R4TLI - 2022

Permanent URI for this collectionhttp://192.248.9.226/handle/123/19391

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item: Conference-Full-text
Research for Transport and Logistics Industry Proceedings of the 7th International Conference [Pre Text]
(Sri Lanka Society of Transport and Logistics, 2022-08) Perera, N; Thibbotuwawa, A
item: Conference-Full-text
Exploring the impact of covid-19 on mobility in Colombo metropolitan region, Sri Lanka
(Sri Lanka Society of Transport and Logistics, 2022-08) Ranaweera, NN; Jayasinghe, A; Perera, N; Thibbotuwawa, A
To combat the COVID-19 pandemic, the Sri Lankan government has initiated a variety of travel restrictions, particularly in the Colombo Metropolitan Region (CMR). With over 50% of cases and significantly different CMR mobility patterns, the CMR has evolved as the focal point of the COVID-19 outbreak in Sri Lanka. However, only a few research have been carried out to assess the impact of the COVID-19 pandemic on mobility in Sri Lanka. Therefore, the objective of this paper is to investigate the influence of COVID-19 on CMR mobility at different times throughout the COVID-19 epidemic. The mobility change in Sri Lanka was examined using the Google COVID-19 Community Mobility Change data. 934 questionnaire survey samples were used to analyze the change in CMR mobility. The results indicate that whereas residential mobility in Sri Lanka increased by up to 50% following the epidemic, mobility in the workplace, transportation, parks, pharmacies, and retail decreased. According to the survey's findings, daily travel frequency has dropped by more than 50%, and people prefer their private vehicles over public transportation. Therefore, the study gives essential and practical information to transportation engineers, planners, and decision-makers to take effective actions to regulate the pandemic situations and mobility.
item: Conference-Full-text
A property valuation model to identify thriving real estate opportunities, based on transport factors
(Sri Lanka Society of Transport and Logistics, 2022-08) Senadheera, S; Warusavitharana, E; Perera, N; Thibbotuwawa, A
This study is an attempt to comprehend what transport variables (E.g. distance to main city, distance to Major “A”, “B” Roads etc.) has higher or lower impact on a property’s worth and to what extent has it been impacting on a property’s value. In order to experiment it, a valuation model using Geographical Information System and Multi linear Regression has been created for an urban local area, using the foundation of literature and real ground stakeholders’ judgments. The model generates the outcome of the spatial variation of property value, demonstrating the behavioral patterns and trends graphically, considering both the adjacency effect (transport variables) and neighborhood effect. (physical and social environments). This research highlights the prominence in transport variables’ impact on property value over the neighborhood variables. This model could serve as a starting guidance tool for valuers, brokers, property agents, planners, researchers and other parties involved in the real estate & infrastructure sector to estimate property value that is highly based on transport variables.
item: Conference-Full-text
Analyzing the combined influence of accessibility and capacity of roads on urban density, land use mix and vitality
(Sri Lanka Society of Transport and Logistics, 2022-08) Dilrukshi, DMVA; Jayasinghe, A; Perera, N; Thibbotuwawa, A
Research focuses on analyzing the factors behind the change of urban form and its relationships. The main four urban form elements are recognized as Road network, land use mix, density and vitality based on natural movement and Transport land use feedback theory. A Road network is a combination of accessibility and capacity of the road, which can be referred as topological and mobility characteristics. Planners have identified theories and relationships, but never captured the combined influence of topological and mobility parameters of the road networks. It is required to analyze and quantify the Combined Influence of Accessibility and Capacity of Roads on Land Use Mix, Urban Density, and Vitality to identify the behavior of the urban form. This research was conducted in Colombo, Kurunagala, and Mawanlla. Results reveal the combined influence of accessibility and Capacity of roads to change land use, density and vitality. MATLAB 3D graphs, SPSS regression correlation analysis have been used to model real ground data. Cities have been tested for Accessibility and Capacity of road parameters. The study has recognized that the influence of accessibility varies from 50% - to 60% and the influence of the Capacity of Roads varies from 30% – to 45%. The study can be used for local and urban planning and will be a guide for preparing future plans and regulations.
