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A port is a maritime facility comprising one or more
wharves A wharf, quay (, also ), staith, or staithe is a structure on the shore of a harbour or on the bank of a river or canal where ships may dock to load and unload cargo or passengers. Such a structure includes one or more berths (mooring location ...
or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as
Hamburg (male), (female) en, Hamburger(s), Hamburgian(s) , timezone1 = Central (CET) , utc_offset1 = +1 , timezone1_DST = Central (CEST) , utc_offset1_DST = +2 , postal ...
, Manchester and
Duluth , settlement_type = City , nicknames = Twin Ports (with Superior), Zenith City , motto = , image_skyline = , image_caption = Clockwise from top: urban Duluth skyline; Minnesota ...
; these access the sea via rivers or canals. Because of their roles as ports of entry for immigrants as well as soldiers in wartime, many port cities have experienced dramatic multi-ethnic and multicultural changes throughout their histories. Ports are extremely important to the global economy; 70% of global merchandise trade by value passes through a port. For this reason, ports are also often densely populated settlements that provide the labor for processing and handling goods and related services for the ports. Today by far the greatest growth in port development is in Asia, the continent with some of the world's largest and busiest ports, such as
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
and the Chinese ports of Shanghai and Ningbo-Zhoushan. As of 2020, the busiest passenger port in Europe is the Port of Helsinki in Finland. Nevertheless, countless smaller ports do exist that may only serve their local tourism or fishing industries. Ports can have a wide environmental impact on local ecologies and waterways, most importantly water quality, which can be caused by dredging, spills and other pollution. Ports are heavily affected by changing environmental factors caused by climate change as most port infrastructure is extremely vulnerable to sea level rise and
coastal flooding Coastal flooding normally occurs when dry and low-lying land is submerged by seawater. The range of a coastal flooding is a result of the elevation of floodwater that penetrates the inland which is controlled by the topography of the coastal land ...
. Internationally, global ports are beginning to identify ways to improve coastal management practices and integrate
climate change adaptation Climate change adaptation is the process of adjusting to current or expected effects of climate change.IPCC, 2022Annex II: Glossary öller, V., R. van Diemen, J.B.R. Matthews, C. Méndez, S. Semenov, J.S. Fuglestvedt, A. Reisinger (eds.) InClimat ...
practices into their construction.


