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Siemens SD-100 And SD-160
The Siemens SD-100 and SD-160 are two related types of high-floor light rail vehicles (LRV), manufactured by Siemens Mobility for the North American market. A total of 431 vehicles were built by Siemens in Florin, California from 1992 to 2013. The SD-100 began production in 1992, and is equipped with direct current traction motors and folding doors. It was succeeded in 2001 by the revised SD-160, which is equipped with alternating current motors and plug doors. The first orders for the SD-160 were placed in 2001, and production continued until 2013. A related design is the SD-400/SD-460 high-floor light rail vehicle, which was initially built by a Siemens– Duewag joint venture. Siemens purchased Duewag in 1999, and assembled the SD-460 model alongside the SD-100/SD-160 in Florin, California. The SD-100, SD-160, SD-400, and SD-460 were succeeded in the 2010s by newer LRV designs from Siemens, including the low-floor S700 and S70 and the high-floor S200. , most SD-100 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Transportation District
The Regional Transportation District, more commonly referred to as RTD, is the regional agency operating public transit services in all or a portion of eight out of the twelve counties in the Denver–Aurora combined statistical area in the U.S. state of Colorado. It operates over a area, serving 3.08 million people. RTD was organized in 1969 and is governed by a 15-member, publicly elected Board of Directors. Directors are elected to a four-year term and represent a specific district of about 180,000 constituents. RTD currently operates a bus and rail system consisting of 10 rail lines and 126 bus routes throughout the Denver region. RTD's bus network consists of 86 local, 23 regional, 14 limited, and 3 SkyRide bus routes plus some special services. The rail system consists of 6 light rail lines and an additional 4 commuter rail lines with 77 stations and of track. In , the system had a ridership of , or about per weekday as of , making RTD the largest transit agency in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scharfenberg Coupler
The Scharfenberg coupler (, abbreviated ''Schaku'') is a commonly used type of fully automatic railway coupling. Designed in 1903 by Karl Scharfenberg in Königsberg, Germany (today Kaliningrad, Russia), the coupler has gradually spread from transit trains to regular passenger service trains, although outside Europe its use is generally restricted to mass transit systems. The ''Schaku'' is superior in many ways to the Janney coupler, AAR (Janney/knuckle) coupler because it also automates electrical and pneumatic connections and disconnections. However, there is no standard for the placement of these electro-pneumatic connections. Some rail operators have placed them on the sides while others have placed them either below or above the mechanical portion of the coupler. Scharfenberg as a technical design principle and brand name Scharfenberg and the abbreviation Schaku are registered trademarks of Voith Patent GmbH. For this reason, only couplings from Voith can use this name. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens–Duewag U2
The Siemens–Duewag U2 is a type of light rail vehicle (LRV), built by consortium of Siemens, Duewag and Wegmann & Co built between 1968 and 1990. The design was based on the prototype U1 tram built in 1965 for the Frankfurt U-Bahn. The U2 was also designed for and used by the Frankfurt U-Bahn. The name is derived from the class identifier given to the cars in the Frankfurt. The U2 was later exported to North America and adapted for use on light rail systems in Edmonton, Calgary, and San Diego, during a period in which few purpose-built LRVs were being manufactured. History U1 prototype In the early 1960s, Duewag developed and manufactured a prototype of a new tram for the Frankfurt U-Bahn. The design was largely based on the previously delivered trams, but added electronic controls that allowed several railcars to be coupled together to form trains, and a floor height of that made it possible to board from platforms with a height of without having to add a folding step previ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denver, Colorado
Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of Colorado. It is located in the Western United States, in the South Platte River, South Platte River Valley on the western edge of the High Plains (United States), High Plains east of the Front Range of the Rocky Mountains. With a population of 715,522 as of the 2020 United States census, 2020 census, a 19.22% increase since 2010 United States census, 2010, Denver is the List of United States cities by population, 19th most populous city in the United States and the fifth most populous state capital. Denver is the principal city of the Denver metropolitan area, Denver Metropolitan area (which includes over 3 million people), as well as the economic and cultural center of the broader Front Range Urban Corridor, Front Range, home to more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sac RT Siemens
SAC or Sac may refer to: Organizations Education * Santa Ana College, California, US * San Antonio College, Texas, US * St. Andrew's College, Aurora, Canada * Students' Administrative Council, University of Toronto, Canada * SISD Student Activities Complex, in El Paso, Texas, US * School-assessed coursework for Victorian Certificate of Education * Student Activity Complex, in Laredo, Texas, US Government and military * NATO Strategic Airlift Capability, multinational transport aircraft initiative * Senior Aircraftman, a Royal Air Force rank * Senior Assistant Commissioner, a rank in the police of Singapore and Malaysia * Southern Air Command (India), of the Indian Air Force * Special Agent in Charge of a criminal investigation * State Administration Council, governing Myanmar after the 2021 coup d'état * Special advisory committee, of the Canadian government China * Second Artillery Corps, later the People's Liberation Army Rocket Force, China * Shenyang Aircraft Corp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-floor Tram
