{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.tree-tunnel","code":"thing-q2961103","url":"https://ver.cy/models/thing/q2961103/","name":"tree tunnel","alternateNames":[],"kind":"thing","status":"published","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.BLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A road, lane or path lined by trees whose canopies meet overhead to form a tunnel-like arch, created by planted avenues or natural growth, found in places such as the Dark Hedges in Northern Ireland, an avenue of beech trees planted in the 18th century and made famous as a filming location, and the Tunnel of Love railway near Klevan in Ukraine; such roads are valued for scenery and habitat but raise safety issues with falling branches and restricted visibility, and ageing trees may need management or removal under local rules.","purpose":"Let an agent explain tree tunnels, relay formation, notable examples, ecology, heritage and safety from landscape and road management sources, and distinguish tree tunnels from avenues without closed canopies, hedgerows, pergolas and railway or road tunnels through rock.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Closed canopy","Linear route","Seasonal appearance","Tourism appeal"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a tree tunnel is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a tree tunnel, and how does it differ from avenues, hedgerows, pergolas and rock tunnels?","kind":"definition"},{"text":"Has a tree fallen across a road, in which case avoid it and report to highway authorities or emergency services?","kind":"boundary"}]}]},{"id":"examples","name":"Examples","description":"Notable examples.","findings":[{"id":"examples-finding","name":"Examples","description":"Examples.","questions":[{"text":"What are the Dark Hedges and the Tunnel of Love?","kind":"definition"},{"text":"Which entry fits the specific site?","kind":"action"}]}]}]},{"id":"landscape","name":"Landscape","description":"Formation.","layers":[{"id":"planting","name":"Planting","description":"Avenue planting.","findings":[{"id":"planting-finding","name":"Planting","description":"Planting.","questions":[{"text":"Why were tree avenues planted on estates?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"ecology","name":"Ecology","description":"Ecology.","findings":[{"id":"ecology-finding","name":"Ecology","description":"Ecology.","questions":[{"text":"What habitat do old avenue trees provide?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"management","name":"Management","description":"Management.","layers":[{"id":"safety","name":"Safety","description":"Tree safety.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"How do authorities inspect and manage roadside trees?","kind":"provenance"},{"text":"Which entry fits tree preservation order?","kind":"action"}]}]},{"id":"tourism","name":"Tourism","description":"Tourism pressure.","findings":[{"id":"tourism-finding","name":"Tourism","description":"Tourism.","questions":[{"text":"How have filming and social media affected sites such as the Dark Hedges, as reported?","kind":"provenance"},{"text":"Is the information current?","kind":"boundary"}]}]}]},{"id":"context","name":"Context","description":"Culture.","layers":[{"id":"film","name":"Film","description":"Film locations.","findings":[{"id":"film-finding","name":"Film","description":"Film.","questions":[{"text":"Why are tree tunnels popular filming locations?","kind":"provenance"},{"text":"Which entry fits film location?","kind":"action"}]}]},{"id":"canopy","name":"Canopy roads","description":"Canopy road programmes.","findings":[{"id":"canopy-finding","name":"Canopy roads","description":"Canopy roads.","questions":[{"text":"How do some cities protect designated canopy roads?","kind":"provenance"},{"text":"Which entry fits urban forestry?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Describe a tree tunnel's location, history and access rules.","Report fallen or dangerous trees and branches to the landowner or highway authority."],"mustNot":["Encourage visitors to stop vehicles or stand in the road under a tree tunnel.","Damage trees, roots or bark, or encourage visitors to do so.","Direct crowds to a site that has closed or restricted access.","Ignore storm warnings when giving travel advice through one."],"requiresHuman":["Felling or heavily pruning trees in a valued avenue."]},"ethics":{"considerations":["Popular tree tunnels suffer from crowds, parking and root damage that can kill the trees.","Old avenue trees can fall without warning in storms."],"affectedParties":["Visitors","Road users","Local residents"]},"owners":{"steward":"The landowner or highway authority; some avenues are protected by conservation or heritage bodies.","roles":[],"masterSystems":[]},"relations":[{"target":"Q123414165","type":"parent","note":"registry parent class"},{"target":"road or street","type":"related","note":"in registry terms"},{"target":"avenue (landscape)","type":"related"},{"target":"Dark Hedges","type":"related","note":"instance"},{"target":"tunnel","type":"related"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.tree-tunnel","Wikidata: Q2961103 (https://www.wikidata.org/wiki/Q2961103)"]},"properties":{"applicability":"required","items":["Dark Hedges planting: about 1775 note - beech avenue","Tunnel of Love: near Klevan, Ukraine note - industrial railway","registry parent: road or street note"]},"recognition":{"applicability":"required","items":["Tree-covered road or path","Tree tunnel, tunnel of trees, canopy road","Avenues may lack closed canopies; hedgerows are shrub lines; pergolas are built frames; tunnels through rock are engineered structures","A road or path with trees arching overhead to create a green or bare-branched tunnel."]},"capabilities":{"applicability":"required","items":["explain formation","relay notable examples","describe ecology and heritage","relay safety and management"]},"hazards":{"applicability":"required","items":["Falling branches and trees","Tourist crowding and traffic","Root damage from vehicles"]},"interfaces":{"applicability":"required","items":["Tree preservation orders","Highway safety and tree inspection duties"]},"context":{"applicability":"required","items":["Scenic and shaded routes.","planted avenues","natural canopy roads","railway tree tunnels","pedestrian tree tunnels"]}},"sources":[{"title":"Wikidata item Q2961103: tree tunnel","url":"https://www.wikidata.org/wiki/Q2961103","note":"identity and sense of the item"},{"title":"Wikipedia: Tree tunnel","url":"https://en.wikipedia.org/wiki/Tree_tunnel","note":"general description of the item"}],"openQuestions":["Should notable tree tunnels be linked as instances?","How should tree management sources be linked?","Should canopy roads be a separate entry?"],"resources":{"spec":"/models/things/publications/thing-q2961103/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q2961103/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T23:16:03Z","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 2026-10-06T19:51:58+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}