as the tracks themselves on many locations, are still in situ, but will need to be replaced as they were designed for a single metric gauge line, while the new one will be standard gauge and double-track for most of its length. The new line will branch off the airport line just beyond Koropi station, where existing infrastructure for a possible extension is already in place. New stations will be built at: Markopoulo Kalyvia Kouvaras Keratea Kalopigado Thoriko Lavrio Port of Lavrio or near the same site as their predecessors, the buildings of which, most of them listed structures, will hopefully be preserved. The line will be electrified upon inauguration. Section: SKA – Pallini - Rafina Future services to Rafina will be on new lines, currently securing funds. The line to Rafina shall branch off after Pallini station and will partly run on the central reservation of the Hymittus Ring Road. The stations will be: Pikermi Kallitechnoupoli Rafina Section: SKA – Corinth / Kiato / Aigio / Patras / Loutraki The existing line to Kiato has been extended to Aigio. The extension to Patras is under construction. A branch line to Loutraki is under construction. Zefyri: A new station to serve a future sports center. Xylokastro: New station with two platforms and pass-through line. Aigio: New station with three platforms. Loutraki branch: Isthmos Loutraki Section: SKA – Halkida / Thiva These stations are on the existing mainline and are served by regional and mainline trains. They shall be served by Proastiakos suburban trains in the future, when electrification and adequate line capacity are available between Athens and SKA. Acharnai Railway Center (SKA) Acharnes Dekeleia Agios Stefanos Afidnes Sfendali Avlonas Agios Thomas Oinofyta Oinoi, Junction to Chalkis (Oinoi–Chalcis railway) Kalochori-Panteichi Avlis Steno Halkida Tanagra Elaion Ypaton Thiva See also Athens Mass Transit System References Further reading External links TrainOSE S.A. Hellenic Railways Organisation (OSE) Athens Urban Transport Organisation (OASA) Standard gauge railways in Greece Metre gauge railways in Greece