Identifying the key factors to re-design a sustainable transportation device for postmen in Sri Lanka postal department

Abstract

This study investigates the productivity challenges associated with the transportation methods currently used by postmen in the Sri Lanka Postal Department, focusing on their impact on efficiency, worker well-being, and operational sustainability. Despite evolving delivery demands, postmen continue to rely on general-purpose bicycles and motorbikes that are not optimized for postal work. These transportation methods contribute to inefficiencies, increased physical strain, and safety risks, ultimately affecting delivery speed and service reliability. Using a qualitative research approach that combines grounded theory and case study methods, this study examines key productivity-related factors in postal transportation. Data collection involved direct observation and open-ended interviews with postmasters and postmen in the Piliyandala region, a diverse postal jurisdiction in Colombo District. Findings highlight the need for an optimized transportation solution incorporating ergonomic improvements such as adjustable seating and structured storage compartments to streamline delivery processes. Additionally, integrating electric-assist technology and solar-powered charging stations is proposed to enhance efficiency and reduce operational costs. This research provides actionable insights for modernizing postal transportation, ensuring improved productivity, worker health, and sustainability within Sri Lanka’s postal services.