Sensitivity map

Schools and hospitals most exposed to noise in Colombo

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

schools

149 / 173

149 of 173 (86%) sit at points whose daytime estimate is above 50 dB(A); at night, 125 are above 45 dB(A). Average: 56.5 dB(A) by day.

hospitals

11 / 13

11 of 13 (85%) sit at points whose daytime estimate is above 50 dB(A); at night, 10 are above 45 dB(A). Average: 59.4 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Escola Municipal Jardim Ana Maria	Mauá	71	65	39	Rodovia Régis Bittencourt (motorway, 84 m)
Escola Acesso		70	63	42	Rodovia do Calcário (arterial road, 45 m)
Escola Terceira Dimensão		69	62	45	Rua João Gbur (arterial road, 33 m)
Colégio Stella Maris		68	61	46	Rua Rocha Pombo (collector road, 10 m)
Colégio Le Savant	Vila Cordeiro	68	61	48	Estrada da Ribeira (arterial road, 38 m)
Guarda Mirim		67	60	49	Avenida Anita Garibaldi (collector road, 15 m)
Escola Municipal Cristóvão Colombo	Planta P. Busato	67	60	50	Rua José Cavassin (arterial road, 44 m)
Colégio Estadual Antônio Lacerda Braga	Fátima	67	60	50	Estrada da Ribeira (arterial road, 82 m)
Escola Municipal Dr. Manoel Costacurta	Atuba	67	61	51	Rodovia Régis Bittencourt (motorway, 163 m)
Colégio Estadual Edimar Wright		66	63	51	Rodovia Vereador Admar Bertolli (expressway, 181 m)
Escola Municipal Anísio Teixeira	Atuba	66	59	52	Estrada da Ribeira (arterial road, 68 m)
Colégio Adventista Colombo	Santa Terezinha	66	59	53	Estrada da Ribeira (arterial road, 60 m)
Colégio Estadual Ângelo Gusso, EF M		66	61	53	Rua Flávio Dallegrave (collector road, 46 m)
Ivan F Do Amaral Filho	Vila Luiz Baron	66	60	53	Rodovia Régis Bittencourt (motorway, 187 m)
Colégio Santa Cândida	Campo Pequeno	66	59	54	Rua Theodoro Makiolka (collector road, 43 m)
Escola Municipal		65	60	54	Rua Domingos Scucato (collector road, 65 m)
Colégio Adventista		65	58	55	Rua Nilo Peçanha (arterial road, 90 m)
Colégio Adventista Boa Vista		65	57	56	Rua Fernando de Noronha (collector road, 19 m)
Escola Municipal Santa Isabel	Vila Cordeiro	65	58	56	Estrada da Ribeira (arterial road, 69 m)
Escola Estadual Maria Pereira Martins		65	59	56	Avenida Anita Garibaldi (collector road, 26 m)
Escola Municipal Rural Imbuial da Roseira	Vila Casa Branca	65	58	56	Estrada da Ribeira (arterial road, 46 m)
Colégio Estadual Leôncio Correia, EF M Profis		64	58	57	Rua Canadá (arterial road, 105 m)
Escola Municipal Anísio Teixeira	Atuba	64	57	57	Avenida Maringá (arterial road, 78 m)
Colégio Santa Maria		64	57	58	Rua Mateus Leme (arterial road, 84 m)
Escola Municipal Jardim Taiza		64	59	59	Rodovia Vereador Admar Bertolli (expressway, 128 m)
Colégio Integral		63	55	59	Rua Alberto Folloni (main local road, 14 m)
Nossa Senhora da Salete, E E-EF		63	56	59	Rua Lange de Morretes (collector road, 35 m)
Convento Irmãs Passionistas	Vila Cordeiro	63	56	60	Estrada da Ribeira (arterial road, 88 m)
Escola Municipal		63	55	60	Rua José Bajerski (collector road, 30 m)
Colégio Dom Bosco		63	56	61	Avenida Manoel Ribas (arterial road, 111 m)

The 13 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Hospital Ônix Mateus Leme		67	60	51	Rua Mateus Leme (arterial road, 33 m)
Centro Hospitalar de Reabilitação - Ana Carolina Moura Xavier		66	59	53	Rua Coronel João de Alencar Guimarães Filho (arterial road, 54 m)
Consultório Médico - Prevedello Saúde - Dr. Endrigo Prevedello		66	59	53	Rua Jovino do Rosário (arterial road, 70 m)
Hospital Nossa Senhora do Pilar		65	57	56	Avenida Desembargador Hugo Simas (collector road, 27 m)
Hospital São Lucas		63	56	61	Rua Campos Sales (arterial road, 124 m)
Pronto Atendimento 24 horas		63	55	61	Rua Pedro Cambio Cortiano (collector road, 28 m)
Hospital Vita Curitiba		62	56	62	Linha Verde (expressway, 159 m)
Hospital Cindacta		62	55	63	Avenida Prefeito Erasto Gaertner (collector road, 67 m)
Hospital Angelina Caron		59	51	71	Rodovia do Caqui (collector road, 67 m)
Hospital Municipal Santa Júlia		59	51	72	Rua Benjamin Constant Teixeira (arterial road, 129 m)
Unidade de Pronto Atendimento Alto Maracanã	Fátima	51	43	92	Estrada da Ribeira (arterial road, 459 m)
Unidade de Pronto Atendimento Osasco	Osasco	50	43	96	Rodovia da Uva (expressway, 506 m)
Hospital Colônia Adauto Botelho		40	34	100	Rua Ivone Pimentel (local street, 106 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 Colombo

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.