{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.unpaved-road","code":"thing-q137959094","url":"https://ver.cy/models/thing/q137959094/","name":"unpaved road","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 without a hard sealed surface such as asphalt or concrete, surfaced with natural earth, gravel, crushed stone or laterite, common in rural areas, forests and developing regions, and used for access, agriculture, forestry and recreation; unpaved roads are cheaper to build but require grading, dust control and drainage maintenance, and their condition varies with weather.","purpose":"Let an agent explain unpaved roads, relay types, construction, maintenance and safety from road engineering and rural development sources, describe gravel and earth roads, and distinguish unpaved roads from paved roads, tracks and trails, and unimproved roads as a classification.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["No sealed surface","Low cost","Weather sensitive","Rural access"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What an unpaved road is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is an unpaved road, and how does it differ from paved roads, tracks, trails and unimproved roads?","kind":"definition"},{"text":"Is the question about engineering, safety, rural development or recreation?","kind":"boundary"}]}]},{"id":"types","name":"Types","description":"Types.","findings":[{"id":"types-finding","name":"Types","description":"Types.","questions":[{"text":"What are gravel, earth, laterite, forest and farm roads?","kind":"definition"},{"text":"Which entry fits the specific type?","kind":"action"}]}]}]},{"id":"engineering","name":"Engineering","description":"Construction and maintenance.","layers":[{"id":"construction","name":"Construction","description":"Construction.","findings":[{"id":"construction-finding","name":"Construction","description":"Construction.","questions":[{"text":"How are unpaved roads built with camber, drainage and surface layers?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"maintenance","name":"Maintenance","description":"Maintenance.","findings":[{"id":"maintenance-finding","name":"Maintenance","description":"Maintenance.","questions":[{"text":"How are unpaved roads graded and dust-controlled?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"use","name":"Use","description":"Use and safety.","layers":[{"id":"safety","name":"Safety","description":"Safety.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"What driving safety advice do road agencies give for gravel roads?","kind":"provenance"},{"text":"Which entry fits road safety?","kind":"action"}]}]},{"id":"development","name":"Development","description":"Rural development.","findings":[{"id":"development-finding","name":"Development","description":"Development.","questions":[{"text":"How do rural roads affect access to markets and services, as studies report?","kind":"provenance"},{"text":"Which entry fits rural development?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Environment and recreation.","layers":[{"id":"environment","name":"Environment","description":"Environment.","findings":[{"id":"environment-finding","name":"Environment","description":"Environment.","questions":[{"text":"What environmental impacts do unpaved roads have?","kind":"provenance"},{"text":"Which entry fits road ecology?","kind":"action"}]}]},{"id":"recreation","name":"Recreation","description":"Recreation.","findings":[{"id":"recreation-finding","name":"Recreation","description":"Recreation.","questions":[{"text":"How are gravel roads used for cycling and overlanding?","kind":"provenance"},{"text":"Which entry fits gravel cycling?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Describe unpaved road types, surfacing and maintenance from engineering sources.","Report seasonal passability from current official or field information."],"mustNot":["Route vehicles onto an unpaved road that is reported impassable or washed out.","Describe an unpaved road as suitable for any vehicle regardless of season or clearance.","Recommend grading or drainage works that send sediment into streams."],"requiresHuman":["Sending emergency, school or heavy vehicles onto an unpaved road in wet season."]},"ethics":{"considerations":["Unpaved roads are often the only link for rural communities to health care and markets.","Dust and erosion affect the health of nearby residents and water quality."],"affectedParties":["Rural residents","Drivers and riders","Streams and fish downstream"]},"owners":{"steward":"The road authority or landowner responsible for each road.","roles":[],"masterSystems":["Road authority network inventories"]},"relations":[{"target":"Q140528331","type":"parent","note":"registry parent class"},{"target":"unimproved road","type":"related","note":"in registry terms"},{"target":"paved road","type":"related"},{"target":"gravel road","type":"related"},{"target":"rural access","type":"related"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.unpaved-road","Wikidata: Q137959094 (https://www.wikidata.org/wiki/Q137959094)"]},"properties":{"applicability":"required","items":["share of world road length: large, especially in low-income countries note - estimates vary","maintenance: grading, reshaping, dust suppression list","registry parent: unimproved road note"]},"recognition":{"applicability":"required","items":["Road without a sealed surface","Gravel roads, earth roads, laterite roads, forest roads","Paved roads have asphalt or concrete; tracks and trails are narrower; unimproved roads lack engineering","Earth, gravel or crushed stone roadways, often dusty or muddy."]},"capabilities":{"applicability":"required","items":["explain types and construction","relay maintenance and safety","describe uses","distinguish related roads"]},"hazards":{"applicability":"required","items":["Loss of control and dust visibility","Impassability in wet seasons","Erosion and sediment runoff"]},"interfaces":{"applicability":"required","items":["Low-volume road design guidelines","Dust and erosion regulations"]},"context":{"applicability":"required","items":["Low-cost road access.","gravel roads","earth roads","laterite roads","forest and logging roads","farm access roads","gravel cycling routes"]}},"sources":[{"title":"Wikidata item Q137959094: unpaved road","url":"https://www.wikidata.org/wiki/Q137959094","note":"identity and sense of the item"},{"title":"Wikipedia: Unpaved road","url":"https://en.wikipedia.org/wiki/Unpaved_road","note":"general description of the item"}],"openQuestions":["Should gravel road be a separate primary entry?","How should road engineering sources be linked?","How should classification differences be recorded?"],"resources":{"spec":"/models/things/publications/thing-q137959094/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q137959094/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T19:07:12Z","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 2026-10-06T19:51:54+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}