Measurement of Mental Workload with The NASA-TLX Method on Employees of PT XYZ
Abstract
PT XYZ is the largest maritime industry in Indonesia. The company focuses on producing ships and repairing ships both domestically and abroad. Human resources are the most important aspect in determining the success of a company. To increase employee work productivity, companies must pay attention to the physical workload and mental workload felt by employees. Uneven workload can cause complaints, so that productivity decreases and gets less than optimal results. Therefore, a mental workload measurement was conducted to determine the level of mental workload of employees using the National Aeronautics and space Administration Task load Index (NASA-TLX) method. The NASA-TLX questionnaire was distributed to 8 workers of the ISO, Standardisation and Calibration Department. Based on the highest WWL average value of 81.3 with a very high category. To improve the mental workload, the company is advised to evaluate labour needs in other departments or divisions to support additional employees through job rotation, provide regular job training to improve employee skills and speed in completing work, provide a storage area for tools to be calibrated so that employees are not disturbed by tools that accumulate in the workspace, procure new tools to support the increasing workload, conduct monitoring and job evaluation.
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