1.
Urban Transportation Development Corporation
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The Urban Transportation Development Corporation Ltd. was a Crown corporation owned by the Government of Ontario, Canada. It was created in the 1970s as a way to enter what was expected to be a burgeoning market in advanced light rail mass transit systems. UTDC built a team of engineers and project managers. It developed significant expertise in linear propulsion, steerable trucks and driverless system controls which were integrated into a system known as the Intermediate Capacity Transit System. Urban Transportation Development Corporation Ltd. was a holding company, during its time it held several wholly owned subsidiary companies, Metro Canada Ltd. was established as the contracting, delivery and operating company for system sales. UTDC USA Inc. was a company located in Detroit. UTDC Services Inc. provided transit service consulting to international clients, UTDC Research and Development Ltd. was formed to support the continuing improvement of the group’s base technology, and to repurpose it and apply it to different, non-transit markets. Buses that ran on rails, materials handling systems, steerable trucks for freight rail cars, the Services and R&D companies were merged in the mid-1980s to form Transportation Technology Ltd. The Intermediate Capacity Transit System was sold into three markets, the Toronto Transit Commission for its Scarborough RT line, Detroits Detroit People Mover, and Vancouvers SkyTrain system. Now armed with a portfolio from light to heavy rail, UTDC had a number of additional successes in North America. It was privatized in the 1980s, when it was purchased by Lavalin of Quebec, the UTDC factories in Kingston and Thunder Bay continue to produce rapid transit systems for use in Ontario and abroad. Toronto grew extensively during the 1960s and 1970s, and like many cities in North America, most of this growth was in the suburbs. In order to move workers to and from the business and industrial areas in the city centre, an series of expressways was planned. As work on the new highways started, a wave of public protest followed as many houses, the work became increasingly opposed in Toronto, especially after the cause was taken up by famous urban commentator, Jane Jacobs. In 1971 Bill Davis won the Progressive Conservative Party of Ontario leadership contest, if we are building a transportation system to serve the automobile, the Spadina Expressway would be a good place to start. But if we are building a system to serve people. Davis felt that the future of urban transit lay not in the automobile, in keeping with this, the street portion of the Spadina Expressway was cancelled in 1971, but full funding remained for the Spadina subway line that shared the same right-of-way. However, subways were suitable only for high-density routes that could afford to pay for their construction and operation
2.
Bombardier Innovia Metro
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Innovia Metro is the current name given to an automated rapid transit system manufactured by Bombardier Transportation. A new version of the technology being marketed by Bombardier is compatible with standard electric rotary propulsion, the design was originally developed in the 1970s by the Urban Transportation Development Corporation, a Crown corporation owned by the government of Ontario, Canada. During development the system was known as the ICTS, sales of the ICTS were made for metro lines in Vancouver, Toronto and Detroit. Further sales were not forthcoming and the Ontario government lost interest in the company, Lavalin ran into serious financial difficulties and the UTDC returned to Ontario control, only to be immediately sold to Bombardier. Bombardier used the name Advanced Rapid Transit after its acquisition of the technology, the latest version of the technology is being marketed as the Innovia Metro, while previous models are retroactively branded as Innovia ART. The largest Innovia Metro system today is part of the Vancouver SkyTrain metro network and it operates just under 50 km of track compatible with Innovia Metro trains. Vancouver was the first to order INNOVIA Metro 300 vehicles, since then vehicle orders for the latest INNOVIA Metro technology has been made by transit authorities in Kuala Lumpur and Riyadh. During the 1950s, Toronto experienced the sort of urban sprawl that was sweeping through the United States. This caused enormous traffic problems within the city, and a network of new highways to address the problem became part of the Official Plan in 1959, activists such as Jane Jacobs successfully rallied local groups to oppose development of the Spadina Expressway project. The government reconsidered and cancelled the construction of the Spadina Expressway, instead of expressways, Davis and his new Minister of Transport, William Goodfellow, outlined the GO-Urban plan. GO-Urban called for a system of three advanced mass transit lines that would be run by the newly formed GO Transit. The idea was to select a system with low costs, one that would be cost effective in low-density areas where a traditional subway would be too expensive to build. Designed to have a design capacity half-way between buses and subways, the new system was referred to as the Intermediate Capacity Transit System or ICTS, the space age automated guideway transit systems being designed in the late 1960s seemed like the right solution. Toronto was not the city looking for such a solution. As GO-Urban was larger than most networks being considered, practically every company working on an AGT, or hoping to, the first cut reduced the field to a still-large fourteen proposals. After a year-long selection process, GO selected the Krauss-Maffei Transurban maglev as the preferred solution, as a maglev, the system would be silent, addressing concerns about noise on elevated portions of the track. Additionally, the linear induction motor did not require physical contact for traction. Krauss-Maffei agreed to do all vehicle construction in Ontario, and allow the local office to handle all efforts in North America - a stipulation most US companies were not willing to agree to
3.
