Browsing by Author "Dissanayake, P"

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Analyzing the battery thermal behaviour under Sri Lankan driving and ambient conditions
(IEEE, 2023-12-09) Padmaperuma, C; Dissanayake, P; Gajanayake, S; Abeysooriya, R; Adikariwattage, V; Hemachandra, K
On par with the technological advancements, the usage of electric vehicles (EVs) has been significantly prevalent in most parts of the world, even in the developing third world countries. During the study, it focusses on the battery electric vehicles (BEVs) and an analysis on the thermal behavior of the battery of a BEV is performed. A two-way analysis is conducted since both theoretical approach and the simulation-based approach are utilized. The thermal profile of the battery of a BEV is analyzed against the modelled localized driving pattern, i.e., Colombo Metropolitan Driving Cycle and when the analysis is performed, local ambient temperature conditions have been used. Functional relationships have been developed between the tractive power and the power generated from the battery and the thermal profile which is determined theoretically is compared against the simulation-based battery thermal profile which is generated using MATLAB Simscape development environment. Significant similarities are witnessed between the theoretical plots and the plots which are generated by the simulations whereas certain discrepancies have also been identified and critically analyzed.
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Barriers to implementing waste-to-energy projects in Sri Lanka: a PESTEL analysis
(Emerald Publishing Limited, 2021) Kumarasiri, B; Dissanayake, P
Purpose It is no surprise that garbage is not garbage for some. It is money. This is why garbage has been overestimated to a point that money allocated for waste-to-energy (WtE) projects feed individual pockets. Many countries have already adapted WtE as a successful solution for both energy and waste crisis. Although in Sri Lanka six WtE projects were promised, the government abruptly decided that it would not have any more projects other than the two plants that were under construction. The purpose of this paper is to analyse barriers to the implementation of WtE projects in Sri Lanka. Design/methodology/approach An exploratory case study was selected as the research strategy to achieve the research aim. In total, two WtE megaprojects, which have been initiated implementation in Sri Lanka, were used as cases. A total of 12 semi-structured interviews with four personnel from each case and four government officials were used as the data collection technique. Data analysis was carried out using code-based content analysis. The barriers were extracted through analysis of case findings using an abductive analysis. The strategies to mitigate identified barriers were formulated based on attributes highlighted through case study findings and further validated through the opinions of three experts. Findings Barriers were analysed using the PESTEL framework to get ample insight into barriers that impact on the implementation of WtE projects in Sri Lanka. Less support from the government due to their less awareness on WtE, high investment and operational cost, lack of expert knowledge on WtE technologies in Sri Lanka, absence of a proper regulatory framework for implementation WtE technologies, lengthy process and delay in getting approvals from government process, poor attitudes of public and their protests due to the less awareness on WtE are the foremost barriers identified in this study. Further, strategies were proposed based on the empirical research findings to overcome barriers to facilitate the successful implementation of WtE projects in Sri Lanka. Research limitations/implications So far only two WtE megaprojects have been initiated the implementation in Sri Lanka. Therefore, the scope of the study was limited only to those projects. Moreover, the type of waste considered in this study is municipal solid waste (MSW), which has become a bigger problem in Sri Lanka. Originality/value The current study unveils an analysis of barriers for implementation of WtE projects in Sri Lanka, including strategies for mitigating identified barriers. The findings would enable relevant stakeholders, i.e. policymakers, industry practitioners, investors, government bodies and researchers to make informed decisions on implementation of WtE projects and thereby promote successful implementation of WtE projects in Sri Lanka.
