Tokyu ATS
E535967
Tokyu ATS is an automatic train stop safety system used on Tokyu Corporation and compatible railway lines to prevent trains from passing signals at danger and to enhance operational safety.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tokyu ATS canonical | 2 |
| Tokyu Automatic Train Stop | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5548549 — 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: Tokyu ATS Context triple: [Tobu 50050 series, safetySystem, Tokyu ATS]
-
A.
Tokyu 5050 series
The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
-
B.
Kintetsu ATS
Kintetsu ATS is an automatic train protection system used by Kintetsu Railway in Japan to enhance operational safety by enforcing speed limits and signal compliance.
-
C.
Tokyu 5000 series
The Tokyu 5000 series is a Japanese electric multiple unit train type operated by Tokyu Corporation, primarily used for commuter services in the Tokyo metropolitan area.
-
D.
Tokyo Metro CS-ATC
Tokyo Metro CS-ATC is a cab signaling-based automatic train control system used on Tokyo Metro and interconnected lines to ensure safe train operation through continuous speed supervision and automatic braking.
-
E.
Tobu ATS
Tobu ATS is an automatic train stop safety system used on Tobu Railway lines in Japan to prevent collisions and signal overruns.
- 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: Tokyu ATS Target entity description: Tokyu ATS is an automatic train stop safety system used on Tokyu Corporation and compatible railway lines to prevent trains from passing signals at danger and to enhance operational safety.
-
A.
Tokyu 5050 series
The Tokyu 5050 series is a Japanese electric multiple unit commuter train type operated by Tokyu Corporation and used on through-services with Tokyo Metro and other railway lines in the Tokyo area.
-
B.
Kintetsu ATS
Kintetsu ATS is an automatic train protection system used by Kintetsu Railway in Japan to enhance operational safety by enforcing speed limits and signal compliance.
-
C.
Tokyu 5000 series
The Tokyu 5000 series is a Japanese electric multiple unit train type operated by Tokyu Corporation, primarily used for commuter services in the Tokyo metropolitan area.
-
D.
Tokyo Metro CS-ATC
Tokyo Metro CS-ATC is a cab signaling-based automatic train control system used on Tokyo Metro and interconnected lines to ensure safe train operation through continuous speed supervision and automatic braking.
-
E.
Tobu ATS
Tobu ATS is an automatic train stop safety system used on Tobu Railway lines in Japan to prevent collisions and signal overruns.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
automatic train stop system
ⓘ
train protection system ⓘ |
| acronymFor |
Tokyu Automatic Train Stop
ⓘ
linked to:
Tokyu ATS
|
| appliesTo |
commuter trains
ⓘ
electric multiple units ⓘ |
| basedOn | Japanese ATS technology ⓘ |
| compatibleWith | Tokyu-compatible railway lines ⓘ |
| controlType | wayside and onboard equipment ⓘ |
| country | Japan ⓘ |
| detectionMethod |
onboard signal pickup devices
ⓘ
trackside transponders or coils ⓘ |
| developer | Tokyu Corporation ⓘ |
| domain | rail transport ⓘ |
| hasComponent |
brake interface unit
ⓘ
driver cab indication unit ⓘ onboard ATS equipment ⓘ wayside ATS equipment ⓘ |
| implementedOn |
Tokyu mainline network
ⓘ
linked to:
Tokyu railway network
|
| languageOfAcronym | English ⓘ |
| monitors |
signal aspect compliance
ⓘ
train speed ⓘ |
| operator | Tokyu Corporation ⓘ |
| prevents |
overspeed at restrictive signals
ⓘ
rear-end collisions related to SPADs ⓘ signal passed at danger incidents ⓘ |
| purpose |
enhancement of operational safety
ⓘ
prevention of trains passing signals at danger ⓘ |
| railwayLineUsage |
Tokyu Den-en-toshi Line
ⓘ
Tokyu Ikegami Line ⓘ
linked to:
Tōkyū Ikegami Line
Tokyu Kodomonokuni Line ⓘ Tokyu Meguro Line ⓘ Tokyu Oimachi Line ⓘ
linked to:
Tōkyū Ōimachi Line
Tokyu Setagaya Line ⓘ Tokyu Tamagawa Line ⓘ
linked to:
Tōkyū Tamagawa Line
Tokyu Toyoko Line ⓘ |
| railwayOperatorScope | private railway operator ⓘ |
| region |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
|
| safetyCategory | train protection ⓘ |
| safetyFunction |
automatic train stop at red signal
ⓘ
emergency brake application on overspeed ⓘ speed supervision near restrictive signals ⓘ |
| safetyGoal | fail-safe train operation ⓘ |
| safetyStandard | Japanese railway safety regulations ⓘ |
| status | in service ⓘ |
| uses |
onboard braking control
ⓘ
trackside signal information transmission ⓘ |
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: Tokyu ATS Description of subject: Tokyu ATS is an automatic train stop safety system used on Tokyu Corporation and compatible railway lines to prevent trains from passing signals at danger and to enhance operational safety.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tokyu ATS