Neighbourhood noise map
Alto da Brasília, Sobral
Sossego Index 74 out of 100: Calm. Ranked 17 of the 37 neighbourhoods rated in Sobral. That matches the city average of 74.
Low noise most of the day. You can sleep with the window open.
Inside the neighbourhood the index runs from 44 to 99. 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 José Menescau Machado de Andrade (collector road, 171 m), Avenida Pimentel Gomes (collector road, 210 m) and Rua Abelardo Gomes (collector road, 211 m). Traffic is the main source of noise.
The nearest airport is Aeroporto Regional de Sobral - Dr. Luciano de Arruda Coelho (international), 12.9 km away. Far enough to barely count.
There is a railway line 218 m away. Nearby local sources: VLT de Sobral - Linha Norte (218 m), industrial zone (239 m), Ferrovia Transnordestina (1.2 km).
Day and night
By day the estimate is 58 dB(A), index 74. At night, with less traffic, it drops to 51 dB(A), index 93. 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 da BrasíliaNeighbouring areas
The closest neighbourhoods and their scores.
- Jerônimo de Medeiros Prado610 m away89
- Expectativa836 m away64
- Coração de Jesus1 km away61
- Jocely Dantas de Andrade Torres1.1 km away74
- Novo Recanto1.1 km away100
- Colina1.3 km away85
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.