{ "model": { "rank": 8431, "code": "thing-q1112477", "model_id": "vr.tr.narrow-gauge-railway", "name": "narrow-gauge railway", "purpose": "Let an agent handle narrow-gauge railways by gauge, line, operator, history, heritage status and visiting.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.BLT", "industry": "", "version": "", "url": "/models/thing/q1112477/", "tier": 2, "score": 51, "payload": { "layer": "wikidata", "aliases": [ "field railway", "802 mm track gauge", "900 mm track gauge", "sugar railways", "1422 mm track gauge", "Eighteen-inch gauge", "600 mm track gauge", "800 mm track gauge", "620 mm track gauge", "7½ inch gauge", "5-inch gauge", "850 mm track gauge", "825 mm track gauge", "983 mm gauge", "Plovdiv children's railway", "1055 mm track gauge", "4 3/4 inch gauge", "3 1/2 inch gauge", "one-foot gauge", "762 mm track gauge", "brickyard railway", "Lokalbahn Czudin–Koszczuja", "trench railway", "Narrow gauge railways in Germany", "600 mm gauge railways in Germany", "Narrow gauge railways in Latvia", "Two foot and 600 mm gauge railway", "narrow gauge railways in Italy", "891 mm track gauge", "950 mm track gauge", "Sabor line", "Two foot and 600 mm gauge", "410 mm track gauge", "Decauville", "rideable miniature railway", "720 mm track gauge", "Tramway Unterach–See", "785 mm track gauge", "two-foot three-inch gauge", "750 mm track gauge" ], "aliasCount": 57, "merged": 57, "knownIn": 51, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q1112477", "url": "https://www.wikidata.org/wiki/Q1112477", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T09:42:29Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q1112477", "registryId": "vr.tr.narrow-gauge-railway", "name": "narrow-gauge railway", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.BLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1112477/", "model": { "registry_id": "vr.tr.narrow-gauge-railway", "name": "narrow-gauge railway", "purpose": "Let an agent handle narrow-gauge railways by gauge, line, operator, history, heritage status and visiting.", "definition": "A railway with a track gauge narrower than standard gauge (1435 mm), commonly 1000 mm, 1067 mm, 762 mm or 600 mm, used on mountain, industrial, rural and heritage lines.", "what_it_is_for": "Transport where terrain or cost favours narrower track, and heritage tourism.", "affordances": [ "identify gauge and line", "find timetables for heritage lines", "compare gauges by region", "volunteer with heritage railways" ], "distinguishing_features": [ "Narrower than standard gauge", "Cheaper to build in difficult terrain", "Many now heritage lines", "Break of gauge with main lines" ], "appearance": "Smaller trains on narrow track, often in mountains or on industrial sites.", "visual_identification": [ "Track gauge under 1435 mm", "Tight curves and small rolling stock", "Metre gauge is common in many countries" ], "physical_properties": [ { "quantity": "common gauges", "typical_range": "600-1067", "unit": "mm", "note": "selection" } ], "families_and_kinds": [ "metre gauge", "Cape gauge (1067 mm)", "762 mm and 750 mm gauges", "600 mm field and industrial railways", "heritage narrow-gauge lines" ], "related_models": [ { "relation": "is a kind of", "target": "railway line", "why": "category" }, { "relation": "is defined by", "target": "track gauge", "why": "measure" }, { "relation": "is contrasted with", "target": "standard gauge", "why": "reference" }, { "relation": "is operated as", "target": "heritage railway", "why": "use" } ], "identifiers": [], "standards_and_regulation": [ "National railway safety law", "Heritage railway regulations" ], "failure_modes_and_hazards": [ "Level crossing accidents", "Outdated timetables" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "line", "name": "Line", "description": "Which railway.", "rationale": "Lines differ.", "layers": [ { "id": "gauge", "name": "Gauge", "description": "Track gauge.", "findings": [ { "id": "gauge-finding", "name": "Gauge", "description": "Track gauge.", "questions": [ { "text": "What is the track gauge?", "kind": "measurement" }, { "text": "Is it common in this region?", "kind": "provenance" } ] } ] }, { "id": "operator", "name": "Operator", "description": "Who runs it.", "findings": [ { "id": "operator-finding", "name": "Operator", "description": "Operator.", "questions": [ { "text": "Who operates the line?", "kind": "provenance" }, { "text": "Is it public transport or heritage?", "kind": "definition" } ] } ] } ] }, { "id": "travel", "name": "Travel", "description": "Riding.", "rationale": "Travellers need facts.", "layers": [ { "id": "timetable", "name": "Timetable", "description": "Services.", "findings": [ { "id": "timetable-finding", "name": "Timetable", "description": "Timetable.", "questions": [ { "text": "When do trains run, from the official timetable?", "kind": "provenance" }, { "text": "Is it seasonal?", "kind": "provenance" } ] } ] }, { "id": "access", "name": "Access", "description": "Accessibility.", "findings": [ { "id": "access-finding", "name": "Access", "description": "Accessibility.", "questions": [ { "text": "Can wheelchair users travel on the line?", "kind": "provenance" }, { "text": "How should assistance be booked?", "kind": "action" } ] } ] } ] }, { "id": "history", "name": "History", "description": "Heritage.", "rationale": "Lines have histories.", "layers": [ { "id": "origin", "name": "Origin", "description": "Construction.", "findings": [ { "id": "origin-finding", "name": "Origin", "description": "Origin.", "questions": [ { "text": "When and why was the line built?", "kind": "provenance" }, { "text": "What did it carry?", "kind": "provenance" } ] } ] }, { "id": "heritage", "name": "Heritage", "description": "Preservation.", "findings": [ { "id": "heritage-finding", "name": "Heritage", "description": "Preservation.", "questions": [ { "text": "Is the line preserved as heritage?", "kind": "provenance" }, { "text": "How can volunteers help?", "kind": "action" } ] } ] } ] }, { "id": "safety", "name": "Safety", "description": "Crossings.", "rationale": "Railways are dangerous.", "layers": [ { "id": "crossings", "name": "Crossings", "description": "Level crossings.", "findings": [ { "id": "crossings-finding", "name": "Crossings", "description": "Level crossings.", "questions": [ { "text": "How should people cross the line safely?", "kind": "action" }, { "text": "Where are crossings?", "kind": "provenance" } ] } ] }, { "id": "trespass", "name": "Trespass", "description": "Tracks.", "findings": [ { "id": "trespass-finding", "name": "Trespass", "description": "Trespass.", "questions": [ { "text": "Is walking on the track forbidden here?", "kind": "provenance" }, { "text": "Who should be told of hazards?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should each gauge be a separate entry?", "How should lines be linked?", "How should industrial lines be classified?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "building, structure or infrastructure", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a narrow-gauge railway, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent handle narrow-gauge railways by gauge, line, operator, history, heritage status and visiting.", "characteristics": { "substance": "material", "origin": "manufactured", "agency": "inert", "mobility": "fixed", "scale": "built" }, "whatYouCanDoWithIt": [ "observed and measured", "entered, crossed or travelled along" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: field railway, 802 mm track gauge, 900 mm track gauge, sugar railways, 1422 mm track gauge, Eighteen-inch gauge, 600 mm track gauge, 800 mm track gauge, 620 mm track gauge, 7½ inch gauge, 5-inch gauge, 850 mm track gauge.", "57 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 51 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a narrow-gauge railway, and on what evidence are they told apart?" ], "whatItIsMadeOf": "matter you can touch", "physicalCharacter": [ "On the scale of a building: sited rather than moved.", "Stays where it was put; moving it is a project.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state", "enter it, cross it, travel along it" ], "howItIsRecognised": [ "Recognised by form, materials and siting, and confirmed by address or by a register entry rather than by looking." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "field railway", "802 mm track gauge", "900 mm track gauge", "sugar railways", "1422 mm track gauge", "Eighteen-inch gauge", "600 mm track gauge", "800 mm track gauge", "620 mm track gauge", "7½ inch gauge", "5-inch gauge", "850 mm track gauge" ] } ], "standing": "Described in 51 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 57 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one narrow-gauge railway from another, and a narrow-gauge railway from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a narrow-gauge railway sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a narrow-gauge railway from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a narrow-gauge railway is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples at built scale.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a narrow-gauge railway is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a narrow-gauge railway is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a narrow-gauge railway is, how it got there and where it may go (fixed).