Institutional-Repository, University of Moratuwa
Welcome to the University of Moratuwa Digital Repository, which houses postgraduate theses and dissertations, research articles presented at conferences by faculties and departments, university-published journal articles and research publications authored by academic staff. This online repository stores, preserves and distributes the University's scholarly work. This service allows University members to share their research with a larger audience.
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Recent Submissions
item: Thesis-Abstract
Evaluation of the accuracy of human development index using additional economic, education and health indicators
(2024) Gamage, A; Dharmarathne, HASG
Generation of waste and thus management of waste has become a severe problem throughout the world, at it is rather applicable for Sri Lanka with a higher extent of poor waste management practices. In recent past Sri Lanka has faced many problems even including fatalities, consequential for not having a proper waste management system. The micro picture of this involves improper collection and monitoring of waste by the residential and commercial areas where people face many difficulties over waste management. As a solution, a mobile based garbage collection and monitoring system, which will become more convenient for the residents and municipals to use and manage their waste collection and monitoring can be proposed. The 3rd extension of the Technology Acceptance Model (TAM 3) is used to determine the dependent and independent variables as it illustrates the user behavior in adapting towards a technology. Progressing from the practical gap, primary objective of the study is to identify the determinants of end user perception towards implementation of a mobile based waste collection and monitoring system, adding the secondary objectives as: to identify any influence between the demographic variables and preference of using such a mobile based application for waste management and to seek the highest influential demographic factor. The study conducted focused on the Western Province and using multi-stage cluster sampling method; 487 valid responses were obtained, with an 86.21% response rate. The study consists of 11 independent variables with total of 16 dimensions with one dependent variable of preference over diffusing a mobile based waste collection and monitoring system. With the dimension reduction technique of principal component analysis and varimax, quartimax and equimax rotational methods, the independent variables were deduced in to six major factors: quality assurance, interference and appearance, work assistance, relative ease of use, subjective norms, and perception of external control. Proceeded, all demographic variables of gender, age, level of education, occupation and nature of resident has a significant influence on the overall preference over the mobile application where occupation being the highest influential demographic variable. Amongst the significant recommendations, simplicity, convenient, multilinguistic support, feedback, and report has been introduced.
item: Conference-Full-text
Sustainable urban mobility in Sri Lanka: the imperative for an inherent human-centered approach for holistic development
(Department of Building Economics, 2025) Jayalath JACD; Kulatunga U; Waidyasekara, KGAS; Jayasena, HS; Wimalaratne, PLI; Tennakoon, GA
Urban mobility plays a crucial role in the sustainable development of cities, shaping economic growth, supporting environmental sustainability, and enhancing social well-being. However, in Sri Lanka, urban transport infrastructure has failed to address key challenges in urban mobility, such as traffic congestion, air pollution, poor public transportation, and road safety. This research examines the necessity of a unique sustainable urban mobility approach that integrates human behaviour, cultural values, and environmental conditions. The study identifies the role of inherent solutions shaped by environmental, social, and cultural values in developing sustainable urban mobility approaches. By incorporating social values and behavioural theories, this study explores the role of human behaviour in sustainable urban mobility. The findings highlight the need for policies that align with local socio-cultural characteristics, emphasizing community-driven solutions rather than solely infrastructure-based approaches. The study concludes with policy recommendations to improve urban mobility through inclusive planning, enhanced public transportation, and promotion of active mobility. These findings contribute to the global discourse on sustainable urban mobility by demonstrating that a human-centered, context-specific approach is vital for ensuring the long-term success of transport policies in developing nations.
item: Conference-Full-text
Systematic literature review for re-defining ‘green’ in hospitality: typology-sensitive interpretations
(Department of Building Economics, 2025) Wijesuriya IR; Perera BAKS; Abenayake CC; Waidyasekara, KGAS; Jayasena, HS; Wimalaratne, PLI; Tennakoon, GA
"Green" practices are central to sustainability in hospitality, influencing environmental, social, and economic outcomes. Yet, definitions of “green” remain ambiguous and often fail to reflect the diverse operational realities of hotel typologies. This study offers a typology-sensitive redefinition of “green hospitality” through a Systematic Literature Review (SLR), guided by the Context–Intervention–Mechanism–Outcome (CIMO) framework. Excluding the mechanism to focus on conceptual mapping, 137 peer-reviewed Scopus articles were reviewed to trace the evolution of “green,” identify 19 thematic dimensions, and analyse their relevance across five hotel types: beach/island, mountain/lake, jungle/forest, urban/city, and mixed-type. Findings reveal significant variation in sustainability priorities by typology—urban hotels emphasize technology and HR equity, while forest lodges prioritize biodiversity and community engagement. A typology-based matrix highlights these contextual differences, challenging the adequacy of one-size-fits-all certification systems. Thematic dimensions span core areas like energy efficiency and water stewardship, and extend to emerging concerns such as staff equity, green financing, and green mobility. By mapping sustainability themes to hotel contexts, this study advances a more nuanced understanding of “green hospitality.” The findings inform the development of context-aware strategies and offer practical guidance for researchers, policymakers, and industry stakeholders seeking more effective, typology-sensitive sustainability practices.
