{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.motive-power-depot","code":"thing-q10283556","url":"https://ver.cy/models/thing/q10283556/","name":"motive power depot","alternateNames":["traction maintenance depot","tram depot","stabling point","wagon depot"],"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.BLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A motive power depot is a railway building, of any architectural form, used to house, wash and service locomotives, with facilities suited to its maintenance role and era; engine sheds and roundhouses can serve this function, while wagon facilities, tram depots and open stabling points do not qualify solely because they accommodate rail vehicles.","purpose":"Let an agent explain motive power depots and their functions and facilities, describe their role in railway operations, identify notable and heritage depots with sources, and support railway engineering and history questions.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Maintenance function","Stabling","Operational base","Historical forms such as roundhouses"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What depots are.","layers":[{"id":"functions","name":"Functions","description":"Functions and facilities.","findings":[{"id":"functions-finding","name":"Functions","description":"Functions.","questions":[{"text":"What do motive power depots do, and what facilities such as sheds, pits, fuelling and workshops do they contain?","kind":"definition"},{"text":"Which entry fits a specific depot?","kind":"action"}]}]},{"id":"types","name":"Types","description":"Types.","findings":[{"id":"types-finding","name":"Types","description":"Types.","questions":[{"text":"How do locomotive depots, traction maintenance depots, tram depots, wagon depots and stabling points differ?","kind":"definition"},{"text":"Which entry fits a specific type?","kind":"action"}]}]}]},{"id":"operate","name":"Operate","description":"Operations.","layers":[{"id":"role","name":"Role","description":"Role in operations.","findings":[{"id":"role-finding","name":"Role","description":"Role.","questions":[{"text":"How do depots support daily railway operations and fleet maintenance schedules?","kind":"provenance"},{"text":"Which entry fits railway operations?","kind":"action"}]}]},{"id":"safety","name":"Safety","description":"Safety and environment.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"What safety and environmental rules apply to depot work?","kind":"provenance"},{"text":"Is a workplace emergency present now?","kind":"boundary"}]}]}]},{"id":"heritage","name":"Heritage","description":"Notable and heritage depots.","layers":[{"id":"notable","name":"Notable","description":"Notable depots.","findings":[{"id":"notable-finding","name":"Notable","description":"Notable.","questions":[{"text":"Which depots and roundhouses are notable or preserved, and where are they?","kind":"provenance"},{"text":"Which entry fits a specific heritage depot?","kind":"action"}]}]},{"id":"visit","name":"Visit","description":"Visiting.","findings":[{"id":"visit-finding","name":"Visit","description":"Visiting.","questions":[{"text":"Which depots can be visited as museums or on open days?","kind":"provenance"},{"text":"Is the information current?","kind":"boundary"}]}]}]},{"id":"learn","name":"Learn","description":"History and teaching.","layers":[{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did depots develop from steam engine sheds and roundhouses to modern traction maintenance depots?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"teach","name":"Teach","description":"Teaching.","findings":[{"id":"teach-finding","name":"Teach","description":"Teaching.","questions":[{"text":"How can railway maintenance be taught?","kind":"action"},{"text":"Which misconceptions arise?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Track stabling positions and maintenance status of vehicles in a depot it is authorized to manage.","Report faults found in inspection to the maintenance controller.","Schedule cleaning, fuelling and charging within the depot's procedures."],"mustNot":["Move or release a vehicle while people are working on, under or between vehicles.","Release a vehicle into service with an open safety-critical defect.","Override signal protection, blue-flag or isolation procedures in the depot.","Discharge fuel, oil or washing water into drains contrary to permits."],"requiresHuman":["Returning a vehicle to service after a safety-related repair.","Lifting the isolation of a track or overhead line in the depot."]},"ethics":{"considerations":["Depot staff work among heavy moving vehicles and live power; one mistake can kill.","Depots affect neighbours through noise, fumes and night work."],"affectedParties":["Depot workers","Passengers","Neighbours"]},"owners":{"steward":"The railway operator, maintenance contractor or heritage custodian responsible for the locomotive depot.","roles":[],"masterSystems":["Rolling stock and vehicle registers of rail safety authorities provide associated vehicle records."]},"relations":[{"target":"Q113493738","type":"parent","note":"registry parent class"},{"target":"Q11936122","type":"parent","note":"registry parent class"},{"target":"Q39917125","type":"parent","note":"registry parent class"},{"target":"Q800279","type":"parent","note":"registry parent class"},{"target":"railway building","type":"related","note":"category"},{"target":"maintenance facility","type":"related","note":"category"},{"target":"railway junction","type":"related","note":"another railway infrastructure entry"},{"target":"transport structure","type":"related","note":"the wider category"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.motive-power-depot","Wikidata: Q10283556 (https://www.wikidata.org/wiki/Q10283556)"]},"properties":{"applicability":"required","items":["Site area:  m2 - Measure the area within the defined depot boundary using a site survey or verified plans.","Usable track length:  m - Measure the usable length of each depot track between its operational limits and state whether the value is individual or summed.","Shed entrance clearance:  m - Measure the minimum unobstructed entrance width and height relative to the track and rail level.","Inspection pit depth:  m - Where an inspection pit exists, measure its vertical depth from rail level to the pit floor."]},"recognition":{"applicability":"required","items":["The building accommodates locomotives for housing, washing and servicing.","Associated facilities may include inspection pits, fuelling equipment, washing equipment and workshops.","A railway works primarily builds or overhauls vehicles, a station serves passengers, and a yard sorts wagons, so these functions alone do not identify a motive power depot.","Sheds, sidings, pits and workshops with rolling stock."]},"capabilities":{"applicability":"required","items":["explain functions and facilities","describe operational role","identify notable depots","support history questions"]},"hazards":{"applicability":"required","items":["Workplace accidents in depots","Maintenance failures affecting services","Confusing depots with works or yards"]},"interfaces":{"applicability":"required","items":["Railway safety and maintenance regulations","Environmental rules for fuelling and washing","Heritage protection for historic depots"]},"context":{"applicability":"required","items":["Railway facilities for stabling and maintaining rolling stock.","locomotive depots and engine sheds","traction maintenance depots for multiple units","tram depots","wagon depots","stabling points and heritage depots"]}},"sources":[{"title":"Wikidata item Q10283556: motive power depot","url":"https://www.wikidata.org/wiki/Q10283556","note":"identity and sense of the item"},{"title":"Wikipedia: Motive power depot","url":"https://en.wikipedia.org/wiki/Motive_power_depot","note":"general description of the item"}],"openQuestions":["Should each notable depot be a separate entry?","How should railway operator data be linked?","How should heritage registers be linked?"],"resources":{"spec":"/models/things/publications/thing-q10283556/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q10283556/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T03:55:22Z","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 2026-10-07T12:16:28+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}