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Comparison of skills between Sri Lankan and foreign construction labour
(2021-07) Manoharan, K; Dissanayake, P; Pathirana, C; Deegahawature, D; Silva, R
Construction significantly influences a country’s economy. The labour efforts are the lifeblood of construction operations. The construction industry has been facing many challenges due to skill shortages in many countries. This study aimed to compare the work-related skills of Sri Lankan labour against foreign labour forces. A qualitative study methodology was adopted through literature reviews and expert interviews to identify the labour skills which influence the productivity of construction operations. The interviews were conducted in two categories. The first category focused on identifying significant labour skills, the second category was conducted to compare the labour skills between Sri Lankan and foreign labour. Chinese, Indian, Bangladeshi, Nepalese, Saudi Arabian, Malaysian and Korean labour forces were considered in the pair-wise comparison process. Statement categories and codes were developed to perform this qualitative comparison. The overall results show the need of developing cognitive and self-management skills of Sri Lankan labourers, where the transferable skills are not much important. The study pointed up the importance of developing technical skills of Sri Lankan labour in concreting, bar bending, plastering, tiling, welding, electrical work and equipment handling, to reach the levels of leading foreign labour forces. Labourers’ commitment, punctuality, participation, self-motivation and problem solving were the significant self-management skills in this regard. Kappa statistics resulted in the inter-rater reliability of these findings at a substantial level. The study outcomes can be helpful for the skills development authorities to take actions for filling the skills gap, and also for some foreign construction sectors in similar scenarios
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Customer loyalty towards sustainable hotels: case studies in Sri Lanka
(2021-07) Silva, L; Dissanayake, P; Kumarasiri, B; Soorige, D
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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Distribution of the scaled condition number of single-spiked complex wishart matrices
(Institute of Electrical and Electronics Engineers, 2022) Dissanayake, P; Dharmawansa, P; Chen, Y
Let X 2 Cn m (m n) be a random matrix with independent columns each distributed as complex multivariate Gaussian with zero mean and single-spiked covariance matrix In + uu , where In is the n n identity matrix, u 2 Cn 1 is an arbitrary vector with unit Euclidean norm, 0 is a nonrandom parameter, and ( ) represents the conjugate-transpose. This paper investigates the distribution of the random quantity 2 SC(X) = Pn k=1 k= 1, where 0 1 2 : : : n < 1 are the ordered eigenvalues of XX (i.e., single-spiked Wishart matrix). This random quantity is intimately related to the so called scaled condition number or the Demmel condition number (i.e., SC(X)) and the minimum eigenvalue of the fixed trace Wishart-Laguerre ensemble (i.e., 􀀀2 SC (X)). In particular, we use an orthogonal polynomial approach to derive an exact expression for the probability density function of 2 SC(X) which is amenable to asymptotic analysis as matrix dimensions grow large. Our asymptotic results reveal that, as m; n ! 1 such that m 􀀀 n is fixed and when scales on the order of 1=n, 2 SC(X) scales on the order of n3. In this respect we establish simple closed-form expressions for the limiting distributions. It turns out that, as m; n ! 1 such that n=m ! c 2 (0; 1), properly centered 2 SC(X) fluctuates on the scale m 1 3 .
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Dreams fall apart : people’s experience of a development project in Sri Lanka
Dissanayake, P
Today, “development” has become one of the most influential and dominant concepts among global political and economic discourses. For many scholars the concept of development has become a convincing notion after the Second World War. After sixty years of development, one wonders whether developing nations were able to achieve their targets. In order to examine the link between the hegemonic development discourse and the practice, this study focuses on a particular development project carried out by the renowned NGO, World Vision, in two rural areas in Sri Lanka. I spent a month in Mahakumbukkadawala and Nawagattegama areas to collect data and stories. The study examines the notion of development as adopted by World Vision and how the project has affected the people in these areas. Further, the research demonstrates that development is unique to the place and the people; hence, it is impossible to import, but needs to grow from within the communities and individuals.
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Dreams Fall Apart: People’s Experience of a Development Project in Sri Lanka
(Faculty of Architecture University of Moratuwa, 2014-12) Dissanayake, P
Today, “development” has become one of the most influential and dominant concepts among global political and economic discourses. For many scholars the concept of development has become a convincing notion after the Second World War. After sixty years of development, one wonders whether developing nations were able to achieve their targets. In order to examine the link between the hegemonic development discourse and the practice, this study focuses on a particular development project carried out by the renowned NGO, World Vision, in two rural areas in Sri Lanka. I spent a month in Mahakumbukkadawala and Nawagattegama areas to collect data and stories. The study examines the notion of development as adopted by World Vision and how the project has affected the people in these areas. Further, the research demonstrates that development is unique to the place and the people; hence, it is impossible to import, but needs to grow from within the communities and individuals.
