Analisis produktivitas alat berat pada proyek pembangunan relokasi jalan nasional Ruas Sui Duri – Mempawah

This study analyzes the productivity of heavy equipment used in the National Road Relocation Project of the Sei Duri–Mempawah section, a strategic infrastructure project with an effective road length of 5.6 km and a total embankment volume of 213,849.35 m³. The research addresses discrepancies between standard theoretical productivity and actual field performance that may affect project efficiency in terms of time and cost. A descriptive quantitative approach was applied by evaluating the productivity of an excavator and 8 m³ capacity dump trucks based on calculations derived from Indonesian Ministry of Public Works and Housing regulations and empirical data obtained from ten days of field observations. The results show that the standard productivity of the excavator is 147.81 m³/hour, while the actual field productivity averages 140.69 m³/hour. For dump trucks, standard productivity reaches 12.11 m³/hour, whereas actual productivity averages 10.73 m³/hour. Furthermore, three alternative equipment combination scenarios were analyzed. The existing condition, consisting of 3 excavators and 50 dump trucks, results in a system productivity of 536.30 m³/hour with a project duration of 71 days. The optimal alternative involves the use of 4 excavators and 50 dump trucks, increasing system productivity to 562.40 m³/hour and reducing project duration to 56 days, with a total operational cost of IDR 2.56 billion. These findings demonstrate that balancing loading and hauling equipment capacity based on actual field productivity data significantly improves time efficiency with a relatively small increase in operational cost, thereby supporting more effective earthwork management in large-scale road construction projects.