account which are the major effect of being a live mechanism. In this study, it is aimed to see the effect of living wall’s orientation and the plant types on interior thermal conditions, by using a microclimate simulation program ENVI-met. ENVI-met provides a vegetation model that simulates evapotranspiration and interaction between the outdoor microclimate with indoor climate. In this context, the temperature differences that occur between the wall layers and interior surface temperature of the living walls are compared with those of bare wall for two cities in Turkey which are representatives of hot and humid climate and temperate climate. Thus, it has been seen especially the west and south facades of the building and also the plant types according to their leaf area index (LAI) affect the efficiency of the building depending on the climate
item: Conference-Full-text
Efficient workplace planning and designing strategies to reduce waiting time in the outpatient departments (OPD) of government hospitals in Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Pathirana, DPIM; De Silva, N; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
The waiting time is a major challenge for government hospitals around the world, particularly in developing countries, due to inefficient design and limited facilities. This waiting time causes long queues, especially in service providing facilities. Hence, queuing is considered a key performance indicator when evaluating the performance of healthcare facilities. The outpatient department (OPD) is the main division of a hospital that handles a large number of patients daily. This research aimed to provide solutions for minimising waiting time in OPD premises through efficient planning and designing strategies. This study applied the queuing theory for two case studies to analyse the waiting time of the patients at the OPD. Hospital records and field observations were used to gather data. Further solutions for minimising the waiting time were identified using semi-structured interviews with hospital management and a questionnaire survey with patients at OPD. Field observations revealed that there were long waiting queues and long waiting times at the registration counter and the consultant rooms. Due to increased demand for OPD services, unnecessary arrivals, a lack of resources, and patients’ ignorance of OPD procedures were identified as causes of overcrowding. Further, to minimise waiting time at the OPD, it should leverage the efficient designs with properly placed inquiry counters, walkways, and directions; provide adequate facilities such as a spacious waiting area, and restructuring should be implemented. The findings of the research mark valuable insights into government hospitals, and the proposed solutions will be useful for hospital management.
item: Conference-Full-text
Electricity generation through municipal solid waste in Sri Lanka: Drivers and barriers
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Karunarathna, TADCD; Sridarran, P; Gowsiga, M; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
The rapid increase in population and urbanisation has led to an increase in per capita consumption and the generation of waste. Thus, the need of having improved management strategies for Municipal Solid Waste (MSW) has aroused. Waste to Energy (WtE) was a concept that came up as a solution for waste management and as an ideal solution for energy crises as well. WtE is a process of generating energy mainly in terms of electricity and heat by giving MSW as the input where it will become the fuel for this process. Most countries like Denmark, England, Australia, etc. use this as a successful Municipal Solid Waste Management (MSWM) strategy and as a sustainable energy producing mechanism too. But, in Sri Lankan WtE has become unsuccessful in many instances due to the influence of barriers to implementing WtE mega-scale projects. Thus, this study aims to explore existing barriers in light of expanding WtE projects in Sri Lanka. In addition, it proposes strategies to mitigate those barriers. Data was collected through expert interviews and manual content analysis was used for data analysis. Some identified key barriers and strategies in the frame of political, economic, social, technological, legal, and environmental are lack of having government infrastructure, high initial investments, social burdens, lack of technical knowledge on WtE, disposal of bottom and fly ash as barriers and providing infrastructure by the government, introducing debt financing, social awareness, getting foreign technical experts, using bottom ash and fly ash to produce some necessary bi-products as strategies.
