Bus Tracker real-time information system
E244494
Bus Tracker real-time information system is the Chicago Transit Authority’s online and mobile platform that provides riders with live tracking and predicted arrival times for CTA buses.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bus Tracker real-time information system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2208141 — 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: Bus Tracker real-time information system Context triple: [CTA buses, informationService, Bus Tracker real-time information system]
-
A.
TheBus routes
TheBus routes are Honolulu’s primary public bus lines that provide extensive transit service throughout Oʻahu, including to and from the Mānoa area.
-
B.
MetroAccess
MetroAccess is a paratransit service providing door-to-door transportation for people with disabilities in the Washington, D.C. metropolitan area.
-
C.
Transitway
Transitway is a bus rapid transit network in Ottawa, Ontario, providing high-capacity, grade-separated transit service across the city.
-
D.
GoRaleigh bus system
The GoRaleigh bus system is the primary public transit network serving Raleigh, North Carolina and surrounding areas with fixed-route and paratransit bus services.
-
E.
Greenway Public Transportation
Greenway Public Transportation is a regional public transit agency providing bus and demand-response services in and around Newton, North Carolina.
- 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: Bus Tracker real-time information system Target entity description: Bus Tracker real-time information system is the Chicago Transit Authority’s online and mobile platform that provides riders with live tracking and predicted arrival times for CTA buses.
-
A.
TheBus routes
TheBus routes are Honolulu’s primary public bus lines that provide extensive transit service throughout Oʻahu, including to and from the Mānoa area.
-
B.
MetroAccess
MetroAccess is a paratransit service providing door-to-door transportation for people with disabilities in the Washington, D.C. metropolitan area.
-
C.
Transitway
Transitway is a bus rapid transit network in Ottawa, Ontario, providing high-capacity, grade-separated transit service across the city.
-
D.
GoRaleigh bus system
The GoRaleigh bus system is the primary public transit network serving Raleigh, North Carolina and surrounding areas with fixed-route and paratransit bus services.
-
E.
Greenway Public Transportation
Greenway Public Transportation is a regional public transit agency providing bus and demand-response services in and around Newton, North Carolina.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
public transit information service
ⓘ
real-time passenger information system ⓘ |
| accessibleVia |
mobile browser
ⓘ
third-party transit apps ⓘ web browser ⓘ |
| brand |
CTA buses
ⓘ
surface form:
CTA Bus Tracker
|
| country |
United States of America
ⓘ
surface form:
United States
|
| dataSource |
GPS data from buses
ⓘ
automatic vehicle location system ⓘ |
| dataType |
real-time operations data
ⓘ
schedule adherence data ⓘ |
| hasFeature |
map-based vehicle display
ⓘ
mobile-friendly interface ⓘ public API for developers ⓘ route selection ⓘ stop-based arrival predictions ⓘ |
| hasLanguage | English ⓘ |
| industry | intelligent transportation systems ⓘ |
| locatedIn |
Chicago, Illinois, United States
ⓘ
surface form:
Chicago
|
| modeServed | bus ⓘ |
| operator |
CTA
ⓘ
Chicago Transit Authority ⓘ |
| owner | Chicago Transit Authority ⓘ |
| partOf |
CTA
ⓘ
surface form:
CTA customer information systems
|
| platformType |
API
ⓘ
mobile web application ⓘ web application ⓘ |
| provides |
predicted bus arrival times
ⓘ
real-time bus location information ⓘ route-specific bus information ⓘ stop-specific bus information ⓘ |
| purpose |
improve rider information
ⓘ
reduce passenger wait uncertainty ⓘ support multimodal trip planning with CTA buses ⓘ |
| regionServed | Illinois ⓘ |
| sector |
public transportation
ⓘ
urban transit ⓘ |
| serviceArea |
Chicago
ⓘ
Chicago metropolitan area ⓘ |
| serviceOf |
Chicago Transit Authority
ⓘ
surface form:
Chicago Transit Authority bus network
|
| targetUser |
CTA bus riders
ⓘ
commuters in Chicago ⓘ visitors using CTA buses ⓘ |
| usedFor |
bus arrival prediction
ⓘ
public transit trip planning support ⓘ real-time bus tracking ⓘ |
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: Bus Tracker real-time information system Description of subject: Bus Tracker real-time information system is the Chicago Transit Authority’s online and mobile platform that provides riders with live tracking and predicted arrival times for CTA buses.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.