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 train protection system for rapid transit railways. The name means "Driver Assistance, Operation, and Maintenance System".
SACEM cab signalling (far left) on the MI 09, showing a speed limit of 100 km/h (62 mph)A situation authorized by SACEM, an MI 84 trainset enters Auber station while an Altéo trainset has not completely cleared the platform.Lineside signal on RER A taken over by SACEM, as indicated by a St. Andrew's Cross (⨯)
In 2017 the SACEM system in Paris was enhanced with Automatic Train Operation (ATO) and was put in full operation at the end of 2018.[4]
The SACEM system in Paris is to be enhanced to a fully fledged CBTC system named NExTEO. First to be deployed on the newly-extended line RER E in 2024, it is proposed to replace signalling and control on all RER lines.[5]
Operationedit
SACEM cab signalling on the MI 2NAltéo, showing a speed limit of 30 km/h (19 mph)
The SACEM system enables a train to receive signals from devices under the tracks.[6] 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 slow speed, or 30 km/h (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. SACEM also allows for a reduction in potential train bunching and easier recovery from delays, therefore safely increasing operating frequencies as much as possible especially during rush hour.
^"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.
^张郁; 黄佩伟 (2004). "上海轨道交通3号线轨道电路分析" [An analysis of track circuits deployed on Shanghai Metro Line 3] (in Chinese). 城市轨道交通研究. Retrieved 2020-05-12.
^"Alstom-developed Automatic Train Operation system successfully enters service on the RER A". ALSTOM Holdings. 2017-10-05. Retrieved 2017-12-23.
^"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.
External linksedit
Operation principles and examples with pictures in Hongkong
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You can help expand this article with text translated from the corresponding article in French March 2016 Click show for important translation instructions Machine translation like DeepL or Google Translate is a useful starting point for translations but translators must revise errors as necessary and confirm that the translation is accurate rather than simply copy pasting machine translated text into the English Wikipedia Consider adding a topic to this template there are already 5 815 articles in the main category and specifying topic will aid in categorization Do not translate text that appears unreliable or low quality If possible verify the text with references provided in the foreign language article You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at fr Systeme d aide a la conduite a l exploitation et a la maintenance see its history for attribution You should also add the template Translated fr Systeme d aide a la conduite a l exploitation et a la maintenance to the talk page For more guidance see Wikipedia Translation The Systeme d aide a la conduite a l exploitation et a la maintenance SACEM is an embedded automatic speed train protection system for rapid transit railways The name means Driver Assistance Operation and Maintenance System SACEM cab signalling far left on the MI 09 showing a speed limit of 100 km h 62 mph A situation authorized by SACEM an MI 84 trainset enters Auber station while an Alteo trainset has not completely cleared the platform Lineside signal on RER A taken over by SACEM as indicated by a St Andrew s Cross It was developed in France by GEC Alsthom Matra now part of Siemens Mobility and CSEE now part of Hitachi Rail STS in the 1980s It was first deployed on the RER A suburban railway in Paris in 1989 Afterwards it was installed on the Santiago Metro in Santiago Chile on some of the MTR lines in Hong Kong Kwun Tong line Tsuen Wan line Island line Tseung Kwan O line Airport Express and Tung Chung line all enhanced with ATO 1 on Lines A B and 8 of the Mexico City Metro lines in Mexico City 2 and on Shanghai Metro Line 3 3 In 2017 the SACEM system in Paris was enhanced with Automatic Train Operation ATO and was put in full operation at the end of 2018 4 The SACEM system in Paris is to be enhanced to a fully fledged CBTC system named NExTEO First to be deployed on the newly extended line RER E in 2024 it is proposed to replace signalling and control on all RER lines 5 Operation edit nbsp SACEM cab signalling on the MI 2N Alteo showing a speed limit of 30 km h 19 mph The SACEM system enables a train to receive signals from devices under the tracks 6 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 slow speed or 30 km h 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 SACEM also allows for a reduction in potential train bunching and easier recovery from delays therefore safely increasing operating frequencies as much as possible especially during rush hour References edit MTR gt Tenders amp Contracts www mtr com hk Retrieved 2021 12 17 Mexico City Mexico Lines A B and 8 SACEM high performance Automatic Train Control for driver based operation PDF 600 kB Siemens SAS Infrastructure amp Cities Sector Mobility and Logistics Division 2015 03 05 Retrieved 2017 12 23 张郁 黄佩伟 2004 上海轨道交通3号线轨道电路分析 An analysis of track circuits deployed on Shanghai Metro Line 3 in Chinese 城市轨道交通研究 Retrieved 2020 05 12 Alstom developed Automatic Train Operation system successfully enters service on the RER A ALSTOM Holdings 2017 10 05 Retrieved 2017 12 23 RER E soon one train ahead thanks to NExTEO SNCF Reseau 2017 07 20 Retrieved 2017 12 23 Systeme d Aide a la Conduite a l Exploitation et a la Maintenance Institution of Railway Signal Engineers 2003 Retrieved 2017 12 23 External links editOperation principles and examples with pictures in Hongkong nbsp This Reseau Express Regional article is a stub You can help Wikipedia by expanding it vte nbsp This MTR or MTR Corporation related article is a stub You can help Wikipedia by expanding it vte nbsp This South America rail related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title SACEM railway system amp oldid 1181978276, wikipedia, wiki, book, books, library,
