Hunting is the practice of killing or trapping animals, or pursuing or tracking them with the intent of doing so. Hunting wildlife or feral animals is most done by humans for food, recreation, to remove predators that can be dangerous to humans or domestic animals, or for trade. Lawful hunting is distinguished from poaching, the illegal killing, trapping or capture of the hunted species; the species that are hunted are referred to as game or prey and are mammals and birds. Hunting has long been a practice used to procure meat for human consumption; the meat from a healthy wild animal that has lived its life and on a natural diet of plants has a higher nutritional quality than that of a domestic animal, raised in an unnatural way. Hunting an animal for its meat can be seen as a more natural way to obtain animal protein since regulated hunting does not cause the same environmental issues as raising domestic animals for meat on factory farms. Hunting can be a means of pest control. Hunting advocates state that hunting can be a necessary component of modern wildlife management, for example, to help maintain a population of healthy animals within an environment's ecological carrying capacity when natural checks such as predators are absent or rare.
However, excessive hunting has heavily contributed to the endangerment and extinction of many animals. The pursuit and release, or capture for food of fish is called fishing, not categorised as a form of hunting, it is not considered hunting to pursue animals without intent to kill them, as in wildlife photography, birdwatching, or scientific research activities which involve tranquilizing or tagging of animals or birds. The practice of foraging or gathering materials from plants and mushrooms is considered separate from hunting. Skillful tracking and acquisition of an elusive target has caused the word hunt to be used in the vernacular as a metaphor, as in treasure hunting, "bargain hunting", "hunting down" corruption and waste. Animal rights activists argue that hunting is cruel and unethical; the word hunt serves as a verb. The noun has been dated to the early 12th century, "act of chasing game," from the verb hunt. Old English had huntung, huntoþ; the meaning of "a body of persons associated for the purpose of hunting with a pack of hounds" is first recorded in the 1570s.
Meaning "the act of searching for someone or something" is from about 1600. The verb, Old English huntian "to chase game" developed from hunta "hunter," is related to hentan "to seize," from Proto-Germanic huntojan, of uncertain origin; the general sense of "search diligently" is first recorded c. 1200. Hunting has a long history, it pre-dates the emergence of Homo sapiens and may predate genus Homo. The oldest undisputed evidence for hunting dates to the Early Pleistocene, consistent with the emergence and early dispersal of Homo erectus, about 1.7 million years ago. While it is undisputed that Homo erectus were hunters, the importance of this for the emergence of Homo erectus from its australopithecine ancestors, including the production of stone tools and the control of fire, is emphasised in the so-called "hunting hypothesis" and de-emphasised in scenarios that stress omnivory and social interaction. There is no direct evidence for hunting predating Homo erectus, in either Homo habilis or in Australopithecus.
The early hominid ancestors of humans were frugivores or omnivores, with a carnivore diet from scavenging rather than hunting. Evidence for australopithecine meat consumption was presented in the 1990s, it has often been assumed that at least occasional hunting behavior may have been present well before the emergence of Homo. This can be argued on the basis of comparison with chimpanzees, the closest extant relatives of humans, who engage in hunting, indicating that the behavioral trait may have been present in the Chimpanzee–human last common ancestor as early as 5 million years ago; the common chimpanzee engages in troop predation behaviour where bands of beta males are led by an alpha male. Bonobos have been observed to engage in group hunting, although more than Pan troglodytes subsisting on a frugivorous diet. Indirect evidence for Oldowan era hunting, by early Homo or late Australopithecus, has been presented in a 2009 study based on an Oldowan site in southwestern Kenya. Louis Binford criticised the idea that early humans were hunters.
On the basis of the analysis of the skeletal remains of the consumed animals, he concluded that hominids and early humans were scavengers, not hunters, Blumenschine proposed the idea of confrontational scavenging, which involves challenging and scaring off other predators after they have made a kill, which he suggests could have been the leading method of obtaining protein-rich meat by early humans. Stone spearheads dated as early as 500,000 years ago were found in South Africa. Wood does not preserve well and Craig Stanford, a primatologist and professor of anthropology at the University of Southern California, has suggested that the discovery of spear use by chimpanzees means that early humans used wooden spears as well five million years ago; the earliest dated find of surviving wooden hunting spears dates to the end of the Lower Paleolithic, just before 300,000 years ago. The Schöningen spears, found in 1976 in Germany, are
Construction is the process of constructing a building or infrastructure. Construction differs from manufacturing in that manufacturing involves mass production of similar items without a designated purchaser, while construction takes place on location for a known client. Construction as an industry comprises six to nine percent of the gross domestic product of developed countries. Construction starts with planning and financing. Large-scale construction requires collaboration across multiple disciplines. A project manager manages the job, a construction manager, design engineer, construction engineer or architect supervises it; those involved with the design and execution must consider zoning requirements, environmental impact of the job, budgeting, construction-site safety and transportation of building materials, inconvenience to the public caused by construction delays and bidding. Large construction projects are sometimes referred to as megaprojects. Construction is a general term meaning the art and science to form objects, systems, or organizations, comes from Latin constructio and Old French construction.
