METHOD AND SYSTEM TO IMPROVE NAVIGATION SAFETY FOR SEA-GOING VESSELS IN HAZARDOUS WATERS

Method and system for guiding sea-going vessel traffic for at least one vessel (1) when it moves into, in and out of hazardous waters, substantially based on visual and acoustic information which a master of the vessel on the vessel bridge perceives in his/her direction of viewing from visual and/or acoustic seamarks (4) in water or on land. Based on positions, movements of manoeuvring (speed) and course of the vessel, there is caused controlled activation or deactivation, simultaneously or time divided, of light signalling- and/or sonic signalling equipment of those at any time actual seamarks (4) along a sailing route (2, 2.2) of the vessel. The seamarks (4) in the system are equipped with selectively activatable and deactivatable light signalling- and/or sonic signalling equipment. A processing- and control unit (10) is configured to receiving continuous information about positions, movements of manoeuvring and couse of the vessel along the sailing route (2, 2.2) of the vessel, and deliver control signals to the light signalling- and/or sonic signalling equipment of actual seamarks (4) in order on command from the control signals to activate or deactivate simultaneously or time divided said signalling equipment.