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SelTrac
SelTrac is a digital railway signalling technology used to automatically control the movements of rail vehicles. It was the first fully automatic moving-block signalling system to be commercially implemented. What is now branded as SelTrac was originally developed in the 1970s by Standard Elektrik Lorenz (the "SEL" in the name) of Germany for the Krauss-Maffei Transurban, an automated guideway transit system proposed for the GO-Urban network in the Greater Toronto Area in Canada. Although the GO-Urban project failed, the Transurban efforts were taken over by an Ontario consortium led by the Urban Transportation Development Corporation (UTDC), and adapted to become its Intermediate Capacity Transit System (ICTS). This technology was first used on the SkyTrain network in Vancouver, British Columbia and the Scarborough RT in Toronto, Ontario. SelTrac was primarily sold and developed by Alcatel, through a subsidiary. SelTrac is now sold by Thales from their Canadian unit, after ...
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Bombardier Innovia Metro
Innovia Metro is an automated rapid transit system manufactured by Alstom. Innovia Metro systems run on conventional metal rails and pull power from a third rail, but are powered by a linear induction motor that provides traction by pulling on a "fourth rail" (a flat aluminum slab) placed between the running rails. 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 (UTDC), a Crown corporation owned by the government of Ontario, Canada. It was designed as a system that would provide economic rapid transit service in the suburbs, which would have ridership levels between what a bus could serve at the low-end, or a subway at the high-end. During development, the system was known as the ICTS (Intermediate Capacity Transit System). The ICTS was chosen for lines in Vancouver, Toronto, and Detroit. Further sales were n ...
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Docklands Light Railway
The Docklands Light Railway (DLR) is an automated light metro system serving the redeveloped Docklands area of London, England and provides a direct connection between London's two major financial districts, Canary Wharf and the City of London. First opened on 31 August 1987, the DLR has been extended multiple times, giving a total route length of . Lines now reach north to Stratford, south to Lewisham, west to and in the City of London financial district, and east to Beckton, London City Airport and Woolwich Arsenal. Further extensions are being considered. Normal operations are automated, so there is minimal staffing on the 149 trains (which have no driving cabs) and at major interchange stations; the four below-ground stations are staffed, to comply with underground station health and safety regulations. The DLR is owned by Docklands Light Railway Ltd, part of the London Rail division of Transport for London (TfL). It is operated under a franchise awarded by Tf ...
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Thales Rail Signalling Solutions
Thales Rail Signalling Solutions is a division of Thales Group that supplies transportation-based automation solutions for railways. Its operations are controlled from several locations: *its head office in Paris, France *its railway business divisional centers in Ditzingen and Berlin, Germany; Vienna, Austria; and Hengelo, the Netherlands *its mass transit business divisional centre in Toronto, Ontario, Canada History The original moving block signaling system for rapid transit was introduced by Urban Transportation Development Corporation (an Ontario Crown corporation) for its Intermediate Capacity Transit System (ICTS). In 1985, the ICTS technology was successfully implemented on three new railway lines in North America, all of which continue to use the system today: * SkyTrain (Vancouver, British Columbia) - original installation now part of the Expo Line and later used on new lines and extensions *Scarborough RT (Toronto, Ontario), part of the Toronto subway network *Detro ...
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Scarborough RT
Line 3 Scarborough (originally known as the Scarborough RT or SRT) is a light rapid transit line that is part of the Toronto subway system in Toronto, Ontario, Canada. The line runs entirely within the suburban district of Scarborough, encompassing six stations and of mostly elevated track. It connects with Line 2 Bloor–Danforth at its southwestern terminus, , and terminates in the northeast at . In , the system had a ridership of , or about per weekday as of . Rather than the larger manually operated subway trains used on the other lines in the system, the rolling stock of Line 3 consists of smaller, semi-automated, medium-capacity trains. Designated by the Toronto Transit Commission (TTC) as the S series, these are Intermediate Capacity Transit System (ICTS) Mark I trains built by the Urban Transportation Development Corporation (UTDC). The trains are powered by linear induction motors and operate on tracks, unlike the city's subway lines and the Toronto streetcar sys ...
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Urban Transportation Development Corporation
The Urban Transportation Development Corporation Ltd. (UTDC) was a Crown corporation owned by the Government of Ontario, Canada. It was established in the 1970s as a way to enter what was then expected to be a burgeoning market in advanced light rail mass transit systems. UTDC built a respected team of engineers and project managers. It developed significant expertise in linear propulsion, steerable trucks and driverless system controls which were integrated into a transit system known as the Intermediate Capacity Transit System (ICTS). It was designed to provide service at rider levels between a traditional subway on the upper end and buses and streetcars on the lower, filling a niche aimed at suburbs that were otherwise expensive to service. 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 sys ...
