Line 1 (Athens Metro)

The first steam-powered railway in Greece was inaugurated on 27 February 1869 and connected Thisio with Piraeus with a single-track railway.{{Cite web |title=ΕΛΛΗΝΙΚΟ ΜΕΤΡΟ Α.Ε. |url=https://www.emetro.gr/page/default.asp/?la=1&id=22 |access-date=2025-02-02 |language=el}} It was electrified in 1904 and since then, taking into account international standards, it can be considered the first metro line in Greece.{{Cite web |date=2013-03-13 |title=UITP - International Association of Public Transport |url=http://www.uitp.org/Public-Transport/metro/index.cfm |access-date=2024-12-01 |archive-url=https://web.archive.org/web/20130313221309/http://www.uitp.org/Public-Transport/metro/index.cfm |archive-date=13 March 2013 }} Over the years, due to electrification, this first railway became known to the general public as the 'Electric Railway' or simply 'The Electric' (Ηλεκτρικός). Gradually, but mainly after the Second World War, it expanded to the north, until it reached Kifissia in 1957.{{Cite web |date=2022-02-17 |title=ΣΤΑΣΥ {{!}} Σταθερές Συγκοινωνίες Μον. Α.Ε |url=https://www.stasy.gr/?id=407&L=0%22a |access-date=2025-02-02 |website=stasy.gr |language=el}} From then until today, it connects Piraeus with the center of Athens and Kifissia, The Electric line is for the most part above ground, although 3.2 kilometers in the center of Athens are underground, while some stations in the northern part of they are above ground (bridge type). With the creation of two new, underground metro lines in 2000 (Line 2 and Line 3), it was renamed Line 1 of the Athens metro network, as it received the name "Line 1" as the oldest of the network.

In 1855, Prime Minister Alexandros Mavrokordatos tabled a Bill "on the establishment of a railway from Athens to Piraeus", which was published as Law TZ' in the Government Newspaper on 28 December. According to the law, the railway was classified as a project of public necessity, in order for the contractor to carry out the necessary land sales. Also, the right of exploitation was granted to the company or individual who would undertake the project for 55 years. Two years later, said right was increased to 75 years. Attempts to commission the project immediately began, but were unsuccessful. Twelve years later, in 1867, the project was finally awarded to English businessman Edward Pickering. The overland railway begins construction in November of the same year. The following year, in 1868, Pickering commissioned the continuation of the project to the newly founded company "Railways of Athens-Piraeus" (SAP SA).

The opening of the railway was scheduled for 15 February 1869, but was postponed to the 27th of the same month. It was finally ready on 17 February, when the SAP started running test trains.{{Cite web |date=2022-02-17 |title=ΣΤΑΣΥ {{!}} Σταθερές Συγκοινωνίες Μον. Α.Ε |url=https://www.stasy.gr/?id=407&L=0%22a |access-date=2025-02-02 |website=stasy.gr |language=el}}

On 27 February 1869, the Thiseio–Piraeus line was officially inaugurated, with Queen Olga, Prime Minister Thrasyvoulos Zaimis, ministers, soldiers, diplomats, other officials and journalists as passengers on the first route. The first six-car locomotive covered the 8.5 km route from Thisio to Piraeus in about 19 minutes.{{Vague|date=February 2025}}{{Cite web |title=ΕΛΛΗΝΙΚΟ ΜΕΤΡΟ Α.Ε. |url=https://www.emetro.gr/page/default.asp/?la=1&id=22 |access-date=2025-02-02 |language=el}}

A few days after the inauguration, on 3 March, the "Aion" newspaper wrote: "The railway has been working regularly since last Friday. The flow of passengers has reached its maximum. Everyone is talking about the great benefits, let the completion of this work be accomplished. We also hope that this small line will be the beginning of a nationwide railway archipelago"

As the traffic of the line increased, simple stops began to become stations with platforms. In 1882 the stations of Faliro and Moschato were inaugurated. Originally the track was single, but by 1904, when it was electrified, it had been converted into a double track, as is the case to this day.

In order to implement the first extension of this urban means of transport, the Athens to Piraeus Railway Extension Company was founded by Stefanos Psychas and began the construction of a tunnel in 1889 from Thisio to Omonia. The first station of Omonia, which was only partially underground (and partially open trench), was built at the intersection of Lykourgos and Athena streets and was inaugurated on 17 May 1895, together with the Monastiraki intermediate station, with a similar structure.{{Cite book |last= |first= |title=Οι Ελληνικοί Σιδηρόδρομοι - Η διαδρομή τους από το 1869 έως σήμερα |publisher=Μίλητος |year= |isbn= |location=Αθήνα |pages=25}}

