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List of traffic separation schemes

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Example of a TSS on a chart

A traffic separation scheme (or 'TSS') is an area in the sea where navigation of ships is highly regulated. Each TSS is designed to create lanes in the water with ships in a specific lane all travelling in (roughly) the same direction.

A TSS is typically created in locations with large numbers of ship movements and vessels travelling in different directions and where there might otherwise be a high risk of collisions. Details of traffic separation schemes and similar routing-systems can be found on Admiralty charts.[1]

In the list below, where a TSS or routing scheme is not governed by the IMO (IMO), then the governing body is mentioned in brackets.

History

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Internationally agreed traffic separation schemes were first adopted by the IMCO (precursor to the IMO) in November 1973.[2]

Atlantic Ocean: East

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Europe

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Irish Sea

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English Channel

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The English Channel connects the Atlantic Ocean with the Southern part of the North Sea and is one of the busiest shipping areas in the world with ships going in numerous direction: some are passing through in transit from the Southwest to Northeast (or vice versa) and others serving the many ports around the English Channel, including ferries crossing the Channel. In the English Channel several TSS schemes are in operation:[1][3]

Southern North-Sea

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The Southern North Sea overlaps the TSS mentioned in the English Channel above[1]

Russia and Norway

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Some TSSs in these areas are not governed by the IMO but by either the government of Russia or the government of Norway.[citation needed]

Russia
  • off Mys Zimnegorskiy
  • off Ostrov Sosnovets
  • off Ostrova Ponoyskiye Ludki
  • off Tersko-Orlovskiy
  • off Svyatonosskiy Poluostrov
  • Entrance to Kol'skiy Zaliv
  • Proliv Karskiye Vorota
Norway
IMO

Baltic Sea

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Most TSSs in the Baltic Sea are governed by the IMO, but some are the responsibility of the local country.

North Sea: Denmark, Germany, The Netherlands

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In the North Sea, there are several TSSs to manage the traffic to and from some of the busiest ports in the world, such as Rotterdam, Bremerhaven, Amsterdam, and Antwerp. All of these TSSs and routing schemes are governed by the IMO.

Mediterranean Sea and Black Sea

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Numerous TSS's and similar routing-schemes are active in the Mediterranean Sea, the Black Sea and the waters within this area such as the Adriatic Sea. On the charts of the United Kingdom Hydrographic Office some 56 schemes can be found.[1] Many of these schemes are governed by the local state, such as Italy, Spain, Croatia etc.)

Some of the most important TSS's are mentioned below. A complete list can be retrieved from the Notice 17: TRAFFIC SEPARATION SCHEMES AND INFORMATION CONCERNING ROUTEING SYSTEMS SHOWN ON ADMIRALTY CHARTS[1]

Atlantic Ocean: West

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On the Western shores of the Atlantic Ocean are the eastern coasts of North America with the United States of America and Canada. Then there is the Caribbean Sea, the Gulf of Mexico and South America's east coast.

Caribbean Sea and Gulf of Mexico

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East Coast of North America

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Indian Ocean

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Indian Ocean: Africa

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Apart from the TSS schemes in the Mediterranean to the north, the African continent has only a few TSS schemes around the waters of South Africa:

Arabian Peninsula

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This covers the Red Sea, Arabian Sea and Persian Gulf. Some 15 TSS schemes can be found in this area: in the Red Sea is traffic using the Suez Channel while in the Persian Gulf much of the traffic comprises the (large) oil and gas tankers to Iran and Iraq. All TSS's here are governed by the IMO, except the Approaches to Yanbu which is the responsibility of the Kingdom of Saudi Arabia.

Central Indian Ocean

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The Indian Ocean region links in the West with the (above) area of the Arabian Sea and the African continent and in the East it borders with the Pacific Ocean. Apart from schemes in these border-areas only two TSS's are mentioned around India and Sri Lanka:

Malacca Strait, Singapore Strait and Sumatra

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On the Eastern borders of the Indian Ocean are the Malacca Strait, Singapore Strait and the waters around the Indonesian island of Sumatra. This is a very busy shipping area and also very dangerous (see also this section).

Pacific Ocean

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China Seas

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Some 25 TSS schemes are in operation in and around the China Seas. Shipping is very busy around Hong Kong, the mainland of South-East China and around Taiwan.

Some of the most important TSS schemes in this area:

Japan

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In Japan there are 5 TSS's all governed by the Japanese government. Apart from these mandatory schemes there are also voluntary and recommended schemes. These are not shown on Admiralty Charts and (thus) not shown in this overview

Korea and Russia (Pacific Coast)

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In (North) Korean and Pacific Russian waters some 35 schemes are in operation with only 5 of them being governed by the IMO. All major ports in this area have a TSS in operation. In North Korea none of the TSS schemes are IMO schemes; only locally governed by the North Korean central government. Below an overview of the IMO schemes and some of the most important locally governed schemes:

Philippines, Borneo and Indonesia

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There are six TSS's around the Philippines and one in Malaysia. None of them are governed by the IMO:

Australia and Papua New Guinea

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In this area there are four TSS's governed by the IMO:

There are also three leading to Australian ports, governed by Australia:

Aleutian Islands, Alaska, US West Coast, Canada and Mexico

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On the East side of the Pacific Ocean the TSS's are divided in two groups. The North side includes the West coast of Mexico and everything to its North. The other group are formed by the West coast of Central and South America.

The TSS's in the far North around the Aleutian Islands and Alaska are not put in place because of the high density of shipping but the nature of the ships and the vulnerability of the area.

The TSS schemes are:

Pacific: Central and South America

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The IMO governs 16 TSS schemes on the Pacific side of Central and South America:

  • landfall and approaches to Talara Bay, Peru
  • landfall and approaches to Bahia de Paita, Peru
  • landfall of Puerto Salaverry, Peru
  • landfall and approaches to Chimbote or Ferrol Bay, Peru
  • approaches to Callao, Peru
  • landfall and approaches to San Martín
  • landfall and approaches to San Nicolas Bay
  • landfall and approaches to Puerto Ilo
  • landfall and approaches to Arica
  • landfall and approaches to Iquique
  • landfall and approaches to Antofagasta
  • in the approaches to Quintero Bay
  • in the approaches to Valparaíso
  • in the approaches to Bay of Concepción
  • in the approaches to Bahía San Vicente, Chile
  • in the approaches to Puntas Arenas

Sources and references

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  1. ^ a b c d e f UK Hydrographic Office: TSS shown on Admiralty Charts Archived 2012-08-24 at the Wayback Machine, retrieved: 28 April 2012
  2. ^ "RESOLUTION A.284 (VIII) - Routeing Systems". International Maritime Organisation.
  3. ^ National Archive Dover Straits TSS chartlet, retrieved: 28 April 2012
  4. ^ IMO website with a chartlet of the waters around Singapore, visited 28 April 2012
  5. ^ a b "AA175642" (PDF). hydro.gov.au. Australian Hydrographic Service. Retrieved 22 January 2024.
  6. ^ a b "New traffic separation schemes off Western Australia". Australian Maritime Safety Authority. 2016-06-24. Retrieved 22 January 2024.
  7. ^ Map of Port Jackson - East of Sydney Harbour Bridge (PDF). NSW Government. October 2023. p. 1. Retrieved 24 February 2024.
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