Toronto Transit Commission
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The Toronto Transit Commission is a public transport agency that operates bus, rapid transit, streetcar, and paratransit services in Toronto, Ontario, Canada. Established in 1921, the TTC comprises four rapid transit lines with 69 stations, over 149 bus routes, and 10 streetcar lines. In 4th quarter 2012, the daily ridership was 2.76 million passengers,1,425,300 by bus,271,100 by streetcar,46,400 by intermediate rail. The TTC also operates paratransit service for the elderly and disabled. The TTC is the third most heavily used urban mass transit system in North America, after the New York City Transit Authority, public transit in Toronto started in 1849 with a privately operated transit service. In later years, the city operated some routes, but in 1921 assumed control over all routes, during this period, streetcars provided the bulk of the service. In 1954, the TTC adopted its present name, opened the first subway line, the system has evolved to feature a wide network of surface routes with the subway lines as the backbone. On February 17,2008, the TTC made many improvements, finally reversing more than a decade of service reductions. The Gloucester subway cars, the first version of TTC subway cars, another common slogan is The Better Way. The TTC has recovered about 70% of its costs from the fare box in recent years. From its creation in 1921 until 1971, the TTC was self-supporting both for capital and operations, deficits and subsidies soared throughout the 1970s and 1980s, followed by service cuts and a period of ridership decline in the 1990s, partly attributable to recession. Since then, the TTC has consistently been in financial difficulties, Service cuts were averted in 2007, though, when the Toronto City Council voted to introduce new taxes to help pay for city services, including the TTC. As a result, the TTC became the largest transit operator in Anglo-America not to receive provincial/state subsidies, the TTC has received federal funding for capital projects from as early as 2009. The TTC is also considered one of the costliest transit systems per fare price in North America, for the 2011 operating year, the TTC had a projected operating budget of $1.45 billion. Revenue from fares covered approximately 70% of the budget, whereas the remaining 30% originated from the city, in 2009 through 2011, provincial and federal subsidies amounted to 0% of the budget. In contrast to this, STM Montreal receives approximately 10% of its budget from the provincial government. The fairness of preferentially subsidizing transit in specific Canadian cities has been questioned by citizens, the TTC operated the ferry service to the Toronto Islands from 1927 to 1962, when it was transferred to the Metro Parks and Culture department. Gray Coach Lines was a suburban and regional intercity bus operator founded in 1927 by the TTC, Gray Coach used interurban coaches to link Toronto to points throughout southern Ontario
4.
Aluminium
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Aluminium or aluminum is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery-white, soft, nonmagnetic, ductile metal, Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is combined in over 270 different minerals. The chief ore of aluminium is bauxite, Aluminium is remarkable for the metals low density and its ability to resist corrosion through the phenomenon of passivation. Aluminium and its alloys are vital to the industry and important in transportation and structures, such as building facades. The oxides and sulfates are the most useful compounds of aluminium, despite its prevalence in the environment, no known form of life uses aluminium salts metabolically, but aluminium is well tolerated by plants and animals. Because of these salts abundance, the potential for a role for them is of continuing interest. Aluminium is a soft, durable, lightweight, ductile. It is nonmagnetic and does not easily ignite, a fresh film of aluminium serves as a good reflector of visible light and an excellent reflector of medium and far infrared radiation. The yield strength of aluminium is 7–11 MPa, while aluminium alloys have yield strengths ranging from 200 MPa to 600 MPa. Aluminium has about one-third the density and stiffness of steel and it is easily machined, cast, drawn and extruded. Aluminium atoms are arranged in a cubic structure. Aluminium has an energy of approximately 200 mJ/m2. Aluminium is a thermal and electrical conductor, having 59% the conductivity of copper. Aluminium is capable of superconductivity, with a critical temperature of 1.2 kelvin. Aluminium is the most common material for the fabrication of superconducting qubits, the strongest aluminium alloys are less corrosion resistant due to galvanic reactions with alloyed copper. This corrosion resistance is reduced by aqueous salts, particularly in the presence of dissimilar metals. In highly acidic solutions, aluminium reacts with water to form hydrogen, primarily because it is corroded by dissolved chlorides, such as common sodium chloride, household plumbing is never made from aluminium
5.