Historical ports

Wherever ancient civilisations engaged in maritime trade, they tended to develop sea ports. One of the world's oldest known artificial harbors is at
Wadi al-Jarf Wadi al-Jarf ( ar, وادي الجرف) is the present name for an area on the Red Sea coast of Egypt, south of Suez, that is the site of the oldest known artificial harbour in the world, developed about 4500 years ago. It is located at the mout ...
on the Red Sea. Along with the finding of harbor structures, ancient anchors have also been found. Other ancient ports include Guangzhou during Qin Dynasty China and
Canopus Canopus is the brightest star in the southern constellation of Carina and the second-brightest star in the night sky. It is also designated α Carinae, which is Latinised to Alpha Carinae. With a visual apparent magnitude ...
, the principal Egyptian port for Greek trade before the foundation of
Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandri ...
. In ancient Greece, Athens' port of Piraeus was the base for the Athenian fleet which played a crucial role in the Battle of Salamis against the Persians in 480 BCE. In ancient India from 3700 BCE,
Lothal Lothal () was one of the southernmost sites of the ancient Indus Valley civilisation, located in the Bhāl region of the modern state of Gujarāt. Construction of the city is believed to have begun around 2200 BCE. Archaeological Survey of ...
was a prominent city of the Indus valley civilisation, located in the
Bhal region The Bhal region is an area of Gujarat, India. It is spread across the political boundaries of the districts of Bhavnagar, Ahmedabad, and Anand. The Bhal region is situated on the deltas of the Sabarmati, Bhogawo, Bhadar, Lilka and other ...
of the modern state of Gujarāt. Ostia Antica was the port of ancient Rome with Portus established by Claudius and enlarged by Trajan to supplement the nearby port of Ostia. In Japan, during the Edo period, the island of
Dejima , in the 17th century also called Tsukishima ( 築島, "built island"), was an artificial island off Nagasaki, Japan that served as a trading post for the Portuguese (1570–1639) and subsequently the Dutch (1641–1854). For 220 years, i ...
was the only port open for trade with Europe and received only a single Dutch ship per year, whereas Osaka was the largest domestic port and the main trade hub for rice. Post-classical Swahili kingdoms are known to have had trade port islands and trade routes with the Islamic world and Asia. They were described by Greek historians as "metropolises". Famous African trade ports such as Mombasa, Zanzibar, Mogadishu and Kilwa were known to Chinese sailors such as Zheng He and medieval Islamic historians such as the Berber Islamic voyager Abu Abdullah ibn Battuta. Many of these ancient sites no longer exist or function as modern ports. Even in more recent times, ports sometimes fall out of use.
Rye, East Sussex is a small town and civil parish in the Rother district of East Sussex, England, two miles from the sea at the confluence of three rivers: the Rother, the Tillingham and the Brede. An important member of the mediaeval Cinque Ports confederati ...
, was an important English port in the Middle Ages, but the coastline changed and it is now from the sea, while the ports of
Ravenspurn Ravenspurn was a town in the East Riding of Yorkshire, England, which was lost due to coastal erosion, one of more than 30 along the Holderness Coast which have been lost to the North Sea since the 19th century. The town was located close to the ...
and
Dunwich Dunwich is a village and civil parish in Suffolk, England. It is in the Suffolk Coast and Heaths AONB around north-east of London, south of Southwold and north of Leiston, on the North Sea coast. In the Anglo-Saxon period, Dunwich was ...
have been lost to coastal erosion.


Modern ports

Whereas early ports tended to be just simple harbours, modern ports tend to be multimodal distribution hubs, with transport links using sea, river, canal, road, rail and air routes. Successful ports are located to optimize access to an active hinterland, such as the
London Gateway DP World London Gateway is a port within the wider Port of London, United Kingdom. Opened in November 2013, the site is a fully integrated logistics facility, comprising a semi-automated deep-sea container terminal on the same site as the UK ...
. Ideally, a port will grant easy navigation to ships, and will give shelter from wind and waves. Ports are often on estuaries, where the water may be shallow and may need regular dredging. Deep water ports such as Milford Haven are less common, but can handle larger ships with a greater draft, such as super tankers, Post-Panamax vessels and large container ships. Other businesses such as regional distribution centres, warehouses and freight-forwarders, canneries and other processing facilities find it advantageous to be located within a port or nearby. Modern ports will have specialised cargo-handling equipment, such as gantry cranes, reach stackers and forklift trucks. Ports usually have specialised functions: some tend to cater mainly for passenger ferries and
cruise ship Cruise ships are large passenger ships used mainly for vacationing. Unlike ocean liners, which are used for transport, cruise ships typically embark on round-trip voyages to various ports-of-call, where passengers may go on tours known as ...
s; some specialise in
container A container is any receptacle or enclosure for holding a product used in storage, packaging, and transportation, including shipping. Things kept inside of a container are protected on several sides by being inside of its structure. The term ...
traffic or general cargo; and some ports play an important military role for their nation's navy. Some third world countries and small islands such as Ascension and St Helena still have limited port facilities, so that ships must anchor off while their cargo and passengers are taken ashore by barge or launch (respectively). In modern times, ports survive or decline, depending on current economic trends. In the UK, both the ports of Liverpool and Southampton were once significant in the transatlantic passenger liner business. Once airliner traffic decimated that trade, both ports diversified to container cargo and cruise ships. Up until the 1950s the Port of London was a major international port on the River Thames, but changes in shipping and the use of containers and larger ships have led to its decline.
Thamesport London Thamesport (formerly just "Thamesport") is a small container seaport on the River Medway, serving the North Sea. It is located on the Isle of Grain, in the Medway unitary authority district of the English county of Kent. The area was form ...
, a small semi-automated container port (with links to the Port of Felixstowe, the UK's largest container port) thrived for some years, but has been hit hard by competition from the emergent London Gateway port and logistics hub. In mainland Europe, it is normal for ports to be publicly owned, so that, for instance, the ports of
Rotterdam Rotterdam ( , , , lit. ''The Dam on the River Rotte'') is the second largest city and municipality in the Netherlands. It is in the province of South Holland, part of the North Sea mouth of the Rhine–Meuse–Scheldt delta, via the ''"Ne ...
and Amsterdam are owned partly by the state and partly by the cities themselves. Even though modern ships tend to have bow-thrusters and stern-thrusters, many port authorities still require vessels to use pilots and tugboats for manoeuvering large ships in tight quarters. For instance, ships approaching the Belgian
port of Antwerp The Port of Antwerp-Bruges is the port of the City of Antwerp. It is located in Flanders (Belgium), mainly in the province of Antwerp but also partially in the province of East Flanders. It is a seaport in the heart of Europe accessible to ...
, an inland port on the River Scheldt, are obliged to use Dutch pilots when navigating on that part of the estuary that belongs to the Netherlands. Ports with international traffic have customs facilities.


Types

The terms "port" and "seaport" are used for different types of facilities handling ocean-going vessels, and river port is used for river traffic, such as barges and other shallow-draft vessels.


Seaport

A seaport is a port located on the shore of a sea or ocean. It is further categorized as a "cruise port" or a "cargo port". Additionally, "cruise ports" are also known as a "home port" or a "port of call". The "cargo port" is also further categorized into a "bulk" or "break bulk port" or as a "container port".


Cargo port

Cargo ports are quite different from cruise ports, because each handles very different cargo, which has to be loaded and unloaded by a variety of mechanical means. Bulk cargo ports may handle one particular type of cargo or numerous cargoes, such as grains, liquid fuels, liquid chemicals, wood, automobiles, etc. Such ports are known as the "bulk" or "break bulk ports". Ports that handle containerized cargo are known as
container port A container port or container terminal is a facility where cargo containers are transshipped between different transport vehicles, for onward transportation. The transshipment may be between container ships and land vehicles, for example train ...
s. Most cargo ports handle all sorts of cargo, but some ports are very specific as to what cargo they handle. Additionally, individual cargo ports may be divided into different operating terminals which handle the different types of cargoes, and may be operated by different companies, also known as terminal operators, or
stevedore A stevedore (), also called a longshoreman, a docker or a dockworker, is a waterfront manual laborer who is involved in loading and unloading ships, trucks, trains or airplanes. After the shipping container revolution of the 1960s, the number ...
s.


Cruise home port

A cruise home port is the port where cruise ship passengers board (or
embark Embark is a Sri Lankan animal rescue and welfare organization. Since 2007, Embark has been conducting rescues, adoptions, sterilizations, vaccinations, education programmes and advocacy campaigns for the welfare of homeless dogs, cats and other ...
) to start their cruise and disembark the cruise ship at the end of their cruise. It is also where the cruise ship's supplies are loaded for the cruise, which includes everything from fresh water and fuel to fruits, vegetables, champagne, and any other supplies needed for the cruise. "Cruise home ports" are very busy places during the day the cruise ship is in port, because off-going passengers debark their baggage and on-coming passengers board the ship in addition to all the supplies being loaded. Cruise home ports tend to have large passenger terminals to handle the large number of passengers passing through the port. The busiest cruise home port in the world is the Port of Miami, Florida.


