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All Journal JISO : Journal of Industrial and Systems Optimization Jurnal Sosial dan Teknologi Jurnal Teknologi dan Manajemen
Baihaqy, Ahmed Raecky
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Humanities Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Transportation

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PERBAIKAN KINERJA TURNAROUND OPERATIONS DI BANDARA DENGAN MEMPERTIMBANGKAN KETIDAKPASTIAN CUACA Baihaqy, Ahmed Raecky; Siswanto, Nurhadi; Latiffianti, Effi
JISO : Journal of Industrial and Systems Optimization Vol. 6 No. 2 (2023): Desember 2023
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v6i2.131-139

Abstract

Aviation has become an important aspect in human life thanks to its ability to transport people to faraway places with short duration and relatively low cost. However, aviation activities are highly influenced by uncertain events such as weather conditions. One of the activities that is impacted by these 2 events is turnaround operations. Turnaround operations is an activity performed to prepare aircraft for the next flight. This research aims to evaluate and improve turnaround operations performance both from relative duration tardiness (?T%) and on-time performance (OTP) using discrete-event simulation approach. Results obtained from simulation model show that the value of ?T% is 43.48% and OTP of 54.20%. Improvement scenarios are developed by arranging the new ground support staff (GSS) schedule and allocation as well as adding GSS at a certain rate. Scenario of implementing new schedule and allocation and adding GSS with rate of 50% comes out as the selected scenario which could improve ?T% and OTP performance to become 33.35% and 54.91% respectively. Aviasi telah menjadi aspek yang penting bagi manusia karena kemampuannya untuk membawa manusia ke tempat yang jauh dengan durasi singkat dan biaya yang relatif rendah. Akan tetapi, kegiatan aviasi sangat dipengaruhi oleh kejadian yang tak pasti seperti kondisi cuaca. Salah satu kegiatan yang terdampak oleh kedua kejadian ini adalah turnaround operations. Turnaround operations merupakan kegiatan yang dilakukan untuk mempersiapkan pesawat untuk penerbangan selanjutnya. Penelitian ini bertujuan untuk mengevaluasi dan memperbaiki kinerja turnaround operations baik dari sisi durasi keterlambatan relatif (?T%) maupun on-time performance (OTP) menggunakan pendekatan simulasi kejadian diskrit. Hasil yang diperoleh dari model simulasi menunjukkan bahwa nilai ?T% sebesar 43.48% dan OTP sebesar 54.20%. Skenario perbaikan dikembangkan dengan menyusun penjadwalan dan alokasi ground support staff (GSS) yang baru dan penambahan GSS dengan tingkat tertentu. Skenario dengan menerapkan jadwal dan alokasi baru serta penambahan GSS sebesar 50% keluar sebagai skenario terpilih yang mampu memperbaiki nilai ?T% dan OTP menjadi 33.35% dan 54.91% secara berturut-turut. 
ANALISIS BOTTLENECK DAN PENINGKATAN KINERJA LINI PRODUKSI PADA INDUSTRI MAKANAN DENGAN PENDEKATAN SIMULASI Baihaqy, Ahmed Raecky; Muhammadi, Hamdan; Siswanto, Nurhadi
JISO : Journal of Industrial and Systems Optimization Vol. 8 No. 1 (2025): Juni 2025
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v8i1.1-9