Three-phase electric power
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Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of system and is the most common method used by electrical grids worldwide to transfer power. It is also used to large motors and other heavy loads. The three-phase system was invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström. The common reference is usually connected to ground and often to a current-carrying conductor called the neutral. Due to the difference, the voltage on any conductor reaches its peak at one third of a cycle after one of the other conductors. This phase delay gives constant power transfer to a linear load. It also makes it possible to produce a magnetic field in an electric motor. In a three-phase system feeding a balanced and linear load, the sum of the currents of the three conductors is zero. In other words, the current in each conductor is equal in magnitude to the sum of the currents in the two, but with the opposite sign. The return path for the current in any phase conductor is the two phase conductors.5 times as many wires. Thus, the ratio of capacity to conductor material is doubled, the same ratio of capacity to conductor material can also be attained with a center-grounded single-phase system. However, two-phase power results in a smooth torque in a generator or motor. Three-phase systems may also have a wire, particularly in low-voltage distribution. The neutral allows three separate single-phase supplies to be provided at a constant voltage and is used for supplying groups of domestic properties which are each single-phase loads. The connections are arranged so that, as far as possible in each group, further up the distribution system, the currents are usually well balanced. Transformers may be wired in a way that they have a secondary but a three-wire primary while allowing unbalanced loads. This makes it possible to reduce the size of the neutral conductor because it carries little or no current, with a balanced load, all the phase conductors carry the same current and so can be the same size
6.
Head-end power
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In rail transport, head-end power or electric train supply is the electrical power distribution system on a passenger train. The power source, usually a locomotive at the front or head of a train, provides the electricity used for lighting, electrical, the maritime equivalent is hotel electric power. Oil lamps were introduced in 1842 to light trains, economics drove the Lancashire and Yorkshire Railway to replace oil with coal gas lighting in 1870, but a gas cylinder explosion on the train led them to abandon the experiment. Oil-gas lighting was introduced in late 1870, high steam consumption led to abandonment of the system. Three trains were started in 1883 by London, Brighton and South Coast Railway with electricity generated on board using a dynamo driven from one of the axles and this charged a lead-acid battery in the guards van, who operated and maintained the equipment. The system successfully provided electric lighting in the train and this accident prompted railways to adopt electricity for lighting the trains. Starting in the 1930s, air conditioning became available on railcars, with the energy to run them being provided by mechanical power take offs from the axle, small dedicated engines or propane. The resulting separate systems of lighting power, steam heat, and engine-driven air conditioning increased the maintenance workload, head-End Power would allow for a single power source to handle all these functions and more for an entire train. Originally, trains hauled by a locomotive would be provided with a supply of steam from the locomotive for heating the carriages. When diesel locomotives and electric locomotives replaced steam, the heating was then supplied by a steam-heat boiler. This was oil-fired or heated by an electric element, later carriage designs abolished the steam-heat apparatus, and made use of the ETH supply for heating, lighting, ventilation, air conditioning, fans, sockets and kitchen equipment in the train. In recognition of this ETH was eventually renamed Electric Train Supply, each coach has an index relating to the maximum consumption of electricity that it could use. The sum of all the indices must not exceed the index of the locomotive, one ETH index unit equals 5 kW, a locomotive with an ETH index of 95 can supply 475 kW of electrical power to the train. In response, the railroad installed higher capacity generators on the assigned to these trains. The cars used steam from the locomotive for heating, when diesel locomotives were introduced to passenger service, they were equipped with steam generators to provide steam for car heating. However, the use of generators and batteries persisted for many years. This was an evolution, as their commuter trains were already receiving low-voltage. While many commuter fleets were quickly converted to HEP, long-distance trains continued to operate with steam heat, five Amtrak E8s were rebuilt with HEP generators for this purpose
7.