Smart port

A smart port uses technologies, including the Internet of Things (IoT) and artificial intelligence (AI) to be more efficient at handling goods. Smart ports usually deploy cloud-based software as part of the process of greater automation to help generate the operating flow that helps the port work smoothly. At present, most of the world's ports have somewhat embedded technology, if not for full leadership. However, thanks to global government initiatives and exponential growth in maritime trade, the amount of intelligent ports has gradually increased. This latest report by business intelligence provider Visiongain assesses that Smart Ports Market spending will reach $1.5 bn in 2019.


Port of call

A port of call is an intermediate stop for a ship on its sailing itinerary. At these ports, cargo ships may take on supplies or fuel, as well as unloading and loading cargo while cruise liners have passengers get on or off ship.


Fishing port

A fishing port is a port or
harbor A harbor (American English), harbour (British English; see spelling differences), or haven is a sheltered body of water where ships, boats, and barges can be docked. The term ''harbor'' is often used interchangeably with ''port'', which is a ...
for landing and distributing fish. It may be a recreational facility, but it is usually commercial. A fishing port is the only port that depends on an ocean product, and depletion of fish may cause a fishing port to be uneconomical.


Inland port

An inland port is a port on a navigable lake, river (fluvial port), or canal with access to a sea or ocean, which therefore allows a ship to sail from the ocean inland to the port to load or unload its cargo. An example of this is the St. Lawrence Seaway which allows ships to travel from the Atlantic Ocean several thousand kilometers inland to Great Lakes ports like
Toronto Toronto ( ; or ) is the capital city of the Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the most populous city in Canada and the fourth most populous city in North America. The city is the anch ...
, Duluth-Superior, and
Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
. The term "inland port" is also used for
dry port A dry port (sometimes referred to as an inland port) is an inland intermodal terminal directly connected by road or rail to a seaport, operating as a centre for the transshipment of sea cargo to inland destinations. In addition to their role in ...
s.


Warm-water port

A warm-water port (also known as an ice-free port) is one where the water does not freeze in winter. This is mainly used in the context of countries with mostly cold winters where parts of the coastline freezes over every winter. Because they are available year-round, warm-water ports can be of great geopolitical or economic interest. Such settlements as Dalian in China, Murmansk, Novorossiysk,
Petropavlovsk-Kamchatsky Petropavlovsk-Kamchatsky ( rus, Петропавловск-Камчатский, a=Петропавловск-Камчатский.ogg, p=pʲɪtrɐˈpavləfsk kɐmˈtɕatskʲɪj) is a city and the administrative, industrial, scientific, and cultu ...
and
Vostochny Port Vostochny Port (russian: Восто́чный порт) is an Intermodal freight transport, intermodal container port at the eastern end of the Trans-Siberian Railway. It is the largest port in the Russian Far East. It is located in Vrangel (an ...
in Russia, Odessa in Ukraine,
Kushiro is a city in Kushiro Subprefecture on the island of Hokkaido, Japan. It serves as the subprefecture's capital and it is the most populated city in the eastern part of the island. Geography Mountains * Mount Oakan * Mount Meakan * Mount Akan ...
in Japan and Valdez at the terminus of the
Alaska Pipeline The Trans-Alaska Pipeline System (TAPS) is an oil transportation system spanning Alaska, including the trans-Alaska crude-oil pipeline, 11 pump stations, several hundred miles of feeder pipelines, and the Valdez Marine Terminal. TAPS is one of ...
owe their very existence to being ice-free ports. The
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and ...
and similar areas have ports available year-round beginning in the 20th century thanks to
icebreaker An icebreaker is a special-purpose ship or boat designed to move and navigate through ice-covered waters, and provide safe waterways for other boats and ships. Although the term usually refers to ice-breaking ships, it may also refer to smaller ...
s, but earlier access problems prompted Russia to expand its territory to the Black Sea.


