Anam, Mirza Maulana (2026) Analisis Risiko Tubrukan Berbasis IWRAP dan Penjadwalan Pengapalan Menggunakan Simulasi Diskrit Jalur Pelayaran Laut Sungai. Other thesis, Institiut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini membahas pengiriman material proyek menuju lokasi studi yang berada pada jalur pelayaran laut sungai dengan pengaruh pasang surut dan keterbatasan fasilitas sandar. Kondisi tersebut menyebabkan pergerakan kapal harus mempertimbangkan tidal window, jam operasi, serta ketersediaan fasilitas beaching dan longside. Selain itu, penambahan kapal proyek pada alur pelayaran Teluk Bintuni berpotensi meningkatkan frekuensi tubrukan dengan traffic eksisting. Penelitian ini menggunakan IWRAP untuk menganalisis frekuensi tubrukan pada kondisi traffic eksisting, kondisi proyeksi peningkatan pergerakan LNG Carrier, dan kondisi setelah penambahan traffic kapal proyek dari skenario terpilih. Selanjutnya, simulasi kejadian diskrit (DES) digunakan untuk membandingkan kinerja sepuluh skenario pengiriman berdasarkan dua rute, yaitu Sorong–Nagote dan Kokas–Nagote, dengan variasi armada All LCT, All Barge, LCT:Barge 50:50, 60:40, dan 70:30. Indikator yang dianalisis meliputi total waktu pengiriman, tidal/operation waiting time, jetty queue waiting time, dan ketercapaian pengiriman. Hasil IWRAP menunjukkan bahwa total frekuensi tubrukan meningkat dari 0,0001974 incidents/year pada kondisi traffic eksisting menjadi 0,0002663 incidents/year pada kondisi proyeksi. Hasil simulasi DES menunjukkan bahwa skenario Kokas–Nagote dengan komposisi LCT:Barge 70:30 menghasilkan total waktu pengiriman paling rendah sebesar 260,78 hari, total tidal/operation waiting time sebesar 0,18 hari, total jetty queue waiting time sebesar 81,70 hari, dan maksimum jetty queue waiting time sebesar 6,69 hari. Setelah traffic kapal proyek dari skenario terpilih ditambahkan ke model IWRAP, total frekuensi tubrukan meningkat menjadi 0,0003209 incidents/year, dengan konflik dominan berupa head-on sebesar 0,0001538 incidents/year. Hasil tersebut menunjukkan bahwa skenario Kokas Nagote LCT:Barge 70:30 memberikan kinerja operasional terbaik berdasarkan total waktu pengiriman, sedangkan penambahan traffic kapal proyek meningkatkan frekuensi tubrukan pada jalur pelayaran yang dimodelkan.
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This study examines the delivery of project materials to a study site located along a sea–river waterway affected by tidal variation and limited berthing facilities. These conditions require vessel movements to consider tidal windows, operating hours, and the availability of beaching and longside facilities. In addition, the addition of project vessels to the Teluk Bintuni waterway may increase collision frequency with existing traffic. This study applies IWRAP to analyze collision frequency under existing traffic conditions, projected traffic conditions associated with increased LNG Carrier movements, and conditions after the addition of project vessel traffic from the selected delivery scenario. Discrete Event Simulation (DES) is then used to compare the performance of ten delivery scenarios based on two routes, namely Sorong–Nagote and Kokas–Nagote, with fleet compositions consisting of All LCT, All Barge, LCT:Barge 50:50, 60:40, and 70:30. The performance indicators analyzed include total delivery time, tidal/operation waiting time, jetty queue waiting time, and delivery completion. The IWRAP results show that the total collision frequency increases from 0.0001974 incidents/year under existing traffic conditions to 0.0002663 incidents/year under projected traffic conditions. The DES results show that the Kokas–Nagote route with an LCT:Barge composition of 70:30 provides the lowest total delivery time of 260.78 days, with a total tidal/operation waiting time of 0.18 days, a total jetty queue waiting time of 81.70 days, and a maximum jetty queue waiting time of 6.69 days. After the project vessel traffic from the selected scenario is added to the IWRAP model, the total collision frequency increases to 0.0003209 incidents/year, with head-on collision as the dominant conflict type at 0.0001538 incidents/year. These results indicate that the Kokas–Nagote route with an LCT:Barge composition of 70:30 provides the best operational performance based on total delivery time, while the addition of project vessel traffic increases the collision frequency along the modeled waterway.
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