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The Eigenvectors of Single-spiked Complex Wishart Matrices: Finite and Asymptotic Analyses
(Institute of Electrical and Electronics Engineers, 2022) Dharmawansa, P; Dissanayake, P; Chen, Y
Let W 2 Cn n be a single-spiked Wishart matrix in the class W CWn(m; In + vvy) with m n, where In is the n n identity matrix, v 2 Cn 1 is an arbitrary vector with unit Euclidean norm, 0 is a non-random parameter, and ( )y represents the conjugate-transpose operator. Let u1 and un denote the eigenvectors corresponding to the smallest and the largest eigenvalues of W, respectively. This paper investigates the probability density function (p.d.f.) of the random quantity Z(n) ` = vyu` 2 2 (0; 1) for ` = 1; n. In particular, we derive a finite dimensional closed-form p.d.f. for Z(n) 1 which is amenable to asymptotic analysis as m; n diverges with m􀀀n fixed. It turns out that, in this asymptotic regime, the scaled random variable nZ(n) 1 converges in distribution to 2 2 =2(1 + ), where 2 2 denotes a chi-squared random variable with two degrees of freedom. This reveals that u1 can be used to infer information about the spike. On the other hand, the finite dimensional p.d.f. of Z(n) n is expressed as a double integral in which the integrand contains a determinant of a square matrix of dimension (n 􀀀 2). Although a simple solution to this double integral seems intractable, for special configurations of n = 2; 3, and 4, we obtain closed-form expressions.
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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
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Enhancing the solid waste management practices of export processing zones of Sri Lanka
(2023) Abhayapala, ONRP; Dissanayake, P
Solid waste management is a critical concern in the modern world due to the compilation of solid waste, which cannot be easily recycled or managed. Furthermore, this issue has been continuously affecting most of the countries which are having Export Processing Zones (EPZ). Similarly, EPZs in Sri Lanka zones are making a considerable impact on the incensement of solid waste. Due to the unavailability of the proper solid waste management system, social economic and environmental issues have aroused. Hence this research aimed to develop strategies for enhancing solid waste management practices in Export Processing Zones in Sri Lanka on the identification of better solid waste management practices in EPZs Sri Lanka. A qualitative research method was followed to achieve the aim of the study According to the interview guideline, 12 interviewees participated representing 3 case study EPZs in Sri Lanka. The primary data was collected through interviews the evaluated using manual content analysis. The research finds current solid waste management practises in the global context have different varieties however in Sri Lankan contracts are limited to segregation open dumping end minimum level of recycling and reusing process. Furthermore, in most cases, open dumping is used for hazardous solid waste generated in export processing zones. In the Sri Lankan context incineration is widely used as a solid waste management process at its primary level. However, financial capabilities limited motivation, unavailability of national policy, political influence, and limited awareness of the public and management cause barriers to the solid waste management process. The research suggested that finding the stakeholders and providing specific responsibilities with a focus on producing solid waste generation, developing national policy, continuous monitoring, providing financial incentives, generating independent management authority, and increasing public awareness through different campaigns will support the solid waste management process in an improved version. Even though solid waste management is limited to export processing zones, it is essential to concern this aspect in a wide view to ensure the social economy and Environmental Protection of the country. The research findings on solid waste management in EPZs concerning successful methods used in a global context propose guidelines for better practices. Furthermore, the development of the legal systems and long-term policies are key findings of the research to enhance the socio-environmental and economic best practices in Sri Lanka. Keywords: Solid waste management, Export processing zones, Sri Lanka, Incineration, 3R concept
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Exploring green features that make building materials green
(Faculty of Architecture Research Unit (FARU), 2021-12-03) Rathnayake, P; Soorige, D; Amarasinghe, SDIA; Dissanayake, P
The construction industry plays a significant role in the economic growth of a country. Nevertheless, the construction industry has created severe adverse environmental impacts. Therefore, green building technologies are implemented to alleviate the adverse effects of the construction industry. Using green materials instead of conventional building materials with high environmental impacts has been identified as one such implementation. However, there seems to be much confusion in defining green building materials. Hence, it is vital to explore the features of green building materials. Therefore, this article investigates green features that qualify the building materials as green building materials. A qualitative research approach was selected as the research methodology, and semi-structured interviews were conducted with seven green building experts. The data was analysed using content analysis. Findings revealed that recycled content, local availability of materials, embodied energy of materials, use of rapidly renewable material, usage of waste material for the production process, material wastage content in the production process and pollution prevention in the production process are the green features. The study results guide the identification of green building materials that can replace the materials with poor environmental sustainability.
