SACEM (railway system): Difference between revisions
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The '''Système d'aide à la conduite, à l'exploitation et à la maintenance''' ('''SACEM''') is an [[Embedded system|embedded]], automatic speed control system for [[rapid transit]] railways. The name means "Driver Assistance, Operation, and Maintenance System". |
The '''Système d'aide à la conduite, à l'exploitation et à la maintenance''' ('''SACEM''') is an [[Embedded system|embedded]], automatic speed control system for [[rapid transit]] railways. The name means "Driver Assistance, Operation, and Maintenance System". |
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It was developed in [[France]] by [[Alstom]] and [[Siemens]]. It was first deployed |
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* on the [[RER A]] suburban railway in [[Paris]] in 1989. |
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Afterwards it was installed |
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* in [[Santiago Metro|Metro]] lines in [[Santiago]] de [[Chile]], |
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* on some of the [[MTR]] lines in [[Hong Kong]] (such as the [[Airport Express (MTR)|Airport Express]] and [[Tung Chung Line]])<ref>{{Cite web|url=https://www.checkerboardhill.com/2011/04/railway-signalling-on-the-mtr-underground/|title=Railway signalling on the MTR underground|last=Wong|first=Marcus|date=2011-04-12|website=Checkerboard Hill, Private blog|access-date=2017-12-23}}</ref> and |
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* in [[Mexico City]].<ref>{{Cite web|url=https://w5.siemens.com/france/web/fr/sts/nos_realisations_export/Documents/Fiche_Mexico_2012_en.pdf|title=Mexico City (Mexico) Lines A, B and 8 - SACEM high performance Automatic Train Control for driver-based operation|date=2015-03-05|website=Siemens SAS; Infrastructure & Cities Sector; Mobility and Logistics Division|format=PDF; 600 kB|access-date=2017-12-23}}</ref> |
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| ⚫ | In 2017 it was enhanced in Paris with [[Automatic train operation|Automatic Train Operation]] (ATO) and will be put in full operation until end of 2018.<ref>{{Cite web|url=http://www.alstom.com/press-centre/2017/05/alstom-developed-automatic-train-operation-system-successfully-enters-service-on-the-rer-a/|title=Alstom-developed Automatic Train Operation system successfully enters service on the RER A|last=|first=|date=2017-10-05|website=ALSTOM Holdings|archive-url=|archive-date=|dead-url=|access-date=2017-12-23}}</ref> |
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The SACEM system in Paris is to be enhanced to a fully fledged [[Communications-based train control|CBTC]] system named NExTEO. First to be deployed on the new prolongated line [[RER E]] in 2024, it is proposed to replace signalling and control on all RER lines.<ref>{{Cite web|url=https://www.sncf-reseau.fr/en/reportages/nexteo|title=RER E – soon one train ahead thanks to NExTEO …|date=2017-07-20|website=SNCF Réseau|access-date=2017-12-23}}</ref> |
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The SACEM system on the RER A is expected to be replaced with [[Communications-based train control|CBTC]] by the early-2020s. |
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==Operation== |
==Operation== |
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Revision as of 21:45, 23 December 2017
 | You can help expand this article with text translated from the corresponding article in French. (March 2016) Click [show] for important translation instructions.
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The Système d'aide à la conduite, à l'exploitation et à la maintenance (SACEM) is an embedded, automatic speed control system for rapid transit railways. The name means "Driver Assistance, Operation, and Maintenance System".
It was developed in France by Alstom and Siemens. It was first deployed
Afterwards it was installed
- in Metro lines in Santiago de Chile,
- on some of the MTR lines in Hong Kong (such as the Airport Express and Tung Chung Line)[1] and
- in Mexico City.[2]
In 2017 it was enhanced in Paris with Automatic Train Operation (ATO) and will be put in full operation until end of 2018.[3]
The SACEM system in Paris is to be enhanced to a fully fledged CBTC system named NExTEO. First to be deployed on the new prolongated line RER E in 2024, it is proposed to replace signalling and control on all RER lines.[4]
Operation
The SACEM system enable a train to receive signals from devices under the tracks.[5] A receiver in the train cabin interprets the signal, and sends data to the console so the driver can see it. A light on the console indicates the speed control setting: an orange light means "Jog Mode", or 30 kilometres per hour (19 mph); a red light means full stop. If the driver alters the speed, a warning buzzer may sound. If the system determines that the speed might be unsafe, and the driver does not change it within a few seconds, SACEM engages the emergency brake.
 | This Réseau Express Régional article is a stub. You can help Wikipedia by expanding it. |
 | This MTR- or MTR Corporation-related article is a stub. You can help Wikipedia by expanding it. |
| This South America rail-related article is a stub. You can help Wikipedia by expanding it. |
External links
Operation principles and examples with pictures in Hongkong
References
- ^ Wong, Marcus (2011-04-12). "Railway signalling on the MTR underground". Checkerboard Hill, Private blog. Retrieved 2017-12-23.
- ^ "Mexico City (Mexico) Lines A, B and 8 - SACEM high performance Automatic Train Control for driver-based operation" (PDF; 600 kB). Siemens SAS; Infrastructure & Cities Sector; Mobility and Logistics Division. 2015-03-05. Retrieved 2017-12-23.
- ^ "Alstom-developed Automatic Train Operation system successfully enters service on the RER A". ALSTOM Holdings. 2017-10-05. Retrieved 2017-12-23.
{{cite web}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "RER E – soon one train ahead thanks to NExTEO …". SNCF Réseau. 2017-07-20. Retrieved 2017-12-23.
- ^ "Système d'Aide à la Conduite, à l'Exploitation et à la Maintenance". Institution of Railway Signal Engineers. 2003. Retrieved 2017-12-23.