|
Ground-level Power Supply
Ground-level power supply, also known as surface current collection or, in French, ''alimentation par le sol'' ("feeding via the ground"), is a concept and group of technologies whereby electric vehicles collect electric power at ground level from individually-powered segments instead of the more common overhead lines. Ground-level power supply has been used primarily for aesthetic reasons. During the late 2010s it has become more economical than overhead lines. Ground-level power supply systems date back to the beginning of electric tramways, with some of the earliest such systems using conduit current collection. Since the turn of the 21st century, new systems such as the Alstom APS, Ansaldo Tramwave, CAF ACR, Elways, and others have been introduced which use modern technology to address some of the limitations and dangers of the older systems, and supply power for buses, trucks, and electric cars. With the increased efficiency and energy density of capacitor and battery powe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens Mobility
Siemens Mobility GmbH is a separately-managed company of Siemens, arising from a corporate restructuring effective 1 August 2018. With its global headquarters in Munich, Siemens Mobility has four core business units: Mobility Management, dedicated to rail technology and intelligent traffic systems, Railway Electrification, Rolling Stock, and Customer Services. History Innovations from the late 19th century, such as the world's first electric train, when Siemens & Halske unveiled a train in which power was supplied through the rails, and the world's first electric tram, with the implementation of 2.5-kilometer-long electric tramway located in Berlin, built at the company's own expense, cemented the use of electric power in transportation systems. In the following years, inventions such as the first electric trolleybus, mine locomotives, and the first underground railway in continental Europe (in Budapest), set the path from trams and subways to today's high-speed trains. Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swedish Transport Administration
The Swedish Transport Administration ( sv, Trafikverket) is a government agency in Sweden, government agency in Sweden, controlled by the Riksdag and the Government of Sweden. It is responsible for long-term infrastructure planning for transport: road, rail, shipping and aviation. It owns, constructs, operates and maintains all state-owned roads and railways and operates many ferry services. The agency is a member of the Nordic Road Association. History A special committee oversaw the effectiveness of the Swedish transport agencies during 2008 and 2009. A conclusion was reached that there would be significant gains compared with the then-present situation if a new agency responsible for long-term planning of the transport system for road, rail, maritime and air traffic was formed. Preparations started in the autumn of 2009, and the new authority began its work on 1 April 2010. It took over all operations of the Swedish Road Administration and the Swedish Rail Administration, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inductive Charging
Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in vehicles, power tools, electric toothbrushes, and medical devices. The portable equipment can be placed near a charging station or inductive pad without needing to be precisely aligned or make electrical contact with a dock or plug. Inductive charging is named so because it transfers energy through inductive coupling. First, alternating current passes through an induction coil in the charging station or pad. The moving electric charge creates a magnetic field, which fluctuates in strength because the electric current's amplitude is fluctuating. This changing magnetic field creates an alternating electric current in the portable device's induction coil, which in turn passes through a rectifier to convert it to direct current. Finally, the direct current ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transport Research Laboratory
TRL Limited, trading as TRL (formerly Transport Research Laboratory) is an independent private company offering a transport consultancy and research service to the public and private sector. Originally established in 1933 by the UK Government as the Road Research Laboratory (RRL), it was privatised in 1996. Its motto or tagline is 'The Future of Transport'. History TRL was originally established in 1933 by the UK Government as the Road Research Laboratory (RRL) under the Department of Scientific and Industrial Research (DSIR), and later became the Transport and Road Research Laboratory (TRRL) in 1972. During the Second World War, the Laboratory contributed to the war effort. Among its contributions, under William Glanville, were research that aided the development of plastic armour, the bouncing bomb and the Disney bomb. During governmental reorganisation in the 1970s, the TRRL moved from the Department of Trade and Industry (DTI) to the Department of the Environment (DoE). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Road
An electric road, eroad, or electric road system (ERS) is a road which supplies electric power to vehicles travelling on it. Common implementations are overhead power lines above the road and ground-level power supply through conductive rails or inductive coils embedded in the road. Overhead power lines are limited to commercial vehicles while ground-level power can be used by any vehicle, which allows for public charging through power metering and billing systems. Of the three systems, ground-level conductive rails are estimated to be the most cost-effective. Korea was the first to implement a public electric road with a commercial bus line in 2013 after testing an experimental shuttle service in 2009. Sweden has been performing assessments of various electric road technologies since 2013 and expects to start formulating a national electric road system in 2022 and finish planning by 2033. Technology TRL (formerly Transport Research Laboratory) lists three power delivery types for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elways Electric Truck Dynamic Charging Electric Road ERoadArlanda Project 2019-05-16
