{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.observation-deck","code":"thing-q177305","url":"https://ver.cy/models/thing/q177305/","name":"observation deck","alternateNames":["beach raft"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.BLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"An elevated platform or enclosed floor on a tower, skyscraper, hill or natural site, built to give visitors a panoramic view, including skyscraper decks with glass floors, lookout towers and built scenic platforms; observation decks are often tourist attractions, are designed for safety and capacity, and often charge admission.","purpose":"Let an agent explain observation decks and their kinds, identify notable examples, relay design, safety and visitor information, and distinguish observation decks from viewpoints without built facilities.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Height and panorama","Public access","Safety barriers","Attraction economics"],"structure":{"bundles":[{"id":"identify","name":"Identify","description":"What an observation deck is.","layers":[{"id":"definition","name":"Definition","description":"Definition and kinds.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is an observation deck, and what kinds exist?","kind":"definition"},{"text":"Is the site a built deck, a natural viewpoint or a private balcony?","kind":"boundary"}]}]},{"id":"examples","name":"Examples","description":"Notable decks.","findings":[{"id":"examples-finding","name":"Examples","description":"Examples.","questions":[{"text":"What are the notable and highest observation decks, with sources?","kind":"provenance"},{"text":"Which entry fits the specific deck?","kind":"action"}]}]}]},{"id":"design","name":"Design","description":"Design and safety.","layers":[{"id":"design","name":"Design","description":"Design.","findings":[{"id":"design-finding","name":"Design","description":"Design.","questions":[{"text":"How are decks designed for views, wind, glazing and crowds?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"safety","name":"Safety","description":"Safety.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"What safety rules and incident lessons apply to observation decks and skywalks?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"visit","name":"Visit","description":"Visiting.","layers":[{"id":"information","name":"Information","description":"Visitor information.","findings":[{"id":"information-finding","name":"Information","description":"Information.","questions":[{"text":"Where are opening hours and admission for a given deck published?","kind":"provenance"},{"text":"Is the information current?","kind":"boundary"}]}]},{"id":"economics","name":"Economics","description":"Attraction economics.","findings":[{"id":"economics-finding","name":"Economics","description":"Economics.","questions":[{"text":"How do observation decks contribute to tower economics and tourism, with sources?","kind":"provenance"},{"text":"Which entry fits tourist attraction?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"History and variants.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did observation decks develop from the Eiffel Tower and early skyscrapers?","kind":"provenance"},{"text":"Which entry fits the history of skyscrapers?","kind":"action"}]}]},{"id":"variants","name":"Variants","description":"Variants.","findings":[{"id":"variants-finding","name":"Variants","description":"Variants.","questions":[{"text":"What are skywalks, observation wheels and floating platforms?","kind":"provenance"},{"text":"Which entry fits the specific variant?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Report opening hours, ticketing and accessibility from the deck operator.","Describe the view and orientation features for visitors, including for low vision users."],"mustNot":["Admit visitors beyond the deck's safe capacity or weather limits.","Encourage climbing on barriers, glass floors or edges, or sitting on parapets.","Remove or defeat safety barriers and anti-climb measures.","Film or identify visitors beyond lawful security purposes."],"requiresHuman":["Closing a deck for wind, ice or structural concern.","Any decision about a person in distress at height."]},"ethics":{"considerations":["High open platforms attract people in crisis, and barriers save lives.","Crowded decks at height can panic and crush."],"affectedParties":["Visitors, including children","People in suicidal crisis","Staff and rescuers"]},"owners":{"steward":"The operator of the tower, building or site.","roles":[],"masterSystems":[]},"relations":[{"target":"Q13226383","type":"parent","note":"registry parent class"},{"target":"Q6017969","type":"parent","note":"registry parent class"},{"target":"Q811979","type":"parent","note":"registry parent class"},{"target":"scenic viewpoint","type":"related","note":"in registry terms"},{"target":"built structure","type":"related","note":"in registry terms"},{"target":"facility","type":"related","note":"in registry terms"},{"target":"skyscraper","type":"related","note":"and towers"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.observation-deck","Wikidata: Q177305 (https://www.wikidata.org/wiki/Q177305)"]},"properties":{"applicability":"required","items":["highest observation deck: about 550-560 m - Shanghai Tower and comparable decks"]},"recognition":{"applicability":"required","items":["An observation deck is a built elevated platform for panoramic views.","Examples include skyscraper decks, lookout towers and elevated scenic platforms.","A natural viewpoint need not have a built deck, and an ordinary beach raft is not an elevated sightseeing platform.","A railed or glazed platform high above the ground with views in several directions."]},"capabilities":{"applicability":"required","items":["explain kinds and features","identify notable examples","relay design and safety","route visitor information"]},"hazards":{"applicability":"required","items":["Falls and barrier failures","Overcrowding and evacuation problems","Weather closures","Stale admission information"]},"interfaces":{"applicability":"required","items":["Building codes for barriers and glazing","Crowd capacity and evacuation rules","Accessibility requirements"]},"context":{"applicability":"required","items":["Viewing landscapes and cityscapes from height.","skyscraper observation decks","observation towers and lookout towers","scenic platforms on cliffs and mountains, including skywalks","observation wheels as related attractions","floating platforms and beach rafts","observation cars and decks on trains and ships"]}},"sources":[{"title":"Wikidata item Q177305: observation deck","url":"https://www.wikidata.org/wiki/Q177305","note":"identity and sense of the item"},{"title":"Wikipedia: Observation deck","url":"https://en.wikipedia.org/wiki/Observation_deck","note":"general description of the item"}],"openQuestions":["Should observation tower be a separate entry?","How should attraction databases be linked?","The registry entry has a merged alias naming a beach raft; should it be split off?"],"resources":{"spec":"/models/things/publications/thing-q177305/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q177305/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T01:10:31Z","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 2026-10-07T10:10:26+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}