{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.canal","code":"thing-q12284","url":"https://ver.cy/models/thing/q12284/","name":"canal","alternateNames":["summit level","underground irrigation canal","navigable aqueduct","solar canal","branch canal","open water channel","qanat","inundation canal","tail race","bog canal","hydropower canal","drainage ditch"],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"An artificial waterway constructed for navigation, irrigation, water supply, drainage or power, consisting of a channel with controlled water levels, often with locks, aqueducts, tunnels and summit levels to cross terrain, in forms from ancient irrigation canals and underground qanats to ship canals such as Suez and Panama, inland navigation networks, branch canals and modern solar-covered canals; canals are infrastructure managed by authorities and are also heritage, recreation and ecological corridors.","purpose":"Let an agent explain canals and their types and engineering, identify notable canals with sources, describe navigation, management and heritage, and support geographic, historical and engineering questions.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Constructed","Controlled levels","Locks and structures","Multiple purposes"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What canals are.","layers":[{"id":"types","name":"Types","description":"Types and purposes.","findings":[{"id":"types-finding","name":"Types","description":"Types.","questions":[{"text":"What types of canal exist, and how do navigation, irrigation, supply and drainage canals differ?","kind":"definition"},{"text":"Which entry fits a specific canal type?","kind":"action"}]}]},{"id":"engineering","name":"Engineering","description":"Engineering.","findings":[{"id":"engineering-finding","name":"Engineering","description":"Engineering.","questions":[{"text":"How do locks, summit levels, aqueducts, tunnels and water supply allow canals to cross terrain?","kind":"definition"},{"text":"Which entry fits canal locks?","kind":"action"}]}]}]},{"id":"use","name":"Use","description":"Navigation and management.","layers":[{"id":"navigate","name":"Navigate","description":"Navigation.","findings":[{"id":"navigate-finding","name":"Navigate","description":"Navigation.","questions":[{"text":"How are canals navigated, and what rules and licences apply to boats?","kind":"provenance"},{"text":"Which entry fits a specific waterway?","kind":"action"}]}]},{"id":"manage","name":"Manage","description":"Management.","findings":[{"id":"manage-finding","name":"Manage","description":"Management.","questions":[{"text":"How are canals maintained, and how is water allocated in irrigation systems?","kind":"provenance"},{"text":"Which entry fits a waterway authority?","kind":"action"}]}]}]},{"id":"notable","name":"Notable","description":"Notable canals.","layers":[{"id":"ship","name":"Ship","description":"Ship canals.","findings":[{"id":"ship-finding","name":"Ship","description":"Ship canals.","questions":[{"text":"How do the Suez, Panama and other ship canals work, and what is their significance?","kind":"provenance"},{"text":"Which entry fits a specific canal?","kind":"action"}]}]},{"id":"heritage","name":"Heritage","description":"Heritage and recreation.","findings":[{"id":"heritage-finding","name":"Heritage","description":"Heritage.","questions":[{"text":"Which canals are heritage sites, and how are they used for recreation and tourism?","kind":"provenance"},{"text":"Which entry fits a specific heritage canal?","kind":"action"}]}]}]},{"id":"learn","name":"Learn","description":"History and environment.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did canals develop from ancient irrigation to the canal age and modern waterways?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"environment","name":"Environment","description":"Environment.","findings":[{"id":"environment-finding","name":"Environment","description":"Environment.","questions":[{"text":"What ecological effects do canals have, and how are they managed?","kind":"provenance"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Report canal water levels, lock status and navigation notices from official sources.","Monitor embankments and sensors it is authorized to read.","Plan a boat route through locks within the rules of the navigation authority."],"mustNot":["Operate locks or sluices without authority.","Ignore signs of an embankment breach.","Leave a lock in a state that endangers boats or people.","Release pollutants or invasive species into a canal."],"requiresHuman":["Draining a canal section or diverting its water.","Closing navigation."]},"ethics":{"considerations":["Breaches can flood homes and farms.","Canals carry wildlife and heritage that need care."],"affectedParties":["Boaters","Residents near embankments","Wildlife"]},"owners":{"steward":"The navigation or irrigation authority that manages it.","roles":[],"masterSystems":["Waterway asset registers"]},"relations":[{"target":"Q11794693","type":"parent","note":"registry parent class"},{"target":"Q121359","type":"parent","note":"registry parent class"},{"target":"Q12376661","type":"parent","note":"registry parent class"},{"target":"Q2466889","type":"parent","note":"registry parent class"},{"target":"Q355304","type":"parent","note":"registry parent class"},{"target":"Q811979","type":"parent","note":"registry parent class"},{"target":"artificial body of water","type":"related","note":"category"},{"target":"infrastructure","type":"related","note":"category"},{"target":"drawbridge","type":"related","note":"bridges crossing canals"},{"target":"water storage","type":"related","note":"reservoirs feeding canals"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.canal","Wikidata: Q12284 (https://www.wikidata.org/wiki/Q12284)"]},"properties":{"applicability":"required","items":["Channel width:  metres - Width is measured across a surveyed section with the water level and measurement elevation specified.","Water depth:  metres - Depth is measured vertically from the water surface to the channel bed at a stated location and time.","Water discharge:  cubic metres per second - Discharge is measured or calculated from flow velocity and wetted cross-sectional area at a defined section.","Channel length:  kilometres - Length is measured along the mapped channel centerline between specified endpoints.","Bed slope:  metres per kilometre - Bed slope is calculated from the surveyed change in bed elevation over a stated channel reach."]},"recognition":{"applicability":"required","items":["Artificial channel of water","Navigation, irrigation, supply or drainage","A river is natural; an aqueduct conveys water over a structure; a ditch is small","A constructed channel of water, often with towpaths, locks and bridges."]},"capabilities":{"applicability":"required","items":["explain types and engineering","identify notable canals","describe navigation and management","support historical questions"]},"hazards":{"applicability":"required","items":["Breaches and flooding","Drowning and navigation accidents","Ecological effects and invasive species"]},"interfaces":{"applicability":"required","items":["Navigation rules and waterway authorities","Water rights and irrigation law","Heritage protection for historic canals"]},"context":{"applicability":"required","items":["Artificial waterways.","navigation canals and ship canals","irrigation canals and qanats","water supply canals","drainage canals","branch canals and summit levels"]}},"sources":[{"title":"Wikidata item Q12284: canal","url":"https://www.wikidata.org/wiki/Q12284","note":"identity and sense of the item"},{"title":"Wikipedia: Canal","url":"https://en.wikipedia.org/wiki/Canal","note":"general description of the item"}],"openQuestions":["Should ship canals be a separate entry?","How should waterway authorities be linked?","How should heritage canals be linked?"],"resources":{"spec":"/models/things/publications/thing-q12284/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q12284/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T02:29:09Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:25+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}