item: Conference-Full-text
Perception of safety and vulnerability to disease of bus passengers in Kandy, Sri Lanka
(Sri Lanka Society of Transport and Logistics, 2022-08) De Silva, MM; Sehan, T; Kumarage, AS; Rathnayake, B; Perera, N; Thibbotuwawa, A
The public transport sector in Sri Lanka lacks up to date guidelines and an effective communication mechanism to enhance passenger health safeguards, reduce vulnerability to disease and ensure overall safety and security in travel. This study investigates perception of bus passengers on (a) safety, (b) health and hygiene facilitates made available when choosing to travel by bus. A total of 96 passenger responses were collected between 10th to 12th April 2021 at bus terminals in Kandy, Sri Lanka, including personal profiles as well as safety perceptions, including potential exposure to COVID-19. Quantitative methods analyzed the sample responses. With respect to health and hygiene, it was observed that 68% of the respondents felt unsafe from diseases when travelling on a bus, but only 29% reported feeling unsafe inside a terminal. The analysis further reveals that the Sri Lankan public transport has failed to meet passenger expectations of measures taken against the COVID-19 pandemic. Furthermore, more than 80% of the respondents agreed to pay a 10% premium fare for bus services having improved security, health, and hygiene features. It was also found that 90% of the bus passengers in the Kandy district have accessibility to a mobile phone for use of IT-based interventions and improved communications. These results would be useful in understanding the potential of implementing a technology solution when perceiving it as an immediate requirement.
item: Conference-Full-text
Development of a microscopic traffic simulation model for Galle road, Colombo
(Sri Lanka Society of Transport and Logistics, 2022-08) Jayasinghe, T; Sivakumar, T; Kumarage, AS; Perera, N; Thibbotuwawa, A
This research attempts to build a microscopic traffic simulation model for a 17km road section in the Galle Road corridor in Colombo, Sri Lanka. The simulation was developed by utilizing existing traffic counts collected at multiple intersections. The developed model is validated with actual hourly traffic speeds on the corridor. This simulation platform can be used to evaluate different traffic management interventions.
item: Conference-Full-text
Determining reliable section-wise bus travel times using gps data: a case study of Kandy city
(Sri Lanka Society of Transport and Logistics, 2022-08) Ubayasekara, P; Dhananjaya, D; Kumarage, AS; Perera, N; Thibbotuwawa, A
Reforming bus operations in Kandy City is a part of the ongoing Strategic City Development Project. This study carries out under the GPS data analysis of the Kandy Bus Reforms Project (KBRP). The GPS data consists of device id number, device time, GPS coordinates, and bus speed at that moment. Capturing bus trips of selected bus routes, obtaining arrival times, dwell times, and departure times from waypoints, performing a summary of monthly bus trips, and providing reliable bus travel times to the passengers in different periods are the main objectives of this study. The data cleaning, reading, and analysis are executed using Python programming language with several data manipulating libraries. The initial study has done for Kandy – Amunugama route with the GPS data collected for 2 months.
item: Conference-Full-text
Microscopic simulation of parking violations in curbside with-flow bus priority lanes using sumo traffic control interface (traci)
(Sri Lanka Society of Transport and Logistics, 2022-08) Samarakoon, GS; Sivakumar, T; Perera, N; Thibbotuwawa, A
This study is focused on developing a methodology for microscopic simulation of parking violation behaviours in Bus Priority Lanes (BPLs) to understand the impact of frequency and duration of such violations on their performance. Parking violations were simulated in SUMO by a process that automates vehicle insertion and the act of performing the violations, incorporating the randomness of violation position and time as observed in real-world parking violations. The advantages of the developed methodology were its efficiency by automation of scenario and output generation and its ability to be easily adapted to other networks.
item: Conference-Full-text
Investigation of tod-ness of small and medium towns in Sri Lanka
(Sri Lanka Society of Transport and Logistics, 2022-08) Wanigasekara, GVTP; Mahanama, PKS; Jayasinghe, AB; Perera, N; Thibbotuwawa, A
Transit Oriented Development (TOD) has been a promising planning concept which strengthen the land use and transport integration for a sustainable development. As per the concept benefits of TOD are manifold but it may differ for each stakeholder in planning. However, several studies related TOD concept further reveal that there is lacking part in spatially evaluation process of TOD concept. Addition to that there is no generally accepted process for or set of study and identify the pattern of TOD ness. This issue directly impacts on planners, decision makers and practitioners while getting the perception of existing physical and functional conditions of areas which they are planning to develop, upgrade or maintain. In the way of decision-making process in planning to encourage transit-oriented development(s) in a place, it is essential terminology to have a well direct analytical process to study the current status of TOD ness with related factors at a location and in an area. By based on several frameworks there are several studies have done in global context. But there is nothing can identify any related study for investigating TOD ness in Sri Lankan city background.