To construct is the verb: the act of building, the noun construction: how a building was built, the nature of its structure. In general, there are three sectors of construction: buildings and industrial. Building construction is further divided into residential and non-residential. Infrastructure is called heavy civil or heavy engineering that includes large public works, bridges, railways, water or wastewater and utility distribution. Industrial construction includes refineries, process chemical, power generation and manufacturing plants. There are other ways to break the industry into sectors or markets. Engineering News-Record, a trade magazine for the construction industry, each year compiles and reports data about the size of design and construction companies. In 2014, ENR compiled the data in nine market segments divided as transportation, buildings, industrial, manufacturing, sewer/waste, hazardous waste and a tenth category for other projects. In their reporting, they used data on transportation, hazardous waste and water to rank firms as heavy contractors.
The Standard Industrial Classification and the newer North American Industry Classification System have a classification system for companies that perform or engage in construction. To recognize the differences of companies in this sector, it is divided into three subsectors: building construction and civil engineering construction, specialty trade contractors. There are categories for construction service firms and construction managers. Building construction is the process of adding structure to real property or construction of buildings; the majority of building construction jobs are small renovations, such as addition of a room, or renovation of a bathroom. The owner of the property acts as laborer and design team for the entire project. Although building construction projects consist of common elements such as design, financial and legal considerations, projects of varying sizes may reach undesirable end results, such as structural collapse, cost overruns, and/or litigation. For this reason, those with experience in the field make detailed plans and maintain careful oversight during the project to ensure a positive outcome.
Commercial building construction is procured or publicly utilizing various delivery methodologies, including cost estimating, hard bid, negotiated price, management contracting, construction management-at-risk, design & build and design-build bridging. Residential construction practices and resources must conform to local building authority regulations and codes of practice. Materials available in the area dictate the construction materials used. Cost of construction on a per square meter basis for houses can vary based on site conditions, local regulations, economies of scale and the availability of skilled tradesmen. Residential construction as well as other types of construction can generate waste such that planning is required. According to McKinsey research, productivity growth per worker in construction has lagged behind many other industries across different countries including in the United States and in European countries. In the United States, construction productivity per worker has declined by half since the 1960s.
The most popular method of residential construction in North America is wood-framed construction. Typical construction steps for a single-family or small multi-family house are: Obtain an engineered soil test of lot where construction is planned. From an engineer or company specializing in soil testing. Develop floor plans and obtain a materials list for estimations Obtain structural engineered plans for foundation and structure. To be completed by either a licensed engineer or architect. To include both a foundation and framing plan. Obtain lot survey Obtain government building approval if necessary If required obtain approval from HOA or ARC Clear the building site Survey to stake out for the foun
A quarry is a type of open-pit mine in which dimension stone, construction aggregate, sand, gravel, or slate is excavated from the ground. The word quarry can include the underground quarrying for stone, such as Bath stone. Types of rock extracted from quarries include: Chalk China clay Cinder Clay Coal Construction aggregate Coquina Diabase Gabbro Granite Gritstone Gypsum Limestone Marble Ores Phosphate rock Quartz Sandstone Slate Many quarry stones such as marble, granite and sandstone are cut into larger slabs and removed from the quarry; the surfaces finished with varying degrees of sheen or luster. Polished slabs are cut into tiles or countertops and installed in many kinds of residential and commercial properties. Natural stone quarried from the earth is considered a luxury and tends to be a durable surface, thus desirable. Quarries in level areas with shallow groundwater or which are located close to surface water have engineering problems with drainage; the water is removed by pumping while the quarry is operational, but for high inflows more complex approaches may be required.