Dry port

A dry port is an inland intermodal terminal directly connected by road or
rail Rail or rails may refer to: Rail transport *Rail transport and related matters *Rail (rail transport) or railway lines, the running surface of a railway Arts and media Film * ''Rails'' (film), a 1929 Italian film by Mario Camerini * ''Rail'' ( ...
to a seaport and operating as a centre for the
transshipment Transshipment, trans-shipment or transhipment is the shipment of goods or containers to an intermediate destination, then to another destination. One possible reason for transshipment is to change the means of transport during the journey (e.g ...
of sea cargo to inland destinations.


Environmental issues

Ports and their operation are often both the cause of environmental issues, such as sediment contamination and spills from ships and are susceptible to larger environmental issues, such as human caused climate change and its effects.


Dredging

Every year 100 million cubic metres of marine sediment are dredged to improve waterways around ports. Dredging, in its practice, disturbs local ecosystems, brings sediments into the water column, and can stir up pollutants captured in the sediments.


Invasive species

Invasive species are often spread by the
bilge water The bilge of a ship or boat is the part of the hull that would rest on the ground if the vessel were unsupported by water. The "turn of the bilge" is the transition from the bottom of a hull to the sides of a hull. Internally, the bilges (usu ...
and species attached to the hulls of ships. It is estimated that there are over 7000 invasive species transported in bilge water around the world on a daily basis Invasive species can have direct or in-direct interactions with native sea life. Direct interaction such as predation, is when a native species with no natural predator is all of a sudden prey of an invasive specie. In-direct interaction can be diseases or other health conditions brought by invasive species.


Air pollution

Ports are also a source of increased air pollution both because of the ships and land transportation at the port. Transportation corridors around ports have higher exhaust and emissions and this can have related health effects on the local communities.


Water quality

Water quality around ports is often lower because of both direct and indirect pollution from the shipping, and other challenges caused by the port's community, such as trash washing into the ocean.


Spills, pollution and contamination

Sewage from ships, and leaks of oil and chemicals from shipping vessels can contaminate local water, and cause other effects like nutrient pollution in the water.


Climate change and sea level rise

Ports and their infrastructure are very vulnerable to climate change and sea level rise, because many of them are in low-lying areas designed for status quo water levels. Variable weather, coastal erosion, and sea level rise all put pressure on existing infrastructure, resulting in subsidence,
coastal flooding Coastal flooding normally occurs when dry and low-lying land is submerged by seawater. The range of a coastal flooding is a result of the elevation of floodwater that penetrates the inland which is controlled by the topography of the coastal land ...
and other direct pressures on the port.


Reducing impact

There are several initiatives to decrease negative environmental impacts of ports. The World Port Sustainability Program points to all of the Sustainable Development Goals as potential ways of addressing port sustainability. These include SIMPYC, the World Ports Climate Initiative, the African Green Port Initiative, EcoPorts and Green Marine.


World's major ports


Africa

*The port of Tangier Med is the largest port on the Mediterranean and in Africa by capacity and went into service in July 2007. *The busiest port in Africa is Port Said in Egypt.


Asia

The port of Shanghai is the largest port in the world in both cargo tonnage and activity. It regained its position as the world's busiest port by cargo tonnage and the world's busiest container port in 2009 and 2010, respectively. It is followed by the ports of
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
, Hong Kong and Kaohsiung,
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
, all of which are in
East East or Orient is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fac ...
and
Southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainlan ...
. The port of Singapore is the world's second-busiest port in terms of total shipping tonnage, it also transships a third of the world's shipping containers, half of the world's annual supply of crude oil, and is the world's busiest transshipment port.


Europe

Europe's busiest container port and biggest port by cargo tonnage by far is the
Port of Rotterdam The Port of Rotterdam is the largest seaport in Europe, and the world's largest seaport outside of East Asia, located in and near the city of Rotterdam, in the province of South Holland in the Netherlands. From 1962 until 2004, it was the worl ...
, in the Netherlands. It is followed by the Belgian
Port of Antwerp The Port of Antwerp-Bruges is the port of the City of Antwerp. It is located in Flanders (Belgium), mainly in the province of Antwerp but also partially in the province of East Flanders. It is a seaport in the heart of Europe accessible to ...
or the German Port of Hamburg, depending on which metric is used. In turn, the Spanish Port of Valencia is the busiest port in the Mediterranean basin.


