|
Å koda Varsovia
The Škoda Varsovia is an electric multiple unit train type developed by Škoda Transportation and operated by the Warsaw Metro as their sixth and latest generation of rolling stock. The production of the trains was launched in 2019. The first unit entered regular passenger service in 2022. History In 2019, Škoda Transportation, a company based in Plzeň, Czech Republic, was awarded with a contract worth 1,308 billion Polish złoty for 37 trainsets, each with six cars. The 222 cars—including 74 driver and 148 passenger cars—were to be delivered to the Warsaw Metro, where they would be used on the extended M2 route and also ultimately replace the old Metrovagonmash cars on the M1 line. Many suppliers from Poland participated in the car development and production. The aluminum cabins were welded and varnished in the Škoda Vagonka factory in Ostrava, Czech Republic, and the final assembly and testing took place in Plzeň. The contract also included the preparation of a sim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warsaw Metro
The Warsaw Metro () is a rapid transit underground system serving the Poland, Polish capital Warsaw. It currently consists of two lines, the north–south M1 (Warsaw), M1 line which links central Warsaw with its densely populated northern and southern Dzielnica, districts, and the east–west M2 (Warsaw), M2 line. Three more lines (M3 (Warsaw), M3, M4 (Warsaw), M4, and M5 (Warsaw), M5) are planned. The system is operated by Metro Warszawskie, a company owned by the city, and managed by Public Transport Authority (Warsaw), Public Transport Authority in Warsaw. As of , it is the only metro system in Poland. The first section of M1 was opened in 1995 and the line was gradually extended until it reached its full length in October 2008. The contract for the construction of the initial central section of M2 was signed on 28 October 2009 and construction began on 16 August 2010. The initial segment of M2, measuring with seven stations, one of which, Świętokrzyska (Warsaw Metro), Świ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bródno Metro Station
Bródno is a station on the north-eastern part of Line M2 of the Warsaw Metro The Warsaw Metro () is a rapid transit underground system serving the Poland, Polish capital Warsaw. It currently consists of two lines, the north–south M1 (Warsaw), M1 line which links central Warsaw with its densely populated northern and sou .... It is located in the vicinity of Kondratowicza, Rembielińska and Bazyliańska streets. The station was opened on 28 September 2022. History The construction of the station began in 2019. The station was opened for passenger services on 28 September 2022. References Railway stations in Poland opened in 2022 Line 2 (Warsaw Metro) stations {{Warsaw-metro-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velim Railway Test Circuit
The Velim test centre () is a railway rolling stock testing facility at Cerhenice, close to the town of KolÃn in the Central Bohemian Region of the Czech Republic. Perhaps its most notable feature is the Cerhenice railway test circuit, which consists of two large standard gauge railway track ovals, designed to allow the continuous running of rail vehicles for evaluation and testing. The Velim test centre was constructed during the 1960s and was largely used for domestic purposes early on. During the 1990s, it became increasing popular with international customers, which drove demands to recondition the centre's facilities to fulfill the latest standards of the rail industry. Between 2005 and 2014, an extensive modernisation programme was undertaken at Velim; this involved most aspects of its operations, including power supplies, signalling, overhead electrification, preparation halls, and track. The Velim test centre is presently owned by the ''Railway Research Institute'' (VUZ, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arc Length
Arc length is the distance between two points along a section of a curve. Development of a formulation of arc length suitable for applications to mathematics and the sciences is a problem in vector calculus and in differential geometry. In the most basic formulation of arc length for a vector valued curve (thought of as the trajectory of a particle), the arc length is obtained by integrating speed, the magnitude of the velocity vector over the curve with respect to time. Thus the length of a continuously differentiable curve (x(t),y(t)), for a\le t\le b, in the Euclidean plane is given as the integral L = \int_a^b \sqrt\,dt, (because \sqrt is the magnitude of the velocity vector (x'(t),y'(t)), i.e., the particle's speed). The defining integral of arc length does not always have a closed-form expression, and numerical integration may be used instead to obtain numerical values of arc length. Determining the length of an irregular arc segment by approximating the arc segment as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deceleration
In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Acceleration is one of several components of kinematics, the study of motion. Accelerations are vector quantities (in that they have magnitude and direction). The orientation of an object's acceleration is given by the orientation of the ''net'' force acting on that object. The magnitude of an object's acceleration, as described by Newton's second law, is the combined effect of two causes: * the net balance of all external forces acting onto that object — magnitude is directly proportional to this net resulting force; * that object's mass, depending on the materials out of which it is made — magnitude is inversely proportional to the object's mass. The SI unit for acceleration is metre per second squared (, \mathrm). For example, when a vehicle starts from a standstill (zero velocity, in an inertial frame of reference) and travels in a straight line at increasing spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acceleration
