Folios
AVCS is sold in a series of folios, which are geographic collections of ENCs at specific scales or usage bands. They are designed to make ordering, maintenance and licensing as easy and flexible as possible.
AVCS folios provide cost-effective coverage tailored to the world’s shipping routes and therefore help you avoid purchasing unnecessary data. There are three types of AVCS Folio – Transit, Regional and Ports.
Transit Folios
These are designed to provide all the coverage needed for a vessel to pass safely through a region when not engaging in local trade, saving you the expense of purchasing detailed coverage for regions that you are just passing through, whilst including more coverage to negotiate the choke points such as the Suez Canal and Malacca Straits.
AVCS Transit Folio Overview | Example Transit Folio
Regional Folios
These cover a much smaller geographical area than Transit Folios and include all Coastal and some Approach ENCs, where coastal coverage is not available. Regional Folios are designed for local and coastal trade, where more detailed coverage of complex coastal waters is required. They do not include Port Approaches or Entry.
AVCS Regional Folio Overview | Example Regional Folio
Port folios
These typically comprise Approach, Harbour and Berthing cells grouped together into a single sales unit. Under typical operational conditions, vessels approaching a port directly from an ocean passage will require only Transit and Port Folios if not engaging in coastal operation.
Where a number of major ports are grouped in a complex waterway (e.g. Japan’s ‘Bungo Suido and Western Inland Sea’), a ‘Superport’ folio may be available to provide the additional large scale detail necessary for safe navigation. In other cases, a Superport folio may cover a number of closely grouped ports (e.g. ‘River Thames & Medway’).
Example Port Folios