For example, the Coquina quarry is excavated to more than 60 feet below sea level. To reduce surface leakage, a moat lined with clay was constructed around the entire quarry. Ground water entering the pit is pumped up into the moat; as a quarry becomes deeper, water inflows increase and it becomes more expensive to lift the water higher during removal. Some water-filled quarries are worked by dredging. Many people and municipalities consider quarries to be eyesores and require various abatement methods to address problems with noise and appearance. One of the more effective and famous examples of successful quarry restoration is Butchart Gardens in Victoria, BC, Canada. A further problem is pollution of roads from trucks leaving the quarries. To control and restrain the pollution of public roads, wheel washing systems are becoming more common. Many quarries fill with water after abandonment and become lakes. Others are made into landfills. Water-filled quarries can be deep 50 ft or more, cold, so swimming in quarry lakes is not recommended.
Unexpectedly cold water can cause a swimmer's muscles to weaken. Though quarry water is very clear, submerged quarry stones and abandoned equipment make diving into these quarries dangerous. Several people drown in quarries each year. However, many inactive quarries are converted into safe swimming sites; such lakes lakes within active quarries, can provide important habitat for animals. Clay pit Coal mining Collecting fossils Gravel pit List of minerals List of rock types List of stones Miner Mountaintop removal mining Opencast mining Quarry lake Quarries
Office of Management and Budget
The Office of Management and Budget is the largest office within the Executive Office of the President of the United States. OMB's most prominent function is to produce the President's Budget, but OMB measures the quality of agency programs and procedures to see if they comply with the president's policies and coordinates inter-agency policy initiatives. While the current OMB Director is Mick Mulvaney, he is also the acting White House Chief of Staff. Many of his duties and responsibilities have been assigned to Deputy Director Russell Vought; the OMB Director reports to Vice President and the White House Chief of Staff. The Bureau of the Budget, OMB's predecessor, was established in 1921 as a part of the Department of the Treasury by the Budget and Accounting Act of 1921, signed into law by president Warren G. Harding; the Bureau of the Budget was moved to the Executive Office of the President in 1939 and was run by Harold D. Smith during the government's rapid expansion of spending during the Second World War.
James L. Sundquist, a staffer at the Bureau of the Budget described the relationship between the President and the Bureau as close and of subsequent Bureau Directors as politicians and not public administrators; the Bureau was reorganized into the Office of Management and Budget in 1970 during the Nixon administration. The first OMB included two dozen others. In the 1990s, OMB was reorganized to remove the distinction between management staff and budgetary staff by combining the dual roles into each given program examiner within the Resource Management Offices. OMB prepares the President's budget proposal to Congress and supervises the administration of the executive branch agencies. OMB evaluates the effectiveness of agency programs and procedures, assesses competing funding demands among agencies, sets funding priorities. OMB ensures that agency reports, rules and proposed legislation are consistent with the president's budget and with administration policies. OMB oversees and coordinates the administration's procurement, financial management and regulatory policies.
In each of these areas, OMB's role is to help improve administrative management, to develop better performance measures and coordinating mechanisms, to reduce any unnecessary burdens on the public. OMB's critical missions are: Budget development and execution is a prominent government-wide process managed from the Executive Office of the President and a device by which a president implements his policies and actions in everything from the Department of Defense to NASA. OMB manages other agencies' financials, IT; the Office is made up of career appointed staff who provide continuity across changes of party and persons in the White House. Six positions within OMB – the Director, the Deputy Director, the Deputy Director for Management, the administrators of the Office of Information and Regulatory Affairs, the Office of Federal Procurement Policy, the Office of Federal Financial Management are presidentially appointed and Senate-confirmed positions; the largest component of the Office of Management and Budget are the five Resource Management Offices which are organized along functional lines mirroring the U.
S. federal government, each led by an OMB associate director. Half of all OMB staff are assigned to these offices, the majority of whom are designated as program examiners. Program examiners can be assigned to monitor one or more federal agencies or may be deployed by a topical area, such as monitoring issues relating to U. S. Navy warships; these staff have dual responsibility for both management and budgetary issues, as well as responsibility for giving expert advice on all aspects relating to their programs. Each year they review federal agency budget requests and help decide what resource requests will be sent to Congress as part of the president's budget, they perform in-depth program evaluations using the Program Assessment Rating Tool, review proposed regulations, agency testimony, analyze pending legislation, oversee the aspects of the president's management agenda including agency management scorecards. They are called upon to provide analysis information to any EOP staff member, they provide important information to those assigned to the statutory offices within OMB, which are Office of Information and Regulatory Affairs, the Office of Federal Procurement Policy, the Office of Federal Financial Management, the Office of E-Government & Information Technology whose job it is to specialize in issues such as federal regulations or procurement policy and law.