Railway electrification system
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A railway electrification system supplies electric power to railway trains and trams without an on-board prime mover or local fuel supply. Electrification has many advantages but requires significant capital expenditure, selection of an electrification system is based on economics of energy supply, maintenance, and capital cost compared to the revenue obtained for freight and passenger traffic. Different systems are used for urban and intercity areas, some electric locomotives can switch to different supply voltages to allow flexibility in operation, Electric railways use electric locomotives to haul passengers or freight in separate cars or electric multiple units, passenger cars with their own motors. Electricity is typically generated in large and relatively efficient generating stations, transmitted to the railway network, some electric railways have their own dedicated generating stations and transmission lines but most purchase power from an electric utility. The railway usually provides its own lines, switches and transformers. Power is supplied to moving trains with a continuous conductor running along the track usually takes one of two forms. The first is a line or catenary wire suspended from poles or towers along the track or from structure or tunnel ceilings. Locomotives or multiple units pick up power from the wire with pantographs on their roofs that press a conductive strip against it with a spring or air pressure. Examples are described later in this article, the second is a third rail mounted at track level and contacted by a sliding pickup shoe. Both overhead wire and third-rail systems usually use the rails as the return conductor. In comparison to the alternative, the diesel engine, electric railways offer substantially better energy efficiency, lower emissions. Electric locomotives are usually quieter, more powerful, and more responsive and they have no local emissions, an important advantage in tunnels and urban areas. Different regions may use different supply voltages and frequencies, complicating through service, the limited clearances available under catenaries may preclude efficient double-stack container service. Possible lethal electric current due to risk of contact with high-voltage contact wires, overhead wires are safer than third rails, but they are often considered unsightly. These are independent of the system used, so that. The permissible range of voltages allowed for the voltages is as stated in standards BS EN50163. These take into account the number of trains drawing current and their distance from the substation, railways must operate at variable speeds. Until the mid 1980s this was only practical with the brush-type DC motor, since such conversion was not well developed in the late 19th century and early 20th century, most early electrified railways used DC and many still do, particularly rapid transit and trams
8.
Volt
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The volt is the derived unit for electric potential, electric potential difference, and electromotive force. One volt is defined as the difference in potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points. It is also equal to the difference between two parallel, infinite planes spaced 1 meter apart that create an electric field of 1 newton per coulomb. Additionally, it is the difference between two points that will impart one joule of energy per coulomb of charge that passes through it. It can also be expressed as amperes times ohms, watts per ampere, or joules per coulomb, for the Josephson constant, KJ = 2e/h, the conventional value KJ-90 is used, K J-90 =0.4835979 GHz μ V. This standard is typically realized using an array of several thousand or tens of thousands of junctions. Empirically, several experiments have shown that the method is independent of device design, material, measurement setup, etc. in the water-flow analogy sometimes used to explain electric circuits by comparing them with water-filled pipes, voltage is likened to difference in water pressure. Current is proportional to the diameter of the pipe or the amount of water flowing at that pressure. A resistor would be a reduced diameter somewhere in the piping, the relationship between voltage and current is defined by Ohms Law. Ohms Law is analogous to the Hagen–Poiseuille equation, as both are linear models relating flux and potential in their respective systems, the voltage produced by each electrochemical cell in a battery is determined by the chemistry of that cell. Cells can be combined in series for multiples of that voltage, mechanical generators can usually be constructed to any voltage in a range of feasibility. High-voltage electric power lines,110 kV and up Lightning, Varies greatly. Volta had determined that the most effective pair of metals to produce electricity was zinc. In 1861, Latimer Clark and Sir Charles Bright coined the name volt for the unit of resistance, by 1873, the British Association for the Advancement of Science had defined the volt, ohm, and farad. In 1881, the International Electrical Congress, now the International Electrotechnical Commission and they made the volt equal to 108 cgs units of voltage, the cgs system at the time being the customary system of units in science. At that time, the volt was defined as the difference across a conductor when a current of one ampere dissipates one watt of power. The international volt was defined in 1893 as 1/1.434 of the emf of a Clark cell and this definition was abandoned in 1908 in favor of a definition based on the international ohm and international ampere until the entire set of reproducible units was abandoned in 1948. Prior to the development of the Josephson junction voltage standard, the volt was maintained in laboratories using specially constructed batteries called standard cells
9.
