Goiânia

Goiânia's open-data portal is the cleanest and the stalest in the atlas at the same time. It carries 29 datasets, every one published by the municipality and every one under the same Creative Commons attribution licence — a uniformity most municipal catalogues never manage — with holdings that are mostly cadastral geography: streets, blocks, lots, kerbs, cadastral sectors, bridges, listed heritage and altimetry, each offered in four formats with a data dictionary. Sorted by the portal's own last-modified date, the newest change to anything in the catalogue is a dengue-control file updated in April 2020; the street register was last touched in September 2018. A licence governs reuse, not maintenance, and a licence audit cannot see the difference.

The fare system is where the city put biometrics, and the design is more careful than the headline suggests. The metropolitan bus network switched to a new electronic ticketing platform in January 2021, keeping the roughly 1.6 million cards already in circulation working, and started facial checks with elderly free-travel cardholders: a camera photographs the passenger at boarding, the image is held in the validator and uploaded when the bus reaches the depot, and only then compared with the photo on the cardholder's record, with mismatches sent for human inspection. The check is retrospective rather than a gate, so it deters reuse of somebody else's free-travel card without ever stopping a boarding. Because validators are online, a lost card is blocked at once instead of taking three working days, and the platform is what made a single metropolitan fare with up to four transfers possible from April 2022. The most modern payment channel was the first to go: phone and smartwatch payment, in use since December 2021, was withdrawn in July 2025 citing the risk of virtual cards, with no figures on actual fraud published.

The two most recent entries both publish a scale and hold back the consequence. The traffic secretariat restarted electronic enforcement at the end of March 2025 after nine months in which no radar in the capital was working, and from a new control centre issues automatic notices for phone use at the wheel, red-light running and seat-belt offences while passing the images in real time to four police forces for stolen-vehicle and warrant checks — 4,746 infractions in the first seven days, and no published privacy policy for the cameras. Upstream, the state environment secretariat publishes the Rio Meia Ponte's condition on a six-step scale keyed to measured flow, updated daily from ten monitoring stations, with a rationing plan approved by the regulator sitting behind it — neighbourhood rotation groups and a list of essential users to be spared. In 2026, after more than thirty days without rain, the river reached the second step. The rotation has never been switched on.