Sensitivity map

Schools and hospitals most exposed to noise in Itajaí

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 87 schools and 13 hospitals with a name in OpenStreetMap in Itajaí, with the same model used for the neighbourhoods, at the point of each one.

schools

79 / 87

79 of 87 (91%) sit at points whose daytime estimate is above 50 dB(A); at night, 70 are above 45 dB(A). Average: 59.1 dB(A) by day.

hospitals

13 / 13

13 of 13 (100%) sit at points whose daytime estimate is above 50 dB(A); at night, 12 are above 45 dB(A). Average: 62.8 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Escola Básica José Potter	Cordeiros	70	64	42	Rodovia Governador Mário Covas (motorway, 113 m)
Escola Professor Pedro Paulo Philippi	Vila Nossa Senhora das Graças	68	61	47	Avenida Vereador Abrahão João Francisco (arterial road, 45 m)
Escola Básica Professora Edy Vieira Wendhausen Rothbarth	Salseiros	68	61	49	Rodovia Governador Mário Covas (motorway, 150 m)
Escola Básica Professora Maria Dutra Gomes	Dom Bosco	68	60	49	Rua Jacob Ardigó (collector road, 16 m)
Centro Educacional Pintando o Sete	Fazenda	67	59	49	Rua Lauro Müller (collector road, 14 m)
Escola Deputado Nilton Kucker	Vila Operária	67	60	50	Rua Heitor Liberato (arterial road, 53 m)
Escola Básica Antônio Ramos	Cordeiros	67	60	50	Avenida Doutor Reinaldo Schmithausen (arterial road, 51 m)
Centro Educacional de Cordeiros	Cordeiros	67	60	51	Avenida Doutor Reinaldo Schmithausen (arterial road, 54 m)
Escola Joaquim Vicente de Oliveira		66	60	52	Rodovia Governador Mário Covas (motorway, 167 m)
Colégio Cristão Amar	São Vicente	66	59	52	Avenida Governador Adolfo Konder (arterial road, 78 m)
Colégio São José	Centro	66	59	52	Rua Silva (arterial road, 76 m)
Colégio Ivo Silveira		66	60	53	Rodovia Governador Mário Covas (motorway, 232 m)
Escola de Ensino Médio Victor Meirelles	Centro	66	59	53	Rua Gil Stein Ferreira (collector road, 30 m)
Colégio Adventista de Itajaí	Centro	66	59	53	Rua Uruguai (arterial road, 48 m)
Escola de Educação Básica Nereu Ramos	Fazenda	66	59	54	Avenida Sete de Setembro (arterial road, 58 m)
Escola Básica Avelino Werner	São Judas	66	58	54	Rua Heitor Liberato (arterial road, 69 m)
Escola Estadual Olegário Bernardes		66	58	54	Rua 115 (collector road, 31 m)
Anglo	Fazenda	65	58	54	Avenida Ministro Victor Konder (collector road, 30 m)
Escola de Ensino Fundamental Francisco de Paula Seára	Vila Nossa Senhora das Graças	65	57	55	Rua Alberto Werner (collector road, 33 m)
Escola Carlos de Paula Seara	Vila Nossa Senhora das Graças	65	58	56	Avenida Vereador Abrahão João Francisco (arterial road, 82 m)
Escola Básica Francisco Celso Mafra	Itaipava	65	58	56	Rodovia Antônio Heil (arterial road, 103 m)
Escola Básica Professor Thereza Bezerra de Athaýde	Espinheiros	65	58	56	Rodovia Jorge Lacerda (arterial road, 78 m)
Escola Professora Júlia Miranda	Centro	64	56	58	Avenida Conselheiro João Gaya (collector road, 37 m)
Colégio Bom Jesus	Praia Brava	64	56	58	Rua Luci Canziani (collector road, 38 m)
Centro Educacional Construindo o Saber		63	56	60	3ª Avenida (arterial road, 154 m)
Colégio Cenecista Pedro Antônio Fayal	Vila Operária	63	56	60	Rua Alfredo Trompowisky (arterial road, 84 m)
Colégio Salesiano de Itajaí	Centro	63	55	61	Avenida Sete de Setembro (arterial road, 121 m)
Escola Básica Aníbal César	São Vicente	63	55	61	Rua Estefano José Vanolli (collector road, 48 m)
Escola Básica Gaspar da Costa Moraes	Fazenda	63	56	61	Avenida Osvaldo Reis (arterial road, 91 m)
Escola Prefeito Alberto Werner	Carvalho	63	56	62	Avenida Vereador Abrahão João Francisco (arterial road, 104 m)

The 13 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Centro de Referência da Criança e da Mulher	Centro	70	63	43	Avenida Coronel Marcos Konder (arterial road, 28 m)
Hospital Unimed	Praia Brava	68	61	47	Avenida do Estado (arterial road, 36 m)
Unimed Litoral	Praia Brava	67	60	49	Avenida Osvaldo Reis (arterial road, 50 m)
Hospital Infantil Pequeno Anjo	Centro	67	59	51	Rua João Bauer (collector road, 25 m)
Hospital e Maternidade Marieta Konder Bornhausen	Centro	64	57	58	Avenida Coronel Marcos Konder (arterial road, 113 m)
Hospital Municipal Santo Antônio		64	56	59	Rua 700 (collector road, 24 m)
Instituto Vida		63	56	60	Avenida do Estado (arterial road, 78 m)
Maternidade Santa Luzia	Praia Brava	63	56	60	Avenida Osvaldo Reis (arterial road, 99 m)
Hospital Unimed	Centro	63	55	61	Avenida Coronel Marcos Konder (arterial road, 147 m)
Hospital Municipal e Maternidade Ruth Cardoso		61	54	66	5ª Avenida (arterial road, 180 m)
Hospital Nossa Senhora dos Navegantes	Vila Imaruí	58	50	75	Rua Gracilides Coelho Reiser (collector road, 161 m)
Hospital Dia Padre Carlos Guesser		57	50	76	Rua 21 de Junho (arterial road, 174 m)
Hospital Cirúrgico Camboriú		53	44	88	Rua José Francisco Bernardes (main local road, 62 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 Itajaí

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.