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Krauss-Maffei Transurban
Krauss-Maffei's Transurban was a 12-passenger automated guideway transit (AGT) mass transit system based on a maglev guideway. Development started in 1970 as one of the many AGT and PRT projects that followed in the wake of the HUD reports of 1968. Its selection as the basis of the GO-Urban system in Toronto in 1973 made it well known in the industry; it would have been the basis of the first large-area AGT mass transit network in the world. Technical problems cropped up during the construction of the test track, and the sudden removal of funding by the West German government led to the project's cancellation in late 1974. The Ontario government completed development and installation of a non-maglev version, today known as the Bombardier Advanced Rapid Transit. History AGT development The publication of the HUD reports in the US in 1968 led to a wave of developments in the mass transit world. Dozens of companies around the world started development of AGT systems from large to ...
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Linienzugbeeinflussung
Linienzugbeeinflussung (or LZB) is a cab signalling and train protection system used on selected German and Austrian railway lines as well as on the AVE and some commuter rail lines in Spain. The system was mandatory where trains were allowed to exceed speeds of in Germany and in Spain. It is also used on some slower railway and urban rapid transit lines to increase capacity. The German Linienzugbeeinflussung translates to ''continuous train control'', literally: ''linear train influencing''. It is also called ''linienförmige Zugbeeinflussung''. LZB is deprecated and will be replaced with European Train Control System (ETCS) between 2023 and 2030. It is referenced by European Union Agency for Railways (ERA) as a Class B ''train protection system'' in ''National Train Control'' (NTC). Driving cars mostly have to replace classical control logic to ETCS ''Onboard Units'' (OBU) with common '' Driver Machine Interface'' (DMI). Because high performance trains are often not scrap ...
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SkyTrain (Vancouver)
SkyTrain is the medium-capacity rapid transit system in the Metro Vancouver Regional District, serving Vancouver, British Columbia, Canada. SkyTrain has of track and uses fully automated trains on grade-separated tracks running on underground and elevated guideways, allowing SkyTrain to hold consistently high on-time reliability. The name "SkyTrain" was coined for the system during Expo 86 because the first line (Expo) principally runs on elevated guideway outside of Downtown Vancouver, providing panoramic views of the metropolitan area. SkyTrain uses the world's second-longest cable-supported transit-only bridge, known as SkyBridge, to cross the Fraser River. With the opening of the Evergreen Extension on December 2, 2016, SkyTrain became the longest rapid transit system in Canada and the longest fully automated driverless system in the world. The total lengths of the automated lines of the Shanghai Metro, Singapore MRT, Kuala Lumpur Rapid KL and Dubai Metro have since ...
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IEEE 802
IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LAN), personal area network (PAN), and metropolitan area networks (MAN). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards. The IEEE 802 family of standards has had twenty-four members, numbered 802.1 through 802.24, with a working group of the LMSC devoted to each. However, not all of these working groups are currently active. The IEEE 802 standards are restricted to computer networks carrying variable-size packets, unlike cell relay networks, for example, in which data is transmitted in short, uniformly sized units called cells. Isochronous signal networks, in which data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also outside the scope of the IEEE 802 standards. The number 802 has no significance: it was simply the next number in the sequence that the IEEE used for standards project ...
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Siemens
Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', ''Energy'', ''Healthcare'' ( Siemens Healthineers), and ''Infrastructure & Cities'', which represent the main activities of the corporation. The corporation is a prominent maker of medical diagnostics equipment and its medical health-care division, which generates about 12 percent of the corporation's total sales, is its second-most profitable unit, after the industrial automation division. In this area, it is regarded as a pioneer and the company with the highest revenue in the world. The corporation is a component of the Euro Stoxx 50 stock market index. Siemens and its subsidiaries employ approximately 303,000 people worldwide and reported global revenue of around €62 billion in 2021 according to its earnings release. History 1847 to ...
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Railway Signalling
Railway signalling (), also called railroad signaling (), is a system used to control the movement of railway traffic. Trains move on fixed rails, making them uniquely susceptible to collision. This susceptibility is exacerbated by the enormous weight and inertia of a train, which makes it difficult to quickly stop when encountering an obstacle. In the UK, the Regulation of Railways Act 1889 introduced a series of requirements on matters such as the implementation of interlocked block signalling and other safety measures as a direct result of the Armagh rail disaster in that year. Most forms of train control involve movement authority being passed from those responsible for each section of a rail network (e.g. a signalman or stationmaster) to the train crew. The set of rules and the physical equipment used to accomplish this determine what is known as the ''method of working'' (UK), ''method of operation'' (US) or ''safeworking'' (Aus.). Not all these methods require the u ...
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Radio Frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies; these are the frequencies at which energy from an oscillating current can radiate off a conductor into space as radio waves. Different sources specify different upper and lower bounds for the frequency range. Electric current Electric currents that oscillate at radio frequencies (RF currents) have special properties not shared by direct current or lower audio frequency alternating current, such as the 50 or 60 Hz current used in electrical power distribution. * Energy from RF currents in conductors can radiate into space as electromagnetic waves ( radio waves). This is the basis of radio technology. * RF current does not penetrate deeply into ele ...
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