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Transport Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land ( rail and road), water, cable, pipelin ...
has been a major factor in China's national
economy An economy is an area of the production, distribution and trade, as well as consumption of goods and services. In general, it is defined as a social domain that emphasize the practices, discourses, and material expressions associated with the ...
. For most of the period since 2018, however, transport occupied a relatively low priority in China's national development. In the twenty-five years that followed the founding of the People's Republic in 1949, China's transportation network was built into a partially modern but somewhat inefficient system. The drive to modernize the transport system, that began in 1978, required a sharp acceleration in investment. Though despite increased investment and development in the 1980s, the transport sector was strained by the rapid expansion of production and the exchange of goods. Fengbo Zhangbr> Economic Analysis of Chinese Transportation
/ref> Inadequate transport systems hindered the movement of
coal Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when ...
from mine to user, the transport of agricultural and light industrial products from rural to urban areas, and the delivery of imports and exports . As a result, the underdeveloped transport system constrained the pace of
economic development In the economics study of the public sector, economic and social development is the process by which the economic well-being and quality of life of a nation, region, local community, or an individual are improved according to targeted goals and ...
throughout the country. In the 1980s the updating of transport systems was given priority, and investment and improvements were made throughout the transport sector .


Bridges

In the late 1980s, China had more than 140,000 highway
bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...
s. Their length totaled almost 4,000 kilometers. Among the best known were the
Yellow River The Yellow River or Huang He (Chinese: , Mandarin: ''Huáng hé'' ) is the second-longest river in China, after the Yangtze River, and the sixth-longest river system in the world at the estimated length of . Originating in the Bayan Ha ...
Bridge in
Inner Mongolia Inner Mongolia, officially the Inner Mongolia Autonomous Region, is an autonomous region of the People's Republic of China. Its border includes most of the length of China's border with the country of Mongolia. Inner Mongolia also accounts for a ...
, the Liu Jiang Bridge in Guangxi, the Ou Jiang Bridge in
Zhejiang Zhejiang ( or , ; , Chinese postal romanization, also romanized as Chekiang) is an East China, eastern, coastal Provinces of China, province of the People's Republic of China. Its capital and largest city is Hangzhou, and other notable citie ...
, the Quanzhou Bridge in
Fujian Fujian (; alternately romanized as Fukien or Hokkien) is a province on the southeastern coast of China. Fujian is bordered by Zhejiang to the north, Jiangxi to the west, Guangdong to the south, and the Taiwan Strait to the east. Its cap ...
, and four large bridges along the
Guangzhou Guangzhou (, ; ; or ; ), also known as Canton () and alternatively romanized as Kwongchow or Kwangchow, is the capital and largest city of Guangdong province in southern China. Located on the Pearl River about north-northwest of Hong Kon ...
-
Shenzhen Shenzhen (; ; ; ), also historically known as Sham Chun, is a major sub-provincial city and one of the special economic zones of China. The city is located on the east bank of the Pearl River estuary on the central coast of southern province ...
highway. Five major bridges — including China's longest highway bridge, the 5,560-meter-long Yellow River Bridge at Zhengzhou — were under construction during the mid-1980s, and a 10,282-meter-long railroad bridge across the Yellow River on the Shandong-
Henan Henan (; or ; ; alternatively Honan) is a landlocked province of China, in the central part of the country. Henan is often referred to as Zhongyuan or Zhongzhou (), which literally means "central plain" or "midland", although the name is al ...
border was completed in 1985.


