ANTT Pedagio¶
About the source¶
The ANTT (National Land Transport Agency — Agencia Nacional de Transportes Terrestres) publishes open data on vehicle traffic at highway toll plazas on the dados.antt.gov.br portal.
The data is a proxy for crop outflow: heavy commercial vehicles (3+ axles) correlate strongly with the transport of grains by road.
Datasets¶
Traffic Volume (primary)¶
- Coverage: 2010-2025 (16 annual CSVs)
- Granularity: Monthly, by plaza/concessionaire/vehicle category
- Format: CSV separated by
; - Schema V1 (2010-2023): With header, category as text ("Categoria 1"-"Categoria 9")
- Schema V2 (2024+): No header, axles as a number (2-18)
Toll Plaza Registry (reference)¶
- Format: Single CSV (~200+ active plazas)
- Columns: concessionaire, plaza, highway, state, km, municipality, latitude/longitude, status
- Use: Automatic join with traffic data to enrich with state/highway/municipality
License¶
CC-BY (Creative Commons Attribution). Open data with no authentication required.
Category Mapping¶
| Category V1 | Axles | Type |
|---|---|---|
| 1 | 2 | Passeio |
| 2 | 2 | Comercial |
| 3 | 3 | Passeio |
| 4 | 3 | Comercial |
| 5 | 4 | Passeio |
| 6 | 4 | Comercial |
| 7 | 5 | Comercial |
| 8 | 6 | Comercial |
| 9 | 2 | Moto |
Technical notes¶
apenas_pesados=Truefiltersn_eixos >= 3 AND tipo_veiculo == "Comercial"- Volume is aggregated by plaza/month/axle (automatic/manual collection type is summed)
- Default with no year filter = current year + previous (avoids downloading 16 CSVs)
- Encoding: Windows-1252 with automatic fallback chain