Neighbourhood noise map
Cascatinha, Petrópolis
Sossego Index 77 out of 100: Calm. Ranked 23 of the 26 neighbourhoods rated in Petrópolis. That is below the city average of 90.
Low noise most of the day. You can sleep with the window open.
Inside the neighbourhood the index runs from 50 to 100. 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 Hivio Maliato (main local road, 39 m), Estrada União e Indústria (arterial road, 230 m) and Estrada José Carneiro Dias (main local road, 50 m). Traffic is the main source of noise.
The nearest airport is Aeródromo Fazenda Santa Tereza (small), 15.6 km away. Far enough to barely count.
Day and night
By day the estimate is 57 dB(A), index 77. At night, with less traffic, it drops to 49 dB(A), index 98. 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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The closest neighbourhoods and their scores.
- Itamarati2.3 km away100
- Quissamã2.6 km away94
- Glória2.6 km away100
- Retiro3.2 km away100
- Floresta3.3 km away100
- Corrêas3.4 km away71
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.