Vtso, Marine Operations
Current6.2 VTS SERVICESThe following guidance concerning the services that are rendered by a VTS-centre should be taken into account.6.2.1 Information Service (INS)An Information Service (INS) provides relevant information at appropriate or fixed times and intervals or when deemed necessary by the VTS or at the request of a vessel and may include, for example: reports on the position, identity and intentions of other traffic; waterway conditions; weather; hazards; or any other factors that may influence the vessel’s transit.An INS provides relevant information at appropriate times and on request for the promulgated VTS area.6.2.2 Navigational Assistance Service (NAS)A Navigational Assistance Service (NAS) is a service that provides essential and timely navigational information to assist in the onboard navigational decision making process and to monitor its effects. It may also involve the provision of navigational advice and/or instruction.6.2.3 Traffic Organisation Service (TOS)A Traffic Organisation Service (TOS) is a service to prevent the development of dangerous traffic situations and to provide for the safe and efficient movement of vessel traffic within the declared VTS area.It concerns the operational management of traffic and the planning of vessel movements to prevent congestion and dangerous situations and is particularly relevant in times of high traffic density or when vessel movements may affect the traffic flow.(More information can be fount in IALA document R0120 (V-120)
