Noise map
Petrópolis noise map
The Sossego Index estimates the noise of each neighbourhood from the traffic, airports, railways and local sources mapped in OpenStreetMap. 26 neighbourhoods of Petrópolis were rated. The city average is 90, Very calm. The quietest neighbourhood is Araras, scoring 100, and the loudest is Centro, scoring 70.
Map of the neighbourhoods of Petrópolis
Each dot is a neighbourhood, coloured by its index. Click to open its page.
What explains the ranking
The roads that most often set the noise of a neighbourhood are Estrada União e Indústria (arterial road, in 4 neighbourhoods), Rua Bingen (arterial road, in 3 neighbourhoods) and Rodovia Washington Luiz (motorway, in 3 neighbourhoods).
No neighbourhood has an airport close enough to weigh on the index.
At night, with less traffic, the city average rises to 98. 4 neighbourhoods are above the 50 dB(A) that NBR 10151 sets at night for residential areas; by day, 6 are above 55 dB(A).
Petrópolis neighbourhoods ranked
From quietest to loudest. Click a neighbourhood for details.
| # | Neighbourhood | Index | Night | Rating | Main road |
|---|---|---|---|---|---|
| 1 | Araras | 100 | 100 | Very calm | Estrada Bernardo Coutinho (main local road, 47 m) |
| 2 | Bonfim | 100 | 100 | Very calm | Estrada do Bonfim (local street, 85 m) |
| 3 | Castrioto | 100 | 100 | Very calm | Rua Santa Rita de Cássia (residential street, 25 m) |
| 4 | Floresta | 100 | 100 | Very calm | Rua Floresta (residential street, 49 m) |
| 5 | Glória | 100 | 100 | Very calm | Rua Nossa Senhora da Gloria (residential street, 50 m) |
| 6 | Itamarati | 100 | 100 | Very calm | Rua Doutor João Barcellos (residential street, 20 m) |
| 7 | Quarteirão Ingelheim | 100 | 100 | Very calm | Rua Marechal Hermes (residential street, 45 m) |
| 8 | Retiro | 100 | 100 | Very calm | Avenida Barão do Rio Branco (arterial road, 669 m) |
| 9 | São Sebastião | 100 | 100 | Very calm | Rua Vital Brasil (main local road, 27 m) |
| 10 | Benfica | 96 | 100 | Very calm | Rua José Rodrigues Portela (residential street, 3 m) |
| 11 | Independência | 96 | 100 | Very calm | Estrada Antônio da Silva Ligeiro (main local road, 32 m) |
| 12 | Mosela | 94 | 100 | Very calm | Rua Alberto de Oliveira (main local road, 78 m) |
| 13 | Quissamã | 94 | 100 | Very calm | Rua Quissamã (main local road, 107 m) |
| 14 | Siméria | 93 | 100 | Very calm | Estrada Presidente Sodré (main local road, 23 m) |
| 15 | Nogueira | 90 | 100 | Very calm | Estrada União e Indústria (arterial road, 222 m) |
| 16 | Castelânea | 87 | 100 | Very calm | Rua Cristóvão Colombo (collector road, 17 m) |
| 17 | Quitandinha | 86 | 100 | Very calm | Rodovia Washington Luiz (motorway, 590 m) |
| 18 | Duarte da Silveira | 83 | 97 | Calm | Rodovia Washington Luiz (motorway, 542 m) |
| 19 | Alto da Serra | 81 | 100 | Calm | Rua Teresa (collector road, 4 m) |
| 20 | Vila Felipe | 81 | 100 | Calm | Estrada Velha da Estrela (collector road, 366 m) |
| 21 | Valparaíso | 80 | 100 | Calm | Rua Gonçalves Dias (main local road, 4 m) |
| 22 | Bingen | 77 | 93 | Calm | Rua Doutor Paulo Herve (arterial road, 110 m) |
| 23 | Cascatinha | 77 | 98 | Calm | Rua Hivio Maliato (main local road, 39 m) |
| 24 | Fazenda Inglesa | 76 | 92 | Calm | Rodovia Washington Luiz (motorway, 454 m) |
| 25 | Corrêas | 71 | 89 | Calm | Estrada União e Indústria (arterial road, 101 m) |
| 26 | Centro | 70 | 91 | Calm | Rua do Imperador (collector road, 3 m) |
Most exposed schools and hospitals
87 schools and 16 hospitals in Petrópolis scored with the same model, the most exposed to noise first.
See the rankingQuestions about noise in Petrópolis
Which is the quietest neighbourhood of Petrópolis?
Araras, with Sossego Index 100 out of 100. The road that weighs most there is Estrada Bernardo Coutinho, 47 m from the centre of the neighbourhood.
Which is the loudest neighbourhood of Petrópolis?
Centro, with Sossego Index 70. The main source of noise is the traffic on Rua do Imperador, 3 m from the centre of the neighbourhood.
What is the average noise level of Petrópolis?
The average of the 26 neighbourhoods is 90 out of 100, Very calm, about 51 dB(A) by day. At night the average rises to 98.
What is the noise limit in Petrópolis?
The national technical reference is NBR 10151: 55 dB(A) by day and 50 at night in mixed, mostly residential areas, 50 and 45 near schools and hospitals, 60 and 55 in commercial areas. Municipal noise ordinances may set different hours and limits; check with the city.
How was the noise of each neighbourhood calculated?
The Sossego Index is an estimate made with an acoustic model over OpenStreetMap data: roads by type, railways, airports and local sources. Each neighbourhood gets the median of nine points around its centre. It is not a sound level meter measurement. The full methodology, with the validation against measurements, is on the How it works page.
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.