1.
Brisbane River
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The Brisbane River is the longest river in South East Queensland, Australia, and flows through the city of Brisbane, before emptying into Moreton Bay. John Oxley, the first European to explore the river, named it after the Governor of New South Wales, the penal colony of Moreton Bay later adopted the same name, eventually becoming the present city of Brisbane. Early travellers along the waterway admired the beauty, abundant fish. From 1862 the Brisbane River has been dredged for navigation purposes, the river served as an important carriageway between Brisbane and Ipswich before a railway linking the towns was built in 1875. By the late 1920s, water quality in the river had significantly deteriorated, the river travels 344 km from Mount Stanley. The river is dammed by the Wivenhoe Dam, forming Lake Wivenhoe, the waterway is a habitat for the rare Queensland lungfish, Brisbane River cod and bull sharks. The largest ship built on the river was the Robert Miller, the 66,000 tonne vessel became un-moored in the 1974 Brisbane flood. While not the highest experienced along the river since European settlement, major floods also occurred in January 2011 and multiple times during 1893. Extensive port facilities have been constructed on the Fisherman Islands, now known as the Port of Brisbane, there are 16 major bridges that cross the river. The Clem Jones Tunnel, opened in 2010, is the rivers first underground crossing for road transport, the CityCat ferry service collects and delivers passengers along the inner-city reaches of the river. Brisbane Rivers source is located in the Great Dividing Range, east of Kingaroy and it then makes its way south, past Mount Stanley, and townships including Moore and Toogoolawah before being joined by the Stanley River, just south of Somerset Dam. The river runs from there into Lake Wivenhoe, created by the Wivenhoe Dam, beyond the dam, the river meanders eastward, meeting the Bremer River near Ipswich, then making its way through Brisbanes western suburbs, including Jindalee, Indooroopilly and Toowong. The river is traversed by CityCats and other ferries in Brisbane, Water from the highest point in the catchment has fallen from Mount Langley in the Conondale Range,868 m above sea level. On the southern side of the river, opposite Gardens Point, are the Kangaroo Point Cliffs and this was in the vicinity of Edward Street ferry terminal. The volcanic rock Ignimbrite which formed the cliffs was deposited in the Triassic period about 220 million years ago and they currently form the banks of the Brisbane River. On the southside Bulimba Creek, Norman Creek, Oxley Creek, the language group common to most of the area was the Yugarabul language group. Four European navigators, namely Captain Cook, Matthew Flinders, John Bingle and William Edwardson, all visited Moreton Bay, the exploration by Flinders took place during his expedition from Port Jackson north to Hervey Bay in 1799. He spent a total of 15 days in the area, touching down at Woody Point and several other spots and this is consistent with accounts of many other rivers along the east coast of Australia, which could not be found by seaward exploration but were discovered by inland travellers
2.
