Road Development Authority of Sri Lanka
E396935
The Road Development Authority of Sri Lanka is the government agency responsible for planning, constructing, and maintaining the country’s national highways and major road infrastructure.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Road Development Authority of Sri Lanka canonical | 9 |
How this entity was disambiguated
This entity first appeared as the object of triple T3912242 — 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: Road Development Authority of Sri Lanka Context triple: [A15 coastal highway, maintainedBy, Road Development Authority of Sri Lanka]
-
A.
Sri Lanka Railways
Sri Lanka Railways is the state-owned national railway operator of Sri Lanka, providing passenger and freight rail services across the country.
-
B.
University Grants Commission of Sri Lanka
The University Grants Commission of Sri Lanka is the state body responsible for planning, coordinating, and regulating the country’s public university system and allocating government funding to higher education institutions.
-
C.
Government of Sri Lanka
The Government of Sri Lanka is the central governing authority of the Democratic Socialist Republic of Sri Lanka, responsible for national administration, policymaking, and the implementation of laws across the country.
-
D.
Airport and Aviation Services (Sri Lanka) Limited
Airport and Aviation Services (Sri Lanka) Limited is the state-owned company responsible for managing and operating major civil airports and air navigation services in Sri Lanka.
-
E.
Roads and Transport Authority
The Roads and Transport Authority is Dubai’s government agency responsible for planning, operating, and regulating the emirate’s public transport systems and road infrastructure.
- 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: Road Development Authority of Sri Lanka Target entity description: The Road Development Authority of Sri Lanka is the government agency responsible for planning, constructing, and maintaining the country’s national highways and major road infrastructure.
-
A.
Sri Lanka Railways
Sri Lanka Railways is the state-owned national railway operator of Sri Lanka, providing passenger and freight rail services across the country.
-
B.
University Grants Commission of Sri Lanka
The University Grants Commission of Sri Lanka is the state body responsible for planning, coordinating, and regulating the country’s public university system and allocating government funding to higher education institutions.
-
C.
Government of Sri Lanka
The Government of Sri Lanka is the central governing authority of the Democratic Socialist Republic of Sri Lanka, responsible for national administration, policymaking, and the implementation of laws across the country.
-
D.
Airport and Aviation Services (Sri Lanka) Limited
Airport and Aviation Services (Sri Lanka) Limited is the state-owned company responsible for managing and operating major civil airports and air navigation services in Sri Lanka.
-
E.
Roads and Transport Authority
The Roads and Transport Authority is Dubai’s government agency responsible for planning, operating, and regulating the emirate’s public transport systems and road infrastructure.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
government agency
ⓘ
road authority ⓘ |
| collaboratesWith |
National Transport Commission of Sri Lanka
ⓘ
Provincial road agencies of Sri Lanka ⓘ Urban Development Authority of Sri Lanka ⓘ |
| continent | Asia ⓘ |
| country | Sri Lanka ⓘ |
| goal |
enhancement of road safety on national highways
ⓘ
improvement of national road connectivity in Sri Lanka ⓘ reduction of travel time on major corridors ⓘ support for economic development through road infrastructure ⓘ |
| governmentBranch | executive branch of Sri Lanka ⓘ |
| headquartersLocation | Colombo ⓘ |
| jurisdiction | Government of Sri Lanka ⓘ |
| legalStatus | statutory body ⓘ |
| locatedIn | Colombo ⓘ |
| networkType |
A-class roads
ⓘ
B-class roads ⓘ expressways ⓘ national highways ⓘ |
| officialLanguage |
English
ⓘ
Sinhala ⓘ Tamil ⓘ |
| parentOrganization |
Ministry of Highways of Sri Lanka
ⓘ
linked to:
Ministry of Highways (Sri Lanka)
|
| regionServed | Sri Lanka ⓘ |
| responsibility |
bridge construction and maintenance on national roads
ⓘ
capacity expansion of major roads ⓘ construction of national highways in Sri Lanka ⓘ development of expressways in Sri Lanka ⓘ implementation of national road development projects ⓘ maintenance of national highways in Sri Lanka ⓘ management of major road infrastructure in Sri Lanka ⓘ operation and maintenance of expressways in Sri Lanka ⓘ planning of national highways in Sri Lanka ⓘ road asset management for national road network ⓘ road safety improvements on national highways ⓘ toll collection on designated expressways ⓘ |
| sector |
road transport
ⓘ
transport infrastructure ⓘ |
| shortName | RDA ⓘ |
| subOrganization |
Bridge Design Division
ⓘ
linked to:
Civil Infrastructure Division
Construction Division ⓘ Expressway Operation Maintenance and Management Division ⓘ Maintenance Division ⓘ Planning Division ⓘ |
| usesStandard | Sri Lankan national road design standards ⓘ |
| website | http://www.rda.gov.lk ⓘ |
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: Road Development Authority of Sri Lanka Description of subject: The Road Development Authority of Sri Lanka is the government agency responsible for planning, constructing, and maintaining the country’s national highways and major road infrastructure.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Southern Expressway of Sri Lanka
Colombo–Galle–Hambantota–Wellawaya Highway (A2)
→
maintainedBy
→
Road Development Authority of Sri Lanka
ⓘ
A14 highway (Medawachchiya–Mannar–Talaimannar Road)
→
maintainedBy
→
Road Development Authority of Sri Lanka
ⓘ