Subte de Buenos Aires
First unified logo for the network introduced by Metrovías. Each line had a different coloured version of this logo (A-Light Blue, B-Red, C-Blue, D-Green, E-Purple, H-Yellow)
Despite the fact that the individual colours were gotten rid of at the entrances, they still represent each line, while yellow is the official colour for the entire line.
This logo is only used in certain websites and for the Android and iOS apps.