Current collector
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Those for overhead wires are roof-mounted devices, those for third rails are mounted on the bogies. Typically, they have one or more spring-loaded arms that permit the working engagement with the rail or overhead wire, the collector arm pushes the contact shoe against the contact wire or rail. As the vehicle moves, the shoe slides along the wire or rail to draw the electricity needed to run the vehicles motor. The current collector arms are electrically conductive but mounted insulated on the vehicles roof, an insulated cable connects the collector with the switch, transformer or motor. The steel rails of the act as the electrical return. Electric vehicles that collect their current from an overhead line system use different forms of one- or two-arm pantograph collectors, the current collection device presses against the underside of the lowest wire of an overhead line system, which is called a contact wire. Most overhead supply systems are either DC or single phase AC, three phase AC systems use a pair of overhead wires, and paired trolley poles. Electric railways with third rails, or fourth rails, in tunnels carry collector shoes projecting laterally, or vertically, the contact shoe may slide on top of the third rail, on the bottom or on the side. The side running contact shoe is used against the bars on rubber-tired metros. A vertical contact shoe is used on power supply systems, stud contact systems. A pair of shoes was used on underground current collection systems. The contact shoe on a contact system is called a ski collector. The ski collector moves vertically to accommodate variations in the height of the studs. Contact shoes may also be used on overhead conductor rails, on bars or on trolley wires. Most railways use three rails, while the London Underground uses four rails
10.
Track gauge
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In rail transport, track gauge is the spacing of the rails on a railway track and is measured between the inner faces of the load-bearing rails. All vehicles on a network must have running gear that is compatible with the track gauge, as the dominant parameter determining interoperability, it is still frequently used as a descriptor of a route or network. There is a distinction between the gauge and actual gauge at some locality, due to divergence of track components from the nominal. Railway engineers use a device, like a caliper, to measure the actual gauge, the nominal track gauge is the distance between the inner faces of the rails. In current practice, it is specified at a distance below the rail head as the inner faces of the rail head are not necessarily vertical. In some cases in the earliest days of railways, the company saw itself as an infrastructure provider only. Colloquially the wagons might be referred to as four-foot gauge wagons, say and this nominal value does not equate to the flange spacing, as some freedom is allowed for. An infrastructure manager might specify new or replacement track components at a variation from the nominal gauge for pragmatic reasons. Track is defined in old Imperial units or in universally accepted metric units or SI units, Imperial units were established in United Kingdom by The Weights and Measures Act of 1824. In addition, there are constraints, such as the load-carrying capacity of axles. Narrow gauge railways usually cost less to build because they are lighter in construction, using smaller cars and locomotives, as well as smaller bridges, smaller tunnels. Narrow gauge is often used in mountainous terrain, where the savings in civil engineering work can be substantial. Broader gauge railways are generally expensive to build and require wider curves. There is no single perfect gauge, because different environments and economic considerations come into play, a narrow gauge is superior if ones main considerations are economy and tight curvature. For direct, unimpeded routes with high traffic, a broad gauge may be preferable, the Standard, Russian, and 46 gauges are designed to strike a reasonable balance between these factors. In addition to the general trade-off, another important factor is standardization, once a standard has been chosen, and equipment, infrastructure, and training calibrated to that standard, conversion becomes difficult and expensive. This also makes it easier to adopt an existing standard than to invent a new one and this is true of many technologies, including railroad gauges. The reduced cost, greater efficiency, and greater economic opportunity offered by the use of a common standard explains why a number of gauges predominate worldwide
Line 3 Scarborough
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