Neighbourhood noise map
Alto Alegre II, Maracanaú
Sossego Index 69 out of 100: Active. Ranked 35 of the 46 neighbourhoods rated in Maracanaú. That is below the city average of 82.
Moderate, steady noise, typical of mixed neighborhoods with shops and busy streets.
Inside the neighbourhood the index runs from 42 to 90. Some corners are much louder than others, usually next to the avenues.
The roads that weigh most on the noise of the neighbourhood are Rodovia Quarto Anel Viário (expressway, 439 m), Rua Pedro Nolasco Teixeira de Freitas (collector road, 213 m) and Rua Heleno de Freitas (residential street, 40 m). Traffic is the main source of noise.
The nearest airport is Aeródromo Feijó (small), 2.5 km away. Far enough to barely count.
There is a railway line 418 m away. Nearby local sources: railway (418 m), Industrial Rigel do Brasil (142 m), Varejão Sucata (204 m).
Day and night
By day the estimate is 60 dB(A), index 69. At night, with less traffic, it drops to 54 dB(A), index 85. 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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Test an address in Alto Alegre IINeighbouring areas
The closest neighbourhoods and their scores.
- Alto Alegre I744 m away69
- Novo Oriente1.4 km away86
- Parque Santa Maria1.4 km away53
- Alto Alegre1.4 km away70
- Conjunto Industrial1.6 km away49
- Industrial1.8 km away61
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.