{"id":"traffic-signal","version":"0.4.0","classification":{"uniformat":"G4090"},"names":["Traffic signal"],"aliases":["traffic light","signalized intersection","stop lights"],"service_life":{"median_years":25.1,"range_years":[10,60],"range_basis":"source_spread"},"pm_tasks":[{"task":"Test inductive loop detectors at the cabinet: inductance, resistance, insulation (megger)","frequency":"P1Y","reference":"Guidelines for Transportation Management Systems Maintenance Concept and Plans (FHWA-OP-04-011), Appendix B","url":"https://ops.fhwa.dot.gov/docs/tmsmaintcptandplans/appendix-b.htm","checklist":"Loop Preventive Maintenance - Annually (at the cabinet level)"}],"basis":[{"type":"public_document","life_type":"accounting","title":"Amherstburg: Tangible Capital Assets Policy, Appendix A: TCA Categories, Life Years, and Thresholds","url":"https://media-001-ca.cdn.govstack.com/amherstburg-006-ca/media/vjvhyh1g/2026-08-10-tangible-capital-assets-policy-rm.pdf","page":7,"label":"Infrastructure - Transportation - Traffic Lights","years":20,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Barrie: City of Barrie Corporate Asset Management Plan: Proposed Levels of Service","url":"https://www.barrie.ca/Corporate-Asset-Management-Plan.pdf","page":76,"label":"Traffic Signals","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":"accounting","title":"Greater Madawaska: By-Law 21-2025 Tangible Capital Asset Policy (Finance Policy 4-02)","url":"https://greatermadawaska.civicweb.net/document/95484","page":17,"label":"Traffic Signals","years":40,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Grey Highlands: By-law No. 2026-052, Tangible Capital Asset Policy A09-F-03","url":"https://greyhighlands.civicweb.net/document/406218/","page":10,"label":"Traffic Signals","years":25,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Kenora: AF-6-1 Tangible Capital Asset Policy (By-law 34-2026)","url":"https://listview.kenora.ca/Files/City%20Policy%20Manual/Administration%20and%20Finance/AF-6-1%20Tangible%20Capital%20Asset.pdf","page":16,"label":"Miscellaneous - Traffic Signals","years":20,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Kingston: Tangible Capital Assets Policy","url":"https://cityofkingston.ca/media/pljd1bhs/finance_policy_tangible-capital-asset-policy.pdf","page":15,"label":"Roads and Related - Traffic signals","years":40,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"London: 2023 Corporate Asset Management Plan","url":"https://london.ca/sites/default/files/2023-10/Corporate%20Asset%20Management%20Plan%202023.pdf","page":159,"label":"Signals","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":"accounting","title":"Meaford: By-law 2020-83, Tangible Capital Asset Policy, Appendix A Estimated Useful Lives","url":"https://meaford.civicweb.net/document/103944/","page":20,"label":"Linear - Traffic Signals","years":25,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Orillia: 4.1.8.1 Tangible Capital Assets Policy Manual","url":"https://orillia.civicweb.net/document/366955/","page":22,"label":"Roads: Traffic Lights","years":30,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Quinte West: A09-POLICY-0034 Tangible Capital Asset Policy","url":"https://quintewest.ca/wp-content/uploads/2024/05/A09-POLICY-0034_-_Tangible_Capital_Asset_Policy.pdf","page":37,"label":"Traffic Signals","years":40,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"The Blue Mountains: POL.COR.19.04 Tangible Capital Assets Policy","url":"https://www.thebluemountains.ca/sites/default/files/2022-01/POL-COR-19-04-Tangible-Capital-Assets-Policy.pdf","page":12,"label":"Linear - Traffic Signals","years":25,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Trent Lakes: 5.17 Capital Asset Policy","url":"https://www.trentlakes.ca/media/fjaduus0/517_capital-asset-policy.pdf","page":9,"label":"Traffic control equipment (Stop lights)","years":10,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Welland: FIN-001-0012 Tangible Capital Assets Policy","url":"https://media-003-ca.cdn.govstack.com/welland-ca/media/up1n0par/tangible-capital-assets.pdf","page":9,"label":"Traffic Signals","years":20,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"planning","title":"Bruce: Asset Management Plan 2025, Bruce County","url":"https://www.brucecounty.on.ca/sites/default/files/BruceCounty_2025AMP_FINAL.pdf","page":44,"label":"Road Network - Traffic Signals (weighted avg EUL)","years":14.5,"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":"Traffic Signals - Signalized intersections","years":25,"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":"Kirkland Lake: Asset Management Plan 2025 Town of Kirkland Lake","url":"https://kirklandlake.civicweb.net/document/32531/","page":49,"label":"Traffic Signals","years":25.1,"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":"Lanark: Asset Management Plan 2022","url":"https://www.lanarkcounty.ca/wp-content/uploads/2025/06/2022-Asset-Management-Plan.pdf","page":133,"label":"Traffic light assets","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 - Traffic Signals","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":307,"label":"Traffic Signals","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":"Peterborough: Asset Management Plan 2025 - Peterborough County","url":"https://media-002-ca.cdn.govstack.com/thekawarthas-012-ca/media/juqptohr/asset-management-plan-2025.pdf","page":44,"label":"Traffic Signals","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":"Prescott and Russell: The United Counties of Prescott and Russell's 2025 Asset Management Plan","url":"https://en.prescott-russell.on.ca/UserFiles/Servers/Server_2375121/File/Finances/UCPR_2025_Asset_Management_Plan_Accessible.pdf","page":57,"label":"Traffic signals","years":60,"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":"Sault Ste. Marie: Roadway Appurtenance Asset Management Plan, City of Sault Ste. Marie","url":"https://saultstemarie.ca/wp-content/uploads/2025/07/RPT-City-of-Sault-Ste-Marie-Asset-Management-Plan-Roadway-Appurtenances_Final_June-2025.pdf","page":15,"label":"Traffic Signals","years":27,"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":"Thunder Bay: Future-Ready Roadmap: Asset Management Plan Phase Three","url":"https://www.thunderbay.ca/media/wuwp4vvv/asset-management-plan-phase-three_web.pdf","page":51,"label":"Traffic Signals","years":25,"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":"Wellington: County of Wellington 2025 Asset Management Plan","url":"https://www.wellington.ca/media/file/2025-asset-management-planpdf","page":118,"label":"Traffic Signals","years":35,"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":"Cornwall: 2025 Asset Management Plan City of Cornwall","url":"https://media-003-ca.cdn.govstack.com/cornwall-ca/media/zf1flyyr/2025-asset-management-plan.pdf","page":252,"label":"Traffic Signals","years":27.6,"note":"Asset management plan (planning life). Compared with an image of 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.","Written for freeway traffic management devices; the row used here is its inductive loop detector test, a part of actuated traffic signals."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-22","canonical_url":"https://unfinished.one/c/traffic-signal","versioned_url":"https://unfinished.one/c/traffic-signal/v/0.4.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Traffic signal, v0.4.0. https://unfinished.one/c/traffic-signal/v/0.4.0"}