IALA Maritime Buoyage System NavLib（NavLib国际航标协会海上浮标系统）.pdfVIP

IALA Maritime Buoyage System Above: Sealite Poseidon-1750 Ocean Buoy, West Sea Who is IALA? Established in 1957, IALA (International Association of Marine Aids and Lighthouse Authorities) is a non-profit international technical association. IALA provides nautical expertise and advice. IALA encourages its members to work together to harmonise aids to navigation worldwide and to ensure the movements of vessels are safe, expeditious and cost effective whilst simultaneously protecting the environment. One of the ways IALA achieves this is by establishing technical committees which bring together experts from more than 80 countries around the world. The work of these committees is to develop recommendations on technologies and practices which are available in publications such as IALA Recommendations and Guidelines. IALA is chiefly known for its buoyage system. As early as 1976, there were more than 30 dissimilar buoyage systems in use throughout the world. To avoid confusion and help create safe navigation to mariners of different regions IALA have created a worldwide buoyage system. Region A Region B To minimise the number of changes to existing systems and to meet conflicting requirements IALA decided to create a system divided into two regions. The region followed is dependent on geographical location: Region A: Europe, Australia, New Zealand, Africa, the Gulf and some Asian countries Region B: North, Central South America, Japan, North South Korea and the Philippines What Region am I in? Refer to Appendix A on page 7 to view map of IALA Buoyage Region A Region B. Types of Marks The different types of marks used in the pilotage of vessels at sea are easily distinguished by their shape, colour, topmark by day and the colour and rhythm of the light by night. The five types of marks are: Lateral Marks: indicate the edge of a channel