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a narrow-gauge railway is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a narrow-gauge railway is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a narrow-gauge railway passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a narrow-gauge railway between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a narrow-gauge railway, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a narrow-gauge railway is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "use-and-operation", "name": "Use and operation", "description": "What can be done with a narrow-gauge railway and what it takes to do it.", "rationale": "An agent that can recognise a thing but not act on it has only half a model.", "layers": [ { "id": "intended-use", "name": "Intended use and function", "description": "What a narrow-gauge railway is for, and what it is used for anyway.", "findings": [ { "id": "function-and-purpose", "name": "Function, purpose and misuse", "description": "The function a narrow-gauge railway performs and the uses that fall outside it.", "questions": [ { "id": "function-and-purpose-q01", "text": "What identifies and describes the use of a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "function-and-purpose-q02", "text": "Who or what asserted this about the use of a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "function-and-purpose-q03", "text": "What may an agent decide or do once the use of a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "handling-and-procedure", "name": "Handling and procedure", "description": "The steps, skills and tools involved in using a narrow-gauge railway.", "findings": [ { "id": "procedures-and-skills", "name": "Procedures, skills and required tools", "description": "What an agent needs before it can act on a narrow-gauge railway at all.", "questions": [ { "id": "procedures-and-skills-q01", "text": "What identifies and describes handling a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "procedures-and-skills-q02", "text": "Who or what asserted this about handling a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "procedures-and-skills-q03", "text": "What may an agent decide or do once handling a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "structure-and-capacity", "name": "Structure, materials and capacity", "description": "How narrow-gauge railway is built and how much it can take.", "rationale": "Capacity and structural type govern what may lawfully happen inside or on it, and both are attested rather than obvious.", "layers": [ { "id": "construction", "name": "Construction and materials", "description": "Structural type, materials and principal dimensions.", "findings": [ { "id": "construction-record", "name": "Structural type and dimensions", "description": "What it is made of and how big it is.", "questions": [ { "id": "construction-record-q01", "text": "What structural type and materials characterise narrow-gauge railway, and what are its principal dimensions?", "kind": "measurement" }, { "id": "construction-record-q02", "text": "What in that construction limits how it may be altered?", "kind": "boundary" } ] } ] }, { "id": "capacity-and-load", "name": "Capacity and load", "description": "Occupancy, load ratings and their basis.", "findings": [ { "id": "capacity-record", "name": "Rated capacity and who set it", "description": "The limits and the authority that certified them.", "questions": [ { "id": "capacity-record-q01", "text": "What capacity or load is narrow-gauge railway rated for, under which code, certified by whom?", "kind": "provenance" }, { "id": "capacity-record-q02", "text": "What must an agent refuse to permit beyond that rating?", "kind": "action" } ] } ] } ] }, { "id": "tenure-and-condition", "name": "Ownership, permitting and condition", "description": "Who holds narrow-gauge railway, what it is permitted for, and what state it is in.", "rationale": "A structure is not the organisation that uses it, and its permission to exist is separate from its condition.", "layers": [ { "id": "tenure", "name": "Ownership and permission", "description": "Title, occupancy and the permits in force.", "findings": [ { "id": "tenure-record", "name": "Title, occupier and permits", "description": "Who owns, who occupies, and what is permitted.", "questions": [ { "id": "tenure-record-q01", "text": "Who owns and who occupies narrow-gauge railway, and which permits or consents are in force?", "kind": "definition" }, { "id": "tenure-record-q02", "text": "What distinguishes the structure from the organisation that operates in it?", "kind": "boundary" } ] } ] }, { "id": "inspection", "name": "Condition and inspection", "description": "Inspection regime, defects and remaining service life.", "findings": [ { "id": "inspection-record", "name": "Inspections and defects", "description": "What is inspected, how often, and what was found.", "questions": [ { "id": "inspection-record-q01", "text": "What inspection regime applies to narrow-gauge railway, at what interval, and by whom?", "kind": "provenance" }, { "id": "inspection-record-q02", "text": "What finding takes it out of service, and who may authorise its return?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a narrow-gauge railway came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a narrow-gauge railway and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a narrow-gauge railway is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a narrow-gauge railway, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a narrow-gauge railway, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a narrow-gauge railway is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 8, "layers": 17, "findings": 19, "questions": 53 } } } }