An electric road, eroad, or electric road system (ERS) is a road which supplies electric power to vehicles travelling on it. Common implementations are overhead power lines above the road and ground-level power supply through conductive rails or inductive coils embedded in the road. Overhead power lines are limited to commercial vehicles while ground-level power can be used by any vehicle, which allows for public charging through power metering and billing systems. Of the three systems, ground-level conductive rails are estimated to be the most cost-effective. Korea was the first to implement a public electric road with a commercial bus line in 2013 after testing an experimental shuttle service in 2009. Sweden has been performing assessments of various electric road technologies since 2013 and expects to start formulating a national electric road system in 2022 and finish planning by 2033. Technology TRL (formerly Transport Research Laboratory) lists three power delivery types for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ansaldo Stream
Ansaldo Energia S.p.A. is an Italian power engineering company. It is based in Genoa, Italy. The absorbed parent company, Gio. Ansaldo & C., started in 1853. It was taken over by Leonardo S.p.A. In 2011, Leonardo S.p.A. sold 45% stake in Ansaldo Energia to First Reserve Corporation. In 2013, the Fondo Strategico Italiano acquired an 85% share of the company. It then sold a 40% share to Shanghai Electric Corporation.. Products and services Ansaldo Energia is a producer of thermoelectric power plants, operating in international markets for customers ranging from Public Administration to Independent Power Producers and Industrial Clients. Ansaldo Energia covers the entire power generation spectrum with a combination of plant engineering, manufacturing and service activities. It has an installed capacity exceeding 166,000 MW in over 90 countries for thermal electric and hydroelectric plants. Revenues in 2007 stood at 979 million euros. The production centre is located in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minnesota Department Of Transportation
The Minnesota Department of Transportation (MnDOT, ) oversees transportation by all modes including land, water, air, rail, walking and bicycling in the U.S. state of Minnesota. The cabinet-level agency is responsible for maintaining the state's trunk highway system (including state highways, U.S. Highways, and Interstate Highways), funding municipal airports and maintaining radio navigation aids, and other activities. History The agency's history can be traced to the state's Railroad and Warehouse Commission which emerged slowly from 1871 to 1905, and the State Highway Commission created in 1905. The Highway Commission was abolished in 1917 and replaced by a Department of Highways. The Minnesota Highway Department has been credited with numerous works listed on the U.S. National Register of Historic Places. For air transport, the Minnesota Aeronautics Commission was created in 1933. Much of the railroad oversight was transferred to the Minnesota Department of Public Service ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transportation Research Board
The Transportation Research Board (TRB) is a division of the National Academy of Sciences, Engineering, and Medicine, formerly the National Research Council of the United States, which serves as an independent adviser to the President of the United States, the Congress and federal agencies on scientific and technical questions of national importance. It is jointly administered by the National Academy of Sciences, the National Academy of Engineering, and the National Academy of Medicine. As one of seven major divisions of the National Academies of Sciences, Engineering, and Medicine, TRB promotes innovation and progress in transportation through research in an objective and interdisciplinary setting. It provides trusted, timely, impartial, and evidence-based information exchange, research, and advice regarding all modes of transportation. TRB hosts some 200 standing technical committees that address specific aspects of transport and the TRB Annual Meeting attracts thousands of trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edinburgh Tram Network
Edinburgh Trams is a tramway in Edinburgh, Scotland, operated by Edinburgh Trams Ltd. It is a line between St Andrew Square in the New Town and Edinburgh Airport, with 15 stops. Construction began in June 2008, and after encountering delays it opened on 31 May 2014. The scheme had an initial estimated cost of £375 million in 2003, but by May 2008, when contracts were signed, the cost had risen to £521 million. The final cost after delays was £776 million. After running for two years, the scheme had achieved pre-tax profitability (excluding maintenance and infrastructure costs) and exceeded the original ridership targets. It has run at an operating loss since 2018 (e.g. − £9.4 million in 2018). On 14 March 2019, Edinburgh Council voted to approve the extension of the existing line from York Place to Newhaven. The extended line is due to be operational by early 2023. History Background Edinburgh and Leith were originally served by horse-drawn coaches, and then ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
King Charles Bridge
Charles Bridge ( cs, Karlův most ) is a medieval stone arch bridge that crosses the Vltava river in Prague, Czech Republic. Its construction started in 1357 under the auspices of King Charles IV, Holy Roman Emperor, Charles IV, and finished in the early 15th century.; The bridge replaced the old Judith Bridge built 1158–1172 that had been badly damaged by a flood in 1342. This new bridge was originally called Stone Bridge (''Kamenný most'') or Prague Bridge (''Pražský most''), but has been referred to as "Charles Bridge" since 1870. As the only means of crossing the river Vltava until 1841, Charles Bridge was the most important connection between Prague Castle and the city's Old Town, Prague, Old Town and adjacent areas. This land connection made Prague important as a trade route between Eastern and Western Europe. The bridge is long and nearly wide. Following the example of the Stone Bridge (Regensburg), Stone Bridge in Regensburg, it was built as a bow bridge with 16 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
