The Mondego Mobility System (SMM), to be implemented by Infrastructures of Portugal, S.A. and Metro Mondego, S.A. (MM), consists of the implementation of a Metrobus with electric traction (a battery) on the old railway branch of Lousã and in the urban area of Coimbra, connecting Serpins, Lousã and Miranda do Corvo to Coimbra (serving the Coimbra B station and the central axis of the city between the river banks and the area).