Safety of Sea Transportation is thesecond of two Conference Proceedings of TransNav 2017, June 21-23 in Gdynia, Poland. Safety of Sea Transportationwill focus on the following themes:Sustainability, intermodal and multimodal transportationSafety and hydrodynamic study of hydrotechnical structuresBunkering and fuel consumptionGases emission, water pollution and environmental protectionOccupational accidentsSupply chain of blocks and spare partsElectrotechnical problemsShips stability and loading strengthCargo loading and port operationsMaritime Education and Training (MET)Human factor, crew manning and seafarers problemsEconomic analysisMathematical models, methods and algorithmsFisheryLegal aspectsAviation