Other offices are OMB-wide support offices which include the Office of General Counsel, the Office of Legislative Affairs, the Budget Review Division, the Legislative Reference Division. The BRD performs government-wide budget coordination and is responsible for the technical aspects relating to the release of the president's budget each February. With respect to the estimation of spending for the executive branch, the BRD serves a purpose parallel to that of the Congressional Budget Office for the estimation of spending for Congress, the Department of the Treasury for the estimation of revenues for the executive branch, the Joint Committee on Taxation for the estimation of revenues for Congress; the Legislative Reference Division has the important role of being the central clearing house across the federal government for proposed legislation or testimony by federal officials. It distributes proposed legislation and testimony to all relevant federal reviewers and distils the comments into a consensus opinion of the
Finance is a field, concerned with the allocation of assets and liabilities over space and time under conditions of risk or uncertainty. Finance can be defined as the art of money management. Participants in the market aim to price assets based on their risk level, fundamental value, their expected rate of return. Finance can be split into three sub-categories: public finance, corporate finance and personal finance. Matters in personal finance revolve around: Protection against unforeseen personal events, as well as events in the wider economies Transference of family wealth across generations Effects of tax policies management of personal finances Effects of credit on individual financial standing Development of a savings plan or financing for large purchases Planning a secure financial future in an environment of economic instability Pursuing a checking and/or a savings account Personal finance may involve paying for education, financing durable goods such as real estate and cars, buying insurance, e.g. health and property insurance and saving for retirement.
Personal finance may involve paying for a loan, or debt obligations. The six key areas of personal financial planning, as suggested by the Financial Planning Standards Board, are: Financial position: is concerned with understanding the personal resources available by examining net worth and household cash flows. Net worth is a person's balance sheet, calculated by adding up all assets under that person's control, minus all liabilities of the household, at one point in time. Household cash flows total up all from the expected sources of income within a year, minus all expected expenses within the same year. From this analysis, the financial planner can determine to what degree and in what time the personal goals can be accomplished. Adequate protection: the analysis of how to protect a household from unforeseen risks; these risks can be divided into the following: liability, death, disability and long term care. Some of these risks may be self-insurable, while most will require the purchase of an insurance contract.
Determining how much insurance to get, at the most cost effective terms requires knowledge of the market for personal insurance. Business owners, professionals and entertainers require specialized insurance professionals to adequately protect themselves. Since insurance enjoys some tax benefits, utilizing insurance investment products may be a critical piece of the overall investment planning. Tax planning: the income tax is the single largest expense in a household. Managing taxes is not a question of if you will pay taxes, but when and how much. Government gives many incentives in the form of tax deductions and credits, which can be used to reduce the lifetime tax burden. Most modern governments use a progressive tax; as one's income grows, a higher marginal rate of tax must be paid. Understanding how to take advantage of the myriad tax breaks when planning one's personal finances can make a significant impact in which can save you money in the long term. Investment and accumulation goals: planning how to accumulate enough money – for large purchases and life events – is what most people consider to be financial planning.
Major reasons to accumulate assets include purchasing a house or car, starting a business, paying for education expenses, saving for retirement. Achieving these goals requires projecting what they will cost, when you need to withdraw funds that will be necessary to be able to achieve these goals. A major risk to the household in achieving their accumulation goal is the rate of price increases over time, or inflation. Using net present value calculators, the financial planner will suggest a combination of asset earmarking and regular savings to be invested in a variety of investments. In order to overcome the rate of inflation, the investment portfolio has to get a higher rate of return, which will subject the portfolio to a number of risks. Managing these portfolio risks is most accomplished using asset allocation, which seeks to diversify investment risk and opportunity; this asset allocation will prescribe a percentage allocation to be invested in stocks, bonds and alternative investments.
