The Companhia Paulista de Trens Metropolitanos (CPTM) is a public transportation company in the state of São Paulo, Brazil. Established in 1992, it operates a network of suburban trains that connect the city of São Paulo with its surrounding municipalities. The CPTM plays a crucial role in facilitating daily commutes for millions of passengers. CPTM's train system consists of several lines, each identified by a color and number, making it easier for users to navigate. The company aims to provide efficient, safe, and reliable transportation, contributing to the overall mobility and economic development of the São Paulo metropolitan area.