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Exploring the facilities management education needs in Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2023-07-21) Sridarran, P; Jayakodi, S; Peiris, S; De Silva, N; Lai, JHK; Rathnayake, U; Dissanayake, P
Facilities Management (FM) is a multidisciplinary profession at the core of building operations management. As such, it requires a wide range of skills that differ significantly from region to region due to variable industry sizes, maturity levels, characteristics of building stocks and services, and occupant cultures. Consequently, it is essential to cultivate the necessary knowledge and skills to produce competent FM professionals to cater to the demand of the FM industry. Worldwide, various professional bodies have specified essential competencies for the FM profession. This study aims to reveal the current state of such competencies in the FM industry in Sri Lanka. Accordingly, a scrupulous literature review was conducted to identify the FM competencies. Twelve competency attributes germane to the Sri Lankan context were identified, and subsequently, a web-based questionnaire survey was conducted to analyse their importance and competence levels. The mean ratings were calculated using the received responses and were used to develop an Importance-Competence Analysis (ICA) matrix. The results indicated that ‘operations and maintenance’, ‘leadership’ and ‘technology’ are the prioritised competencies that need improvements through appropriate education and training.
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Informal construction sector and its effects on the construction industry of Sri Lanka
(2013-11-13) Lerociyan, J; Jeevanarth, T; Thushyanthy, S; Dissanayake, P
The objectives of this research are to study the informal construction sector in Sri Lanka, to identify the effects on construction industry and to propose suitable mitigation measures to minimize its effects on the construction industry. The informal construction was defined for this study as the construction works carried out without the use of formal construction agreements and construction works carried out by personal not having professional qualifications. This study was carried out via a questionnaire survey on a sample representing several provinces of Sri Lanka. Three separate types of questionnaires were prepared for respondents representing the public, professionals and non-professionals to ensure effective collection of data and the efficient data analysis. Prior to finalizing the questionnaire survey, a pilot study was conducted in order to get ideas and general opinions of the professionals and public through direct interviews. The questionnaire was prepared to identify whether the construction works fall into the category of informal construction and to find its effects on construction industry. The Significance Index was used to rank the factors that affect the construction industry and statistical software “SPSS” was used in this analysis. Research findings of this study were used to identify the effect of informal construction and to propose suitable mitigation measures to minimize its effects on the Sri Lankan construction industry.
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Key performance indicators for measuring performance of facilities management services in hotel buildings: a study from Sri Lanka
(Emerald Group Publishing Limited, 2022) Dasandara, M; Dissanayake, P; Fernando, DJ
People travel across the world for leisure, business, and relaxation purposes and seek short term or longterm accommodation facilities. With the increase in globalisation and rapid development in technology, the hospitality industry is changing quite momentously in order to respond to the changing needs and expectations of the travellers. Similarly, hotels as one of the main pillars of the hospitality industry, have an important role in a country’s economic development. Subsequently, Facilities Management (FM) has become a demanding profession in developing and developed economies, which maximise profits while reducing operation and maintenance costs. In this context, Facilities Managers support the functionality of non-core activities of the hotel sector in line with the core objectives. However, there is an inadequate performance in building services and maintenance of hotel buildings, which lead to loss of productivity, a reduction in profitability, a loss of clients and a general negative company image. To this end, the Performance Measurement (PM) is an essential requirement in hotel sector to increase the performance of FM services. Therefore, this paper synthesises the FM performance based on Key Performance Indicators (KPIs) that indicates how well the organisation is performing in accordance with their strategic objectives and goals. Further, the paper discusses the requirement of PM for FM services in hotel sector. Ultimately, a set of KPIs have been identified based on the available literature in order to measure the performance of FM services in hotel buildings.
