{"id":"guardrail","version":"0.1.0","classification":{"uniformat":"G2010"},"names":["Guardrail"],"aliases":["guide rail","roadside barrier"],"service_life":{"median_years":30,"range_years":[15,50],"range_basis":"source_spread"},"pm_tasks":[],"basis":[{"type":"public_document","life_type":"planning","title":"Brantford: 2025 Asset Management Plan: Transportation, City of Brantford, Ontario","url":"https://media-004-ca.cdn.govstack.com/brantford-ca/media/fhon3a4l/transportation_2025_amp.pdf","page":13,"label":"Guide Rails - 3 Cable on Wood Posts","years":15,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Brantford: 2025 Asset Management Plan: Transportation, City of Brantford, Ontario","url":"https://media-004-ca.cdn.govstack.com/brantford-ca/media/fhon3a4l/transportation_2025_amp.pdf","page":13,"label":"Guide Rails - Steel Beam Guide Rail","years":20,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Chatham-Kent: Detailed Asset Management Plan: Roads 2025","url":"https://www.chatham-kent.ca/localgovernment/budget/Documents/DAMP%20Reports/2024/DAMP%20-%20Roads.pdf","page":10,"label":"Guide Rails","years":40,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Kingston: City of Kingston 2024 Asset Management Plan, Volume 1: Infrastructure, Transportation, Transit, & Emergency Services","url":"https://getinvolved.cityofkingston.ca/46640/widgets/197062/documents/145814/download","page":44,"label":"Guide Rails - Guide Rail","years":30,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Norfolk County: 2025 Asset Management Plan","url":"https://www.norfolkcounty.ca/media/bgrja3po/attachment-1-2025-amp-final.pdf","page":49,"label":"Roads - Guiderails","years":50,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Oxford: Oxford County Asset Management Plan 2025","url":"https://webresources.oxfordcounty.ca/documents/Oxford%20County%20Asset%20Management%20Plan-6-25.pdf","page":307,"label":"Guide Rails","years":30,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Oxford: Oxford County Asset Management Plan 2025","url":"https://webresources.oxfordcounty.ca/documents/Oxford%20County%20Asset%20Management%20Plan-6-25.pdf","page":292,"label":"Guide Rails (bridges and structural culverts)","years":30,"note":"Asset management plan (planning life). Approved on text check: the label and value were found on the cited page."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["These are Ontario accounting lives from municipal capital asset policies, not planning or observed replacement data.","No preventive maintenance tasks are sourced yet."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-22","canonical_url":"https://unfinished.one/c/guardrail","versioned_url":"https://unfinished.one/c/guardrail/v/0.1.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Guardrail, v0.1.0. https://unfinished.one/c/guardrail/v/0.1.0"}