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3 TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

3 2025

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Project OPTIMISM: Novel Means of Finding Root Causes of Accidents and Incidence at Sea and Port, as Well as Identifying Key Factors for Improved Safety from Ship Audit and Inspection

Ziarati Reza, de Melo Rodriguez Germán, Koivisto Heikki, Uriasz Janusz, Singh Lakhvir, Barzegarsedigh Amirehsan, Makar Canessa, Chronopoulos Aris

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2025

Vol. 19 No. 2

399--405

This paper presents a set of methodologies for analysing accident investigation reports to enhance learning from past incidents. While these reports are primarily designed to prevent accident recurrence, they often overlook key contributing factors such as personal, organisational, and cultural influences—particularly leadership practices and potential mental health issues that may have played a role. Moreover, accident investigation reports vary in quality and do not always adhere to standardised frameworks, limiting their effectiveness. This paper proposes a novel approach to accident analysis, offering a structured method to distinguish whether an accident is crew-related or company-related - an essential differentiation, as these factors require distinct management and preventive measures. The study draws on findings from multiple recent projects, analysing over 1000 accident reports to develop a new taxonomy. This taxonomy aims to facilitate a more systematic approach to accident analysis while identifying management deficiencies and crew-related challenges, ultimately improving safety and operational practices.

Numerical Analysis of the Effect of Passive Free Surface Tank on Rolling Motion of Batang-Type Traditional Fishing Vessel

Chrismianto Deddy, Yudo Hartono, Arswendo Adietya Berlian, Firdhaus Ahmad, Abel Salassella Alfian

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2025

Vol. 19 No. 2

407--416

Ship accidents are caused by various factors, one of which is excessive roll motion that can lead to capsizing. To address excessive rolling, the passive free surface tank device is a potential solution that can be applied. In order to ensure good performance of the passive free surface tank, it is necessary to investigate the effect of the tank's dimensional configuration on the damping it generates. By identifying the best tank configuration, it is hoped that this study can provide useful references for the design of passive free surface tanks, especially for traditional fishing vessels. The analysis begins by creating several tank specimens with variations in length and fluid height. The performance of the passive free surface tank is evaluated based on the RMS values generated by the ship with the tank, which are then compared to the RMS values of the ship without a tank. In the analysis, FEM-based software is used to assist in the calculations. The results show that the ship with the addition of passive free surface tank type C1 produces the highest roll damping, with a damping percentage of 20.01% at empty load, 25.12% at half load, and 24.37% at full load.

A Thematic Review of Port Services and Emission Reduction Strategies Using ATLAS.ti

Acomi Nicoleta, Surugiu G., Raicu Gabriel, Stanca Costel

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2025

Vol. 19 No. 2

447--457

The maritime industry plays a dual role as a critical driver of global trade and a significant contributor to greenhouse gas (GHG) and air pollutant emissions, posing challenges to environmental sustainability. As key nodes in the global supply chain, ports face mounting pressure to adopt greener practices. This study synthesises insights from contemporary scientific research articles, highlighting best practices, successful case studies, and obstacles in implementing emission reduction strategies and environmentally friendly port services worldwide. A two-step mixed-methods approach was utilised, combining a systematic review of literature with qualitative data analysis. The PRISMA methodology guided the selection of 27 peer-reviewed articles from the Web of Science Core Collection, spanning the period from 2015 to 2024. Subsequently, thematic coding and comprehensive analysis were conducted using Computer-Assisted Qualitative Data Analysis Software (CAQDAS) ATLAS.ti, enabling a structured synthesis of findings related to port services and emission reduction strategies. Through this analysis, three critical themes emerged as essential for enhancing environmental sustainability in port operations: innovative technologies for emission reduction, data-driven optimization for port efficiency, and policies and governance for green ports. Drivers such as financial incentives, advanced technologies, and regulatory frameworks were identified, alongside barriers like economic feasibility, technical challenges, and organisational resistance. These themes reveal the interconnected nature of sustainability efforts and the need for collaborative strategies to overcome existing obstacles. By identifying key drivers and challenges, this research offers valuable insights for advancing sustainable practices in port operations. The findings underscore the importance of aligning technological, operational, and policy-driven measures to foster environmental efficiency while mitigating emissions. This study contributes to the growing body of knowledge on sustainable port operations, providing actionable insights for stakeholders and policymakers in the maritime industry to support the transition toward greener and more efficient port practices.