item: Conference-Full-text
Land-use change dynamics and automated feature extraction using high-resolution satellite imagery
(Sri Lanka Society of Transport and Logistics, 2022-08) Dey, M; Prakash, PS; Chandrashekar, CM; Aithal, BH; Perera, N; Thibbotuwawa, A
The mapping of urban landscapes is a challenging task due to their dense and diverse characteristics. The changing urban environment with developing infrastructure demands constant updates and accurate extraction techniques. Recent advancement in geospatial technology has led to the capture of high-resolution data and its analysis at a finer scale. However, a sustainable development framework necessitates the understanding of spatial patterns incorporating vertical and horizontal components of the built-up volume. This study aims to understand the changing landscape at the pixel level by analysing features along with their volumetric expansion. The findings highlight that Bangalore city’s urban growth has shown increment over the period with volumetric expansion in all parts of the city based on events of changing demand and growth. The evaluation metrics indicate that the model can be generalised for any geographical location as well as to different sensor type images.
item: Conference-Full-text
parking demand and supply behavior of the users in a hilly terrain at Bandarawela city
(Sri Lanka Society of Transport and Logistics, 2022-08) Deivendra, HT; Dalpethado, G; Liyanage, TU; Perera, N; Thibbotuwawa, A
Parking facilities can serve an important role in a city center. Parking demand and supply attribute balance is contributing to the proper traffic management in a city. Bandarawela is a one of major cities in Badulla district with higher topographic variability as the specific attributes to this city. This study has identified several issues that are inheriting to the mountainous topography. Determining the balance of parking demand and supply, most using vehicular modes, type of parking, analyzing the attributes of parking that can be used for future developments in hilly terrain. Series of analysis using statistical analysis techniques is included as the methodology for data analysis. It is expected that the outcomes and recommendations will be useful to predict parking demand and supply behavior of the users in a hilly terrain.
item: Conference-Full-text
The unsustainable spatial characters of new urban areas in Hanoi, Vietnam
(Sri Lanka Society of Transport and Logistics, 2022-08) Thai, MHH; Perera, N; Thibbotuwawa, A
This research investigates the spatial characters of New Urban Areas (NUAs) in Hanoi, Vietnam, by employing space syntax and urban morphological approaches. Hanoi grows from a monocentric city to an ‘amoeba’-like urban form in its periphery, where modern formally planned neighbourhoods exist next to, or even mix with urbanised villages and agricultural lands. At the city scale, this paper examines the spatial configuration of street networks in Hanoi, and the integration of these NUAs into the system. It compares the configuration of the NUAs with their surrounding neighbourhoods that have been spontaneously developed. At the neighbourhood level, the analysis explains the attractiveness and performance of streets, movements of pedestrians, motorbikes and cars, maps and compares the morphological features of various NUAs in Hanoi. Findings reveal that these NUAs are poorly integrated into the spatial network of the city. They underscore the private vehicular favoured urban environments of these NUAs, uncomfortable pedestrian movements, resulting in less-vibrant street life. This research informs practices, including urban planning, design, development and management, on the significance of top-down and bottom-up forces in shaping urban centres and the importance of street network in promoting healthy and sustainable lifestyles.
item: Conference-Full-text
Benefits realisation of robotic process automation (rpa) initiatives in supply chains
(Sri Lanka Society of Transport and Logistics, 2022-08) Piyatilake, A; Vitharanage, ID; De Silva, M; Thibbotuwawa, A; Perera, N; Thibbotuwawa, A
Robotic Process Automation (RPA) is becoming an integral part of today’s businesses that compete in more dynamic business environments as it helps to automate rule-based, repetitive tasks. However, it is necessary to identify benefits realisation key success factors (BRKSFs) applicable for RPA initiatives, given that most of the initiatives are failures. This research aims to identify BRKSFs and hierarchical relationship between BRKSFs relevant to RPA initiatives. Research findings are conveyed as a model which shows the hierarchical relationship. According to the findings, having a clear, well-defined, and immutable process is the most significant BRKSF as its driving power over the other factors is high. Overall, the findings of this study will help researchers and industry practitioners to identify a priority order between RPA BRKSFs.
