Sensitivity map

Schools and hospitals most exposed to noise in Rio Branco

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 172 schools and 12 hospitals with a name in OpenStreetMap in Rio Branco, with the same model used for the neighbourhoods, at the point of each one.

schools

113 / 172

113 of 172 (66%) sit at points whose daytime estimate is above 50 dB(A); at night, 75 are above 45 dB(A). Average: 53.4 dB(A) by day.

hospitals

10 / 12

10 of 12 (83%) sit at points whose daytime estimate is above 50 dB(A); at night, 6 are above 45 dB(A). Average: 55.5 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Escola Clínio Brandão	Floresta Sul	70	63	41	Via Verde (arterial road, 25 m)
Escola Duque de Caxias	Belo Jardim II	70	64	43	BR-364 (expressway, 64 m)
Escola Presbiteriana João Calvino	Centro	70	63	43	Avenida Ceará (arterial road, 28 m)
Escola Municipal Brigadeiro Eduardo Gomes		70	64	43	Avenida Castelo Branco (expressway, 41 m)
Escola Chico Mendes	Loteamento Santa Helena	69	63	44	BR-364 (expressway, 69 m)
Escola Elozira Tomé	Adalberto Senna	69	61	45	Estrada Porto Acre (collector road, 11 m)
Escola Aracy Cerqueira		69	62	46	BR-364 (arterial road, 38 m)
Escola Paulo Freire	Belo Jardim II	67	61	49	BR-364 (expressway, 94 m)
Escola Zuleide Pereira de Souza	Santa Helena	67	61	50	Rodovia Senador Guiomard (expressway, 70 m)
Escola Nilce Machado da Rocha		67	59	51	AC-010 (collector road, 12 m)
Escola Mozart Donizet	Santa Quitéria	66	58	53	Avenida Antônio da Rocha Viana (collector road, 25 m)
Escola Municipal Fenelon Manoel		65	59	54	Avenida Castelo Branco (expressway, 91 m)
Escola Centro de Educação de Jovens e Adultos	Base	65	57	55	Avenida Epaminondas Jácome (collector road, 29 m)
Escola Dr. Mário de Oliveira	Cerâmica	64	57	58	Avenida Ceará (arterial road, 99 m)
Escola Clarisse Fecury	Santa Inês	63	57	59	Via Chico Mendes (arterial road, 106 m)
Escola Benfica	Vila Acre	63	57	60	Rodovia Senador Guiomard (expressway, 114 m)
Escola Jornalista Armando Nogueira	Jardim Primavera	63	56	61	Avenida Ceará (arterial road, 118 m)
Escola São Camilo		63	57	60	BR-364 (expressway, 118 m)
Escola Neutel Maia	Bosque	63	55	62	Rua Pernambuco (collector road, 45 m)
Escola Instituto São José	Papoco	62	54	63	Rua Floriano Peixoto (collector road, 38 m)
Escola Maria Angélica de Castro	Seis de Agosto	62	54	63	Rua Vinte e Quatro de Janeiro (collector road, 48 m)
Escola Manoel Gonzaga B. Filho		62	55	64	Avenida Castelo Branco (expressway, 153 m)
Escola Joelma Oliveira de Lima	Tancredo Neves	61	53	67	Rua Luiz Moraes (main local road, 18 m)
Escola Padre Diogo Feijó	Abraão Alab	60	52	67	Rua Rio de Janeiro (collector road, 46 m)
Escola Anice Dib Jatene	Geraldo Fleming	60	51	68	Rua Valdomiro Lopes (main local road, 37 m)
Escola Elozira dos Santos Thomé	Alto Alegre	60	52	69	Estrada Porto Acre (collector road, 72 m)
Escola Colégio Estadual Barão do Rio Branco	Papoco	60	52	69	Avenida Ceará (arterial road, 241 m)
Escola Lourival Sombra Pereira Lima	Tangará	60	52	69	Avenida Ceará (arterial road, 162 m)
Escola Adolfo Barbosa Leite		59	53	70	Rua do Buriti (residential street, 45 m)
Escola Leoncio de Carvalho	Vila Acre	59	53	70	Rodovia Senador Guiomard (expressway, 183 m)

The 12 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Unidade de Pronto Atendimento do Segundo Distrito	Amapá	64	57	57	Via Verde (arterial road, 79 m)
Centro de Saúde Barral y Barral	Tangará	64	57	59	Avenida Ceará (arterial road, 96 m)
Maternidade Bárbara Heliodora	Ipase	63	56	61	Avenida Ceará (arterial road, 111 m)
Hospital das Clínicas do Acre	Pedro Roseno	59	52	70	Via Verde (arterial road, 168 m)
Módulo de Saúde da Família	Jardim Primavera	54	48	83	Avenida Ceará (arterial road, 361 m)
UPA - Tucumã	Tucumã	54	45	85	BR-364 (arterial road, 463 m)
unidade Básica de saúde Santa inês	Santa Inês	54	47	85	BR-364 (expressway, 487 m)
Unidade basica de saúde Aeroporto Velho	Pista	53	44	86	Estrada Sobral (main local road, 56 m)
Pronto Atendimento UNIMED	José Augusto	53	44	87	Avenida Nações Unidas (main local road, 93 m)
Unidade de Pronto Atendimento da Sobral Franco Silva	Palheiral	53	44	88	Estrada Sobral (main local road, 65 m)
Hospital de Saúde Mental do Acre - Hosmac	Pista	50	41	95	Estrada Sobral (main local road, 94 m)
UPA	Cidade do Povo	46	38	100	Avenida Afif Arão (residential street, 71 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 Rio Branco

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.