The IMO defines a Vessel Traffic Service (VTS) as a service implemented by a Competent Authority, designed to improve the safety and efficiency of vessel traffic and to protect the environment. The service should have the capability to interact with the traffic and to respond to traffic situations developing in the VTS area. The IALA VTS Manual states that “The realities of modern shipping, with larger and less manoeuvrable ships, traffic congestion in ports and waterways, hazardous cargoes and the potential for environmental damage, demanded that sophisticated measures be taken to reduce risks. Establishing Vessel Traffic Services was and still is a significant response to that demand”.
The IMO identifies three types of service that can be provided by a VTS:
- Information Service (INS)
- Traffic Organisation Service (TOS)
- Navigational Assistance Service (NAS)
The title of each service in each case is largely self-explanatory. In its simplest form, a VTS may provide basic information on which the master of the vessel bases his own decisions without further intervention from ashore. More usually, however, a VTS is also directly involved in the organisation and management of vessel traffic within its area of responsibility. As part of these services, the VTS should provide an oversight of the navigational safety of vessels and provide navigational assistance and advice if appropriate.
The VTS should be manned by personnel nationally certificated to the internationally recognised IALA V103 course standard. The types of service provided by a VTS will be promulgated in appropriate hydrographic publications.
IALA International Association of Marine Aids to Navigation and Lighthouse Authorities
IALA is a non-profit, international technical association. Established in 1957, it brings together authorities concerned with marine aids to navigation, as well as manufactures and consultants from all parts of the world, and offers them the opportunity to compare their experiences and achievements. IALA’s aim is to harmonize aids to navigation worldwide and to ensure that the movements of vessels are safe, expeditious, cost-effective and harmless to the environment. VTS documentation and standards in the form of standards, recommendations, guidelines, brochures and the VTS Manual are available free of charge for download under the “Publications” tab on the IALA website.
Aids to Navigation (AtoN)
Aids to navigation can take the form of fixed or floating marks that may be lit or unlit, including lighthouses, leading lines, buoys and beacons. A vessel traffic service (VTS) can also be categorised as an AtoN, albeit a very sophisticated and relatively costly one. The mix of AtoN used in a port or waterway is determined by means of a risk assessment, which takes into account the local geography, traffic patterns, vessel size and manoeuvrability, local hydrographic conditions and weather patterns. IALA publications include guidance on maintenance and location of AtoN.
Latest News & Events
A new report from the FAO shows that while most fish stocks remain overexploited, the number of stocks subject to overfishing has decreased for the first time in decades. This was announced from FAO HQ in Rome in mid-December. Readers are invited to see the full report here: http://www.fao.org/documents/card/en/c/cb2429en
After decades of increasing human pressures on the Mediterranean and Black Sea marine ecosystems and fisheries resources, the latest data suggest that a corner is finally being turned on overexploitation of the region's vital fish stocks.
According to a new report on the State of Mediterranean and Black Sea Fisheries (SoMFi 2020), released on 14 December, while 75% of fish stocks remain subject to overfishing, this percentage fell by more than 10% between 2014 and 2018. Exploitation ratios are down by a similar proportion. Taking into account newly assessed stocks, the number of fish stocks with high relative biomass has doubled since the last edition published in 2018.
Crew changes are once more becoming difficult as much of the world locks down again following the emergence of several new and more transmissible variants of Covid-19, crew specialist Danica has warned.
With travel corridors being closed and new travel restrictions imposed, airlines are once again cancelling or reducing flights which poses a problem for crew transiting to vessels. It is understood from Danica that ports too, if they have reopened, are imposing greater restrictions.
Henrik Jensen (pictured), Managing Director of Danica Crewing Services, has warned: ‘I believe we may be heading for a new crew change crisis every bit as bad as last spring. Over the past six months crew changes have been possible in many cases, although they have been costly and complex. However, now we are seeing a range of new restrictions and barriers to crew travel while also facing some serious issues in relation to crew health risk factors. I can foresee this impacting heavily on crew changes for the next few months.’
Danica specialises in crew deployment and has been assisting a range of ship operators in order to achieve crew changes over the past year. As a result, the company is fully aware of the latest rules and restrictions and well-placed to notice how they are impacting crewing.
Jensen explained: ‘In response to the rapid increase in infections around the world, governments are imposing new or additional measures including travel restrictions. Although these measures are understandable in the circumstances, based on scientific evidence, and intended to provide protection for their populations, they also cause operational and logistical problems for crew changes.
Become a Member
Join the world’s premier professional body for harbour masters and receive up-to-date information on the industry and access to the members' area of the website.
