Cold Chain Logistics Routing for Small and medium Enterprises in Nakhon Sri Thammarat

Abstract

This research aims to investigate the seafood distribution model within Nakhon Si Thammarat Province and to develop an appropriate route optimization model for temperature-controlled seafood transportation services. The study focuses on small and medium-sized enterprises (SMEs) engaged in temperature-controlled logistics. Operational data were collected from transportation personnel over an eight-month period, from May to December, emphasizing routes with the highest transportation costs among 17 delivery locations. The objective was to analyze operational challenges and identify more efficient transportation strategies. Which delivers seafood to eight districts: Mueang Nakhon Si Thammarat, Lansaka, Phrom Khiri, Phra Phrom, Chian Yai, Chawang, Chaloem Phra Kiat, and Ron Phibun. These were categorized into eight distinct delivery routes. Prior to the implementation of the optimization model, the total transportation cost amounted to 99,600 baht. By applying the VRP Spreadsheet Solver, which was identified as the most suitable tool for route optimization, the fuel cost over the same period was reduced to 71,093.23 baht—resulting in a cost saving of 28,506.77 baht, or 28.62%. These findings demonstrate the potential of route optimization models in significantly reducing operational costs for SMEs in the cold chain logistics sector.