Key:railway:sop
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 railway:sop
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| Description |
|---|
Specifies the existence and installed variant of the SOP automatic train protection system. 
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| Group: railways |
| Used on these elements |
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| Useful combination |
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| Status: in use |
| Tools for this tag |
The key railway:sop=* specifies the variant of the SOP (Polish: System Ograniczenia Prędkości, “speed limitation system”) automatic train protection system installed on a railway track.
SOP continuously transmits permitted-speed information from trackside equipment to the train. The onboard equipment supervises the train speed and initiates braking if the permitted speed is exceeded.
Values
| Tag | Description | Known use |
|---|---|---|
railway:sop=2W
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SOP-2W, a modernised variant of SOP-2. | Warsaw Metro line M1 |
railway:sop=3
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SOP-3, a later SOP variant with more detailed speed supervision and support for automatic train operation. | Warsaw Metro line M2 |
railway:sop=2P
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SOP-2P, the Prague adaptation of the SOP system and the ATP component of the LZA system. | Prague Metro lines A and B |
Examples
A track equipped with SOP-2P:
railway=subway railway:sop=2P
See also
- OpenRailwayMap/Tagging#Train protection systems
railway:ato=*– automatic train operationrailway:atc=*– generic automatic train control tagging