How we source and check the ZTL data

Every zone, timetable and boundary on this site came from somewhere. Here is where, and how we check it.

By ZTL Italia · Methodology last reviewed 12 September 2026

What we track

Each restricted area on the map is one record: its town and region, the type of zone, a timetable where there is one, notes on gates and exemptions, a source, and the boundary drawn on the map. The type of zone decides what the timetable means:

• Limited Traffic Zone (ZTL) — permit holders only while it is active; the timetable is a window you can wait out.
• Pedestrian area — a flat ban with no opening hours.
• Charge zone — open to anyone who pays; the hours say when the charge applies.
• Emissions zone — a ban by the car’s Euro class across a whole built-up area.

Where the data comes from

We rank our sources, and a lower one never overrides a higher one:

1. The ordinance — the Comune’s ordinanza, which is what the camera enforces.
2. The Comune or its mobility agency — official notices, the municipal police, or the operator of the gates.
3. Local reporting — only where the Comune publishes nothing that can be reached.
4. Secondary sources — a starting point for finding a zone, never proof that its timetable is current.

Zone boundaries are derived from published outlines on accessibilitacentristorici.it and OpenStreetMap, drawn over a base map © OpenStreetMap contributors and © CARTO.

How a city page is checked

For each city page, the timetable and the text describing it are compared against the Comune’s own publication or the ordinance itself. In practice that means:

• going to the ordinance rather than a summary page, which can lag by years;
• confirming the date the source describes, not just that it looks current;
• counting the gates, because they do not always share a timetable;
• working out who a published time applies to — often residents or deliveries, not visitors;
• and, where the hours cannot be confirmed, saying so rather than guessing.

Checking matters because secondary sources go out of date quickly, and the errors usually point the way that gets a driver fined. Lecce is a good example: it reversed its ZTL in August 2025, and much of what is published online still describes the old rules.

Coverage and limitations

56 city pages have been checked this way. Smaller towns appear on their region’s page and rely on secondary sources, and zone boundaries are simplified. This is an independent guide, not an official source: timetables are indicative and change by season, day and gate. Before you drive, confirm with the local Comune and read the sign at the gate.

Corrections

If a rule has changed or we have something wrong, tell us through the contact page — ideally with the town, the street or gate, and the ordinance number or a photo of the sign.