item: Conference-Full-text
Assessing the impact of lean and agile supply chain strategies on effective covid-19-mass vaccinations
(Sri Lanka Society of Transport and Logistics, 2022-08) Gomes, K; Perera, HN; Perera, N; Thibbotuwawa, A
A properly designed vaccine supply chain that uses suitable supply chain strategies can facilitate an effective mass vaccination that minimises COVID-19 infections and deaths. This study assesses the impact of two supply chain strategies which are Lean supply chain strategy and Agile supply chain strategy on effective mass vaccination using a two-stage approach. In the initial stage, we developed an optimal vaccine distribution network under both Lean and Agile supply chain strategies separately, for a selected scenario in Colombo, Sri Lanka. In the second stage, we have developed a Susceptible-Exposed-Infected-Recovered (SEIR) model for COVID-19 which reflects the impact on infections and deaths when using the two different supply chain strategies. Results of this study reflect that a higher percentage of lead time saving can be achieved when using the Agile supply chain strategy. Moreover, when using Agile strategy, a considerable reduction of infections and deaths can be expected for the considered scenario despite a cost accumulation of approximately 32%.
item: Conference-Full-text
Identifying best practices in supplier selection using a comprehensive benchmarking framework
(Sri Lanka Society of Transport and Logistics, 2022-08) Dharmadasa, N; De Silva, MM; Thibbotuwawa, A; Perera, N; Thibbotuwawa, A
Supplier selection is highly industry specific with the industry specific regulations and requirements, making gauging the quality of the process difficult. This arises the requirement for industry practitioners and quality institutes to benchmark the Supplier Selection Process (SSP) to identify where the process adapted currently stands and what are the good practices within the industry. To cater to that need, this study has three objectives: to identify current supplier selection practices adopted by Sri Lankan practitioners, to derive a base benchmarking framework to assess the SSP of a firm and to identify best practices adapted by industry practitioners using the framework. This is achieved through a two-phase methodology: framework derivation and framework validation. From the validation phase it was discovered that employing such benchmarking framework creates opportunities for firms to improve existing SSP.
item: Conference-Full-text
Transperancy and authenticity of tailor made ecotourist sites and block chain innovation to upgrade the value chain
(Sri Lanka Society of Transport and Logistics, 2022-08) Seenapatabendige, KB; Perera, N; Thibbotuwawa, A
Sri Lanka, The island is renowned for its rich diversity of natural resources, cultures, traditions and especially the great hospitality of the people. Eco-tourism, one of the promising sub sector of the tourism industry which claims for significant returns to the domestic economy essentially need governance mechanism to cater the demands of diverse global customers while preserving the nature and cultural heritage. This article focused to find out the transparency in tailor made eco tourism value chain, find out the problems and issues encounter by the travelers and propose block chain as smart innovative tool to upgrade transparency authenticity and traceability of eco tourism value chain. Primary data, both qualitative and quantitative, collected through online data collection tools and in-depth interviews via telephone. First, registered eco tourism destinations were considered for the study and the sample composed of 35 wild life, 17 adventure, and 21 agro tourism locations. Mode of reservation, mode of payment, mode of prior experience, facility available, ratings and customer views were researched. Service providers facilitate a variety of nature, eco and adventure based activities across the island with experience guides and facilitators. About 12-20 tailor made packages offered by the service providers and accommodation, food, transport and other logistics vary widely. Individual service providing agencies operate separately, poor fragile networks among value chain members, information asymmetry, logistic issues in remote destinations, and gap between standard and customize site arrangements were recorded as common problems. Service providers are expecting convenient, economical and trust worthy network which will bridge the existing operational barriers of the sector. Smooth chain connection and decentralize chain management of block chain will help to improve the chain transparency and authenticity while enhancing tourism experience, rewarding sustainable behavior, ensuring benefits for local communities, and minimizing privacy concerns.
item: Conference-Full-text
Challenges for circular economy adoption in sustainable food supply chains
(Sri Lanka Society of Transport and Logistics, 2022-08) Pannila, N; Jayalath, MM; Thibbotuwawa, A; Perera, N; Thibbotuwawa, A
This study seeks to identify challenging factors to the adoption of the circular economy in the food supply chain. A total of 17 challenging factors have been identified via a systematic literature review. The challenging factors were grouped into 6 categories: economic, social, institutional, technological and informational, supply chain, and organizational. To prioritize the challenging factors based on literature importance, a literature frequency analysis method was utilized. The possibility of misestimations in challenges ranking that result from frequency analysis is eliminated by employing an article-level research citation metric of Field-Weighted Citation Impact. The findings reveal that the three most critical challenges to adopting circular economy in the food supply chain are cost efficiency consideration, less enforcement of legislation and regulations, and lack of long-term shared vision among stakeholders. The findings will help managers, decision-makers, practitioners, and governments to formulate policies and strategies to effectively implement circular practices in the food industry.
