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All Journal Dinasti International Journal of Management Science Dinasti International Journal of Education Management and Social Science Dinasti International Journal of Digital Business Management International Journal of Advanced Multidisciplinary Jurnal Siber Transportasi dan Logistik
Marihot Simanjuntak
Sekolah Tinggi Ilmu Pelayaran, Jakarta, Indonesia
Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences Other

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The Effect of Occupational Health and Safety (OHS) Knowledge and Heavy Equipment Maintenance in Coal Bulk Carrier Loading–Unloading Operations on Hazard Control and Its Implications for Work Safety at PT Puradika Bongkar Muat Makmur, Taboneo Sea, South Kalimantan Rony Kurnia; Abdul Rachman; Marihot Simanjuntak; Susi Herawati
Dinasti International Journal of Management Science Vol. 7 No. 5 (2026): Dinasti International Journal of Management Science (May - June 2026)
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijms.v7i5.6770

Abstract

Loading and unloading activities involve a high risk of accidents, particularly in the operation of wheel loaders, bulldozers, and ship cranes, thus requiring strengthened occupational safety and health (OSH/K3) competence and optimal equipment maintenance. This study aims to examine and analyze the effect of OSH knowledge and heavy equipment maintenance for ship-based loading and unloading on hazard control and its implications for occupational safety at the work area of PT Puradika Bongkar Muat Makmur Laut Taboneo, South Kalimantan. The study employed a quantitative approach with a cross-sectional design. The population consisted of 53 wheel loader and bulldozer operators (organic employees) and 50 ship crane operators (subcontract workers), totaling 103 respondents using a total sampling technique. Data were collected through questionnaires and OSH report documentation, and analyzed using SmartPLS. The results indicate that OSH knowledge and heavy equipment maintenance have a positive and significant effect on hazard control, with equipment maintenance showing the most dominant influence. Furthermore, OSH knowledge, equipment maintenance, and hazard control have positive and significant effects on occupational safety, both directly and indirectly through hazard control as a mediating variable. These findings highlight that improved risk understanding, effective condition monitoring, and the implementation of technical controls contribute to reducing workplace accident potential in loading and unloading operations. The study recommends enhancing emergency response training through simulation-based programs, strengthening digital-based spare parts management systems, and optimizing engineering controls in the work area to minimize risks. In addition, reinforcing behavior-based safety programs and conducting periodic safety evaluations are essential to reduce accident rates and property damage. These strategies are expected to improve occupational safety performance in a sustainable manner.
The Effect of Training and Safety Knowledge on Crew Competence and its Implications for Occupational Safety Onboard at PT. Gelora Persada Makmur Megi Krisma Atamimi; Anditalin Anggraeni; Abdul Rachman; Marihot Simanjuntak; Susi Herawati; Arika Palapa
Dinasti International Journal of Digital Business Management Vol. 7 No. 3 (2026): Dinasti International Journal of Digital Business Management (April-May 2026)
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijdbm.v7i3.6735

Abstract

This study aims to analyze the effect of safety training and safety knowledge on crew competence and its implications for occupational safety on board ships at PT. Gelora Persada Makmur. This research employs a quantitative research design using a survey method with a cross-sectional approach. The population of this study consists of all ship crew members of PT. Gelora Persada Makmur, totaling 100 respondents. A saturated sampling technique was applied, in which the entire population was used as the research sample. Data were collected through a closed-ended questionnaire using a five-point Likert scale distributed online. The collected data were analyzed using the Structural Equation Modeling–Partial Least Squares (SEM-PLS) method with the assistance of SmartPLS software. The results of this study are expected to indicate that safety training and safety knowledge have a positive effect on crew competence, both directly and indirectly, and that crew competence has a positive effect on occupational safety on board. These findings are expected to serve as a basis for improving operational safety management within the company
The Effect of Ship Performance and Green Shipping Campaigns on Charterer Satisfaction Mediated by the Quality of Existing Fleet (PT Pertamina International Shipping) Teguh Budiaji; Marihot Simanjuntak; April Gunawan Malau; Arika Palapa
Dinasti International Journal of Education Management and Social Science Vol. 8 No. 1 (2026): Dinasti International Journal of Education Management and Social Science (Octob
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v8i1.6732

Abstract

This study aims to analyze the influence of vessel performance and Green shipping campaigns on the quality of the existing fleet and their implications for the satisfaction of charterers of vessels owned by PT Pertamina International Shipping. The research adopts a quantitative approach using a survey method with a cross-sectional design. The study population consists of all charterers of PT Pertamina International Shipping in 2024, totaling 33 companies, and the sample size of 117 respondents was determined using the Taro Yamane (Slovin) formula. Data were collected through questionnaires measured on a Likert scale and analyzed using the Structural Equation Modeling–Partial Least Squares (SEM-PLS) method. The findings are expected to demonstrate that vessel performance and Green shipping campaigns have a positive effect on the quality of the existing fleet. Furthermore, the quality of the existing fleet is expected to have a positive influence on charterer satisfaction and to function as a mediating variable in the relationship between vessel performance, Green shipping campaigns, and the satisfaction of charterers of PT Pertamina International Shipping.
Pengaruh Keterampilan dan Pengetahuan Awak Kapal terhadap Kepatuhan Regulasi serta Implikasinya untuk Mencapai Zero Deficiency dalam Port State Control Inspection Muhammad Rafly Ramdhani; Winarno Winarno; Markus Yando; Marihot Simanjuntak; Susi Herawati; Riska Rahim
Jurnal Siber Transportasi dan Logistik Vol. 4 No. 2 (2026): (JSTL) Jurnal Siber Transportasi dan Logistik (Juli - September 2026)
Publisher : Siber Nusantara Research & Yayasan Sinergi Inovasi Bersama (SIBER)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/jstl.v4i2.1125

