ANALYSIS OF MENTAL WORKLOAD OF OUTBOUND OPERATIONAL TEAM WITH WORK TARGET USING NASA TLX AND RSME METHODS IN PT PN

Abstract

The automotive industry, including in Indonesia, has experienced rapid growth, driving companies to continuously innovate to maintain competitiveness. PT PN, a logistics company specializing in automotive distribution, faces challenges related to high defect rates during loading and unloading processes, such as scratches, dents, and waves on vehicle bodies. These defects lead to increased operational costs, reduced time efficiency, and lower customer satisfaction. This study aims to identify the root causes of product defects, analyze workers' physical and mental workload using the NASA-TLX method, and propose solutions to enhance operational performance. Data were collected through field observations, interviews, and questionnaires involving 15 employees in the outbound department. The results indicate that workers' mental and physical workloads are classified as "high," significantly contributing to product defects. Repair costs due to product defects amounted to IDR 125,850,000 during the June–October 2024 period. The proposed recommendations include stress management training, workload distribution optimization, improved safety procedures, and enhancement of supporting facilities. Implementing these strategies is expected to reduce defect rates, improve operational efficiency, and help achieve the zero-defect target, thereby strengthening the company's reputation in automotive logistics