Maritime transportation plays a strategic role in supporting the international logistics system, especially for major trade routes such as Indonesia–Singapore. This study aims to analyze the efficiency of maritime freight transportation with a case study at Tanjung Priok Port as the main port in Indonesia. The analysis focuses on several efficiency indicators, namely operational costs, delivery time, departure frequency, and container utilization rates. The research method uses a quantitative approach with secondary data analysis from shipping operators and port performance reports for the 2021–2024 period. The results show that transportation efficiency on the Tanjung Priok–Singapore route is influenced by cargo density, loading and unloading service speed, and the adoption of digital technology in logistics management systems. Although transit times are relatively stable, delays caused by ship queues and documentation processes remain an obstacle. Recommendations are directed at optimizing departure schedules, digitizing port processes, and improving coordination between logistics agencies to support sustainable efficiency.
Rizqi et al. (2025) studied this question.