A bus line starting in Barueri, running through Carapicuíba, Osasco and ending in Pinheiros was created to take people to São Paulo in alternate itineraries.

In 1952 the Parish Nossa Senhora Aparecida was built, and is now known as "Igreja Amarela" (Yellow Church), and the city population kept on increasing.

According to Professor Eduardo de Almeida Navarro, titular professor at the Faculdade de Filosofia, Letras e Ciências Humanas of University of São Paulo, the name has a controversial origin and may come from the Tupi or the Paulista General Language and may have different significations: Some people say that it may also come from Quar-I-Picui-Bae, name given by Indians to a small river delimiting a border between the city with Osasco and Cotia.

8 thousand litres of sewage from the central, western and southern portions of the city of São Paulo pass through the lake towards Barueri.

[9] The company is currently an operator of cell phones, fixed lines, internet (fiber optics/4G) and television (satellite and cable).

[9] The city is served by the Line 8 of São Paulo commuter rail, having two stations within the area of the municipality and a third one just after the border with Osasco.

It is also possible to access Carapicuíba from the Rodovia Raposo Tavares, which runs just south of it in the city of Cotia, and from Osasco via the Avenida dos Autonomistas.