North America

The largest ports include the Port of New York and New Jersey,
Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the List of municipalities in California, largest city in the U.S. state, state of California and the List of United States cities by population, sec ...
and
South Louisiana The Port of South Louisiana (french: Port de la Louisiane du Sud) extends 54 miles (87 km) along the Mississippi River between New Orleans, Louisiana and Baton Rouge, Louisiana, centering approximately at LaPlace, Louisiana, which serves as ...
in the U.S., Manzanillo in Mexico and Vancouver in Canada.
Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Co ...
also has the Panama Canal that connects the Pacific and Atlantic Ocean, and is a key conduit for international trade.


Oceania

The largest port in Australia is the Port of Melbourne.


South America

According to
ECLAC The United Nations Economic Commission for Latin America and the Caribbean, known as ECLAC, UNECLAC or in Spanish and Portuguese CEPAL, is a United Nations regional commission to encourage economic cooperation. ECLAC includes 46 member States (2 ...
's "Maritime and Logistics Profile of Latin America and the Caribbean", the largest ports in South America are the
Port of Santos The Port of Santos (in Portuguese: ''Porto de Santos'') is located in the city of Santos, state of São Paulo, Brazil. As of 2006, it is the busiest container port in Latin America. In 2016, it was considered the 39th largest port in the world ...
in Brazil, Cartagena in Colombia, Callao in Peru,
Guayaquil , motto = Por Guayaquil Independiente en, For Independent Guayaquil , image_map = , map_caption = , pushpin_map = Ecuador#South America , pushpin_re ...
in Ecuador, and the
Port of Buenos Aires The Port of Buenos Aires ( es, Puerto de Buenos Aires) is the principal maritime port in Argentina. Operated by the ''Administración General de Puertos'' (General Ports Administration), a state enterprise, it is the leading transshipment point fo ...
in Argentina.


See also

*
Anchorage (shipping) An anchorage is a location at sea where ships can lower anchors. Anchorages are where anchors are lowered and utilised, whereas moorings usually are tethering to buoys or something similar. The locations usually have conditions for safe anchor ...
*
Megaproject A megaproject is an extremely large-scale investment project. According to the ''Oxford Handbook of Megaproject Management'', "Megaprojects are large-scale, complex ventures that typically cost $1 billion or more, take many years to develop and ...
* Marina - port for recreational boating * Port management * Port operator * Ship transport


Other logistics hubs

* Airport *
Spaceport A spaceport or cosmodrome is a site for launching or receiving spacecraft, by analogy to a seaport for ships or an airport for aircraft. The word ''spaceport'', and even more so ''cosmodrome'', has traditionally been used for sites capable ...
* Port of entry


Lists

* Lists of ports * List of busiest cruise ports by passengers


References


External links


Port Industry Statistics, American Association of Port AuthoritiesInformation on yachting facilities at ports around the world from Noonsite.comSocial & Economic Benefits of PORTS
from "NOAA Socioeconomics" website initiative * Antunes, Cátia
''Early Modern Ports, 1500-1750''
European History Online European History Online (''Europäische Geschichte Online, EGO'') is an academic website that publishes articles on the history of Europe between the period of 1450 and 1950 according to the principle of open access. Organisation EGO is issued ...
, Mainz:
Institute of European History The Leibniz Institute of European History (IEG) in Mainz, Germany, is an independent, public research institute that carries out and promotes historical research on the foundations of Europe in the early and late Modern period. Though autonomous i ...
, 2011, retrieved: November 2, 2011. {{Authority control Nautical terminology Infrastructure Industrial buildings