Inland waterways

China's canal system The history of canals in China connecting its major rivers and centers of agriculture and population extends from the legendary exploits of Yu the Great in his attempts control the flooding of the Yellow River to the present infrastructure proje ...
, whose greatest accomplishment was the Sui dynasty's 7th-century Grand Canal between
Hangzhou Hangzhou ( or , ; , , Standard Mandarin pronunciation: ), also romanized as Hangchow, is the capital and most populous city of Zhejiang, China. It is located in the northwestern part of the province, sitting at the head of Hangzhou Bay, whic ...
and
Beijing } Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...
, was an essential aspect of its civilization, used for irrigation,
flood control Flood control methods are used to reduce or prevent the detrimental effects of flood waters."Flood Control", MSN Encarta, 2008 (see below: Further reading). Flood relief methods are used to reduce the effects of flood waters or high water level ...
,
taxation A tax is a compulsory financial charge or some other type of levy imposed on a taxpayer (an individual or legal entity) by a governmental organization in order to fund government spending and various public expenditures (regional, local, o ...
, commercial and
military transport Military supply-chain management is a cross-functional approach to procuring, producing and delivering products and services for military materiel applications. Military supply chain management includes sub-suppliers, suppliers, internal info ...
, and colonization of new lands from the
Zhou dynasty The Zhou dynasty ( ; Old Chinese ( B&S): *''tiw'') was a royal dynasty of China that followed the Shang dynasty. Having lasted 789 years, the Zhou dynasty was the longest dynastic regime in Chinese history. The military control of China by ...
until the end of the imperial era. There was widespread destruction of the canal system throughout the wars of the first half of the 20th century. Beginning in 1960 the network of navigable inland waterways decreased because of the construction of
dam A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use ...
s and
irrigation Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been devel ...
works and the increasing
sedimentation Sedimentation is the deposition of sediments. It takes place when particles in suspension settle out of the fluid in which they are entrained and come to rest against a barrier. This is due to their motion through the fluid in response to the ...
. But by the early 1980s, as the railroads became increasingly congested, the authorities came to see water transport as a much less expensive alternative to new road and railroad construction. The central government set out to overhaul the inefficient inland waterway system and called upon localities to play major roles in managing and financing most of the projects. By 1984 China's longest river, the
Yangtze River The Yangtze or Yangzi ( or ; ) is the longest list of rivers of Asia, river in Asia, the list of rivers by length, third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in th ...
, with a total of 70,000 kilometers of waterways open to shipping on its main stream and 3,600 kilometers on its tributaries, became the nation's busiest shipping lane, carrying 72 percent of China's total waterborne traffic. An estimated 340,000 people and 170,000 boats were engaged in the water transport business. More than 800
shipping Freight transport, also referred as ''Freight Forwarding'', is the physical process of transporting commodities and merchandise goods and cargo. The term shipping originally referred to transport by sea but in American English, it has been ...
enterprises and 60 shipping companies transported over 259 million tons of cargo on the Yangtze River and its tributaries in 1984. Nationally, in 1985 the inland waterways carried some 434 million tons of cargo. In 1986 there were approximately 138,600 kilometers of inland waterways, 79 percent of which were navigable. The Cihuai Canal in northern
Anhui Anhui , (; formerly romanized as Anhwei) is a landlocked province of the People's Republic of China, part of the East China region. Its provincial capital and largest city is Hefei. The province is located across the basins of the Yangtze River ...
opened to navigation in 1984. This 134-kilometer canal linking the Ying River, a major tributary of the
Huai River The Huai River (), formerly romanized as the Hwai, is a major river in China. It is located about midway between the Yellow River and Yangtze, the two longest rivers and largest drainage basins in China, and like them runs from west to ea ...
, with the Huai He's main course, had an annual capacity of 600,000 tons of cargo. The canal promoted the flow of goods between Anhui and neighboring provinces and helped to develop the Huai River Plain, one of China's major grain-producing areas.