A low-floor tram is a tram that has no steps between one or more entrances and part or all of the passenger cabin. The low-floor design improves the accessibility of the tram for the public, and also may provide larger windows and more airspace. A low-floor tram allows accessible level access from curb (road), curb level platforms. Level access can also be achieved either by using a high-floor vehicle serving high-platform stops. Currently both types are in use, depending on the station platform infrastructure in existing rail systems. Some systems may make use of former railway alignments where use of existing high platforms is desirable, while others, particularly new systems, may not have the space to site high-level platforms in urban centres. Low-floor tram configurations Trams traditionally had high floors, and articulated tram designs evolved with low-floor centre sections. Examples of this design are Trams in Amsterdam, Amsterdam 11G/12G-trams and the Kusttrams in Belgium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duewag
Düwag or Duewag (stylised in all caps), formerly Waggonfabrik Uerdingen, was a German manufacturer of rail vehicles. It was sold in 1999 to Siemens with the brand later retired. History Duewag was founded in March 1898 as Waggonfabrik Uerdingen in Uerdingen and produced rail vehicles under the Düwag brand. After merging with Düsseldorfer Waggonfabrik in 1935, railway vehicles were built in Uerdingen, while the Düsseldorf plant produced mainly local traffic vehicles, namely tramway and light rail vehicles. In 1981, the company changed its name from Waggonfabrik Uerdingen to Duewag. Siemens acquired a 60% shareholding in 1989 before taking full ownership in April 1999. In 2001, the Düsseldorf plant was closed with production transferred to Uerdingen. Duewag vehicles were close to a monopoly market in West Germany, as nearly every tram and light rail vehicle purchased from the 1960s onward was built by Duewag. Products Train * Uerdingen railbus * Düwag Wadloper * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens SD-400 And SD-460
The Siemens SD-400 and SD-460 are light rail vehicles (LRV) that were manufactured by Siemens Mobility between 1985 and 2005 for the North and South American markets. The SD-400 was built under Siemens' joint venture with Duewag and assembled at both Duewag's factory in Düsseldorf, West Germany (Germany after reunification in 1990) and the Siemens factory in Florin, California. Siemens purchased Duewag in 1999 and the SD-460 was assembled entirely at the Siemens factory in California. The primary difference between the models is that the older SD-400 uses direct current motors, while the newer SD-460 uses alternating current motors. Both models were built with a "high-floor" design and equipped with 3-4 doors on each side for level boarding at high-platform stations and one door with steps for boarding at street-level. The SD-400 and SD-460 were manufactured and marketed alongside the older Siemens–Duewag U2 LRV and later the Siemens SD-100 and SD-160 vehicles. The U2, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plug Door
A plug door is a door designed to seal itself by taking advantage of pressure difference on its two sides and is typically used on aircraft with cabin pressurization. The higher pressure on one side forces the usually wedge-shaped door into its socket to create a seal, which prevents it from being opened until the pressure is equalised on both sides. A non-plug door relies on the strength of the locking mechanism to keep the door shut. Aircraft Plug doors are often used on aircraft with pressurized cabins because this design of door provides a simple and reliable means of securing the door and preventing leakage of air. As the air pressure outside becomes increasingly lower than that inside the cabin, the pressure difference causes the door to seal itself closed and prevent leakage. The region of the fuselage around the opening for the door must be reinforced and this adds weight, so for large doors an alternative to the plug design is commonly used. On some aircraft, a com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AC Motor
An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings. Less common, AC linear motors operate on similar principles as rotating motors but have their stationary and moving parts arranged in a straight line configuration, producing linear motion instead of rotation. Operating principles The two main types of AC motors are induction motors and synchronous motors. The induction motor (or asynchronous motor) always relies on a small difference in speed between the stator rotating magnetic field and the rotor shaft speed called slip to induce rotor current in the rotor AC winding. As a result, the induction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction Motor
A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, or electric multiple unit trains. Traction (engineering), Traction motors are used in electrically powered railway vehicles (electric multiple units) and other electric vehicles including electric milk floats, trolleybuses, elevators, roller coasters, and conveyor systems, as well as vehicles with electrical transmission systems (Diesel locomotive#Transmission types, diesel–electric locomotives, electric hybrid vehicles), and battery electric vehicles. Traction motor companies The word ''traction'' from Latin, being the Agent (grammar), agent noun of ''trahere'' "to pull" in the sense of "drawn" was used for the naming of traction engines developed circa 1870. The first experimental electric traction motor tramway of 1875 was rapidly developed internationally for city use. In the 19th century traction motor passenger car companies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
