benchmark
Let an agent explain survey benchmarks and geodetic reference points, help find and use them, explain their maintenance and protection, and separate the comparison sense of benchmark.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Claude
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Find Locating benchmarks.
Locate
Finding a benchmark.
Locate
Finding.
- Where is the nearest benchmark, and what are its recorded height and datum, according to the survey authority? provenance
- Is it still intact? boundary
Data
Benchmark data.
Data
Data.
- Which datum and reference frame does this benchmark use? provenance
- How is height transferred from it? action
Use Surveying with benchmarks.
Levelling
Levelling.
Levelling
Levelling.
- How is a benchmark used in levelling to establish heights on a site? action
- Which errors must be controlled? provenance
GNSS
Permanent stations.
GNSS
GNSS stations.
- How do GNSS permanent stations serve as benchmarks, and how are their data accessed? provenance
- How do datums relate to GNSS heights? definition
Protect Maintenance.
Law
Protection.
Law
Protection.
- Which laws protect survey marks, and how should damage be reported? provenance
- What are the penalties for disturbing them? provenance
History
Historic benchmarks.
History
History.
- What are the historical benchmarks on buildings and their symbols? provenance
- How are they catalogued by enthusiasts and authorities? provenance
Senses Disambiguation.
Comparison
Benchmark as standard.
Comparison
Comparison sense.
- Is benchmark meant as a standard of comparison in computing, business or finance? boundary
- Which entry fits? action
Teach
Teaching surveying.
Teach
Teaching.
- How can benchmarks and datums be taught? action
- Which misconceptions arise? provenance
Classifiers Filled
- Family
- Thing Registry
- Domain
- PHY.BLT
What it is Filled
A fixed physical reference point of known elevation or position used in surveying and levelling, such as a bolt, plate or carved mark on a building, a GNSS permanent station, a boundary point or a high water mark; benchmarks form geodetic networks that underpin mapping, construction and monitoring, and the word also denotes a standard for comparison in computing and business.
Why it exists Filled
Let an agent explain survey benchmarks and geodetic reference points, help find and use them, explain their maintenance and protection, and separate the comparison sense of benchmark.
Distinguishing features Filled
- Known elevation or position
- Part of a network
- Physically fixed
- Protected
What robots and AI may and may not do Derived, awaiting review
May
- explain benchmark types and networks
- find benchmarks and their data
- explain use in levelling and GNSS
- separate the comparison sense
Note: Affordances listed as what may be done; prohibitions collected from the text.
Moral aspects Missing, in the backlog
Not described yet. This gap is in the card backlog.
Owners Missing, in the backlog
Not described yet. This gap is in the card backlog.
Links to other meta-models Filled
related
- geodetic station - category
- geographical marker - category
- navigational aid - other markers
- time zone - time reference by analogy
What else AI and robots need to interact with it Incomplete
Identity and identifiers required Missing, in the backlog
Not described yet. This gap is in the card backlog.
Direct properties required Missing, in the backlog
Not described yet. This gap is in the card backlog.
Recognition required Filled
- Marked reference points
- Recorded in survey registers
- A trig point is a triangulation station for horizontal control
- Marks, bolts, plates or pillars with known coordinates or heights.
Capabilities and actions required Filled
- explain benchmark types and networks
- find benchmarks and their data
- explain use in levelling and GNSS
- separate the comparison sense
Hazards and failure modes required Filled
- Disturbed or destroyed marks
- Datum confusion
- Confusing senses
Standards and interfaces required Filled
- National geodetic datum and survey standards
- Laws protecting survey marks
- GNSS reference frame standards
Context of use required Filled
- Surveying, mapping and construction.
- levelling benchmarks such as bolts and plates
- GNSS permanent stations
- boundary points
- tidal and high water marks
- historical benchmarks on buildings
Sources Missing, in the backlog
Not described yet. This gap is in the card backlog.
Note: Written from model knowledge without web access; claims are unverified.
Open questions
- Should GNSS stations be a separate entry?
- How should benchmark databases be linked?
- How should datum changes be recorded?
- How is height transferred from it?
- How is a benchmark used in levelling to establish heights on a site?
- Which entry fits?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1161707/spec.json