Neighbourhood noise map
Alto da Alegria, São Luís
Sossego Index 82 out of 100: Calm. Ranked 60 of the 323 neighbourhoods rated in São Luís. That is above the city average of 70.
Low noise most of the day. You can sleep with the window open.
Inside the neighbourhood the index runs from 74 to 91. Noise is similar across the whole area.
The road with the biggest weight in the noise is Avenida Principal (collector road), 158 m from the centre of the neighbourhood.
The nearest airport is Aeroporto Internacional Marechal Cunha Machado (international), 6.7 km away. Close enough to weigh on the index.
There is a railway line 704 m away. Nearby local sources: Transnordestina (704 m), Estrada de Ferro Carajás (1.3 km).
What makes up the index
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Test an address in Alto da AlegriaNeighbouring areas
The closest neighbourhoods and their scores.
- Povoado de Pereira949 m away72
- Alto Bonito1 km away75
- Vila Jacu1.6 km away63
- Sitinho1.7 km away61
- Vila 21 de Abril1.8 km away78
- Pedreira2.2 km away86
How to read this index
The Sossego Index runs from 0 to 100 and is an estimate built from open data, not an on-site measurement. 100 means 48 dB(A) or less, the level of a calm residential area. 0 means 86 dB(A) or more, the level of a heavy traffic avenue. Each neighbourhood's value is the median of nine points around its centre.
Read the full methodologyOpenStreetMap data, computed on October 19, 2026.