Sensitivity map

Schools and hospitals most exposed to noise in Viamão

NBR 10151 sets 50 dB(A) by day and 45 at night as the reference for school and hospital areas, below the 55 dB(A) of residential areas. We scored 229 schools and 11 hospitals with a name in OpenStreetMap in Viamão, with the same model used for the neighbourhoods, at the point of each one.

schools

208 / 229

208 of 229 (91%) sit at points whose daytime estimate is above 50 dB(A); at night, 191 are above 45 dB(A). Average: 58.3 dB(A) by day.

hospitals

11 / 11

11 of 11 (100%) sit at points whose daytime estimate is above 50 dB(A); at night, 10 are above 45 dB(A). Average: 61.6 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
SENAI		70	65	42	Rodovia Mário Quintana (expressway, 107 m)
Escola Estadual Júlio Cesar Ribeiro de Souza		69	63	45	Avenida Presidente Getúlio Vargas (arterial road, 40 m)
Colégio Estadual Antônio Gomes Corrêa		69	63	46	Freeway (motorway, 115 m)
E.M.E.F. Padre Schneider	Itapuã	68	61	46	Estrada Frei Pacífico Dellevoux (arterial road, 35 m)
Escola Genoveva da Costa Bernardes		68	61	46	Estrada do Varejão (arterial road, 39 m)
Escola Padre Schneider	Itapuã	68	61	46	Estrada Frei Pacífico Dellevoux (arterial road, 35 m)
Escola Estadual de Ensino Médio Agrônomo Pedro Pereira	Jardim Universitário	68	61	46	Avenida Bento Gonçalves (arterial road, 37 m)
Escola Municipal de Ensino Fundamental Barreto Viana	Cinturão Azul	68	61	48	Rodovia Coronel Acrísio Martins Prates (arterial road, 28 m)
Colégio Romano Senhor Bom Jesus		68	61	48	Avenida Protásio Alves (arterial road, 50 m)
Colégio Estadual Nicolau Chiavaro Neto		67	60	49	Avenida Marechal Hermes da Fonseca (arterial road, 46 m)
Escola Estadual Antônio de Castro Alves		67	60	49	Rua Ceará (collector road, 13 m)
Escola Municipal Papa João XXIII		67	60	49	Avenida Fernando Ferrari (arterial road, 56 m)
Escola Desidério Torquato Finamor		67	60	50	Avenida Bento Gonçalves (arterial road, 46 m)
Escola Estadual Marechal Mascarenhas de Moraes		66	58	52	Rua Lídio Batista Soares (collector road, 25 m)
Escola General Neto		66	59	52	Avenida Edgar Pires de Castro (arterial road, 27 m)
Escola Engenheiro Rodolfo Ahrons		66	59	53	Avenida Baltazar de Oliveira Garcia (arterial road, 75 m)
Escola Almirante Bacelar	Paraíso	66	58	54	Avenida Paraíso (collector road, 36 m)
Escola Oscar Coelho de Souza		66	59	54	Estrada do Varejão (arterial road, 45 m)
Mario Quintana		66	60	54	Freeway (motorway, 207 m)
Colégio Marista Graças	Vidigueiras	66	58	54	Avenida Senador Salgado Filho (arterial road, 65 m)
EE Fundamental Osório		65	57	55	Rua Tiburcio de Azevedo (collector road, 18 m)
E.E. Farroupilha	Vidigueiras	65	58	55	Avenida Senador Salgado Filho (arterial road, 65 m)
Escola República Argentina		65	59	55	Avenida Sertório (arterial road, 551 m)
Unificado Pré-vestibular		65	58	56	Avenida Assis Brasil (collector road, 56 m)
Escola Municipal de Ensino Fundamental Farroupilha	Orieta	65	57	56	Avenida Senador Salgado Filho (arterial road, 74 m)
Colégio Êxito	Loteamento Popular	65	56	57	Avenida Zero Hora (collector road, 30 m)
Escola América		64	57	57	Avenida Baltazar de Oliveira Garcia (arterial road, 93 m)
Escolinha Aprendiz		64	57	57	Avenida General Flores da Cunha (arterial road, 103 m)
CADOP		64	58	58	Rua Bonifácio Carvalho Bernardes (main local road, 289 m)
Escola Municipal Ensino Fundamental Cristiano Vieira da Silva	Santa Fé	64	57	58	Rodovia Tapir Rocha (arterial road, 56 m)

The 11 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Hospital Dom João Becker		69	62	44	Avenida José Loureiro da Silva (arterial road, 31 m)
UPA 24Horas	Império	68	61	47	Avenida Senador Salgado Filho (arterial road, 46 m)
Unidade de Referência Secundária Centro	Center Park	67	59	50	Rua General Osório (collector road, 13 m)
Hospital Restinga e Extremo-Sul		65	62	54	Estrada João Antônio da Silveira (collector road, 126 m)
Hospital Independência		63	55	62	Avenida Antônio de Carvalho (collector road, 54 m)
Clínica Solaris		62	55	62	Rua Benjamin Constant (collector road, 38 m)
Hospital Viamão	Setembrina	61	53	65	Avenida Bento Gonçalves (collector road, 77 m)
Hospital Padre Jeremias		57	50	75	Avenida General Flores da Cunha (arterial road, 315 m)
Hospital de Alvorada		56	48	79	Avenida Maringá (collector road, 111 m)
US Luciana	União	56	47	80	Rua Zilda de Abreu (residential street, 8 m)
Pronto-Atendimento Saúde Restinga		53	44	87	Rua Engenheiro Oscar de Oliveira Ramos (main local road, 96 m)

An estimate at the map point, not a measurement. Buildings, walls and inner courtyards can cut the noise inside a school or hospital a lot. The list points to where measuring is worthwhile.

Noise map of Viamão Download the data for Viamão

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.