Hi suchAnight,

Thank you for bringing up this important point regarding the classification of tertiary roads in Brazil.

I agree that many of the roads classified as tertiary, particularly in rural areas, might not meet the criteria for federal roads as outlined in the Brazilian community guidelines. Roads that end as private driveways or primarily serve individual residences should indeed be classified as highway=residential or highway=service, as this would better reflect their actual use.

As per the community guidelines, federal roads in Brazil are usually identified by a ref tag that includes "BR" followed by a numerical value, as you correctly mentioned. If the road in question does not meet these criteria and serves more as a residential or service road, it would make sense to downgrade its classification to avoid confusion.

Currently, we are conducting detailed mapping using data from private trackers, which gives us more precise insights into road usage and classification. We are actively working on improving this process and refining how we classify these roads, especially in rural areas where the distinctions between road types can be challenging.

We will review the changeset you highlighted and adjust the classification of roads where necessary to ensure they align with the community guidelines and accurately reflect their intended use.

Thank you again for your valuable input and for helping us keep OpenStreetMap as accurate as possible!

Have a great day!