Signum
E540419
Signum is a Swiss train protection and signaling system used to enhance the safety and control of railway operations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Signum canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5724740 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Signum Context triple: [Swiss Federal Railways network, safetySystem, Signum]
-
A.
Sikma
Sikma is a surname most notably associated with Jack Sikma, a Hall of Fame American basketball player known for his successful NBA career with the Seattle SuperSonics.
-
B.
Sinegal
Sinegal is a surname most notably associated with James Sinegal, the co-founder and longtime CEO of Costco Wholesale Corporation.
-
C.
Stryama
Stryama is a river in Bulgaria that flows through the central part of the country before joining the Maritsa River.
-
D.
Marval
Marval is an actor known for appearing in the landmark 1929 surrealist film "Un Chien Andalou," directed by Luis Buñuel and co-written with Salvador Dalí.
-
E.
Soral
Soral is a small rural municipality in southwestern Switzerland, located in the canton of Geneva near the French border.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Signum Target entity description: Signum is a Swiss train protection and signaling system used to enhance the safety and control of railway operations.
-
A.
Sikma
Sikma is a surname most notably associated with Jack Sikma, a Hall of Fame American basketball player known for his successful NBA career with the Seattle SuperSonics.
-
B.
Sinegal
Sinegal is a surname most notably associated with James Sinegal, the co-founder and longtime CEO of Costco Wholesale Corporation.
-
C.
Stryama
Stryama is a river in Bulgaria that flows through the central part of the country before joining the Maritsa River.
-
D.
Marval
Marval is an actor known for appearing in the landmark 1929 surrealist film "Un Chien Andalou," directed by Luis Buñuel and co-written with Salvador Dalí.
-
E.
Soral
Soral is a small rural municipality in southwestern Switzerland, located in the canton of Geneva near the French border.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
railway signalling system
ⓘ
train protection system ⓘ |
| abbreviationLanguage | German ⓘ |
| category |
European train protection system
ⓘ
linked to:
European Train Control System
|
| coexistsWith | ZUB ⓘ |
| compatibleWith | Eurobalise-based systems ⓘ |
| controls |
train braking
ⓘ
train speed ⓘ |
| countryOfOrigin | Switzerland ⓘ |
| designedFor | conventional signalling with lineside signals ⓘ |
| developer | Swiss Federal Railways ⓘ |
| geographicScope | Swiss railway network ⓘ |
| informationProvidedToDriver |
signal-related warnings
ⓘ
speed-related warnings ⓘ |
| introducedInDecade | 1930s ⓘ |
| lineSideEquipment |
electromagnets
ⓘ
permanent magnets ⓘ |
| modernizedInDecade | 1980s ⓘ |
| monitors |
driver acknowledgement
ⓘ
signal aspects ⓘ |
| onboardFunction |
automatic emergency brake application
ⓘ
driver vigilance control ⓘ |
| operatedBy |
Swiss Federal Railways
ⓘ
private Swiss railway companies ⓘ |
| operationalMode | intermittent supervision ⓘ |
| phasedOutInFavourOf |
ETCS Level 1
ⓘ
ETCS Level 2 ⓘ |
| purpose |
enhancing railway safety
ⓘ
signal enforcement ⓘ speed supervision ⓘ train protection ⓘ |
| railwayApplication |
mainline railways
ⓘ
narrow-gauge railways ⓘ |
| regulatoryStatus | national train protection system of Switzerland ⓘ |
| replacedBy |
ETCS
ⓘ
linked to:
European Train Control System
|
| safetyFunction |
prevention of signal passed at danger
ⓘ
speed limit enforcement ⓘ |
| safetyImpact |
reduction of collision risk
ⓘ
reduction of overspeed incidents ⓘ |
| safetyStandard | meets Swiss national railway safety requirements ⓘ |
| status | being gradually phased out ⓘ |
| technologyType | intermittent train control system ⓘ |
| transmissionMethod | track-to-train inductive transmission ⓘ |
| usedInCountry | Switzerland ⓘ |
| usedOn |
some metre-gauge lines in Switzerland
ⓘ
standard gauge lines in Switzerland ⓘ |
| usesComponent |
on-board receiver equipment
ⓘ
trackside magnets ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Signum Description of subject: Signum is a Swiss train protection and signaling system used to enhance the safety and control of railway operations.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.