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Zig Zag (railway)
A railway zig zag or switchback is a railway operation in which a train is required to switch its direction of travel in order to continue its journey. While this may be required purely from an operations standpoint, it is also ideal for climbing steep gradients with minimal need for tunnels and heavy earthworks. For a short distance (corresponding to the middle leg of the letter "Z"), the direction of travel is reversed, before the original direction is resumed. Some switchbacks do not come in pairs, and the train may then need to travel backwards for a considerable distance. A location on railways constructed by using a zig-zag alignment at which trains must reverse direction to continue is a reversing station. One of the best examples is the Darjeeling Himalayan Railway, a UNESCO World Heritage Site railway in India, which has six full zig zags and three Spiral (railway), spirals. Advantages Zig zags tend to be cheaper to construct because the grades required are di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zig Zag Railway At Lithgow
Zig may refer to: Places * Zığ, Baku, Azerbaijan * Zig, Iran, a village in Razavi Khorasan Province, Iran Fictional entities * Zig, the spaceship from the video game ''Zero Wing'' * Zig, one half of the puppet comedy duo puppets Zig and Zag (puppets), Zig and Zag * Zig, one of the main characters from the French comic strip ''Zig et Puce'' * Zig, one of the main characters from the French animated series ''Zig & Sharko'' * Zigs (film), ''Zigs'' (film), a 2001 gambling film directed by Mars Callahan * Zig Novak, from Degrassi: The Next Generation, Degrassi and Degrassi: Next Class People * Zig, one half of Australian comedy duo Zig and Zag (Australian performers), Zig and Zag, played by Jack Perry (1916–2006) * Zig Jackson (born 1957), Native American (Mandan/Hidatsa/Arikara) photographer * Zig Ziglar (1926–2012), American self-help author and speaker * Eliza Archard Conner (pen name Zig; 1838–1912), American writer Other uses * Ziz or Zig, a giant griffin-like bird in Jew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buffers And Chain Coupler
Buffers and chain couplers (or couplings) – also known as "buffers and screw", "screw", and "screwlink" – are the de facto International Union of Railways (UIC) standard railway coupling used in the EU and UK, and on some railways in other parts of the world, such as in South America and India, on older rolling stock. Buffers and chain couplers are an assembly of several devices: buffers, hooks and links, or turnbuckle screws. On the modern version of the couplers, rail vehicles are mated by manually connecting the end link of one chain which incorporates a turnbuckle screw into the towing hook of the other wagon, drawing together and slightly compressing the Buffer (rail transport), buffer pairs, one left and one right on each headstock. That limits slack, and lessens Shunting (rail), shunting shocks in moving trains. By contrast, vehicles fitted with the semi-automatic Janney coupler, Janney Type E coupler can experience significant jarring during mating and shunting. V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pisagua, Chile
Pisagua is a Chilean port on the Pacific Ocean, located in Huara '' comuna'' (municipality), in Tarapacá Region, northern Chile. In 2007, the new Tamarugal Province was established and the ''comuna'' of Huara, previously within the province of Iquique, was incorporated to the newly created province. Early history According to Francisco Riso Patrón, and stated in ''Diccionario Geográfico de las Provincias de Tacna y Tarapacá'', the name Pisagua has a quechua origin, meaning "place of scarce water": ''Pis'' - scarce, ''agua'' - water. Pisagua was founded in 1611 after an edict by the Viceroy of Peru which established a base from which it could be possible to stem the illegal traffic of gold and silver flowing from the important mines of Potosí and Oruro, in the Highlands of the " Audiencia of Charcas", to the British and Dutch pirates operating in the Corregimiento de Arica. Thus, Pisagua became a minor port, subjected to the major Port of San Marcos de Arica. This se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Pacific Ocean. Chile had a population of 17.5 million as of the latest census in 2017 and has a territorial area of , sharing borders with Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage to the south. The country also controls several Pacific islands, including Juan Fernández Islands, Juan Fernández, Isla Salas y Gómez, Desventuradas Islands, Desventuradas, and Easter Island, and claims about of Antarctica as the Chilean Antarctic Territory. The capital and largest city of Chile is Santiago, and the national language is Spanish language, Spanish. Conquest of Chile, Spain conquered and colonized the region in the mid-16th century, replacing Incas in Central Chile, Inca rule; however, they Arauco War ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yarloop, Western Australia
Yarloop is a town in the South West of Western Australia along the South Western Highway, between Waroona and Harvey. At the , Yarloop had a population of 395. On 7 January 2016 a bushfire destroyed most of the town. History The name Yarloop is said to have originated from the words "yard loop", the rail loop into the timber yard there. However, the name is more likely Aboriginal in origin (most likely from the local Bindjareb Noongar people). Yalup Brook is situated about north of Yarloop and there is similarity in pronunciation of the word, and the early spelling variations of the siding (Yailoup and Yarloup) support it being Aboriginal. In 1849, Joseph Logue arrived in the area and farmed at nearby Cookernup. He was followed by Eastcott, who used to collect river red gum bark and pit-sawn timber for other settlers, and John Bancells in 1886. In 1894, Charles and Edwin Millar moved into the district looking to put nearby stands of jarrah to usethey had exported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thornleigh, New South Wales
Thornleigh is a suburb in the Upper North Shore region of Sydney in the state of New South Wales, Australia. Thornleigh is located 22 kilometres north-west of the Sydney central business district in the local government area of Hornsby Shire. The source of the Lane Cove River is located in Thornleigh. Geography Thornleigh is bounded to the north by Waitara Creek and south by the Lane Cove National Park. Thornleigh borders the suburbs of Normanhurst, Hornsby, Wahroonga, Westleigh and Pennant Hills. Thornleigh offers great district views, and the topography varies greatly with many established areas built around bushland settings and into the hills to afford the great views. The northern areas of the suburb bounded by Larool Creek and Waitara Creek are leafy and lush with vegetation and native fauna including rainbow lorikeets, kookaburras, cockatoos, and bush turkeys. Majorie Headen Lookout is a vantage point which overlooks Larool and Waitara Creek Valley. The area bound ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mundaring Weir Branch Railway