item: Thesis-Abstract
Inequality of opportunity in newborn health : evidence from the Indian demographic and health survey
(2024) Nisanka, GSG; Balasooriya, NN
Solid tyres are widely used in industrial and commercial sectors for their high durability and puncture resistance. Sri Lanka is a significant manufacturer of industrial solid tyres, with a market share of 20-25% and solid tyres accounting for 61% of the export value of rubber products [1, 2]. Solid tyre manufacturing involves the use of solid tyre moulds and compression moulding techniques, which require precise temperature and pressure control to ensure consistent quality and performance.
One of the critical issues in solid tyre moulding is the deformation and formation of cracks in mould parts, which can significantly impact the quality and performance of the resulting tyres. Despite extensive research in the field of tyre manufacturing, there is a significant gap in the investigation of solid tyre mould deformation and its impact on fatigue failure. Furthermore, there is a lack of studies that address preventative measures or maintenance strategies for mould deformation.
The primary focus of this research is to identify the root causes of clamping-type solid tyre mould deformations and part failure. In this study, a theoretical equation for rubber pressure was developed based on rubber compressive stress-strain testing data, and an experimental setup was constructed to measure pressure values in various sizes of tyre mould cavities during the tyre curing process. The accuracy of experimental pressure values was verified by comparing them with the values calculated from the developed equation. The strength of mould components were assessed by examining their stress and deformation using both practical data and finite element analysis. Further simulations were carried out to predict the fatigue life of mould parts under the cyclic loads applied by the tyre curing presses. The main outcomes of this research involve deriving a calculation equation for solid tyre mould pressure and developing a method to evaluate the fatigue life of solid tyre moulds. The research outcomes hold significant value for tyre manufacturers as they enable the prediction of maximum pressure and calculation of fatigue life cycles, allowing for the enhancement of tyre mould assemblies and clamping mechanisms to minimize deformation and improve durability. Furthermore, The solid tyre mould pressure calculation equation and the fatigue life evaluation method developed in this study can be further applied to other types of rubber product moulds and pressure vessel design applications.
item: Conference-Full-text
The Applicability of carbon emission estimation with BIM environment: Sri Lankan context
(Department of Building Economics, 2025) Perera DAMV; Allis C; Perera BKC; Lokuge A; Waidyasekara, KGAS; Jayasena, HS; Wimalaratne, PLI; Tennakoon, GA
The global construction industry is increasingly adopting sustainable practices and advanced technologies to enhance efficiency and reduce environmental impacts. Within this context, managing carbon emissions has emerged as a critical component of sustainable development, with Building Information Modelling (BIM) serving as a pivotal tool in this pursuit. While developed countries have already integrated BIM and carbon emission estimates, there is a notable opportunity for similar advancements in developing countries, potentially leading to significant progress within the industry. Hence, this paper aims to explore the applicability of implementing BIM for carbon emission estimations in the Sri Lankan construction industry. A comprehensive review of existing literature identified the importance of carbon emission simulations, BIM implementation strategies and estimation procedures in other countries. Further, this research involved a survey to assess the familiarity and experience levels of construction professionals with BIM tools for carbon emission estimations in Sri Lanka. Findings from the research point to Autodesk Insight as the primary software tool used within the industry. While the industry demonstrates an awareness of these processes, its progress is hampered by a lack of experience in using these technologies for carbon emission estimation scenarios and the absence of crucial databases such as Environmental Product Declarations. The study recommends enhancing industry capacity through targeted training and the adoption of advanced tools. It also encourages further research to assess the compatibility of BIM technologies in the local context, aiming to bridge the gap and drive sustainable transformation in Sri Lanka’s construction sector.