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Limiting reasons for use of personal protective equipment among construction workers: Case studies in Sri Lanka
(Elsevier, 2021) Dasandara, SPM; Dissanayake, P
The Sri Lankan construction industry offers substantial employment opportunities and contributes significantly to national economic growth, but it is also plagued by unacceptably high rates of injuries and fatalities, especially among SME construction organisations. Existing literature disclosed that 90% of construction accidents in Sri Lanka are occurred due to unsafe behaviours of workers where the non-usage of personal protective equipment is prominent. Despite the abundance of research on construction safety, a gap in literature could be identified, when it comes to exploring the reasons behind the non-usage of PPE by construction workers in Sri Lanka. Therefore, this paper aimed to bridge the gap that exists in the existing literature. An exploratory case study was selected as the research strategy to achieve the research aim. Two SME construction projects were selected as cases. Fourteen semi-structured interviews were conducted in both cases with managerial and worker levels personnel. Data analysis was carried out using code-based content analysis. Findings were derived under three main categories, namely, ‘individual’, ‘organisational’, and ‘environmental’. Altogether 18 reasons including 09 reasons under the ‘individual’ category (refer Codes InC/R1 – InC/R9), another 08 reasons under the ‘organisational’ category (refer Codes OrC/R1-OrC/R8), and 01 reason under the ‘environmental’ category (refer Code EnC/R1) were identified in this study. The analysis of these reasons generated knowledge, which can be used by respective industrial safety practitioners in Sri Lanka in understanding the current situation and as a way forward for enhancing the use of PPE among construction workers.
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Misconceptions in heating, ventilation and air conditioning - airside strategy implementation of commercial buildings in Sri Lanka
(Department of Building Economics, 2024) Gajaba, PAPY; Dissanayake, P; Sandanayake, YG; Waidyasekara, KGAS; Ranadewa, KATO; Chandanie, H
To lower energy consumption and emission patterns in the building sector, discussions about climate change, the depletion of fossil fuels, and energy conservation are emphasised to create a more sustainable built environment. Thus, this paper examines common misconceptions regarding the implementation of HVAC airside strategies in commercial buildings, with a primary focus on Sri Lankan commercial buildings, where Heating, Ventilation and Air Conditioning (HVAC) systems account for a significant portion of electricity consumption. For this purpose, a comprehensive literature synthesis was conducted, a qualitative research approach was used to pursue the research aim, and an interview survey using semi-structured interviews was conducted targeting 17 experts. The collected data was then analysed using content analysis using the NVivo software. The findings of the research were discussed under three topics i.e., (i) adaptation of HVAC airside strategies to a tropical country, (ii) adaptation of HVAC airside strategies to coastal and highly humid areas, and (iii) sufficiency of prioritising waterside efficiency to gain overall HVAC system efficiency. In conclusion, it was derived that a balanced approach between airside and waterside HVAC systems should be maintained for optimal energy efficiency and the HVAC system can be tailored to diverse environmental conditions buildings are situated in. The knowledge gathered through this study can be used by industry professionals to enhance HVAC energy performance, while aiding academia in researching this sub-branch of HVAC systems in the Sri Lankan context.
