Mapa Sossego

Neighbourhood noise map

Santa Maria, Belford Roxo

Sossego Index 83 out of 100: Calm. Ranked 18 of the 35 neighbourhoods rated in Belford Roxo. That matches the city average of 83.

Calm

Low noise most of the day. You can sleep with the window open.

83
Street level estimate: ~55 dB(A)
0 · LoudActiveVery calm · 100

Inside the neighbourhood the index runs from 69 to 97. Noise is similar across the whole area.

The roads that weigh most on the noise of the neighbourhood are Avenida Estrela Branca (main local road, 63 m), Rua Breno de Souza Alves (residential street, 16 m) and Avenida Joaquim da Costa Lima (arterial road, 493 m). Traffic is the main source of noise.

The nearest airport is Aeroclube de Nova Iguaçu (small), 8.5 km away. Far enough to barely count.

Day and night

Day
83~55 dB(A)
Night
100~46 dB(A)

By day the estimate is 55 dB(A), index 83. At night, with less traffic, it drops to 46 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

Traffic
~55 dB(A)
Calm
Airports
~38 dB(A)
Very calm
Local sources
~38 dB(A)
Very calm

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Neighbouring areas

The closest neighbourhoods and their scores.

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 methodology

OpenStreetMap data, computed on October 21, 2026.