Abstract

Penelitian ini dilatarbelakangi belum konsistennya pencapaian Zero Deficiency pada armada POS SM Co., Ltd, yang selama periode 2023–2026 mencatat 39 dari 89 inspeksi PSC berdeficiency atau 43,8%, dengan 124 temuan deficiency. Kondisi tersebut menunjukkan adanya kesenjangan keterampilan dan pengetahuan awak kapal dalam mendukung kepatuhan regulasi. Penelitian ini bertujuan menganalisis pengaruh keterampilan dan pengetahuan awak kapal terhadap kepatuhan regulasi dan Zero Deficiency PSC, serta menguji peran kepatuhan regulasi sebagai variabel mediasi. Penelitian menggunakan pendekatan kuantitatif dengan desain explanatory research. Populasi berjumlah 300 awak kapal pada 13 kapal, sedangkan sampel sebanyak 172 responden ditentukan menggunakan rumus Slovin dengan teknik proportionate stratified random sampling. Data dikumpulkan melalui kuesioner skala Likert menggunakan Google Forms dan studi dokumentasi berupa laporan PSC, data deficiency, data awak kapal, serta Monthly SHEQ Meeting. Analisis data menggunakan SEM-PLS dengan SmartPLS melalui pengujian outer model, inner model, bootstrapping 5.000 subsampel, dan VAF untuk analisis mediasi. Hasil penelitian menunjukkan keterampilan berpengaruh positif dan signifikan terhadap kepatuhan regulasi (β=0,388; t=5,485; p<0,001) dan Zero Deficiency (β=0,293; t=4,654; p<0,001). Pengetahuan juga berpengaruh positif dan signifikan terhadap kepatuhan regulasi (β=0,270; t=4,137; p<0,001) dan Zero Deficiency (β=0,164; t=2,444; p=0,015). Kepatuhan regulasi berpengaruh positif signifikan terhadap Zero Deficiency (β=0,346; t=5,548; p<0,001). Mediasi bersifat parsial untuk keterampilan (VAF 31,4%) dan pengetahuan (VAF 36,2%). R² kepatuhan regulasi sebesar 0,297 dan Zero Deficiency sebesar 0,410. Temuan menegaskan bahwa peningkatan kompetensi awak kapal dan pembudayaan kepatuhan regulasi diperlukan untuk meningkatkan kesiapan menghadapi PSC. Disarankan perusahaan memperkuat pelatihan keterampilan, pemahaman SOLAS, MARPOL, MLC 2006, dan STCW, evaluasi berkala, serta pemantauan kesiapan kapal
Analysis of The Application of Ultraviolet Water Sterilizer in Maintaining The Quality of Drinking Water on The MV. EPIC PAN Laode Muhamad Fitra; Nafi Almuzani; Marihot Simanjuntak
International Journal of Advanced Multidisciplinary Vol. 2 No. 2 (2023): International Journal of Advanced Multidisciplinary (July-September 2023)
Publisher : Greenation Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/ijam.v2i2.306

Abstract

Ultraviolet water sterilizer is a long cylindrical device used for the sterilization of water into drinkable water. Ultraviolet water sterilizer has two main parts: an adapter and UV tubes. The adapter serves to drain the ratio of electricity according to the voltage and current required by ultraviolet water sterilizer. UV tubes contain ultraviolet lamps where light is the main equipment for making the water drinkable and the water will flow along with the ultraviolet rays, so that the water flowing in the tube is passed through the sterilization process with ultraviolet rays so that the water is unfit for consumption. The problems that the authors take in this study are the factors that affect the declining quality of sterilization, the impact of what happens when the quality of sterilization decreases, and what efforts are made to keep the quality of sterilization is not decreased. The data was collected through observations, interviews, and literature directly related to the subject related to the factors, the impact, as well as the efforts of the decline in the sterilization process to the sterilizer in order to improve the quality of drinking water. The cause of the decline to the sterilization process in order to improve the quality of drinking water in MV. PAN EPIC that dirty filters, dirty water tubes, and the dirty ultraviolet lamp or resulting in less fresh water, complaints against the company, as well as the ship's operational costs are reduced. Therefore some efforts are made to improve the quality of the results of sterilization including cleaning filters, cleaning water tubes, and also cleaning the germicidal lamp,
Co-Authors Abdul Rachman Anditalin Anggraeni April Gunawan Malau Arika Palapa Laode Muhamad Fitra Markus Yando Megi Krisma Atamimi Muhammad Rafly Ramdhani Nafi Almuzani Riska Rahim Rony Kurnia Susi Herawati Teguh Budiaji Winarno Winarno