Browsing by Author "Sugathadasa, PTRS"

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item: Conference-Extended-Abstract
An investigation on relationship between third party logistics user and provider at FMCG industry in Sri Lanka
(2011) Sugathadasa, PTRS; Rajapaksha, SS
The aim of this research is to investigate the relationship between Third Party Logistics (3PLJ user and provider at Fast Moving Consumer Goods (FMCG) industry in Sri Lanka from the users' perspective. The empirical research is used to investigate the user satisfaction on • Information technology in terms of using web enabled communication, IT based customer order management and IT based distribution management • Supply chain security in terms of providing physical security for material goods, providing information security and monitor environmental conditions associated with shipments • Green supply chain practices in terms of improving transportation efficiency and thereby reducing carbon emission, reducing the use of non recyclable materials and using energy efficient distribution centers. And it further investigates as to how information technology, supply chain security and green supply chain practices are affecting to the level of relationship between third party logistics user and provider. The results showed that 3PL users are satisfied with the above three factors provided by the 3PL providers in Sri Lanka. With the high level of satisfaction, these factors are affecting to the relationship between 3PL user and provider. The results of this study provide useful information especially for iPL providers to improve their services. Providers can be aware of the most frequently used services, the potential trends so that they can develop their capabilities for the future requirements.
item: Conference-Extended-Abstract
A case study approach to explore supply chain disruptions in Sri Lankan retail supermarket industry
(Sri Lanka Society for Transport and Logistics, 2016-06) Nalaka, MADS; Sugathadasa, PTRS; Gunaruwan, TL
item: SRC-Report
Development of nominal concrete mixes for medium strength concrete : coursework submited to the department of civil engineering
Jayasinghe, MTR; Sugathadasa, PTRS
In BS 8110 : Parti : 1985, the improved durability of concrete was achieved by using mixes with higher strength such as grades 25 and 30. However, volume batched nominal mix of 1:2:4 (20 mm ) is still used in many construction sites in Sri Lanka. This could be an undesirable situation which should be corrected with both short term and long term solutions. In this research, a cost effective short term solution is suggested to obtain grades 25 and 30 concretes based on a detailed experimental programme. The findings of questionnaire survey has revealed that many engineers in Sri Lanka are willing to adopt such quality improvements for concrete.
item: Thesis-Full-text
Development of nominal mixes suitable for small construction sites in Sri Lanka
Sugathadasa, PTRS; Jayasinghe, MTR
Both strength and durability of concrete are now considered as significant issues for concrete structures. In BS 8110: Part 1: 1985, the improved durability of concrete is achieved by using mixes with higher strength such as Grades 25 and 30. However, a recent survey has found that volume batched nominal mix of 1 :2:4 (20 mm) is still used in many construction sites in Sri Lanka, especially in the outstation sites. Though this mix gives 28 days compressive strength of 20 N/mm2, the long term durability of this concrete specially when exposed to aggressive environment is questionable. This could be an undesirable situation which should be corrected with both short term and long term solutions. The concrete mixes such as 1: 1.5: 3 and 1: 1: 2 recommended for Grades 25 and 30 are also not often used since they are expensive. It is shown that these two mixes could contain about 375 kg/m3 and 485 kg/m3, respectively. These are quite high cement contents and hence indicated the possibility for reduction to make them more cost effective. However, in all these mixes, the fine to coarse aggregate ratio was maintained at 1:2 so that the same gauge boxes could be used at the site. In this research, a cost effective short term solution is suggested to obtain Grades 25 and 30 concretes based on detailed experimental programme. It is shown that strengths of 25 N/mm2 and 30 N/mm2 could be obtained with volume batched 1:2:4 nominal mixes by adding extra cement. For Grade 25, 20% extra cement could be recommended. For Grade 30, it is 30%. This can be considered as a quite practical solution since an extra gauge box for the percentage increase in volume of cement could be used. With the aid of sorptivity testing, it is shown that extra cement could give enhanced durability. This study was further extended to determine the effectiveness of silica fume with locally available fine and coarse aggregates, It is shown that silica fume could give strength enhancement with certain mix proportions. It could also give the same workability at a lower binder to water ratio. It could also reduce the sorptivity thus increasing the durability. 'Keywords: Nominal concrete mixes, compressive strength, sorptivity
item: Conference-Full-text
Factors influencing the implementation of green supply chain management practices in a supermarket: a Sri Lankan case
(Sri Lanka Society of Transport and Logistics, 2021-10) Sugathadasa, PTRS; Hewage, HC; Perera, HN; Dharmarathna, D; Gunaruwan, TL
Green Supply Chain Management has emerged as one of the key industry trends in the supermarket sector. Adoption of Green Supply Chain Management in supermarkets is a challenging process that should be implemented along with many stakeholders such as manufacturers, suppliers, and customers. This study analyses the key influential factors for the implementation of Green Supply Chain Management practices in supermarkets. This study was carried out focusing on a leading supermarket chain in Sri Lanka. First, an extensive review of literature, and unstructured interviews with industry personnel were conducted to identify the key influential factors. Then, a questionnaire was distributed among the industry practitioners to rank the identified factors based on a Likert scale. Finally, this study shows seven key factors to consider when implementing Green Supply Chain practices in supermarkets.
item: Thesis-Full-text
Identification and modelling of construction supply chain risk triggers
Sugathadasa, PTRS; Kumarage, AS; Styger, L
The primary research problem was to identify and study the nature of triggers of construction supply chain risks within the context of the Sri Lankan construction industry. All of the important supply chain risk owners of the construction supply chains such as construction contractors, materials suppliers, consultants, client and construction industry as a whole as well as risk triggers created by them were considered in the research and this level of research has not been conducted before. The construction supply chain risk triggers are identified and categorized under construction industry specified risks, stakeholder generated risks and materials supply related risks. Stakeholder generated risks are further categorized as client generated risks, consultant generated risks and contractor generated risks. This is the first time in the literature, which used a holistic categorization for construction supply chain risks. Construction industry specified risk triggers are all types of risks from the construction industry/country/global context which are broken into the sand problem, regulations, seasonal trends and labour problem. Stakeholder generated risks triggers are contractor generated risks, consultants generated risks, and client generated risks. Contractor generated risks triggers are planning risks, decision making risks, financial risks, communication risks and sub-contractor risks. Client generated risk triggers are risks on communicating the scope of work and risks on fund supply. Consultant generated risks triggers are risks on submitting accurate designs and estimates. Materials supply related risk triggers are materials supply related quality risks, materials supply related availability risks, materials supply related on time delivery risks, materials supply related price risks. This is the first time in the literature, which used risk triggers to classify construction supply chain risks. Further, the research presents an interaction model the Risk Relationship Diagram (RRD) explaining the risk triggers and their impacts in the construction supply chains considering all the supply chain partners. The RRD can be used as a tool to assess the impact of triggers created by each stakeholder on others or how the triggers created by other stakeholders will affect each stakeholder. The model is useful in academic and practitioner perspective to investigate risk triggers at various points of the supply chain and to assess the risks and mitigation methods. Equations are derived to explain the relationship between each of the risk owners and respective risk triggers. Using the respective equations, each respective risk owner generated risk in value of money or time for a past project/contractor/consultant/client/materials supplier can be calculated. Using the answer, the perceived risk for each of the respective risk trigger for future similar project/contractor/consultant/client/materials supplier can be calculated. Using this model, the total risk impact for a given construction project can be derived. It is identified that the human generated risks, infrastructure/resource limitation risks and unavoidable risks are deep rooted primary risk triggers of any of the construction supply chains. However, the results presented are based on the Sri Lankan context and when the findings are applied for different socio economic context, the methodology explained can be used to a good extent but the models should be verified with the new context-This study reveals the risk profile of the Sri Lankan construction industry also. Further, twenty five risk topics were identified for the Sri Lankan construction supply chains. This research reveals twelve methods of risk identification as a holistic approach of construction supply chain risk identification. The methods can be used with suitable modifications to identify risks in any other supply chain also. The Double Triangulation Methodology introduced in this research can be applied in other research as a viable research methodology. In the Double Triangulation Methodology, it is suggested that it is compulsory to validate the results using minimum two other different data sets/two other approaches (ex: both qualitative and quantitative approaches).