Brisbane
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Brisbane is the capital of and most populous city in the Australian state of Queensland, and the third most populous city in Australia. Brisbanes metropolitan area has a population of 2.35 million, the Brisbane central business district stands on the original European settlement and is situated inside a bend of the Brisbane River, about 15 kilometres from its mouth at Moreton Bay. The demonym of Brisbane is Brisbanite, one of the oldest cities in Australia, Brisbane was founded upon the ancient homelands of the indigenous Turrbal and Jagera peoples. A penal settlement was founded in 1824 at Redcliffe,28 kilometres north of the business district. The city was marred by the Australian frontier wars between 1843 and 1855, and development was set back by the Great Fire of Brisbane. Brisbane was chosen as the capital when Queensland was proclaimed a colony from New South Wales in 1859. During World War II, Brisbane played a role in the Allied campaign. Today, Brisbane is well known for its distinct Queenslander architecture which forms much of the built heritage. It also receives attention for its damaging flood events, most notably in 1974 and 2011. Several large cultural, international and sporting events have held at Brisbane, including the 1982 Commonwealth Games, World Expo 88, the final Goodwill Games in 2001. Prior to white settlement, the Brisbane area was inhabited by the Turrbal and they knew the area that is now the central business district as Mian-jin, meaning place shaped as a spike. The Moreton Bay area was explored by Matthew Flinders. On 17 July 1799, Flinders landed at what is now known as Woody Point, in 1823 Governor of New South Wales Sir Thomas Brisbane instructed that a new northern penal settlement be developed, and an exploration party led by John Oxley further explored Moreton Bay. Oxley discovered, named, and explored the Brisbane River as far as Goodna,20 kilometres upstream from the Brisbane central business district, Oxley recommended Red Cliff Point for the new colony, reporting that ships could land at any tide and easily get close to the shore. The party settled in Redcliffe on 13 September 1824, under the command of Lieutenant Henry Miller with 14 soldiers and 29 convicts. However, this settlement was abandoned after a year and the colony was moved to a site on the Brisbane River now known as North Quay,28 km south, chief Justice Forbes gave the new settlement the name of Edenglassie before it was named Brisbane. Non-convict European settlement of the Brisbane region commenced in 1838, German missionaries settled at Zions Hill, Nundah as early as 1837, five years before Brisbane was officially declared a free settlement. The band consisted of ministers Christopher Eipper and Carl Wilhelm Schmidt and lay missionaries Haussmann, Johann Gottried Wagner, Niquet, Hartenstein, Zillman, Franz, Rode, Doege and they were allocated 260 hectares and set about establishing the mission, which became known as the German Station
3.
Queensland
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Queensland is the second-largest and third-most-populous state in the Commonwealth of Australia. Situated in the north-east of the country, it is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west, to the east, Queensland is bordered by the Coral Sea and Pacific Ocean. Queensland has a population of 4,750,500, concentrated along the coast, the state is the worlds sixth largest sub-national entity, with an area of 1,852,642 km2. The capital and largest city in the state is Brisbane, Australias third largest city, often referred to as the Sunshine State, Queensland is home to 10 of Australias 30 largest cities and is the nations third largest economy. Tourism in the state, fuelled largely by its tropical climate, is a major industry. Queensland was first inhabited by Aboriginal Australians and Torres Strait Islanders, the first European to land in Queensland was Dutch navigator Willem Janszoon in 1606, who explored the west coast of the Cape York Peninsula near present-day Weipa. In 1770, Lieutenant James Cook claimed the east coast of Australia for the Kingdom of Great Britain. The colony of New South Wales was founded in 1788 by Governor Arthur Phillip at Sydney, New South Wales at that time included all of what is now Queensland, Queensland was explored in subsequent decades until the establishment of a penal colony at Brisbane in 1824 by John Oxley. Penal transportation ceased in 1839 and free settlement was allowed from 1842, the state was named in honour of Queen Victoria, who on 6 June 1859 signed Letters Patent separating the colony from New South Wales. The 6th of June is now celebrated statewide as Queensland Day. Queensland achieved statehood with the Federation of Australia on 1 January 1901, the history of Queensland spans thousands of years, encompassing both a lengthy indigenous presence, as well as the eventful times of post-European settlement. The north-eastern Australian region was explored by Dutch, Spanish and French navigators before being encountered by Lieutenant James Cook in 1770, the Australian Labor Party has its origin as a formal organisation in Queensland and the town of Barcaldine is the symbolic birthplace of the party. June 2009 marked the 150th anniversary of its creation as a colony from New South Wales. The Aboriginal occupation of Queensland is thought to predate 50,000 BC, likely via boat or land bridge across Torres Strait, during the last ice age Queenslands landscape became more arid and largely desolate, making food and other supplies scarce. This led to the worlds first seed-grinding technology, warming again made the land hospitable, which brought high rainfall along the eastern coast, stimulating the growth of the states tropical rainforests. In February 1606, Dutch navigator Willem Janszoon landed near the site of what is now Weipa and this was the first recorded landing of a European in Australia, and it also marked the first reported contact between European and Aboriginal Australian people. The region was explored by French and Spanish explorers prior to the arrival of Lieutenant James Cook in 1770. Cook claimed the east coast under instruction from King George III of the United Kingdom on 22 August 1770 at Possession Island, naming Eastern Australia, including Queensland, the Aboriginal population declined significantly after a smallpox epidemic during the late 18th century
4.