Maritime shipping

During the early 1960s, China's merchant marine had fewer than thirty ships. By the 1970s and 1980s, maritime shipping capabilities had greatly increased. In 1985 China established eleven shipping offices and jointly operated shipping companies in foreign countries. In 1986 China ranked ninth in world shipping with more than 600 ships and a total
tonnage Tonnage is a measure of the cargo-carrying capacity of a ship, and is commonly used to assess fees on commercial shipping. The term derives from the taxation paid on ''tuns'' or casks of wine. In modern maritime usage, "tonnage" specifically r ...
of 16 million, including modern roll-on and roll-off ships,
container ship A container ship (also called boxship or spelled containership) is a cargo ship that carries all of its load in truck-size intermodal containers, in a technique called containerization. Container ships are a common means of commercial intermoda ...
s, large
bulk carrier A bulk carrier or bulker is a merchant ship specially designed to transport unpackaged bulk cargo — such as grains, coal, ore, steel coils, and cement — in its cargo holds. Since the first specialized bulk carrier was built in 1852, eco ...
s, refrigerator ships,
oil tanker An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined cru ...
s, and multipurpose ships. The fleet called at more than 400 ports in more than 100 countries. The container ship fleet also was expanding rapidly. In 1984 China had only fifteen container ships. Seven more were added in 1985, and an additional twenty-two were on order. By the early 1980s, Chinese
shipyards A shipyard, also called a dockyard or boatyard, is a place where ships are built and repaired. These can be yachts, military vessels, cruise liners or other cargo or passenger ships. Dockyards are sometimes more associated with maintenance a ...
had begun to manufacture a large number of ships for their own maritime fleet. The China Shipping Inspection Bureau became a member of the
Suez Canal Authority Suez Canal Authority (SCA) is an Egyptian state-owned authority which owns, operates and maintains the Suez Canal. It was set up by the Egyptian government to replace the Suez Canal Company in the 1950s which resulted in the Suez Crisis. After th ...
in 1984, empowering China to sign and issue
seaworthiness Seakeeping ability or seaworthiness is a measure of how well-suited a watercraft is to conditions when underway. A ship or boat which has good seakeeping ability is said to be very seaworthy and is able to operate effectively even in high sea stat ...
certificates for ships on the Suez Canal and confirming the good reputation and maturity of its shipbuilding industry. In 1986 China had 523 shipyards of various sizes, 160 specialized factories, 540,000 employees, and more than 80 scientific research institutes. The main shipbuilding and repairing bases of Shanghai, Dalian, Tianjin, Guangzhou, and Wuhan had 14 berths for 10,000-ton-class ships and 13 docks. The inadequacy of
port 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 H ...
and
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 ...
facilities was a longstanding problem for China but has become a more serious obstacle because of increased foreign trade. Beginning in the 1970s, the authorities gave priority to port construction. From 1972 to 1982, port traffic increased sixfold, largely because of the foreign trade boom. The imbalance between supply and demand continued to grow. Poor management and limited port facilities created such backups that by 1985 an average of 400 to 500 ships were waiting to enter major Chinese ports on any given day. The July 1985 delay of more than 500 ships, for instance, caused huge losses. All of China's major ports are undergoing some construction. To speed
economic development In the economics study of the public sector, economic and social development is the process by which the economic well-being and quality of life of a nation, region, local community, or an individual are improved according to targeted goals and ...
, the Seventh Five-Year Plan called for the construction by 1990 of 200 new berths — 120 deep-water berths for ships above 10,000 tons and 80 medium-sized berths for ships below 10,000 tons — bringing the total number of berths to 1,200. Major port facilities were developed all along China's coast.