item: Conference-Full-text
Enablers to facilitate industrial symbiosis for better waste management of industrial zones in Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Herath, P; Dissanayake, P; Kumarasiri, B; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Industrialisation has led to a massive increment in resource consumption and waste generation, which demands improved management strategies for Waste Management (WM), especially in Industrial Zones (IZ). Thus, Industrial Symbiosis (IS) concept was raised as a suggestion for WM in IZs through resource optimisation. IS concept being a sustainable solution focuses on waste elimination by creating a network of firms for the purpose of exchanging waste, by-products, utilities, infrastructure, and knowledge. Sri Lankan IZs still have not yet established a proper method to manage IW, which has led to heaps of waste. Since IS is an effective and timely solution for this issue, this paper was intended to analyse the enablers which will be vital in facilitating the application of the concept of IS for better WM of IZs in Sri Lanka. Despite the abundant research on IS concept, a gap in literature could be identified when it comes to exploring enablers to adapt IS for better WM of IZs in Sri Lanka. A qualitative research approach with two case studies were used in this study. A total of 12 interviews were conducted and collected data was analysed using code-based content analysis. The enablers were extracted through the analysis of case findings using an abductive analysis. The empirical findings revealed 34 enablers under environmental, economic, social, regulatory, organisational, technology, and market categories. Reduction of environmental deletion, reduction of WM cost, public pressure, environmental regulations, social relationships, availability of technology and recognition from buyers were some of the key enablers identified in this study. The knowledge generated through this research can be used by respective industry practitioners in Sri Lanka in adapting IS concept for better WM of IZs in Sri Lanka
item: Conference-Full-text
Enhance the collaborative involvement of stakeholders through cloud-based BIM in the Sri Lankan construction industry
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Mohanaraj, R; Ganeshu, P; Gowsiga, M; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
The construction industry relies on the collaboration of stakeholders for a successful outcome, as most the stakeholders are from multidisciplinary organisation to achieve a particular goal. In addition, information in the construction industry must be more accurate and on time to increase the project performance. Even though cloud-based collaboration can be a useful tool for working with the stakeholder, is not being used widely yet. Therefore, it is required to analyse the feasibility of collaborative stakeholders’ participation on cloud-based Building Information Modelling. Hence, this paper outlines: the level of stakeholder collaborative involvement in cloud-based Building Information Modelling; the benefits of stakeholder collaborative involvement through cloud-based Building Information Modelling; limitation for the cloud-based Building Information Modelling; as well as strategies to overcome these limitations. Findings of the study indicated that even though, the benefits derived from the stakeholder collaboration are high, the collaborative involvement level in cloud-based Building Information Modelling is very low due to several limitations. therefore, this study propose some strategies to overcome the limitations such as: the government can provide training and awareness programmes; formulate regulations allowing for electronic-data processing to lower tax; develop Building Information Modelling execution plans with assistance from the Construction Industry Development Authority; and improve Building Information Modelling Execution plans with the technology.
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Establishing the role of BIM towards mitigating critical project risks assessed using a fuzzy inference system
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Gaur, S; Tawalare, A; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
Risk management is an essential process for the successful execution of the project, and it is pertinent in achieving the project objectives and leading to its successful outcome. The nature of the construction industry, which is full of uncertainty and high capital investment, makes it notably more critical to address and manage the risks promptly. The most important part of the risk management process is identifying and assessing risks. However, the traditional Probability (P)-Impact (I) matrix used in their evaluation fails to account for the uncertainties witnessed in the determination of both P and I. This paper, therefore, uses a fuzzy approach to develop a risk assessment model. Further, the results of the generated model are compared with the conventional P-I matrix to show the effectiveness of the adopted fuzzy system. The data for the model development was collected from one of the metro-rail projects through a questionnaire. Subsequently, semi-structured interviews were conducted to identify the advantages of BIM in the project. The recognized BIM advantages were then correlated with the critical project risks to present it as the process for mitigating these risks. The study findings present the use of FIS to overcome the uncertainty in the risk management process, followed by the applicability of BIM as a risk mitigation tool. Establishing the role of BIM in the risk mitigation process can help in its wider acceptance in the construction industry
item: Conference-Full-text
Evaluation of construction workers mental health during COVID-19 pandemic in Nigeria
(Ceylon Institute of Builders - Sri Lanka, 2022-06-24) Zaccheus, OO; AbdulLateef, O; Cheen, KS; Folasade, AB; Sandanayake, YG; Waidyasekara, KGAS; Gunatilake, S
The need to ensure construction workers have good mental health is imperative because poor mental health has an economic cost that impacts individuals, companies, and nations. The aim of this study is to evaluate construction workers' mental health during the COVID-19 pandemic in Nigeria. To achieve this aim, a survey questionnaire was developed and administered online to building environment professionals working on construction sites. The results show that stress, feeling overwhelmed, feeling unusually confused, fatigue, being unpredictable and anxiety were the top mental health challenges during the COVID-19 pandemic. The result also revealed that training on mental health and the symptoms, awareness week activities, flexible working, and working from home policies were the top support provided by organisations for mental health wellbeing during COVID-19. The study concludes that difficulty in adapting to the challenges brought about by the deadly virus and its effect on the economy makes construction workers more susceptible to mental health challenges as it impaired their work life and thereby increasing their mental pressure.

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