Neighbourhood noise map
Expectativa, Sobral
Sossego Index 64 out of 100: Active. Ranked 28 of the 37 neighbourhoods rated in Sobral. That is below the city average of 74.
Moderate, steady noise, typical of mixed neighborhoods with shops and busy streets.
Inside the neighbourhood the index runs from 32 to 77. Some corners are much louder than others, usually next to the avenues.
The roads that weigh most on the noise of the neighbourhood are Avenida José Euclides Ferreira Gomes (arterial road, 184 m), Avenida José Figueiredo de Paula Pessoa (collector road, 308 m) and Rua José Gerardo Frota Parente (residential street, 27 m). Traffic is the main source of noise.
The nearest airport is Aeroporto Regional de Sobral - Dr. Luciano de Arruda Coelho (international), 13.7 km away. Far enough to barely count.
There is a railway line 312 m away. Nearby local sources: Ferrovia Transnordestina (814 m), VLT de Sobral - Linha Norte (312 m), industrial zone (219 m).
Day and night
By day the estimate is 62 dB(A), index 64. At night, with less traffic, it drops to 54 dB(A), index 83. 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 ExpectativaNeighbouring areas
The closest neighbourhoods and their scores.
- Coração de Jesus624 m away61
- Parque Silvana681 m away78
- Alto da Brasília836 m away74
- Campo dos Velhos912 m away57
- Colina1.3 km away85
- Jerônimo de Medeiros Prado1.4 km away89
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.