item: Conference-Abstract
Lessons learnt from humanitarian logistics of the short term tsunami reactions in Sri Lanka in 2004
(Department of Civil Engineering, University of Moratuwa., 2014-08) Sugathadasa, PTRS; Pasindu, HR
In 2004, short-term humanitarian logistics and supply chain for the tsunami relief operations were carried out mainly by the Sri Lankan government’s formal leadership with the integrated support of community, NGOs, military and private sector. However, the informal relief operation activities taken by the community, private sector and NGOs also complemented the government’s formal relief operation. In the remote areas, all the relief operations were handled by the military with its infrastructure and expertise. Sri Lankan humanitarian logistics comprised flow of people, food, shelter, clothing, heavy machinery, and medical supplies together with financial and information flows. Supply chains and logistics have a vital role to play at a time of crisis in order to save lives and minimize suffering. Efficiency and effectiveness of supply chain and logistics process will decide the effectiveness of short-term reactions such as relief operation and medium term reactions such as restoring infrastructure facilities such as health, transport as well as rebuilding the disaster affected infrastructure and buildings The key findings of the short-term humanitarian logistics and supply chain for the relief operation may be summarized in the following key findings. The Sri Lankan government led the process with the integration of community, military, NGOs and private sector to rescue the affected people and to supply the essentials to the affected people. The informal and adhoc initiatives taken by the community, private sector and NGOs was encouraged in the short-term relief operation alongside the planned interventions by the government. This ensured that the synergy of the governmental macro plan and the micro plans of communities, NGOs and private sector for a common goal. Support of the military was fully incorporated into relief plan because they had the equipments, infrastructure and training to be an effective facilitator. This is specifically important in remote areas having poor infrastructure. Cohesion and coordination of the teams were encouraged to have an effective team integration to minimize the effort duplication. Communication is a vital part of short-term relief operation. As such, formal communication should be encouraged. It will ensure the effective financial flows, which is an important part of the relief supply and logistics operation.
item: Conference-Extended-Abstract
Managing supply chain transformation projects in the manufacturing sector: case-based learning from Sri Lanka
(Sri Lanka Society for Transport and Logistics, 2016-06) Perera, HN; Thibbotuwawa, AIG; Rajasooriyar, C; Sugathadasa, PTRS; Gunaruwan, TL
item: Conference-Abstract
Study of critical success factors and impact of ERP implementations for warehouses in Sri Lankan context
(Department of Civil Engineering, University of Moratuwa., 2014-08) Dampahalage, GC; Sugathadasa, PTRS; Pasindu, HR
Enterprise Resource Planning (ERP) concept is new to Sri Lanka and considered as a powerful tool for supply chain integration. Most of the third party logistics companies tend to implement various expensive ERP systems without any proper study of their impact and success factors which finally results the implementation an utter failure. This research is a study of the impact of ERP systems and their critical implementation success factors specifically done for the area of warehouse management and has two main objectives. First objective is studying the impact of an ERP system for the warehouse operation performance. This study is done by comparing the warehouse KPIs of after and before the ERP implementation. Second objective is to determine the critical factors that will distinguish between a successful and unsuccessful ERP implementation in a warehouse. The results that are obtained by the second objective can be directly used by the warehouse operators as a best practice for new ERP implementation projects and this information is commercially more valuable in the industry. Data collection was done using selected 15 warehouses for this research using two questionnaires which were answered by the managers, end-users of the system and the consultants of them. With the research the warehouse functions improved as a result of ERP implementation and 19 critical success factors for them were found out. This is the first successful research in Sri Lanka conducted in the areas of warehousing and ERP.
item: Conference-Abstract
Study of public sector medicine supply chain in Sri Lanka, with particular emphasis in medicine stock outs
(Department of Civil Engineering, University of Moratuwa., 2014-08) Dissanayake, KDNL; Sugathadasa, PTRS; Pasindu, HR
Sri Lanka as middle income earning country, delivers health care facilities to the general public on free of charge, through government hospitals network. The main aim of the government is to provide superior public health care service to ensure healthy nation. The government medicine supply chain plays a major role in public health sector and currently public hospitals are suffering with major issues like frequent medicine stock outs, quality fail medicines etc. According to recent research findings the availability of medicine in public health care institution is around 50%, while it is over 90% percent in most of private institutions. The main objective of the research is to identify the main root causes and other supply chain related issues in the public sector medicine supply chain in Sri Lanka, which results above mentioned hospital level issues. The secondary data were collected through literature survey while primary data were collected through questioners and interviews. Both Hospital level and institutional level problems are focused separately and collecting data on those was also done separately. To rank issues based on its’ criticalness, descriptive analysis were used for both hospital and institutional levels. As the final output of the research, critical issues in both hospital level and institutional level were identified. Finally, in the latter part of the research possible solutions to overcome those issues were discussed base on interviewees’ ideas in public health sector. The overall research findings and suggestions will paves the way towards excellent public sector health care delivery in Sri Lanka.