Neighbourhood noise map
Dona Mercedes, Gravataí
Sossego Index 53 out of 100: Active. Ranked 144 of the 157 neighbourhoods rated in Gravataí. That is below the city average of 76.
Moderate, steady noise, typical of mixed neighborhoods with shops and busy streets.
Inside the neighbourhood the index runs from 9 to 73. Some corners are much louder than others, usually next to the avenues.
The roads that weigh most on the noise of the neighbourhood are Freeway (motorway, 342 m), Avenida Ely Corrêa (arterial road, 333 m) and Rua Querência (residential street, 43 m). Traffic is the main source of noise.
The nearest airport is an unnamed airfield (small), 4.6 km away. Far enough to barely count.
Nearby local sources: Prometeon (354 m).
Day and night
By day the estimate is 66 dB(A), index 53. At night, with less traffic, it drops to 60 dB(A), index 70. 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.
- Porto Seguro148 m away52
- Santa Rita de Cássia298 m away59
- Sítio do Sobrado444 m away48
- Antonio Gomes Correa535 m away50
- Girassol761 m away67
- Moradas do Sobrado781 m away55
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.