Setran's Adaptive Traffic Signal Network
This overview was generated with AI from the public sources listed below and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
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Curitiba's buses got live GPS tracking in 2012. Its traffic lights took longer — the separate traffic authority only reached 92% signal connectivity by 2023, and is still adding AI-camera timing street by street.
what does this mean?
The strongest source is the operator's or the city's own reporting — an official report, dataset or press release. It grades who did the looking — not how well the project went. All four grades →Part of 1001 Smart Cities — 1,167 documented projects · 🏙️ 11 more in Curitiba · 🚦 Traffic management guide · 🚲 Mobility projects
Since 2019, Setran — Curitiba's traffic authority, distinct from URBS's bus operations — has expanded how many of the city's 1,200-plus signalized intersections tie into the shared Operations Control Center for remote retiming and 15-minute fault repair, reaching 92% by 2023. From 2025 it layered camera-and-sensor systems the city calls AI-adaptive signal timing onto specific intersections, reaching 44-plus streets by February 2026.
🎓 Lesson
The city's often-cited 46.5% drop in traffic fatalities is credited to a bundle of measures — speed bumps, signage, enforcement — not to the signal network alone; no independent study isolates what the connectivity upgrade or the newer AI-camera overlay specifically achieved.
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📎 Cite this project
1001 Smart Cities (2026). “Setran's Adaptive Traffic Signal Network” — Curitiba, Brazil. The Smart City Atlas. https://1001smartcities.org/projects/curitiba-adaptive-traffic-signals/ (last verified 2026-08-05). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.