|
Automatic Train Protection
Automatic train protection (ATP) is a type of train protection system which continually checks that the speed of a train is compatible with the permitted speed allowed by signalling, including automatic stop at certain signal aspects. If it is not, ATP activates an emergency brake to stop the train. See also * Advanced Civil Speed Enforcement System * Anti Collision Device * Automatic Warning System * Automatische treinbeïnvloeding (ATB) * British Rail's ATP system * Continuous Automatic Warning System (CAWS) * EBICAB * European Train Control System (ETCS) * Kavach * Positive Train Control (PTC) * Punktförmige Zugbeeinflussung (PZB) * Train Protection & Warning System The Train Protection & Warning System (TPWS) is a train protection system used throughout the British passenger main-line railway network, and in Victoria, Australia. The British Rail Safety and Standards Board's definition is: The purpose of TP ... * Train Warning System References {{rail-trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuous Automatic Warning System
The Continuous Automatic Warning System (CAWS) is a form of cab signalling and train protection system used in Ireland to help train drivers observe and obey lineside signals. CAWS has been in use on Iarnród Éireann diesel trains since 1984. All NIR trains operating cross-border must also be fitted with CAWS. Coded track circuits, which form the basis of the system (see below), are installed on all Dublin Suburban and Intercity routes to Cork, Limerick, and Athlone and as far as the border on the Belfast line. This system is of American origin, being originally supplied by US&S, then a division of Westinghouse Air Brake Company (WABCO). Current equipment is supplied by SASIB, a division of Alstom. Principles of operation CAWS repeats the aspects shown by the lineside colour light signals on an aspect display unit (ADU) inside the driver's cab. The ADU continuously displays the aspect that was shown by the previous signal until updated about 350 metres before the next sig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Train Protection & Warning System
The Train Protection & Warning System (TPWS) is a train protection system used throughout the British passenger main-line railway network, and in Victoria, Australia. The British Rail Safety and Standards Board's definition is: The purpose of TPWS is to stop a train by automatically initiating a brake demand, where TPWS track equipment is fitted, if the train has: *passed a signal at danger without authority *approached a signal at danger too fast *approached a reduction in permissible speed too fast *approached buffer stops too fast. TPWS is not designed to prevent SPADs but to mitigate the consequences of a SPAD, by preventing a train that has had a SPAD from reaching a conflict point after the signal. A standard installation consists of an on-track transmitter adjacent to a signal, activated when the signal is at danger. A train that passes the signal will have its emergency brake activated. If the train is travelling at speed, this may be too late to stop it before the point ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Punktförmige Zugbeeinflussung
PZB or Indusi is an intermittent cab signalling system and train protection system used in Germany, Austria, Slovenia, Croatia, Romania, Israel, Serbia, on two lines in Hungary, on the Tyne and Wear Metro in the United Kingdom, and formerly on the Trillium Line in Canada. Developed in Germany, the historic short name Indusi was derived from German ("inductive train protection"). Later generations of the system were named PZB (short for German , literally "punctiform train influencing", translated as "intermittent train protection" or officially "intermittent automatic train running control"), highlighting that the PZB/Indusi system is a family of intermittent train control systems, in comparison with the continuous train control systems including LZB (German , literally "linear train influencing") that were introduced at the time. Originally, Indusi provided warnings and enforced braking only if the warning was not acknowledged (similar to traditional automatic train stop). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Positive Train Control
Positive train control (PTC) is a family of automatic train protection systems deployed in the United States. Most of the United States' national rail network mileage has a form of PTC. These systems are generally designed to check that trains are moving safely and to stop them when they are not. A simplistic form of train traffic governance is ''negative'' train control, where trains must stop when issued a stop order and can move in the absence of such. An example of negative train control is Indusi. In contrast, ''positive'' train control restricts the train movement to an explicit allowance; movement is halted upon invalidation. A train operating under PTC receives a ''movement authority'' containing information about its location and where it is allowed to safely travel. As of 2019, the U.S. freight rail industry trade organization AAR claimed that the nation's largest freight railroads were operating PTC across 83.2 percent of the required route miles. The American Railwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kavach - Indian Railways
Kavach () is an automatic train protection (ATP) system indigenously developed by Indian Railways through Research Designs & Standards Organisation (RDSO). Initial development of Kavach started in 2012 under the name Train Collision Avoidance System (TCAS). The Kavach system is a safety integrity level 4 (SIL-4) certified technology. Once implemented, Kavach will be the world's cheapest automatic train collision protection system, costing 50 lakh rupees per kilometre to operate compared to about two crore rupees worldwide. History The development of India's own automatic protection system or collision avoidance system began in 2012. The project was titled as ''Train Collision Avoidance System'' (TCAS). The Kavach system is developed as part of the Indian Railways goal to achieve zero accident. The first field trials were carried out in 2016 and with this feedback, initial specifications of Kavach was formulated by March 2017. The Kavach was subjected to tests by an independent t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Train Control System
