Uniformat G4090
Traffic signal
Also called traffic light, signalized intersection, stop lights
Service life
Years in service. The band runs from the shortest to the longest life the sources state, so it shows how much they disagree, not how long 80% of units last. The line is the median of the stated lives.
Basis
- 20 years · Amherstburg: Tangible Capital Assets Policy, Appendix A: TCA Categories, Life Years, and Thresholds, p7 · “Infrastructure - Transportation - Traffic Lights” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 40 years · Greater Madawaska: By-Law 21-2025 Tangible Capital Asset Policy (Finance Policy 4-02), p17 · “Traffic Signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 25 years · Grey Highlands: By-law No. 2026-052, Tangible Capital Asset Policy A09-F-03, p10 · “Traffic Signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 20 years · Kenora: AF-6-1 Tangible Capital Asset Policy (By-law 34-2026), p16 · “Miscellaneous - Traffic Signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 40 years · Kingston: Tangible Capital Assets Policy, p15 · “Roads and Related - Traffic signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 25 years · Meaford: By-law 2020-83, Tangible Capital Asset Policy, Appendix A Estimated Useful Lives, p20 · “Linear - Traffic Signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 30 years · Orillia: 4.1.8.1 Tangible Capital Assets Policy Manual, p22 · “Roads: Traffic Lights” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 40 years · Quinte West: A09-POLICY-0034 Tangible Capital Asset Policy, p37 · “Traffic Signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 25 years · The Blue Mountains: POL.COR.19.04 Tangible Capital Assets Policy, p12 · “Linear - Traffic Signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 10 years · Trent Lakes: 5.17 Capital Asset Policy, p9 · “Traffic control equipment (Stop lights)” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
- 20 years · Welland: FIN-001-0012 Tangible Capital Assets Policy, p9 · “Traffic Signals” (accounting life)Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page.
How sources are chosen and recorded: sourcing policy.
Municipal accounting lives for traffic signals and other site electrical (G4090)
13 municipal policies from Ontario set a life for traffic signals and other site electrical as a whole, from 12 distinct tables: 10–40 years, median 25. These are amortization periods chosen for accounting, not measured lives, and they describe the system rather than this component.
Years. Each dot is one stated life and each bar a stated range; equal values stack. The dashed line is the median. Policies that copy the same table count once.
All 17 stated lives
| Municipality | As written | Years | Source |
|---|---|---|---|
| Orillia | Roads: Traffic Light Components: Opticoms | 10 | p22 |
| Trent Lakes | Traffic control equipment (Stop lights) | 10 | p9 · 2009 |
| Orillia | Roads: Traffic Light Components: Hung Wire, Controllers | 15 | p23 |
| Amherstburg | Infrastructure - Transportation - Traffic Lights | 20 | p7 · 2026 |
| Kenora | Miscellaneous - Traffic Signals | 20 | p16 · 2026 |
| Orillia | Roads: Traffic Light Components: Control Signal, Controller Cabinet | 20 | p23 |
| Welland | Traffic Signals | 20 | p9 · 2021 |
| Grey Highlands | Traffic Signals | 25 | p10 · 2026 |
| Meaford | Linear - Traffic Signals | 25 | p20 · 2020 |
| Orillia | Roads: Traffic Light Components: Stop Flashers, Amber Flashing Beacon | 25 | p23 |
| Sarnia | Signal Lights | 25 | p2 |
| Simcoe | Signals & Beacons | 25 | p21 · 2025 |
| The Blue Mountains | Linear - Traffic Signals | 25 | p12 · 2019 |
| Orillia | Roads: Traffic Lights | 30 | p22 |
| Orillia | Roads: Traffic Light Components: Mast Arms, Poles | 30 | p23 |
| Greater Madawaska, Quinte West · same table | Traffic Signals | 40 | p17, p37 · 2025 |
| Kingston | Roads and Related - Traffic signals | 40 | p15 · 2016 |
Each row was matched to its page automatically: the label and the number appear in the text of the cited page. An editor has not yet compared every row with the table, so follow the page link before relying on one. About the policies · All approved rows as JSON
Preventive maintenance
No maintenance tasks are sourced for this component yet.
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.
Know the answer? Send it with a source to [email protected].
Cite this
Citation
unfinished.one (2026). Traffic signal, v0.1.0. https://unfinished.one/c/traffic-signal/v/0.1.0BibTeX
@misc{unfinished_traffic_signal_0_1_0,
title = {Traffic signal},
author = {{unfinished.one}},
year = {2026},
version = {0.1.0},
url = {https://unfinished.one/c/traffic-signal/v/0.1.0},
note = {CC BY 4.0}
}Licence CC BY 4.0 · How to cite · JSON · Versions: 0.1.0