Neighbourhood noise map
São Sebastião, Santa Maria
Sossego Index 66 out of 100: Active. Ranked 321 of the 396 neighbourhoods rated in Santa Maria. That is below the city average of 80.
Moderate, steady noise, typical of mixed neighborhoods with shops and busy streets.
Inside the neighbourhood the index runs from 49 to 72. Noise is similar across the whole area.
The roads that weigh most on the noise of the neighbourhood are RSC-287 (expressway, 706 m) and Ponte Seca (expressway, 1.2 km).
The nearest airport is Aeroporto de Santa Maria (international), 1.3 km away. Close enough to weigh on the index.
There is a railway line 419 m away. Nearby local sources: railway (419 m).
Day and night
By day the estimate is 61 dB(A), index 66. At night, with less traffic, it drops to 56 dB(A), index 79. It is above the NBR 10151 reference for residential areas (55 dB(A) by day and 50 at night) in both periods.
What makes up the index
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The closest neighbourhoods and their scores.
- Vila Fighera1.8 km away77
- Faxinal da Palma2.9 km away72
- Vila Tonetto3.7 km away42
- Loteamento Martins da Silva4.3 km away44
- Passo do Cachorro4.4 km away100
- Vila Santa Helena4.5 km away48
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 21, 2026.