This paper is the continuation of a project previously presented for the training of students in both the Bachelor's and Master's degrees in Radio Engineering. The proposal makes it possible to visualise and understand how navigation equipment shares information on board a ship, using low-cost devices. Through an SDR receiver, free software (SDA, ShipPlotter, OpenCPN) and minimal investment, students can receive AIS transmissions, decode them, get their NMEA frames to view over electronic letters. This practice recreates an ECDIS environment in a PC, promoting self-learning, technical curiosity and innovation. In addition, it explores the possibility of generating false NMEA frames to demonstrate the vulnerability of the system, reinforcing the importance of information integrity in navigation. The project demonstrates how, without costly equipment, it is possible to assimilate complex concepts into communication and navigation systems, reinforcing the motivation and active learning of students.
The implementation of sustainable mobility initiatives in academic institutions plays a crucial role in shaping environmentally friendly transport behaviours and enhancing urban accessibility. This study focuses on monitoring and evaluating the effectiveness of sustainable mobility measures within a university setting, examining their impact on commuting patterns and infrastructure usage. It further investigates the role of institutional collaboration in advancing innovative transport solutions and assesses the influence of newly introduced facilities and organizational strategies on mobility choices. By dissecting user feedback and mobility data, the study provides insights into the effectiveness of implemented measures and identifies key challenges and opportunities for further development and enhancing sustainable transport strategies. Despite these efforts, transport behaviours still do not fully align with sustainability goals, highlighting the need for further research and firmed actions. Nevertheless, the results of the survey conducted within this study indicate that the sustainable development policy is progressing in a positive direction, as 45% of respondents report using intermodal transport when commuting to the buildings of Gdynia Maritime University (GMU). The findings aim to support policymakers, urban planners and academic institutions in refining mobility policies and infrastructure to create a more accessible and sustainable transport environment.
This paper applies the SEMIS (Simple Evaluation Methodology for Intact Stability) approach to a 13593 DWT general cargo vessel for stability assessment using only metacentric height (GM). SEMIS estimate key stability parameters through regression models and compares them with IMO Intact Stability Code criteria. Analysis of 1314 loading conditions of investigated ship shows that SEMIS method provides quick and generally accurate evaluations of stability for typical GM ranges (GM>0.30 m). However, results reveal notable discrepancies for low-GM states (GM<0.30 m) especially in context of weather-related criteria. SEMIS in low GM condition may incorrectly classify compliance and may underestimate critical stability parameters. These findings indicate that while SEMIS is a practical supplementary tool, its application should be limited to preliminary checks rather than final compliance verification. Additionally, we can determine the GM value associated with the critical weather criterion. At this point, the b/a ratio reaches its peak, while for lower GM values it decreases significantly, remaining a nonlinear function alongside other stability parameters.
Maritime activity in the Arctic has increased significantly due to declining sea ice, longer open-water seasons, and growing interest in shipping, tourism, fisheries, and natural resources. While these developments create new opportunities, they also increase operational, environmental, and safety challenges in remote and vulnerable regions. This paper argues for the development of a dedicated one-year, 60-ECTS programme in cold-climate maritime engineering to address competency gaps in current maritime education and training (MET) for Arctic operations. The objective of the study is to present key learning requirements based on real challenges and threats as a result of increased activity. The study draws on historical polar maritime accidents, Arctic search-and-rescue exercises, and evaluations of Polar Code training. Case studies, including Maxim Gorkiy (1989), Explorer (2007), Northguider (2018), and Ocean Explorer (2023), reveal recurring challenges related to grounding, ice navigation, emergency response, remoteness, and organizational decision-making. Although accident rates relative to traffic appear to have declined after the introduction of the IMO Polar Code, grounding remains the dominant accident type in Arctic passenger shipping. The paper argues that existing international training standards are insufficient for the complexity of polar operations. To address this, the proposed curriculum combines theoretical instruction, simulator training, laboratory exercises, and case-based learning grounded in resilience and professional competence formation. The programme is organized into six modules covering Arctic operations, marine technology, safety, resilience, and emergency preparedness. The paper concludes that strengthening Arctic maritime resilience requires not only regulation and technology, but also specialized education adapted to the realities of cold-climate operation.
This paper examines the transition from S-57 to S-101 in the context of implementing the S-100 framework, with particular attention to dual-fuel ENC production and its broader operational implications. The study is based on a comparative analysis of IHO normative documents, technical guidance on S-57-to-S-101 conversion, regulatory materials governing ECDIS use, and research literature on transitional production architectures. The analysis identifies the principal structural and functional differences between S-57 and S-101, including changes in data modelling, feature specification, portrayal logic, exchange mechanisms, validation procedures, data protection, and interoperability with other S-100 products. It shows that S-57 -> S-101 conversion cannot be understood as a simple format transformation, since it is constrained by semantic mismatches, differing relationship models, the need to normalize source data, non-equivalent update mechanisms, and the necessity of post-conversion validation and human review. The paper argues that dual-fuel production should be treated as a distinct production and implementation problem affecting database design, workflow organization, quality control, and transition planning. At the same time, the study emphasizes that these producer-side changes are not isolated from practice, since the shift toward the S-100 environment also has implications for ECDIS familiarization, training requirements, bridge procedures, and the broader conditions of navigational safety. The findings suggest that product-neutral database architectures provide the most sustainable long-term basis for parallel S-57 and S-101 production, although their adoption requires substantial institutional and technical investment.
