Neighbourhood noise map
Santa Marta, Viamão
Sossego Index 100 out of 100: Very calm. Ranked 43 of the 200 neighbourhoods rated in Viamão. That is above the city average of 86.
Very low noise. The quiet of a far residential area or a green space.
Inside the neighbourhood the index runs from 91 to 100. Noise is similar across the whole area.
The roads that weigh most on the noise of the neighbourhood are Rua Santa Marta (residential street, 42 m), Rodovia Tapir Rocha (arterial road, 793 m) and Avenida 31 de Março (main local road, 505 m).
The nearest airport is Águas Claras (small), 2.2 km away. Far enough to barely count.
Day and night
By day the estimate is 46 dB(A), index 100. At night, with less traffic, it drops to 38 dB(A), index 100. It is within the NBR 10151 references for residential areas (55 dB(A) by day and 50 at night).
What makes up the index
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The closest neighbourhoods and their scores.
- Vila Fraga753 m away100
- Pomar do Morro1.3 km away89
- Goufe III1.4 km away100
- Haras1.5 km away100
- Maria Hortência1.5 km away88
- Querência da Figueira1.7 km away99
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.