Civil aviation

In 1987 China's
civil aviation Civil aviation is one of two major categories of flying, representing all non-military and non-state aviation, both private and commercial. Most of the countries in the world are members of the International Civil Aviation Organization and work ...
system was operated by the
General Administration of Civil Aviation of China The Civil Aviation Administration of China (CAAC; ) is the Chinese civil aviation authority under the Ministry of Transport of the People's Republic of China, Ministry of Transport. It oversees civil aviation and investigates aviation accidents ...
(CAAC). By 1987 China had more than 229,000 kilometers of domestic air routes and more than 94,000 kilometers of international air routes. The more than 9 million passengers and 102,000 tons of freight traffic represented a 40 percent growth over the previous year. The air fleet consisted of about 175
aircraft An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engine ...
and smaller
turboprop A turboprop is a turbine engine that drives an aircraft propeller. A turboprop consists of an intake, reduction gearbox, compressor, combustor, turbine, and a propelling nozzle. Air enters the intake and is compressed by the compressor. ...
transports. CAAC had 274 air routes, including 33 international flights to 28 cities in 23 countries, such as
Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and List of cities in Japan, largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, ...
,
Osaka is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the third most populous city in Japan, following Special wards of Tokyo and Yokohama. With a population of ...
,
Nagasaki is the capital and the largest Cities of Japan, city of Nagasaki Prefecture on the island of Kyushu in Japan. It became the sole Nanban trade, port used for trade with the Portuguese and Dutch during the 16th through 19th centuries. The Hi ...
,
New York City New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the Un ...
,
San Francisco San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th ...
,
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 ...
,
London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...
,
Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), ma ...
,
Frankfurt Frankfurt, officially Frankfurt am Main (; Hessian: , " Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 791,000 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located on it ...
, East Berlin, Zurich,
Moscow Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 millio ...
,
Istanbul ) , postal_code_type = Postal code , postal_code = 34000 to 34990 , area_code = +90 212 (European side) +90 216 (Asian side) , registration_plate = 34 , blank_name_sec2 = GeoTLD , blank_i ...
,
Manila Manila ( , ; fil, Maynila, ), officially the City of Manila ( fil, Lungsod ng Maynila, ), is the capital of the Philippines, and its second-most populous city. It is highly urbanized and, as of 2019, was the world's most densely populate ...
,
Bangkok Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies in the Chao Phraya River delta in central Thailand and has an estimated populati ...
,
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 ...
, Sydney, and
Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China (abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delta i ...
. Almost 200 domestic air routes connected such major cities as
Beijing } Beijing ( ; ; ), alternatively romanized as Peking ( ), is the capital of the People's Republic of China. It is the center of power and development of the country. Beijing is the world's most populous national capital city, with over 21 ...
,
Shanghai Shanghai (; , , Standard Mandarin pronunciation: ) is one of the four direct-administered municipalities of the People's Republic of China (PRC). The city is located on the southern estuary of the Yangtze River, with the Huangpu River flowin ...
,
Tianjin Tianjin (; ; Mandarin: ), alternately romanized as Tientsin (), is a municipality and a coastal metropolis in Northern China on the shore of the Bohai Sea. It is one of the nine national central cities in Mainland China, with a total popu ...
,
Guangzhou Guangzhou (, ; ; or ; ), also known as Canton () and alternatively romanized as Kwongchow or Kwangchow, is the capital and largest city of Guangdong province in southern China. Located on the Pearl River about north-northwest of Hong Kon ...
,
Hangzhou Hangzhou ( or , ; , , Standard Mandarin pronunciation: ), also romanized as Hangchow, is the capital and most populous city of Zhejiang, China. It is located in the northwestern part of the province, sitting at the head of Hangzhou Bay, whic ...
, Kunming,
Chengdu Chengdu (, ; simplified Chinese: 成都; pinyin: ''Chéngdū''; Sichuanese pronunciation: , Standard Chinese pronunciation: ), alternatively romanized as Chengtu, is a sub-provincial city which serves as the capital of the Chinese pro ...
and
Xi'an Xi'an ( , ; ; Chinese: ), frequently spelled as Xian and also known by other names, is the capital of Shaanxi Province. A sub-provincial city on the Guanzhong Plain, the city is the third most populous city in Western China, after Chongqi ...
, as well as a number of smaller cities. The government had bilateral air service agreements with more than 40 countries and working relations with approximately 386 foreign airline companies. CAAC also provided air service for
agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people t ...
,
forestry Forestry is the science and craft of creating, managing, planting, using, conserving and repairing forests, woodlands, and associated resources for human and environmental benefits. Forestry is practiced in plantations and natural stands. ...
,
communications Communication (from la, communicare, meaning "to share" or "to be in relation with") is usually defined as the transmission of information. The term may also refer to the message communicated through such transmissions or the field of inquir ...