In mechanics, acceleration is the Rate (mathematics), rate of change of the velocity of an object with respect to time. Acceleration is one of several components of kinematics, the study of motion. Accelerations are Euclidean vector, vector quantities (in that they have Magnitude (mathematics), magnitude and Direction (geometry), direction). The orientation of an object's acceleration is given by the orientation of the ''net'' force acting on that object. The magnitude of an object's acceleration, as described by Newton's second law, is the combined effect of two causes: * the net balance of all external forces acting onto that object — magnitude is Direct proportionality, directly proportional to this net resulting force; * that object's mass, depending on the materials out of which it is made — magnitude is Inverse proportionality, inversely proportional to the object's mass. The International System of Units, SI unit for acceleration is metre per second squared (, \ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Third Rail
A third rail, also known as a live rail, electric rail or conductor rail, is a method of providing electric power to a railway locomotive or train, through a semi-continuous rigid conductor placed alongside or between the rails of a track (rail transport), railway track. It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully or almost fully segregated from the outside environment. Third-rail systems are usually supplied with direct current. Modern tram systems with street running avoid the electrical injury risk of the exposed electric rail by implementing a segmented ground-level power supply, where each segment is electrified only while covered by a vehicle which is using its power. The third-rail system of electrification is not related to the third rail used in dual gauge, dual-gauge railways. The system is generally associated with a low voltage (rarely above 750 V) and is far less used for main lines than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Track Gauge
In rail transport, track gauge is the distance between the two rails of a railway track. All vehicles on a rail network must have Wheelset (rail transport), wheelsets that are compatible with the track gauge. Since many different track gauges exist worldwide, gauge differences often present a barrier to wider operation on railway networks. The term derives from the metal bar, or gauge, that is used to ensure the distance between the rails is correct. Railways also deploy two other gauges to ensure compliance with a required standard. A ''loading gauge'' is a two-dimensional profile that encompasses a cross-section of the track, a rail vehicle and a maximum-sized load: all rail vehicles and their loads must be contained in the corresponding envelope. A ''structure gauge'' specifies the outline into which structures (bridges, platforms, lineside equipment etc.) must not encroach. Uses of the term The most common use of the term "track gauge" refers to the transverse distance be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard-gauge Railway
A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), international gauge, UIC gauge, uniform gauge, normal gauge in Europe, and SGR in East Africa. It is the most widely used track gauge around the world, with about 55% of the lines in the world using it. All high-speed rail lines use standard gauge except those in Russia, Finland, Uzbekistan, and some line sections in Spain. The distance between the inside edges of the heads of the rails is defined to be 1,435 mm except in the United States, Canada, and on some heritage British lines, where it is defined in U.S. customary/ British Imperial units as exactly "four feet eight and one half inches", which is equivalent to 1,435.1mm. History As railways developed and expanded, one of the key issues was the track gauge (the distance, or width, between the inner sides of the rail heads) to be used, as the wheels of the rolling stock (locomoti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disability
Disability is the experience of any condition that makes it more difficult for a person to do certain activities or have equitable access within a given society. Disabilities may be Cognitive disability, cognitive, Developmental disability, developmental, Intellectual disability, intellectual, mental disorder#Disability, mental, physical disability, physical, Sense, sensory, or a combination of multiple factors. Disabilities can be Birth defect, present from birth or can be acquired during a person's lifetime. Historically, disabilities have only been recognized based on a narrow set of criteria—however, disabilities are not binary and can be present in unique characteristics depending on the individual. A disability may be readily visible, or Invisible disability, invisible in nature. The United Nations Convention on the Rights of Persons with Disabilities defines disability as including: Disabilities have been perceived differently throughout history, through a variety of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has a great affinity towards oxygen, passivation (chemistry), forming a protective layer of aluminium oxide, oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, magnetism, nonmagnetic, and ductility, ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the abundance of the chemical elements, 12th-most abundant element in the universe. The radioactive decay, radioactivity of aluminium-26, 26Al leads to it being used in radiometric dating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyiv Metro
The Kyiv Metro (, ) is a rapid transit system in Kyiv, Ukraine, owned by the Kyiv City Council and operated by the city-owned company Kyivskyi Metropoliten''.'' It was initially opened on 6 November 1960, as a single line with five stations. It was the first rapid transit system in Ukraine, and the third in the former Soviet Union, after the Moscow Metro and Saint Petersburg Metro, Leningrad Metro. Today, the system consists of three lines and 52 stations, located throughout Kyiv's ten Subdivisions of Kyiv, raion (districts), and operates of routes, with used for revenue service and for non-revenue service. At below ground level, Arsenalna (Kyiv Metro), Arsenalna station on the Sviatoshynsko-Brovarska Line is the second deepest metro station in the world after Hongyancun station in Chongqing, China. In 2016, annual ridership for the metro was 484.56 million passengers, or about 1.32 million passengers daily. The metro accounted for 46.7% of Kyiv's public transport load in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
