Editing Commuter rail (section)

====South America====
[[File:EMU CSR M20 en Barrancas.jpg|thumb|The [[Mitre Line]] is part of the extensive [[Rail transport in Argentina#Commuter networks|Buenos Aires metropolitan rail system]].]]
Examples include an {{convert|899|km|mi|adj=on|abbr=on}} commuter system in the [[Rail transport in Argentina#Commuter networks|Buenos Aires metropolitan area]], the {{convert|225|km|mi|adj=on|abbr=on}} long [[Supervia]] in [[Rio de Janeiro]], the [[Metrotrén]] in [[Santiago]], [[Chile]], and the [[Valparaíso Metro]] in [[Valparaíso]], Chile.

Another example is [[Companhia Paulista de Trens Metropolitanos]] (CPTM) in [[Greater São Paulo]], [[Brazil]]. CPTM has 94 stations with seven lines, numbered starting on 7 (the lines 1 to 6 and the line 15 belong to the [[São Paulo Metro]]), with a total length of {{convert|273|km}}. Trains operates at high frequencies on tracks used exclusively for commuter traffic. In [[Rio de Janeiro]] [[SuperVia]] provides electrified commuter rail services.