A port is a
maritime facility comprising one or more
wharves 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,
Manchester and
Duluth; 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 and the
Chinese ports of
Shanghai and
Ningbo-Zhoushan. As of 2020, the
busiest passenger port in Europe is the
Port of Helsinki
The Port of Helsinki ( fi, Helsingin Satama, sv, Helsingfors Hamn) is one of the busiest passenger ports in Europe and the main port for foreign trade in Finland.
For passenger traffic, the port operates regular liner connections to destination ...
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.
Internationally, global ports are beginning to identify ways to improve
coastal management practices and integrate
climate change adaptation 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 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, the principal Egyptian port for Greek trade before the foundation of
Alexandria. In ancient Greece, Athens' port of
Piraeus was the base for the Athenian fleet which played a crucial role in the
Battle of Salamis
The Battle of Salamis ( ) was a naval battle fought between an alliance of Greek city-states under Themistocles and the Persian Empire under King Xerxes in 480 BC. It resulted in a decisive victory for the outnumbered Greeks. The battle was ...
against the Persians in 480 BCE. In ancient India from 3700 BCE,
Lothal was a prominent city of the Indus valley civilisation, located in the
Bhal region of the modern state of
Gujarāt
Gujarat (, ) is a state along the western coast of India. Its coastline of about is the longest in the country, most of which lies on the Kathiawar peninsula. Gujarat is the fifth-largest Indian state by area, covering some ; and the ninth- ...
.
Ostia Antica was the port of ancient Rome with
Portus
Portus was a large artificial harbour of Ancient Rome. Sited on the north bank of the north mouth of the Tiber, on the Tyrrhenian coast, it was established by Claudius and enlarged by Trajan to supplement the nearby port of Ostia.
The archae ...
established by
Claudius
Tiberius Claudius Caesar Augustus Germanicus (; 1 August 10 BC – 13 October AD 54) was the fourth Roman emperor, ruling from AD 41 to 54. A member of the Julio-Claudian dynasty, Claudius was born to Nero Claudius Drusus, Drusu ...
and enlarged by
Trajan to supplement the nearby port of Ostia. In Japan, during the
Edo period, the island of
Dejima 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
Kilwa Kisiwani (English: ''Kilwa Island'') is an island, national historic site, and hamlet community located in the township of Kilwa Masoko, the district seat of Kilwa District in the Tanzanian region of Lindi Region in southern Tanzania. K ...
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, 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 and
Dunwich 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. 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
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ...
. Deep water ports such as
Milford Haven
Milford Haven ( cy, Aberdaugleddau, meaning "mouth of the two Rivers Cleddau") is both a town and a community in Pembrokeshire, Wales. It is situated on the north side of the Milford Haven Waterway, an estuary forming a natural harbour that has ...
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 stacker
A reach stacker is a vehicle used for handling intermodal cargo containers in small terminals or medium-sized ports. Reach stackers are able to transport a container short distances very quickly and pile them in various rows depending on its acce ...
s and
forklift trucks.
Ports usually have specialised functions: some tend to cater mainly for
passenger ferries and
cruise ships; some specialise in
container 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
Saint Helena () is a British overseas territory located in the South Atlantic Ocean. It is a remote volcanic tropical island west of the coast of south-western Africa, and east of Rio de Janeiro in South America. It is one of three constitu ...
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, 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 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, 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
Customs is an authority or agency in a country responsible for collecting tariffs and for controlling the flow of goods, including animals, transports, personal effects, and hazardous items, into and out of a country. Traditionally, 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 ports.
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
stevedores.
Cruise home port
A cruise home port is the port where cruise ship passengers board (or
embark) 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
The Internet of things (IoT) describes physical objects (or groups of such objects) with sensors, processing ability, software and other technologies that connect and exchange data with other devices and systems over the Internet or other comm ...
(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 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
The St. Lawrence Seaway (french: la Voie Maritime du Saint-Laurent) is a system of locks, canals, and channels in Canada and the United States that permits oceangoing vessels to travel from the Atlantic Ocean to the Great Lakes of North Americ ...
which allows ships to travel from the Atlantic Ocean several thousand kilometers inland to Great Lakes ports like
Toronto,
Duluth-Superior, and
Chicago. The term "inland port" is also used for
dry ports.
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
Dalian () is a major sub-provincial port city in Liaoning province, People's Republic of China, and is Liaoning's second largest city (after the provincial capital Shenyang) and the third-most populous city of Northeast China. Located on the ...
in China,
Murmansk,
Novorossiysk
Novorossiysk ( rus, Новоросси́йск, p=nəvərɐˈsʲijsk; ady, ЦIэмэз, translit=Chəməz, p=t͡sʼɜmɜz) is a city in Krasnodar Krai, Russia. It is one of the largest ports on the Black Sea. It is one of the few cities hono ...