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Post-december 2004 tsunami reconstruction in Sri Lanka and its potential impacts on future vulnerability
(Earthquake Engineering Research Institute, 2006) Khazai, B; Franco, G; Ingram, JC; del Rio, CR; Dias, P; Dissanayake, P; Chandratilake, R; Kanna, SJ
The 26 December 2004 tsunami displaced more than 500,000 people and killed an estimated 31,000 in Sri Lanka. Damage was not uniform, often reflecting distinct patterns of social, infrastructural, and ecological vulnerability. Severely affected populations tended to be poorer, to live in fragile structures, and to be more exposed to the tsunami as a result of prior environmental degradation in the coastal zone. The massive reconstruction effort may further decrease the resilience of rural communities by degrading the natural environment that sustains their livelihoods. A sustainable reconstruction approach must therefore consider long-term solutions that increase community resilience by fostering socioeconomic, infrastructural, and environmental progress. A reconnaissance team monitored the initial recovery stages and identified mechanisms in supporting research on reducing the long-term vulnerability of human settlements and ecosystems to future environmental hazards.
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The Potential of industrial symbiosis: an analysis of barriers to its implementation for better waste management in industrial zones in Sri Lanka
(Ceylon Institute of Builders - Sri Lanka, 2023-07-21) Herath, P; Dissanayake, P; Thisakya, G
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, the application of Industrial Symbiosis (IS) in an IZ is demanded as a solution. It is a collaborative approach in which different industries and organisations work together to create a closed-loop system that maximises resource efficiency, reduces waste, and improves environmental sustainability. Sri Lankan IZs still have not yet established a proper method to manage industrial waste, which has led to heaps of waste. Since IS is an effective and timely solution for this issue, this paper was intended to analyse barriers to the potential implementation of 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 barriers were extracted through the analysis of case findings using an abductive analysis. The empirical findings revealed 34 barriers under six categories, namely economic, organisational, regulatory, technological, risk and information. The higher initial cost, lack of financial ability, competition among participants, unavailability of institutional support, and lack of regulatory incentives for IS initiations were some of the key barriers identified in this study. The knowledge generated through this research can be used by respective industry practitioners to take informed decisions in addressing these barriers, which will be crucial to unlocking the potential of IS in IZ.
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Strategies for the minimization of failures in sustainable project management practices of government green building construction projects
(2024) Yapa, CIAJ; Dissanayake, P
Green Buildings (GB) assist achieving the sustainability of buildings and to measure whether the construction reduces the overall environmental impact on human well-being as well as the biosphere. The Sustainable Project Management Practices (SPMP) directly facilitate to fulfilment of the requirements of a Green Building Rating System (GBRS). Yet, current literature showcase failures in SPMP, and it negatively affects the outcome of the GB Project. Due to the implementation of GB concept for Government GB has been occurred in Sri Lanka since 2017, it is necessary to investigate challenges, opportunities, and potential areas for improvement Government GB. Therefore, assessing failures in SPMP, and proposing strategies to minimize them in Government GB would contribute to the policy implementation and compliance, capacity building and training programs, financial and economic implications, innovation and technology integration and long-term impact assessment. This study is therefore aimed on proposing strategies to minimise failures in SPMP. Secondary sources have been primarily reviewed to collect data about the concept of GB and SPMP. Qualitative approach was used in this study to achieve the aim of the study, and two (02) cases, which were rejected in the first attempt at the preliminary GB approval under the Blue–Green Rating System, were selected. Both case studies are multi-storied buildings; a government quarters building and an office building. The data was collected from 18 respondents who were involved in the construction of the aforementioned projects using semi-structured interviews. Additionally, document review was performed for the data triangulation relevant to the case studies. The collected data was analysed using content analysis method to systematically identify the sequence of research findings. The research findings showcase the level of SPMP that were used or neglected, the failures occur in SPMP, and the way they affected the project outcome. Key failures include absence of organizational culture management, lack of technical applications, resistance to allocate costs for certification process, absence of proper monitoring and feedback process, and motivation only to maintain “Green” image. Altogether, 43 strategies were proposed as the end result of the study for the minimization of failures in SPMP in Government GB Projects. The proposed few strategies includes notifying sustainability goals in organization level, defining each member’s responsibilities, formulation communication plan at the initiation stage, understanding the rating mechanism and other to minimize failures of absence of business ethics, lack of communication network likewise. Keywords: Sustainability, Green Buildings, Sustainable Project Management Practices, Project Life Cycle, Blue – Green Rating System