{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T10:00:33Z", "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", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-05T17:00:00Z", "ingestedAt": "2026-10-05T13:25:03+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] } }, "metaModel": { "id": "THING-Q1960395", "registryId": "vr.tr.span", "name": "span", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QTY" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1960395/", "model": { "registry_id": "vr.tr.span", "name": "span", "purpose": "Let an agent handle spans by structure, length, type, design and inspection, and separate other senses such as time span and wingspan.", "definition": "The distance between two supports of a structure such as a bridge, beam or arch, or the structural section between them; also the full length of a bridge carriageway in one direction.", "what_it_is_for": "Describing and designing structures between supports.", "affordances": [ "compare bridge spans", "relate span to structural type", "check span tables for beams", "find inspection and load information" ], "distinguishing_features": [ "Distance between supports", "Drives structural choice", "Measured in several ways", "Key for loads and deflection" ], "appearance": "The open length of a bridge or beam between piers, abutments or columns.", "visual_identification": [ "Main span and side spans", "Clear span versus centre-to-centre", "Wingspan and time span are other senses" ], "physical_properties": [ { "quantity": "longest suspension bridge main spans", "typical_range": "about 2000", "unit": "m", "note": "order of magnitude, record holders" } ], "families_and_kinds": [ "main spans", "side and approach spans", "clear spans", "continuous and simple spans" ], "related_models": [ { "relation": "is a kind of", "target": "length and structural element", "why": "category" }, { "relation": "is part of", "target": "bridge", "why": "structure" }, { "relation": "is supported by", "target": "pier and abutment", "why": "supports" }, { "relation": "is confused with", "target": "time span", "why": "another sense" } ], "identifiers": [], "standards_and_regulation": [ "Eurocodes for bridge and beam design", "Timber and steel span tables", "Bridge inspection standards" ], "failure_modes_and_hazards": [ "Excessive deflection", "Overloading", "Using span tables beyond their scope" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Report the span of a bridge or beam from design records or measurement.", "Flag deflection, cracking or damage in a span to the structure's owner." ], "must_not": [ "Approve loads on a span beyond its rated capacity.", "Hide or downplay defects found in a span that people cross or work under.", "Alter supports or remove members of a span without engineering approval." ], "requires_human": [ "Closing or reopening a bridge span to traffic.", "Accepting a span as safe after damage or repair." ] }, "ethics": { "considerations": [ "People cross and live under spans; a failure kills without warning.", "Closing a span cuts off communities and emergency access." ], "affected_parties": [ "People crossing or under the structure", "Communities that depend on the crossing", "Workers on inspection and repair" ] }, "owners": { "steward": "The owner of the structure, such as a highway or rail authority; a qualified engineer answers for its design.", "master_systems": [ "Bridge and structure asset registers" ] } }, "sources": [], "structure": { "bundles": [ { "id": "measure", "name": "Measure", "description": "Length.", "rationale": "Definitions differ.", "layers": [ { "id": "length", "name": "Length", "description": "Value.", "findings": [ { "id": "length-finding", "name": "Length", "description": "Span length.", "questions": [ { "text": "What is the span length and how is it measured?", "kind": "measurement" }, { "text": "Is it clear span or centre-to-centre?", "kind": "definition" } ] } ] }, { "id": "context", "name": "Context", "description": "Which structure.", "findings": [ { "id": "context-finding", "name": "Context", "description": "Structure.", "questions": [ { "text": "Which bridge, beam or roof is meant?", "kind": "provenance" }, { "text": "Is it the main span?", "kind": "definition" } ] } ] } ] }, { "id": "design", "name": "Design", "description": "Structural choice.", "rationale": "Span drives design.", "layers": [ { "id": "type", "name": "Type", "description": "Structural system.", "findings": [ { "id": "type-finding", "name": "Type", "description": "Structural system.", "questions": [ { "text": "Which structural system suits this span?", "kind": "definition" }, { "text": "Why?", "kind": "definition" } ] } ] }, { "id": "tables", "name": "Tables", "description": "Span tables.", "findings": [ { "id": "tables-finding", "name": "Tables", "description": "Span tables.", "questions": [ { "text": "What span does the table allow for this beam and load?", "kind": "provenance" }, { "text": "Should an engineer check the design?", "kind": "action" } ] } ] } ] }, { "id": "safety", "name": "Safety", "description": "Loads and inspection.", "rationale": "Structures need checks.", "layers": [ { "id": "loads", "name": "Loads", "description": "Limits.", "findings": [ { "id": "loads-finding", "name": "Loads", "description": "Load limits.", "questions": [ { "text": "What load limits apply to the span?", "kind": "provenance" }, { "text": "Are weight restrictions posted?", "kind": "provenance" } ] } ] }, { "id": "inspection", "name": "Inspection", "description": "Condition.", "findings": [ { "id": "inspection-finding", "name": "Inspection", "description": "Inspection.", "questions": [ { "text": "When was the span last inspected?", "kind": "provenance" }, { "text": "What condition was recorded?", "kind": "provenance" } ] } ] } ] }, { "id": "senses", "name": "Senses", "description": "Disambiguation.", "rationale": "Span has other senses.", "layers": [ { "id": "time", "name": "Time", "description": "Time span.", "findings": [ { "id": "time-finding", "name": "Time", "description": "Time sense.", "questions": [ { "text": "Is a period of time meant?", "kind": "boundary" }, { "text": "Which entry fits?", "kind": "action" } ] } ] }, { "id": "other", "name": "Other", "description": "Wingspan, hand span.", "findings": [ { "id": "other-finding", "name": "Other", "description": "Other senses.", "questions": [ { "text": "Is a wingspan or hand span meant?", "kind": "boundary" }, { "text": "Which entry fits?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should span types be separate entries?", "How should bridge records be linked?", "How should other senses be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }