List of traffic separation schemes

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.

Example of a TSS on a chart

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.

Atlantic Ocean: East

Europe

Irish Sea

English Channel

The English Channel connects the Atlantic Ocean with the Southern part of the North Sea and belong to the busiest shipping areas in the world with ships going in numerous direction: you have ships that are 'just' passing through from the Southwest to Northeast (or vice versa), ships going to or departing from one of the many ports around the English Channel and then the ferries crossing the channel. In the English Channel several TSS schemes are in operation:[1][2]

Southern North-Sea

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

Russia and Norway

TSS's in these areas aren't governed by the IMO but by either the government of Russia (marked: R) or the Norwegian government (marked N)

  • off Mys Zimnegorskiy (R)
  • off Ostrov Sosnovets (R)
  • off Ostrova Ponoyskiye Ludki (R)
  • off Tersko-Orlovskiy (R)
  • off Svyatonosskiy Poluostrov (R)
  • Entrance to Kol’skiy Zaliv (R)
  • Proliv Karskiye Vorota (R)
  • off Makkaur (N)
  • off Cape Nordkinn (N)
  • off Nordkapp (N)
  • Coast of Western Norway (IMO)
  • Coast of Southern Norway (IMO)
  • 4 different TSS around Oslo Fjord (N)
  • Vardø to Røst (IMO)
  • off the Southwest coast of Iceland (IMO)

Baltic Sea

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

North Sea: Denmark, Germany, The Netherlands

In the area of the North Sea which lies North of the earlier mentioned Dover Straits several TSS's are in place to manage the traffic to and from some of the busiest ports in the world such as: Port of Rotterdam, Bremerhaven, Port of Amsterdam, Antwerp etc. All of these TSS's and routing-schemes are governed by the IMO

Mediterranean Sea and Black Sea

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

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

East Coast of North America

Indian Ocean

Indian Ocean: Africa

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

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

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:

  • off Mumbai, India, governed by the Director General Shipping, India
  • off Dondra Head, Sri Lanka

Malacca Strait, Singapore Strait and Sumatra

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

China Seas

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

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

  • Kurushima Kaikyo off Ōshima
  • North, South and East Bisan Seto; approaches to Mizushima and Uko
  • Akashi Kaikyō
  • Irago Suido
  • Na Ka-no-Se

Korea and Russia (Pacific Coast)

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

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

  • Isla Verde Passage or Verde Island Passage, (Government of Philippines)
  • approaches to Manila Bay, (Government of Philippines)
  • approaches to Manila Harbour, (Government of Philippines)
  • Cebu, Mactan Channel, (Government of Philippines)
  • Malapascua Island, (Government of Philippines)
  • Batangas, (Government of Philippines)
  • approaches to Bintulu Port, (Government of Malaysia)

Australia and Papua New Guinea

In this area there are 5 TSS's in operation: two in the Bass Strait, governed by the IMO and three leading to Australian ports, governed by Australia.

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

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

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
  1. UK Hydrographic Office: TSS shown on Admiralty Charts Archived 2012-08-24 at the Wayback Machine, retrieved: 28 April 2012
  2. National Archive Dover Straits TSS chartlet, retrieved: 28 April 2012
  3. IMO website with a chartlet of the waters around Singapore, visited 28 April 2012
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