The Vehicle Routing Problem (VRP) represents a thoroughly investigated domain within operations research, yielding substantial cost savings in global transportation. fundamental objective of the VRP is to determine optimal route plan that minimizes overall distance traveled. This study employs address challenge distributing fresh agricultural products retail chains. It introduces an integrated bi-objective model concurrently optimizes resource allocation, order scheduling, and planning....

Today, there is a tendency towards promoting locally produced perishable products along the supply chain. Due to short shelf-life, it necessary optimize collecting goods reduce wastage. The research attempt solve problem where internal and hired trucks are used collect goods. proposed Vehicle Routing Problem (VRP) different from classical VRP comprises both close open routes. known as Close-Open Mixed (COMVRP). model uses fleets with heterogeneous capacities. start multiple centres return...

Purpose This study explores digital transformation in the tea supply chain within developing economies, with a focus on smallholder producers Sri Lanka. Tea is one of most widely consumed beverages world. Among producers, account for substantial portion total production several countries. Mobile phones play significant role providing access to crucial agricultural information, markets and financial services. Design/methodology/approach adopts deductive approach, analysing mobile phone...

E-commerce supply chains are becoming more complex due to increasing global sales, and product returns from these sales alarmingly high, highlighting the importance of effective return management. This paper proposes a reverse logistics network model optimize The proposed applies ward-like hierarchical clustering with geographical constraints detect tendencies utilizes mixed integer linear programming network. decision variables include selection Initial Collection Centers (ICCs), allocation...

In recent times, there has been a notable increase in interest surrounding the integration of Un-manned Aerial Vehicle (UAV) technology and vehicle routing problems (VRP) for package delivery purposes. While existing studies have explored various types deliveries utilizing VRP, limited attention given to on-demand food delivery. This study aims develop VRP model that incorporates practical constraints such as payload capacity maximum flying range, with primary objective minimizing travel...

Small and medium-sized enterprises (SMEs) are the cornerstone of global economic growth that is sustainable. Technological advancement, market pressure, Covid pandemic accelerated SMEs' digital transformation. However, lower adaptability rate technologies a widespread issue around world. Before implementing strategy, it critical to conduct maturity assessment determine current state business. There lack review articles regarding SMEs. Through systematic literature search an author keyword...

The advances in additive manufacturing (AM) help the recycling, redesign, and reuse of waste plastics, enabling circular economy supply chains business ecosystems. Distributed Recycling through Additive Manufacturing (DRAM) is a technique for recycling plastics using mechanical processes AM. Even though these integrated concepts enable new path to recycle there are numerous barriers their implementation, especially developing economies. ten implementing DRAM plastic were finalized use...

Planning and operating retail chain distribution processes is becoming more challenging, due to the increasing demand urban congestion. This research applied a Capacitated Heterogeneous Fleet Vehicle Routing Problem with Multiple Depots (CHFVRPMD) model optimize network real-world road network. The attempts obtain plan that minimizes total cost. A hybrid solution algorithm was proposed solve CHFVRPMD model. developed by combining heuristic metaheuristic methods. case study carried out...

Energy security is a critical challenge in today's world. The petroleum product supply chain highly uncertain due to geopolitical tension and inherent complexity. Sri Lankan requirement entirely relies on the global oil chain. research was planned study risk Lanka. Risk factors disruptions were identified using literature review pilot survey. expert opinion survey conducted along with probability impact analysis assess factors. It highlighted that lack of infrastructure facilities main...

The sustainable management of waste in supply chains is utmost importance, particularly the context smallholder producers. This paper aims to unveil patterns tea producers Sri Lanka by employing an integrated approach that incorporates Value Chain Mapping (VCM), lean thinking, and Interpretive Structural Modeling (ISM). study investigates complexities interdependencies within identifies key generation points factors contributing producer industry Lanka. ISM methodology facilitates...

Traffic-related analyses are essential to implementing traffic management approaches create mobility more convenient. In this context, Passenger Car Unit (PCU) values as a uniform measure of vehicles instrumental in analysis such capacity estimation, flow model development, level service determination, etc. These studies always demand recently calculated set PCU since the conditions arterials often change. for expressway and three-lane (one-way) road types have not been Sri Lankan available...

This study is focusing on identifying the potential of Unmanned Aerial Vehicle (UAV) routing for blood distribution in emergency requests Sri Lanka compared to existing transportation modes. Capacitated Routing Problem was used as methodology find optimal plan between banks directing requests. The developed UAV model tested different instances compare results. Finally, proposed process via UAVs with current objective function set up and other Key Performance Indicators (KPIs) including...