The Mundaring Weir branch railway was constructed from Mundaring, Western Australia to the site of the Mundaring Weir, and opened on 1 June 1898. Overview One of the rail lines constructed by the Public Works Department in the early 20th century, the line was specifically built for the construction of the weir, and incorporated a zig zag. The line taken over by the Western Australian Government Railways some years after its construction. It was improved with ballasting and work on the line to accommodate heavier rolling stock on excursion trains. The branch was popular for picnics and excursions to the weir between the 1910s and 1940s. The current route of Mundaring Weir Road crosses the formation of the railway at two locations before the site of former No 2 Power station, and is parallel from the Weir road junction to the Mundaring Weir Hotel. Difficulties Due to the steep grades down to Mundaring Weir, a limited range of locomotives were permitted to be run on the line. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lapstone Zig Zag
The Lapstone Zig Zag was a zig zag railway built between and stations on the Main Western Line of New South Wales in Australia. Constructed between 1863 and 1865 to overcome an otherwise insurmountable climb up the eastern side of the Blue Mountains, the zig zag and associated Knapsack Viaduct, a sandstone arch viaduct, were designed by John Whitton, Engineer-in-Charge of New South Wales Government Railways, and were built by William Watkins. The zig zag was listed on the Blue Mountains local government heritage register on 27 December 1991; while the adjacent Knapsack Viaduct was listed on the New South Wales Heritage Database on 2 April 1999. The Lapstone Zig Zag was the world-first Zig Zag constructed on any main-line railway. The ruling grade was already very steep at 1 in 33 (3%). Another of the early plans had been to build the whole line across the Blue Mountains on a completely different route through the Grose Valley with a tunnel, but this was beyond the resour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Margaret Tram
The Lake Margaret Tram was located on the western side of Mount Sedgwick in the West Coast Range on the West Coast of Tasmania in service for the Mount Lyell Mining and Railway Company to the Lake Margaret community. Construction By 1903, the timber areas having been cut out around Queenstown itself, the wood cutters moved to Howard's Plains situated on the plateau north west of Queenstown. As access onto the plateau was steep, a self-acting narrow gauge dual haulage was built. From the top of the incline, a tramway was laid and was extended, over a period of time, some 4¼ miles towards Lake Margaret. Following the decision to build the Lake Margaret Power Station, the Howard's Plains Tram was extended from its then terminus at the 4¼ mile peg. Work commenced on the extension on 19 August 1912. The Howard's Plains tram was completely upgraded. The total distance from the haulage to the power station being 7 miles, including a zig zag along the line. Following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalamunda Zig Zag
The Kalamunda Zig Zag was a Zig zag (railway), zig zag rail line that was part of the Upper Darling Range railway line in Western Australia, opening in July 1891 and closing in July 1949. Most of it was converted to a public road in 1952, part of which is now a tourist drive called Zig Zag Scenic Drive that offers views of Perth from Perth Hills, the hills. History The Kalamunda Zig Zag was completed in July 1891, as part of the Upper Darling Range railway line in Western Australia, which was built by the Canning Jarrah Timber Company from a junction with the Midland line, Perth, Midland line at Midland Junction railway station, Midland Junction to Canning Mills to transport railway sleepers to Perth's growing railway system. On 1 July 1903, the line was taken over by the Western Australian Government Railways. To overcome a steep gradient up the Darling Scarp, a Zig zag (railway), zig zag was built between Ridge Hill and Gooseberry Hill stations, being cheaper to build than a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zig Zag Railway
The Zig Zag Railway is an Australian heritage railway, situated near Lithgow, New South Wales, Lithgow, New South Wales. It was opened by the not-for-profit Zig Zag Railway Co-op as an unpaid volunteer-staffed heritage railway in October 1975, using the alignment of the Lithgow Zig Zag line that formed part of the Main Western railway line, Main Western line between 1869 and 1910. The line climbs the western flank of the Blue Mountains (New South Wales), Blue Mountains, using Zig zag (railway), railway zig zags to gain height. Operation of the heritage railway was suspended in 2012 following accreditation issues with the Government of New South Wales. The railway was aiming to resume services in October 2013, but was then severely damaged during the 2013 NSW bushfires and then subsequently by torrential rain. Repairs and trials of restored rail vehicles and track commenced in August 2016 and it was planned to re-commence limited heritage operations in 2019, until the 2019–20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tren A Las Nubes
The Tren a las Nubes () is a tourist train service in Salta Province, Argentina. The service runs along the eastern part of the Salta–Antofagasta railway Main line (railway), line of the Belgrano Railway (also known as the "C-14" line) that connects the Argentine Northwest with the border in the Andes mountain range, over above mean sea level, the List of highest railways in the world, fifth highest railway in the world. Originally built for economic and social reasons, it is now primarily of interest to tourists as a heritage railway, though cheaper tickets are also available for locals to use the train as transport. Overview The railway line has 29 bridges, 21 tunnels, 13 viaducts, 2 Spiral (railway), spirals and 2 Zig zag (railway), zigzags. Because of the design decision not to use a Rack railway#Rack systems, rack-and-pinion for traction, the route had to be designed to avoid Grade (slope), steep grades. The zigzags allow the train to climb up driving back and forth paral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
