Transparency in public transport
About BuzuRadar
An independent project to transform public records of Rio's mobility into maps, historical series and explanations that anyone can verify.
Mission
Evidence over spectacle
BuzuRadar exists to make transport operations more readable. The objective is not to turn every fluctuation into a complaint, but to separate what was observed, what is incomplete and what requires confirmation from other sources.
Maps and indicators are presented with period, origin and limitations. When a conclusion depends on a hypothesis, this must be made explicit. When information changes, the update date matters as much as the published number.
The project
Five surfaces, one responsibility
Live map
Most recent bus and BRT positions, indicating the age of the data and the transmission status.
Open mapRoute directory
Routes, stops and static information to consult each service at a permanent address.
View routesAudit
History, coverage, observed supply and comparisons built on the records preserved by the website.
Open auditData bulletins
Automatic weekly summaries published only when minimum quality criteria are met.
View bulletinsBlog
Editorial explainers and analyzes based on documents, public data and contextual research.
Read articlesEditorial principles
How BuzuRadar publishes
Describe before concluding
Absence of GPS is not automatically treated as absence of a bus. The text first informs the available signal and its quality.
Separate steps
Announcement, consultation, notice, contract, work, testing and operation are different stages. Tracking preserves these distinctions.
Show sources
Articles have links and date of consultation. Specific indicators refer to the methodology and limits used in the calculation.
Fix in a traceable way
Documented errors are fixed, and time-sensitive content displays when it was updated.
Do not fill gaps with invention
When the source does not allow an answer, BuzuRadar reports uncertainty instead of manufacturing precision.
Sources
Where does the information come from
The operational positions come from public sources made available by SMTR through BuzuRadar infrastructure. Routes, stops and planning use static data and official documents, including GTFS and operational plans.
Articles can also be used on public portals, academic research and civil society organizations. The provenance of each relevant statement is indicated in the content itself.
Limits
What Data Alone Doesn’t Prove
Records do not automatically measure capacity, demand, individual experience, revenue or regulatory timeliness. A missing position may result from a communication failure, and an observed vehicle does not guarantee that the entire trip was completed.
BuzuRadar metrics do not constitute an official assessment. Complaints and requests for inspection must go through the competent channels.
Publication
Manual and automatic content remain separate
Blog articles are manually researched and edited. Weekly bulletins use deterministic rules and prewritten templates. An edition is only published when coverage, freshness, and the number of routes meet the defined thresholds.
The intended editorial cadence combines automated weekly bulletins with two manually edited articles per month: one evergreen article and one analysis linked to a recent change, investigation, or data series.
Responsibility
Who maintains
BuzuRadar is maintained independently by Raphael Medeiros. The project assumes responsibility for the maps, calculations, texts, editorial criteria and presentation published in this domain; the source data belongs to the respective bodies and providers.