Line A4 (Athens Suburban Railway)

Route map
	Legend
	Line A3 to Chalcis
Key
	This diagram: view; talk; edit;

Line A4 (Piraeus–Kiato)
Line A4 (Piraeus–Kiato)
	A Siemens built OSE class 460 awaiting departure at Corinth, October 2005
Overview
Service type	Commuter rail
Status	Operating
Locale	Greece (Attica), Peloponnese
First service	12 December 2010; 14 years ago
Current operator(s)	Hellenic Train
Former operator(s)	TrainOSE
Website	www.hellenictrain.gr
Route
Termini	Piraeus; Kiato
Stops	20
Distance travelled	120.7 km (75.0 mi)
Average journey time	1 hour and 45 minutes
Service frequency	18 per-day
Line(s) used	Piraeus–Platy Athens Airport–Patras
Technical
Rolling stock	OSE class 460 (EMU)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Operating speed	175 km/h (109 mph) (maximum)
Track owner(s)	OSE (Lines), GAIOSE (Buildings)
Route map
Route map
	Legend
	Line A3 to Chalcis
Key
	This diagram: view; talk; edit;

Line A4 is an Athens Suburban Railway (Proastiakos) line in Athens, Greece, managed by Hellenic Train. The service connects Piraeus with the coastal city of Kiato. The line shares a part of its course with lines A1 and A3 as well as Metro line 2, but also with line A3 at Ano Liosia. The first Suburban line was inaugurated on 30 July 2004, using 17 OSE Class 560 DMUs between Larissa Station (Now Athens) and the Airport.^[5] With the completion of the electrification of the sections of the line to Athens in 2017 and Piraeus in 2018.^[6]^[7] The line now exclusively uses OSE class 460 EMUs rolling stock.

^ "ΤΡΑΙΝΟΣΕ: Νέο πλέγμα δρομολογίων Προαστιακού Σιδηροδρόμου" [TrainOSE: New network of Suburban Railway routes]. Capital.gr (in Greek). Athens. 10 December 2010. Archived from the original on 14 March 2024. Retrieved 6 August 2024. "Προαστιακός (χάρτης)" [Proastiakos (map)] (PDF). TrainOSE (in Greek and English). Athens: OSE. 11 August 2011. Archived from the original (PDF) on 4 October 2011. Retrieved 6 August 2024.
^ "Network Statement: Annexes" (PDF). OSE. Athens. 6 December 2021. Archived from the original (PDF) on 19 September 2022. Retrieved 24 May 2024.
^ "Annexes". Network Statement (PDF) (2023 ed.). Athens: Hellenic Railways Organization. 17 January 2023. pp. 1–2. Archived from the original on 2 October 2023. Retrieved 24 September 2023.{{cite book}}: CS1 maint: bot: original URL status unknown (link)
^ "Home". gaiaose.com.
^ Athens Suburban and Regional Railway. "Athens Suburban and Regional Railway | Hellenic Train". Hellenic Train. Hellenic Train. Retrieved 14 February 2025.
^ "Ηλεκτροκίνηση 3 Γέφυρες – Πειραιάς". ΕΡΓΟΣΕ. 5 September 2018. Retrieved 6 September 2020.
^ "ΣΚΑ – 3 Γέφυρες". ΕΡΓΟΣΕ. 19 March 2018. Retrieved 6 September 2020.

[asr-network-2010-1] "ΤΡΑΙΝΟΣΕ: Νέο πλέγμα δρομολογίων Προαστιακού Σιδηροδρόμου" [TrainOSE: New network of Suburban Railway routes]. Capital.gr (in Greek). Athens. 10 December 2010. Archived from the original on 14 March 2024. Retrieved 6 August 2024. "Προαστιακός (χάρτης)" [Proastiakos (map)] (PDF). TrainOSE (in Greek and English). Athens: OSE. 11 August 2011. Archived from the original (PDF) on 4 October 2011. Retrieved 6 August 2024.

[network-2022-2] "Network Statement: Annexes" (PDF). OSE. Athens. 6 December 2021. Archived from the original (PDF) on 19 September 2022. Retrieved 24 May 2024.

[ose-ns-2023-3] "Annexes". Network Statement (PDF) (2023 ed.). Athens: Hellenic Railways Organization. 17 January 2023. pp. 1–2. Archived from the original on 2 October 2023. Retrieved 24 September 2023.{{cite book}}: CS1 maint: bot: original URL status unknown (link)

[4] "Home". gaiaose.com.

[5] Athens Suburban and Regional Railway. "Athens Suburban and Regional Railway | Hellenic Train". Hellenic Train. Hellenic Train. Retrieved 14 February 2025.

[6] "Ηλεκτροκίνηση 3 Γέφυρες – Πειραιάς". ΕΡΓΟΣΕ. 5 September 2018. Retrieved 6 September 2020.

[7] "ΣΚΑ – 3 Γέφυρες". ΕΡΓΟΣΕ. 19 March 2018. Retrieved 6 September 2020.

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Line A4 (Athens Suburban Railway)

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