Environmental Sustainability of Seaports Strategic Analysis, Modeling and Simulation

Seaports are critical nodes in global trade and logistics systems, serving as gateways between maritime and inland transport networks. However, their intensive energy use, reliance on conventional fossil fuels, and associated greenhouse gas (GHG) emissions make them major contributors to environmental challenges. In the face of intensifying climate change, increasingly stringent international regulations, and growing societal pressure for cleaner operations, the pursuit of environmental sustainability in seaports has become both urgent and unavoidable. Achieving this requires comprehensive solutions that combine technological innovation, energy transition strategies, and operational optimization supported by advanced modelling and simulation techniques. This study proposes a holistic framework to examine seaport environmental sustainability across four interrelated dimensions: integration of renewable energy, sustainable transportation, LNG bunkering, and cold ironing. First the research investigates opportunities for incorporating renewable energy sources such as solar, wind, and tidal power into port infrastructure. Through modeling and simulation, the study evaluates how these resources can reduce fossil fuel dependence while ensuring operational reliability. Second, the analysis focuses on transportation systems within and around seaports. including port vehicle electrification, modal shifts, and multimodal logistics strategies. Alternative transportation scenarios are modelled to assess their potential to lower emissions while maintaining cargo-handling efficiency and hinterland connectivity. Third, LNG bunkering is examined as a transitional fuel solution for maritime vessels. Scenario analyses compare LNG’s environmental performance against conventional fuels, highlighting its greenhouse gas reduction potential, long-term viability, and infrastructure requirements. Finally, the study explores cold ironing, the provision of shore-side electricity to berthed ships. By simulating energy flows and emission scenarios, the research evaluates cold ironing’s effectiveness in reducing local air pollution and improving environmental conditions in port cities. Together, these four dimensions create a comprehensive framework that not only quantifies the environmental benefits of individual initiatives but also reveals trade-offs and synergies among them. The findings provide valuable guidance to port authorities, policymakers, and industry stakeholders seeking to design greener, smarter, and more resilient seaports capable of meeting future sustainability goals.