Neighbourhood noise map
Heliópolis, Belford Roxo
Sossego Index 76 out of 100: Calm. Ranked 31 of the 35 neighbourhoods rated in Belford Roxo. That is below the city average of 83.
Low noise most of the day. You can sleep with the window open.
Inside the neighbourhood the index runs from 53 to 96. 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 Tibagi (main local road, 54 m), Avenida Heliópolis (collector road, 255 m) and Rua Tucumã (residential street, 19 m). Traffic is the main source of noise.
The nearest airport is Aeroclube de Nova Iguaçu (small), 5 km away. Far enough to barely count.
There is a railway line 1.2 km away. Nearby local sources: railway (1.2 km).
Day and night
By day the estimate is 57 dB(A), index 76. At night, with less traffic, it drops to 48 dB(A), index 100. 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
Moving here?
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Test an address in HeliópolisNeighbouring areas
The closest neighbourhoods and their scores.
- Andrade Araújo977 m away78
- Areia Branca1.1 km away83
- São Francisco de Assis1.1 km away93
- Piam1.9 km away81
- Itaipu2 km away77
- Nova Piam2.2 km away81
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.