The allocation should take into consideration the personal risk profile of every investor, since risk attitudes vary from person to person. Retirement planning is the process of understanding how much it costs to live at retirement, coming up with a plan to distribute assets to meet any income shortfall. Methods for retirement plans include taking advantage of government allowed structures to manage tax liability including: individual structures, or employer sponsored retirement plans and life insurance products. Estate planning involves planning for the disposition of one's assets after death. There is a tax due to the state or federal government at one's death. Avoiding these taxes means that more of one's assets will be distributed to one's heirs. One can leave one's assets to friends or charitable groups. Corporate finance deals with the sources of funding and the capital structure of corporations, the actions that managers take to increase the value of the firm to the shareholders, the tools and analysis used to allocate financial resources.
Although it is in principle different from managerial finance which studies the financial management of all firms, rather than corporations alone, the main concepts in the study of corporate finance are applicable to the financial problems of all kinds of firms. Corporate f
Mining is the extraction of valuable minerals or other geological materials from the earth from an ore body, vein, reef or placer deposit. These deposits form a mineralized package, of economic interest to the miner. Ores recovered by mining include metals, oil shale, limestone, dimension stone, rock salt, potash and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or water. Mining of stones and metal has been a human activity since pre-historic times. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, final reclamation of the land after the mine is closed. De Re Metallica, Georgius Agricola, 1550, Book I, Para. 1Mining operations create a negative environmental impact, both during the mining activity and after the mine has closed.
Hence, most of the world's nations have passed regulations to decrease the impact. Work safety has long been a concern as well, modern practices have improved safety in mines. Levels of metals recycling are low. Unless future end-of-life recycling rates are stepped up, some rare metals may become unavailable for use in a variety of consumer products. Due to the low recycling rates, some landfills now contain higher concentrations of metal than mines themselves. Since the beginning of civilization, people have used stone and metals found close to the Earth's surface; these were used to make early weapons. Flint mines have been found in chalk areas where seams of the stone were followed underground by shafts and galleries; the mines at Grimes Graves and Krzemionki are famous, like most other flint mines, are Neolithic in origin. Other hard rocks mined or collected for axes included the greenstone of the Langdale axe industry based in the English Lake District; the oldest-known mine on archaeological record is the Ngwenya Mine in Swaziland, which radiocarbon dating shows to be about 43,000 years old.
At this site Paleolithic humans mined hematite to make the red pigment ochre. Mines of a similar age in Hungary are believed to be sites where Neanderthals may have mined flint for weapons and tools. Ancient Egyptians mined malachite at Maadi. At first, Egyptians used the bright green malachite stones for ornamentations and pottery. Between 2613 and 2494 BC, large building projects required expeditions abroad to the area of Wadi Maghareh in order to secure minerals and other resources not available in Egypt itself. Quarries for turquoise and copper were found at Wadi Hammamat, Tura and various other Nubian sites on the Sinai Peninsula and at Timna. Mining in Egypt occurred in the earliest dynasties; the gold mines of Nubia were among the largest and most extensive of any in Ancient Egypt. These mines are described by the Greek author Diodorus Siculus, who mentions fire-setting as one method used to break down the hard rock holding the gold. One of the complexes is shown in one of the earliest known maps.
The miners crushed the ore and ground it to a fine powder before washing the powder for the gold dust. Mining in Europe has a long history. Examples include the silver mines of Laurium. Although they had over 20,000 slaves working them, their technology was identical to their Bronze Age predecessors. At other mines, such as on the island of Thassos, marble was quarried by the Parians after they arrived in the 7th century BC; the marble was shipped away and was found by archaeologists to have been used in buildings including the tomb of Amphipolis. Philip II of Macedon, the father of Alexander the Great, captured the gold mines of Mount Pangeo in 357 BC to fund his military campaigns, he captured gold mines in Thrace for minting coinage producing 26 tons per year. However, it was the Romans who developed large scale mining methods the use of large volumes of water brought to the minehead by numerous aqueducts; the water was used for a variety of purposes, including removing overburden and rock debris, called hydraulic mining, as well as washing comminuted, or crushed and driving simple machinery.
The Romans used hydraulic mining methods on a large scale to prospect for the veins of ore a now-obsolete form of mining known as hushing. They built numerous aqueducts to supply water to the minehead. There, the water stored in large tanks; when a full tank was opened, the flood of water sluiced away the overburden to expose the bedrock underneath and any gold veins. The rock was worked upon by fire-setting to heat the rock, which would be quenched with a stream of water; the resulting thermal shock cracked the rock, enabling it to be removed by further streams of water from the overhead tanks. The Roman miners used similar methods to work cassiterite deposits in Cornwall and lead ore in the Pennines; the methods had been developed by the Romans in Spain in 25 AD to exploit large alluvial gold deposits, the largest site being at Las Medulas, where seven long aqueducts tapped local rivers and sluiced the deposits. Spain was one of the most important mining regions, but all regions of the Roman Empire were exploited.