item: Conference-Full-text
Influencing factors for demand disruptions of fast-moving consumer goods during a pandemic in Sri Lanka
(Sri Lanka Society of Transport and Logistics, 2022-08) Pathirawasam, D; Hewage, U; Perera, N; Thibbotuwawa, A
Not only Covid 19 pandemic but other new pandemics will also emerge in the future. Therefore, understanding the reasons for the disruption of consumer demand during a pandemic is critical for a speedy recovery of the market. Thus, the study fills the gap in the literature on demand disruptions during a pandemic to fast-moving consumer goods (FMCG) under the category of ‘personal care’ and ‘home care’ in the Sri Lankan context. The paired t-test output emphasizes that there is a significant impact on the consumption of ‘personal care’ and ‘home care’ products during the pandemic period compared to the same days in the pre-pandemic. Therefore, influencing factors to a demand disruption of FMCG during a pandemic in a global context are searched through a literature survey, validated to the Sri Lankan context ‘personal care’ and ‘home care’ category with the reviews from 12 managerial level experts in 4 leading FMCG companies and finally quantified variables using Pearson correlation and Kendall’s tau-b tests.
item: Conference-Full-text
Transparency and authenticity of high value sea food: case study in lobster supply chain of south coast of Sri-Lanka
(Sri Lanka Society of Transport and Logistics, 2022-08) Bandara, AMSMRSG; De Silva, DAM; Perera, N; Thibbotuwawa, A
The objectives of this study are to find out the status of the transparency and the authenticity of the lobster value chain and to find out the impact of logistics supplies on value chain transparency and to propose a smart value chain to bridge the gaps in transparency and authenticity. The study was conducted in the first quarter of 2022 on the southern coast of Sri Lanka covering the lobster fisheries in Matara and Galle districts. The snowball sampling technique was instrumental in gathering the sample. Primary data for the study was collected through focus group discussions, and non-participatory observation. Data had been collected from 26 supply chain actors (20 fishermen, 05 collectors, and 01 agent of exporter). Results revealed that the exporter studied in the supply chain was a price setter while the fishermen at the initial node of the supply chain were the price takers. The fishermen lacked information connectivity (i.e., market price for local market and export) among the lobster catching sites of the island making fishermen poor bargainers. The supply chain lacks a two-way information flow from one node to the other. Fragile supply chain and information asymmetry badly affect ethical income distribution along the chain. Poor postharvest handling and safety and quality management reduce the returns to upstream actors. Lack of transparency on fishing grounds, fishermen, and logistic suppliers limits the entry point of high-end markets on one hand. On the other hand, this has positively affected stock depletion. Lack of supply chain transparency and authenticity encourages Illegal Unreported Unregulated (IUU) lobster fishing.
item: Conference-Full-text
Food logistics: a study on lobster fisheries, Sri Lanka
(Sri Lanka Society of Transport and Logistics, 2022-08) Basnayake, RL; De Silva, DAM; Ekanayake, S; Liyanage, U; Perera, N; Thibbotuwawa, A
Food logistics is playing a vital role because of the importance of on-time delivery with minimum or no food waste since the majority of food products have a very short shelf-life. Lobster fishery is one of the most economically important marine coastal fishing activities, since it is a good source of foreign exchange. This study carried to studying of the current logistics practices in lobster fisheries, to identify the loopholes in the current logistics system and to recommend strategies to improve the system. Interviewer administrated questionnaires, in-depth interviews were facilitated to collect required data from 30 fishermen, 05 collectors and 03 exporters. The results revealed that, the supply chain of lobsters is consists with fishermen, collector, distributor and exporter or local hotels and the inbound freight management is in very poor level with zero traceability from upstream to downstream. while outbound logistics are more concerning on keeping product quality since, the end product is exporting as live animals. Introducing proper cages to handle the animals, training on importance of proper inbound logistics management and further, precise planning, execution, and efficient monitoring to effectively manage the movement of lobster from sea to plate with minimum wastage.

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