The European Train Control System (ETCS) is the signalling and control component of the European Rail Traffic Management System (ERTMS). It is a replacement for legacy train protection systems and designed to replace the many incompatible safety systems currently used by European railways. The standard was also adopted outside Europe and is an option for worldwide application. In technical terms it is a type of positive train control (PTC). ETCS is implemented with standard trackside equipment and unified controlling equipment within the train cab. In its advanced form, all lineside information is passed to the driver wirelessly inside the cab, removing the need for lineside signals watched by the driver. This will give the foundation for a later to be defined automatic train operation. Trackside equipment aims to exchange information with the vehicle for safely supervising train circulation. The information exchanged between track and trains can be either continuous or int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EBICAB
EBICAB is a trademark registered by Bombardier (later Alstom) for the equipment on board a train used as a part of an Automatic Train Control system. EBICAB was originally derived from Ericsson's SLR system in Sweden. Most trains in Sweden and Norway use a similar on-board system, Ansaldo L10000 (more known as ATC-2) from Bombardier's competitor Ansaldo STS (now Hitachi Rail STS). ATC-2 was also developed in Sweden. These on-board systems use pairs of balises mounted on the sleepers. The pairs of balises distinguish signals in one direction from the other direction with semicontinuous speed supervision, using a wayside to train punctual transmission using wayside transponders. Versions EBICAB comes in two versions, EBICAB 700 in Sweden, Norway, Portugal and Bulgaria and EBICAB 900 installed in the spanish Mediterranean Corridor ( vmax= 220 km/h), and in Finland ( fi, Junakulunvalvonta) under the name ATP-VR/RHK. In Portugal it is known as Convel (the contraction of Control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Train Protection (United Kingdom)
Automatic Train Protection (ATP) was a method of beacon based railway cab signalling developed by British Rail. The system never progressed beyond the pilot schemes installed on the Great Western Main Line between London Paddington and Bristol Temple Meads, and the Chiltern Main Line from London Marylebone to High Wycombe and Aylesbury. History Background A noticeable uptick in signal passed at danger (SPAD) instances in the 1980s led to calls for a new safety system to be adopted that would entirely prevent their occurrence; specifically, the report into the Clapham Junction rail crash (itself not a SPAD accident) specifically stipulated that British Rail (BR) was to fully implement such a system on nationwide basis within five years. From the onset, it was recognised that considerable work would be involved both to develop and deploy the envisioned system. Accordingly, in 1988, BR launched a three-year program to develop and deploy this new system, with the aim of start ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GWR HST ATP Notice 1 (cropped)
GWR may refer to: Transport * Great Western Railway, British railway company 1833–1947 * Great Western Railway (train operating company), British railway company (1996–) * Great Western Main Line, a railway line in the UK * Great Western Railway (other), other railway companies and routes with the name * Gloucestershire Warwickshire Railway, an English heritage railway * Aura Airlines (ICAO airline code: GWR), a Spanish airline * Gwinner–Roger Melroe Field (FAA airport code: GWR), Sargent County, North Dakota, USA Media * GWR Group, a defunct British commercial radio company, merged into GCap Media in 2005 **GWR FM (Bristol & Bath) ** GWR FM Wiltshire * GWR Records, a British record label * ''Graswurzelrevolution'', a German anarcho-pacifist magazine Other uses * Geographically weighted regression * Guinness World Records * Gwere language (ISO 639 language code: gwr) * Llygad Gŵr Llygad Gŵr (fl. 1268 or 1258 – c. 1293,) was a Welsh-language poet in the cour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatische Treinbeïnvloeding
Automatische TreinBeïnvloeding or ATB (English: Automatic Train Control) is a Dutch train protection system first developed in the 1950s. Its installation was spurred by the Harmelen train disaster of 1962. ATB operates by the train collecting electrical signals from line-side apparatus and will override the driver's controls in the following situations: * a) failure to reduce speed at a caution signal (ATB will slow the train sufficiently to stop at the next signal). * b) failure to observe speed limit (ATB makes an immediate emergency brake application) ATB-EG ATB-EG ''(''ATB Eerste Generatie ''English: ATB First Generation'') is based on the American Pulse Code Cab Signaling system. It is installed on all major Dutch rail lines Technical overview ATB-EG controls 5 speeds: 40 km/h, 60 km/h, 80 km/h, 130 km/h and 140 km/h. Just like Pulse Code Cab Signaling the system works by sending pulses along the AC track circuit. When the circuit is closed by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Warning System
The Automatic Warning System (AWS) was introduced in the 1950s in the United Kingdom to provide a train driver with an audible warning and visual reminder that they were approaching a distant signal at caution. Its operation was later extended to give warnings for; * A colour light signal displaying a double yellow (steady or flashing), single yellow or red aspect * A reduction in permissible speed * A temporary or emergency speed restriction * An automatic barrier crossing locally monitored (ABCL), an automatic open crossing locally monitored (AOCL), or an open crossing (OC). AWS was based on a 1930 system developed by Alfred Ernest Hudd and marketed as the "Strowger-Hudd" system. An earlier contact system, installed on the Great Western Railway since 1906 and known as automatic train control (ATC), was gradually supplanted by AWS within the Western Region of British Railways. Principles of operation Information is conveyed by magnetic fields to the moving train throu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