In Great Britain the natives had mined minerals for millennia, but after the Roman conquest, the scale of the operations increased as the Romans needed Britannia's resources gold, silver
Transport or transportation is the movement of humans and goods from one location to another. In other words the action of transport is defined as a particular movement of an organism or thing from a point A to the Point B. Modes of transport include air, water, cable and space; the field can be divided into infrastructure and operations. Transport is important because it enables trade between people, essential for the development of civilizations. Transport infrastructure consists of the fixed installations, including roads, airways, waterways and pipelines and terminals such as airports, railway stations, bus stations, trucking terminals, refueling depots and seaports. Terminals may be used both for maintenance. Vehicles traveling on these networks may include automobiles, buses, trucks, watercraft and aircraft. Operations deal with the way the vehicles are operated, the procedures set for this purpose, including financing and policies. In the transport industry and ownership of infrastructure can be either public or private, depending on the country and mode.
Passenger transport may be public. Freight transport has become focused on containerization, although bulk transport is used for large volumes of durable items. Transport plays an important part in economic growth and globalization, but most types cause air pollution and use large amounts of land. While it is subsidized by governments, good planning of transport is essential to make traffic flow and restrain urban sprawl. Humans' first means of transport involved walking and swimming; the domestication of animals introduced a new way to lay the burden of transport on more powerful creatures, allowing the hauling of heavier loads, or humans riding animals for greater speed and duration. Inventions such as the wheel and the sled helped make animal transport more efficient through the introduction of vehicles. Water transport, including rowed and sailed vessels, dates back to time immemorial, was the only efficient way to transport large quantities or over large distances prior to the Industrial Revolution.
The first forms of road transport involved animals, such as horses, oxen or humans carrying goods over dirt tracks that followed game trails. Many early civilizations, including those in Mesopotamia and the Indus Valley, constructed paved roads. In classical antiquity, the Persian and Roman empires built stone-paved roads to allow armies to travel quickly. Deep roadbeds of crushed stone underneath kept such roads dry; the medieval Caliphate built tar-paved roads. The first watercraft were canoes cut out from tree trunks. Early water transport was accomplished with ships that were either rowed or used the wind for propulsion, or a combination of the two; the importance of water has led to most cities that grew up as sites for trading being located on rivers or on the sea-shore at the intersection of two bodies of water. Until the Industrial Revolution, transport remained slow and costly, production and consumption gravitated as close to each other as feasible; the Industrial Revolution in the 19th century saw a number of inventions fundamentally change transport.
With telegraphy, communication became independent of the transport of physical objects. The invention of the steam engine followed by its application in rail transport, made land transport independent of human or animal muscles. Both speed and capacity increased allowing specialization through manufacturing being located independently of natural resources; the 19th century saw the development of the steam ship, which sped up global transport. With the development of the combustion engine and the automobile around 1900, road transport became more competitive again, mechanical private transport originated; the first "modern" highways were constructed during the 19th century with macadam. Tarmac and concrete became the dominant paving materials. In 1903 the Wright brothers demonstrated the first successful controllable airplane, after World War I aircraft became a fast way to transport people and express goods over long distances. After World War II the automobile and airlines took higher shares of transport, reducing rail and water to freight and short-haul passenger services.
Scientific spaceflight began in the 1950s, with rapid growth until the 1970s, when interest dwindled. In the 1950s the introduction of containerization gave massive efficiency gains in freight transport, fostering globalization. International air travel became much more accessible in the 1960s with the commercialization of the jet engine. Along with the growth in automobiles and motorways and water transport declined in relative importance. After the introduction of the Shinkansen in Japan in 1964, high-speed rail in Asia and Europe started attracting passengers on long-haul routes away from the airlines. Early in U. S. history, private joint-stock corporations owned most aqueducts, canals, railroads and tunnels. Most such transport infrastructure came under government control in the late 19th and early 20th centuries, culminating in the nationalization of inter-city passenger rail-service with the establishment of Amtrak. However, a movement to privatize roads and other infrastructure has gained some ground and adherents.
A mode of transport is a solution that makes use of a particular type of vehicle and operation. The transport of a person or of cargo may invol