,
Petropavlovsk-Kamchatsky and
Vostochny Port in Russia,
Odessa
Odesa (also spelled Odessa) is the third most populous city and municipality in Ukraine and a major seaport and transport hub located in the south-west of the country, on the northwestern shore of the Black Sea. The city is also the administrativ ...
in Ukraine,
Kushiro in Japan and
Valdez at the terminus of the
Alaska Pipeline owe their very existence to being ice-free ports. The
Baltic Sea and similar areas have ports available year-round beginning in the 20th century thanks to
icebreakers, 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 to a seaport and operating as a centre for the
transshipment 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
Marine sediment, or ocean sediment, or seafloor sediment, are deposits of insoluble particles that have accumulated on the seafloor. These particles have their origins in soil and rocks and have been transported from the land to the sea, mainly ...
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
An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species ad ...
are often spread by the
bilge water 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
Subsidence is a general term for downward vertical movement of the Earth's surface, which can be caused by both natural processes and human activities. Subsidence involves little or no horizontal movement, which distinguishes it from slope move ...
,
coastal flooding 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
Port Said ( ar, بورسعيد, Būrsaʿīd, ; grc, Πηλούσιον, Pēlousion) is a city that lies in northeast Egypt extending about along the coast of the Mediterranean Sea, north of the Suez Canal. With an approximate population of 6 ...
in Egypt.
Asia
The
port of Shanghai
The Port of Shanghai (), located in the vicinity of Shanghai, comprises a deep-sea port and a river port.
The main port enterprise in Shanghai, the Shanghai International Port Group (SIPG), was established during the reconstitution of the S ...
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
This article lists the world's busiest container ports (ports with container terminals that specialize in handling goods transported in intermodal shipping containers), by total number of twenty-foot equivalent units (TEUs) transported through ...
in 2009 and 2010, respectively. It is followed by the ports of
Singapore,
Hong Kong and
Kaohsiung
Kaohsiung City (Mandarin Chinese: ; Wade–Giles: ''Kao¹-hsiung²;'' Pinyin: ''Gāoxióng'') is a special municipality located in southern Taiwan. It ranges from the coastal urban center to the rural Yushan Range with an area of . Kaohsi ...
,
Taiwan, all of which are in
East and
Southeast Asia.
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
Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crude ...
, and is the world's busiest
transshipment port
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. ...
.
Europe
Europe's busiest container port and biggest port by cargo tonnage by far is the
Port of Rotterdam, in the Netherlands. It is followed by the Belgian
Port of Antwerp or the German
Port of Hamburg
The Port of Hamburg (german: Hamburger Hafen, ) is a seaport on the river Elbe in Hamburg, Germany, from its mouth on the North Sea.
Known as Germany's "Gateway to the World" (''Tor zur Welt''), it is the country's largest seaport by volume ...
, 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 and
South Louisiana in the U.S.,
Manzanillo in Mexico and
Vancouver in Canada.
Panama 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's "Maritime and Logistics Profile of Latin America and the Caribbean", the largest ports in South America are the
Port of Santos in Brazil,
Cartagena in Colombia,
Callao
Callao () is a Peruvian seaside city and Regions of Peru, region on the Pacific Ocean in the Lima metropolitan area. Callao is Peru's chief seaport and home to its main airport, Jorge Chávez International Airport. Callao municipality consists o ...
in Peru,
Guayaquil in Ecuador, and the
Port of Buenos Aires in Argentina.
See also
*
Anchorage (shipping)
*
Megaproject
*
Marina
A marina (from Spanish , Portuguese and Italian : ''marina'', "coast" or "shore") is a dock or basin with moorings and supplies for yachts and small boats.
A marina differs from a port in that a marina does not handle large passenger ships o ...
- port for recreational boating
*
Port management Port management involves the management of ports.
Larger ports
According to a syllabus of the United Nations University:
:Large ports need to deal with a number of disparate activities: the movement of ships, containers, and other cargo, t ...
*
Port operator
*
Ship transport
Other logistics hubs
*
Airport
*
Spaceport
*
Port of entry
In general, a port of entry (POE) is a place where one may lawfully enter a country. It typically has border security staff and facilities to check passports and visas and to inspect luggage to assure that contraband is not imported. Internati ...
Lists
*
Lists of ports
*
List of busiest cruise ports by passengers
This is a list of busiest cruise ports by passengers. Some Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the con ...
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 PORTSfrom "NOAA Socioeconomics" website initiative
* Antunes, Cátia
''Early Modern Ports, 1500-1750'' European History Online, Mainz:
Institute of European History, 2011, retrieved: November 2, 2011.
{{Authority control
Nautical terminology
Infrastructure
Industrial buildings