Australia
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Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the worlds sixth-largest country by total area, the neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north, the Solomon Islands and Vanuatu to the north-east, and New Zealand to the south-east. Australias capital is Canberra, and its largest urban area is Sydney, for about 50,000 years before the first British settlement in the late 18th century, Australia was inhabited by indigenous Australians, who spoke languages classifiable into roughly 250 groups. The population grew steadily in subsequent decades, and by the 1850s most of the continent had been explored, on 1 January 1901, the six colonies federated, forming the Commonwealth of Australia. Australia has since maintained a liberal democratic political system that functions as a federal parliamentary constitutional monarchy comprising six states. The population of 24 million is highly urbanised and heavily concentrated on the eastern seaboard, Australia has the worlds 13th-largest economy and ninth-highest per capita income. With the second-highest human development index globally, the country highly in quality of life, health, education, economic freedom. The name Australia is derived from the Latin Terra Australis a name used for putative lands in the southern hemisphere since ancient times, the Dutch adjectival form Australische was used in a Dutch book in Batavia in 1638, to refer to the newly discovered lands to the south. On 12 December 1817, Macquarie recommended to the Colonial Office that it be formally adopted, in 1824, the Admiralty agreed that the continent should be known officially as Australia. The first official published use of the term Australia came with the 1830 publication of The Australia Directory and these first inhabitants may have been ancestors of modern Indigenous Australians. The Torres Strait Islanders, ethnically Melanesian, were originally horticulturists, the northern coasts and waters of Australia were visited sporadically by fishermen from Maritime Southeast Asia. The first recorded European sighting of the Australian mainland, and the first recorded European landfall on the Australian continent, are attributed to the Dutch. The first ship and crew to chart the Australian coast and meet with Aboriginal people was the Duyfken captained by Dutch navigator, Willem Janszoon. He sighted the coast of Cape York Peninsula in early 1606, the Dutch charted the whole of the western and northern coastlines and named the island continent New Holland during the 17th century, but made no attempt at settlement. William Dampier, an English explorer and privateer, landed on the north-west coast of New Holland in 1688, in 1770, James Cook sailed along and mapped the east coast, which he named New South Wales and claimed for Great Britain. The first settlement led to the foundation of Sydney, and the exploration, a British settlement was established in Van Diemens Land, now known as Tasmania, in 1803, and it became a separate colony in 1825. The United Kingdom formally claimed the part of Western Australia in 1828. Separate colonies were carved from parts of New South Wales, South Australia in 1836, Victoria in 1851, the Northern Territory was founded in 1911 when it was excised from South Australia
5.
