Smart Street Light Controllers
🤖 AI-generated summary of the sources below · 🔎 Last verified
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.
SCADL added controller units to part of Ahmedabad's LED street lighting so that circuits dim on ambient light and report their state to a central dashboard. By the company's own account 14,200 controllers cover about 25,000 street lights — a small fraction of the city's stock — and the point of the system is fault detection: knowing which lights are dark without waiting for a resident to call it in. This is the difference the atlas cares about between a bulb replacement and an information system, and it shows up in exactly one number, the burning ratio.
📊 Impact
SCADL reports the burning ratio — the share of lights actually lit — rising from 86% to 95% 'in the last one year'. The claim sits on an undated page, so the year it refers to is unknown, and there is no independent check.
🎓 Lesson
An LED retrofit is a procurement; a controller that answers back is an information system. You can tell which one a city bought by asking for its burning ratio: the number only exists once the lights can be interrogated.
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📎 Cite this project
1001 Smart Cities (2026). “Smart Street Light Controllers” — Ahmedabad, India. The Smart City Atlas. https://1001smartcities.org/projects/ahmedabad-smart-streetlights/ (last verified 2026-08-06). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.