Abstract

ABSTRAK Sebuah lini produksi dirancang untuk memastikan bahwa aktivitas produksi berlangsung lancar dengan output maksimal. Namun, kelancaran lini produksi dapat terganggu jika terjadi bottleneck dalam aktivitas atau proses tertentu, yang dapat menurunkan tingkat produksi secara signifikan. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis bottleneck dalam lini produksi industri makanan menggunakan pendekatan simulasi. Hasil simulasi kondisi eksisting menunjukkan bahwa proses packing menjadi bottleneck utama. Melalui skenario perbaikan berupa kombinasi penugasan mesin manual packing yang lebih fleksibel dan penambahan konveyor, simulasi membuktikan bahwa throughput produksi per jam dapat meningkat sebesar 8,6%. ABSTRACT A production line is designed to ensure that production activities run smoothly and achieve maximum output. However, its smooth operation can be disrupted if a bottleneck occurs in certain activities or processes, significantly reducing the production rate. This research aims to identify and analyze bottlenecks within a food industry production line using a simulation-based approach. The simulation results of the existing conditions indicate that the packing process is the primary bottleneck. Through an improvement scenario involving a combination of more flexible manual packing machine assignments and the addition of conveyors, the simulation demonstrated that hourly production throughput could increase by 8.6%.  
Menakar Efisiensi Digital: Studi LCA atas Perubahan Sistem Layanan Administrasi Kependudukan. Studi Kasus: Layanan Pindah Keluar oleh DISPENDUKCAPIL Surabaya Dimyati, Aufar Fikri; Baihaqy, Ahmed Raecky
Jurnal Sosial Teknologi Vol. 5 No. 7 (2025): Jurnal Sosial dan Teknologi
Publisher : CV. Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jurnalsostech.v5i7.32336

Abstract

Digital transformation in public services has become a key strategy to improve efficiency, accessibility, and environmental sustainability. The Government of Indonesia has designated the acceleration of public service digitalization as a national priority to realize inclusive, transparent, and environmentally friendly services exemplified by the City of Surabaya, which has implemented massive digitalization efforts since 2019. This study evaluates the environmental impact of digitalizing the “Pindah Keluar” (Out-Migration) administrative service, one of the services provided by the Department of Population and Civil Registration (DISPENDUKCAPIL) in Surabaya, using a Life Cycle Assessment (LCA) approach. The study compares four service system phases: the manual system (SIAK), LAMPID, KLAMPID, KLAMPID during the COVID period, and the fully digital service (KLAMPID Online). The LCA results show that digitalization significantly reduces paper consumption and transportation-related emissions, with the total environmental impact score decreasing from 87.83 mPt in the manual system to 32.67 mPt in the fully digital system. However, digitalization also leads to increased electricity consumption and reliance on digital infrastructure, indicating a shift in environmental burden from the community (in the form of physical activities such as paper use and transportation) to the service provider institution (in the form of energy consumption by digital infrastructure). These findings highlight that achieving sustainable digitalization, from an environmental burden perspective, requires internal system efficiency and the adoption of environmentally friendly energy sources to minimize the total ecological footprint generated by public service providers.
Optimizing the Number of Internal Trucks Based on Berth Allocation and Quay Crane Assignment at a Container Terminal Lutfianto, Muchammad Alfan; Siswanto, Nurhadi; Baihaqy, Ahmed Raecky
Jurnal Teknologi dan Manajemen Vol 7, No 1 (2026): January (In Progress)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat ITATS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jtm.2026.v7i1.8048

Abstract

The increase in international trade and production automation has led to a global container traffic surge at ports, including Terminal Peti Kemas X, one of Surabaya's main domestic terminals. This situation requires more effective and efficient management of handling equipment, particularly internal trucks that link the dock and the stacking yard, to avoid congestion and operational delays. However, the loading and unloading performance and vessel service at this terminal are not optimal due to fluctuating container flows and suboptimal equipment allocation, particularly for quay cranes (QC) and internal trucks (IT). This study aims to optimize the number of internal trucks based on quay allocation and quay crane assignment tailored to the volume of containers being loaded and unloaded, using discrete event simulation as the primary approach. Performance is measured using two leading indicators: box/crane/hours (BCH) and vessel turnaround time (TRT). Under existing conditions, the BCH and TRT values are 23.43 boxes and 15.24 hours, respectively. Several improvement scenarios were developed by varying the number or ratio of quay crane and internal truck assignments, without adding new equipment. The scenario analysis found that the best scenario has a container volume configuration of 150 boxes with 2 QC and 7 IT assignments, while a container volume of 150 boxes has 2 QC and 11 IT assignments. This configuration can increase BCH to 25.33 boxes and reduce TRT to 11.82 hours. These findings indicate that this approach is practical in significantly improving system performance.
Co-Authors Aufar Fikri Dimyati Effi Latiffianti Lutfianto, Muchammad Alfan Muhammadi, Hamdan Nurhadi Siswanto