Through arch bridge
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Cables or beams in tension suspend the central part of the deck from the arch. For a specific method, especially for masonry arches, the proportions of the arch remain similar no matter what the size. For a semi-circular arch, the height is half of the span, bridges across deep, narrow gorges can have their arch placed entirely beneath a flat roadway, but bridges in flatter country rise above their road approaches. A wide bridge may require an arch so tall as to become a significant obstacle, small bridges can be hump-backed, but larger bridges such as the Old Bridge, Pontypridd may become so steep as to require steps, making their use for wheeled traffic difficult. Railways also find arched bridges difficult as they are less tolerant of inclines. Where simple arched bridges are used for railways on flat terrain the cost of building long approach embankments may be considerable, further issues are the foundations for the bridge. Arch bridges generate large side thrusts on their footings and so may require a solid bedrock foundation, flattening the arch shape to avoid the humpback problem, such as for Brunels Maidenhead bridge, increases this side thrust. It is often impossible to achieve a flat arch, simply owing to the limitations of the foundations - particularly in flat country. Historically, such bridges often became viaducts of multiple small arches, with the availability of iron or concrete as structural materials, it became possible to construct a through arch bridge, a bridge where the deck does not have to be carried over the top of the arch. This requires a structure that can support the deck from the arch by tension rods, chains or cables and allow a gap in the arch. The first of these in particular cannot be achieved with masonry construction, the arch may also reach downwards at its sides, to either reach strong foundations or to place the roadway at a convenient height for spanning a deep valley from a plateau above. The Tyne Bridge demonstrates both of these advantages, a well-known example of this type is the Sydney Harbour Bridge in Australia, which is based on the Hell Gate Bridge in New York City. Wylam Railway Bridge is an early through arch bridge upstream of the Tyne Bridge, the through arch bridge usually consists of two ribs, although there are examples like the Hulme Arch Bridge of through arches with a single rib. When the two arches are built in parallel planes, the structure is a parallel rib arch bridge, when the two arch ribs lean together and shorten the distance between the arches near the top, the span is a basket handle arch bridge. Many tied-arch bridges are also through-arch bridges, as well as tying the side-loads of the arch, the tension member is also at a convenient height to form the bridge deck, as for a through-arch. The converse is not true, through-arch bridges do not imply that they are tied-arch bridges, although visually similar, tied- and untied- through-arch bridges are quite distinct structurally and are unrelated in how they distribute their loads. In particular, cast iron bridges such as the Stanley Ferry Aqueduct may resemble tied-arch bridges, in some locations it is not practical to support the arch from beneath during construction. In modern construction, temporary towers are erected and supported by cables anchored in the ground, temporary cables fly from each side to support arch segments as they are constructed
6.
Double-track railway
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A double-track railway usually involves running one track in each direction, compared to a single-track railway where trains in both directions share the same track. In the earliest days of railways in the United Kingdom, most lines were built as double-track because of the difficulty of co-ordinating operations before the invention of the telegraph, the lines also tended to be busy enough to be beyond the capacity of a single track. In the early days the Board of Trade did not consider any single-track railway line to be complete and this improved with the development of the telegraph and the train order system. In any given country, rail traffic generally runs to one side of a double-track line, thus in Belgium, China, France, Sweden, Switzerland and Italy for example, the railways use left-hand running, while the roads use right-hand running. In countries such as Indonesia, it is the reverse, on the French-German border, for example, flyovers were provided so that train moving on the left in France end up on the right in Germany and vice versa. Handedness of traffic can affect locomotive design, for the driver, visibility is good from both sides of the driving cab so the choice on which side to site the driver less important. For example, the French SNCF Class BB7200 is designed for using the left-hand track, generally, the left/right principle in a country is followed mostly on double track. On single track, when trains meet, the train that shall not stop uses the straight path in the turnout. Double-track railways, especially older ones, may use each track exclusively in one direction and this arrangement simplifies the signalling systems, especially where the signalling is mechanical. Where the signals and points or rail switches are power-operated, it can be worthwhile to signal each line in both directions, so that the line becomes a pair of single lines. This allows trains to use one track where the track is out of service due to track maintenance work, or a train failure. Most crossing loops are not regarded as even though they consist of multiple tracks. If the crossing loop is long enough to several trains. A more modern British term for such a layout is an extended loop, the distance between the track centres makes a difference in cost and performance of a double-track line. The track centres can be as narrow and as cheap as possible, signals for bi-directional working cannot be mounted between the tracks so must be mounted on the wrong side of the line or on expensive signal bridges. Track centres are usually wider on high speed lines, as pressure waves knock each other as high-speed trains pass, narrow track centres might be 4 metres or less. Narrow track centres may have to be widened on sharp curves to allow for rail vehicles following the arc of the curve. Widening a track centre to 5 metres or so suits high-speed trains passing each other, increasing width of track centres of 6 metres or more makes it much easier to mount signals and overhead wiring structures
