Tehran Traffic Zone automated congestion charging
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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Since 1980 a permit-only Traffic Zone has ringed central Tehran; the Tehran Traffic Control Company automated enforcement with roughly 103 ANPR cameras from 2010 and, in March 2018, replaced flat paper permits with per-day charges that vary by entry time and duration, billed through the municipality's 'Tehran Man' online accounts — today the only way to buy a permit. In June 2019 the surrounding odd-even ring was converted into a second camera-charged Air Pollution Control zone, with each car allowed 20 free entry days per season. The two-ring, camera-billed scheme still runs in 2026, Saturday to Wednesday from 6:30 to 19:00.
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 →📊 Impact
Around 103 ANPR cameras detect over 80% of illegal zone entries out of roughly 5 million monthly border crossings (about 1.1 million formerly illegal), per operator figures.
🎓 Lesson
A blunt odd-even plate ban was phased out in stages — per-day camera billing for the core zone in 2018, conversion of the odd-even ring itself in 2019 — a shift from binary access rules to graduated demand pricing.
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📎 Cite this project
1001 Smart Cities (2026). “Tehran Traffic Zone automated congestion charging” — Tehran, Iran. The Smart City Atlas. https://1001smartcities.org/projects/tehran-traffic-zone/ (last verified 2026-08-07). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.