Neighbourhood noise map
Castelo Branco, Gravataí
Sossego Index 73 out of 100: Calm. Ranked 87 of the 157 neighbourhoods rated in Gravataí. That is below the city average of 76.
Low noise most of the day. You can sleep with the window open.
Inside the neighbourhood the index runs from 34 to 89. Some corners are much louder than others, usually next to the avenues.
The roads that weigh most on the noise of the neighbourhood are Rua Nazaré (residential street, 20 m), Rua Barbosa Filho (collector road, 331 m) and Avenida Dorival Cândido Luz de Oliveira (arterial road, 598 m). Traffic is the main source of noise.
The nearest airport is an unnamed airfield (small), 4.9 km away. Far enough to barely count.
Day and night
By day the estimate is 58 dB(A), index 73. At night, with less traffic, it drops to 50 dB(A), index 94. It is above the daytime NBR 10151 reference for residential areas (55 dB(A)) but within the night one (50 dB(A)).
What makes up the index
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Test an address in Castelo BrancoNeighbouring areas
The closest neighbourhoods and their scores.
- Vila Aliança327 m away75
- Salgado Filho390 m away72
- Jardim da Figueira467 m away53
- União549 m away73
- Santa Luzia747 m away72
- Santa Cruz884 m away68
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.