Arctic shipping presents unique safety challenges as increasing activity in ice-covered waters coincides with complex environmental and operational risks. Advanced risk-analysis frameworks that combine accident causation, consequence modelling and uncertainty assessment are strengthening decision-making, supporting safer navigation, more effective risk management and improved resilience along emerging Arctic trade routes.

Digitalisation is transforming ship operations as growing volumes of sensor data create new opportunities for performance optimisation, emissions reduction and predictive maintenance. Automated operational-mode detection is emerging as an important enabler of smarter vessel management, supporting data-driven decision-making and providing a foundation for increasingly autonomous and efficient maritime operations.

Corrosion protection remains a critical lifecycle challenge for ship operators, particularly within ballast tanks where maintenance requirements can drive significant long-term costs. Strategic coating decisions can influence asset longevity, dry-docking requirements and environmental performance, highlighting the trade-offs between upfront investment, maintenance planning and whole-life vessel value.

Advanced control systems continue to expand the capabilities of autonomous underwater vehicles operating in complex environments. The combination of predictive control and robust stabilisation techniques highlights growing opportunities to improve vehicle performance, manoeuvrability and reliability, supporting the development of more capable autonomous systems for marine, defence and research applications.

Early-stage design decisions play a pivotal role in the performance, efficiency and commercial viability of semi-submersible platforms. Integrating mathematical design models with global optimisation techniques enables a more balanced assessment of stability, motion behaviour and operational requirements, supporting smarter design choices and more efficient offshore structures from the outset.

Quantitative assessment is becoming increasingly important in pilotage, training and port operations, where understanding vessel manoeuvring performance can enhance safety and consistency. By combining simulator data, trajectory modelling and scoring techniques, more objective evaluation of ship handling can support improved training outcomes, operational benchmarking and better-informed navigational decision-making.

Navigating in confined and shallow waterways remains a significant challenge, where ship-to-bank interactions can affect vessel controllability, safety and operational efficiency. Advances in CFD modelling are improving understanding of these complex hydrodynamic effects, supporting more accurate prediction of bank-induced forces and helping inform safer navigation and waterway management strategies.

Biofouling is emerging as a major operational and environmental challenge, with hull roughness significantly affecting fuel consumption and emissions. International collaboration between industry, academia and classification bodies is advancing new measurement and monitoring techniques, creating opportunities for more effective hull management, improved vessel efficiency and better-informed sustainability and maintenance strategies.

Stability is a critical consideration for subsea protection systems, where installation configuration can significantly influence long-term performance. Experimental analysis of articulated concrete mattresses reveals how centre-of-gravity changes affect hydrodynamic behaviour in current flows, providing valuable guidance for installation practices and supporting more reliable protection of offshore and subsea infrastructure.