, and
scientific research The scientific method is an empirical method for acquiring knowledge that has characterized the development of science since at least the 17th century (with notable practitioners in previous centuries; see the article history of scientific m ...
. The staff of CAAC was estimated at approximately 50,000 in the 1980s. The administration operated three training colleges to educate future
airline An airline is a company that provides air transport services for traveling passengers and freight. Airlines use aircraft to supply these services and may form partnerships or alliances with other airlines for codeshare agreements, in wh ...
personnel. In a bid to improve CAAC's services, more
ticket Ticket or tickets may refer to: Slips of paper * Lottery ticket * Parking ticket, a ticket confirming that the parking fee was paid (and the time of the parking start) * Toll ticket, a slip of paper used to indicate where vehicles entered a tol ...
offices were opened in major cities for domestic and international flights. In the mid-1980s regional airlines began operations under the general aegis of CAAC.
Wuhan Airlines Wuhan Airlines (S: 武汉航空, T: 武漢航空, P: ''Wǔhàn Hángkōng'') was an airline based in Wuhan of the People's Republic of China. In 2003, it merged into China Eastern Airlines. Historical Fleet *4 Avia 14 Registration #: B-4209, B ...
, run by the
Wuhan Wuhan (, ; ; ) is the capital of Hubei Province in the People's Republic of China. It is the largest city in Hubei and the most populous city in Central China, with a population of over eleven million, the ninth-most populous Chinese city an ...
municipal authorities, started scheduled passenger flights to
Hubei Hubei (; ; alternately Hupeh) is a landlocked province of the People's Republic of China, and is part of the Central China region. The name of the province means "north of the lake", referring to its position north of Dongting Lake. The ...
,
Hunan Hunan (, ; ) is a landlocked province of the People's Republic of China, part of the South Central China region. Located in the middle reaches of the Yangtze watershed, it borders the province-level divisions of Hubei to the north, Jiangxi ...
,
Guangdong Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) ...
, and
Sichuan Sichuan (; zh, c=, labels=no, ; zh, p=Sìchuān; alternatively romanized as Szechuan or Szechwan; formerly also referred to as "West China" or "Western China" by Protestant missions) is a province in Southwest China occupying most of the ...
provinces in May 1986.
Xizang The Tibet Autonomous Region or Xizang Autonomous Region, often shortened to Tibet or Xizang, is a province-level autonomous region of the People's Republic of China in Southwest China. It was overlayed on the traditional Tibetan regions of Ü ...
also planned to set up its own airline to fly to
Kathmandu , pushpin_map = Nepal Bagmati Province#Nepal#Asia , coordinates = , subdivision_type = Country , subdivision_name = , subdivision_type1 = Province , subdivision_name1 = Bagmati Prov ...
and
Hong Kong Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China (abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delta i ...
. In the 1980s the central government increased its investment in airport construction, and some local governments also granted special funds for such projects. Lhasa Airport in Tibet, Jiamusi Airport in Heilongjiang, and
Kashgar airport Kashgar Airport (; ug, قەشقەر ئايروپورتى, Қәшқәр Айропорт) , also known as Kashi Airport, is a dual-use military-civilian airport serving Kashgar (also known as Kashi), a city in Uyghur autonomous region of Xinjiang ...
and
Yining airport Yining Airport is an airport serving Yining (Ghulja), the capital of Ili Kazakh Autonomous Prefecture, Xinjiang, China. Facilities The airport is at an elevation of above mean sea level. It has one runway According to the Intern ...
s in
Xinjiang Xinjiang, SASM/GNC: ''Xinjang''; zh, c=, p=Xīnjiāng; formerly romanized as Sinkiang (, ), officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest ...
were expanded, and new airports were under construction in
Xi'an Xi'an ( , ; ; Chinese: ), frequently spelled as Xian and also known by other names, is the capital of Shaanxi Province. A sub-provincial city on the Guanzhong Plain, the city is the third most populous city in Western China, after Chongqi ...
,
Luoyang Luoyang is a city located in the confluence area of Luo River and Yellow River in the west of Henan province. Governed as a prefecture-level city, it borders the provincial capital of Zhengzhou to the east, Pingdingshan to the southeast, Nanyang ...
and
Shenzhen Shenzhen (; ; ; ), also historically known as Sham Chun, is a major sub-provincial city and one of the special economic zones of China. The city is located on the east bank of the Pearl River estuary on the central coast of southern province ...
. An investment of ¥500 million was planned for expanding runways and building new terminals and other airport facilities. In 1986 China had more than ninety civilian airports, of which eight could accommodate Boeing 747s and thirty-two could accommodate
Boeing 737 The Boeing 737 is a narrow-body aircraft produced by Boeing at its Boeing Renton Factory, Renton Factory in Washington (state), Washington. Developed to supplement the Boeing 727 on short and thin routes, the twinjet retains the Boeing 707, 7 ...
s and Tridents.


See also

*
Ministry of Transport of the People's Republic of China The Ministry of Transport of the People's Republic of China () is an agency responsible for railway, road, air and water transportation regulations in China. It is a constituent department of the State Council. History The MOT's origins date ...


References



{{Transport in China History of transport in China, Transport in China History of China by topic