In 1882, the Railways of Attica (SA) were established to create and operate a single line that would connect Athens with Lavrio. An extension from Iraklio to Kifissia was added to the original engraving, while it was later extended north to Strofyli. The line was inaugurated in 1885. It was single, metric gauge and operated with a steam engine, the so-called Thirio(Beast). Its starting point was initially in Attica Square, which was named so because that was the starting point of the Attica Railways, while in 1889 the line was extended to the current Lavrio Square, which also took its name from the departure point of the trains to Lavrio.{{Cite book |last= |first= |title=Οι Ελληνικοί Σιδηρόδρομοι - Η διαδρομή τους από το 1869 έως σήμερα |publisher=Μίλητος |year= |isbn= |location=Αθήνα |pages=38–44}}

The electrification of the Piraeus–Omonia line was inaugurated on 16 September 1904.{{Cite web |date=2022-02-17 |title=ΣΤΑΣΥ {{!}} Σταθερές Συγκοινωνίες Μον. Α.Ε |url=https://www.stasy.gr/?id=407&L=0%22a |access-date=2025-02-02 |website=stasy.gr |language=el}} But both the electrification and the tunnel in Omonia, examples of new technologies, were treated with reservation or even fear by many passengers.

In 1926, three fixed-track companies, SAP, Attica Railways and Athens-Piraeus Railways, which operated the trams, cooperated with the English Power group.

Two companies emerged from this collaboration: the Electric Transport Company (HEM), which took over the operation of the Trams and the Kifissia Line, and the Hellenic Electric Railways (EIS). EIS replaced SAP and at the same time committed to improve the existing line and extend the underground tunnel to Attiki station with a double track to join Elektrikos with Kifissia, with a new, underground station below Omonia. In order to facilitate the works, the section of the Lavrio line from the homonymous square to Attica square was abolished and the starting point of the trains returned to the second.{{Cite book |last= |first= |title=Οι Ελληνικοί Σιδηρόδρομοι - Η διαδρομή τους από το 1869 έως σήμερα |publisher=Μίλητος |year= |isbn= |location=Αθήνα |pages=38–44}} At the same time, the construction of a new station in Piraeus began in the same year.{{Cite news |last=Ρηγόπουλος |first=Δημήτρης |date=12 December 2001 |title=Εκσυγχρονισμός και ιστορική μνήμη |url=http://www.kathimerini.gr/106923/article/politismos/arxeio-politismoy/eksygxronismos-kai-istorikh-mnhmh |work=Η Καθημερινή}} The new Piraeus station was inaugurated on 30 June 1928, the same day as the Kallithea station.{{Cite news |date=1 July 1928 |title=Τα χθεσινά εγκαίνια του σταθμού του ηλεκτρικού σιδηροδρόμου Πειραιώς |url= |access-date= |work=Εμπρός |page=7 |via=}}

The works of the first extension of the urban railway for over thirty years, started in January 1928. On 21 July 1930, the Omonia underground station was inaugurated by Prime Minister Eleftherios Venizelos. In 1937 HEM took over the electrification of the Kifissia railway and in 1938 it abolished Therio, to continue the work of extending the line to the north, however the war prevented the continuation of the works.

Finally, in 1948 the Victoria station was inaugurated and in 1949 the Attiki station. In 1950, HEM granted EIS the completion of the electrification project and the operation of the Athens-Kifisia railway. HEIS continued the works and in 1956 the stations Aghios Nikolaos, Kato Patisia and Ano Patisia, Perissos and Nea Ionia were delivered. At the beginning of 1957, the Iraklio station was handed over, while on August 18 the line was connected to its terminus with the operation of the Kifissia station.{{Cite book |last= |first= |title=Οι Ελληνικοί Σιδηρόδρομοι - Η διαδρομή τους από το 1869 έως σήμερα |publisher=Μίλητος |year= |isbn= |location=Αθήνα |pages=32}} Now the urban railway, which had become known in public opinion as "Electric" (because of the electrification, in contrast to the older steam-powered "Thirio"), connected Piraeus with Kifissia. This was also the last kilometer extension of the line, but in the following years and decades the stations included increased, with the gradual addition of intermediate stations. Two weeks later, on 1 September, the Marousi station was handed over,{{Cite book |last= |first= |title=Οι Ελληνικοί Σιδηρόδρομοι - Η διαδρομή τους από το 1869 έως σήμερα |publisher=Μίλητος |year= |isbn= |location=Αθήνα |pages=32}} while in 1961 Agios Eleftherios was inaugurated.{{Cite book |last= |first= |title=Οι Ελληνικοί Σιδηρόδρομοι - Η διαδρομή τους από το 1869 έως σήμερα |publisher=Μίλητος |year= |isbn= |location=Αθήνα |pages=33}}

In 1976, the Hellenic Electric Railways, fifty years after their establishment, were acquired by the Greek State and renamed the Athens-Piraeus Electric Railways (ISAP). In the 1980s, three intermediate (along the line) new stations were built: Eirini station, designed to serve OAKA and opened on 3 September 1982{{Cite news |date=4 September 1982 |title=Σταθμός Ειρήνης στο Ολυμπιακό Στάδιο |work=Ριζοσπάστης |page=9}} the Tavros station, inaugurated on 6 February 1989,{{Cite news |last= |first= |date=12 February 1989 |title=Νέος σταθμός στον Ταύρο |url= |access-date= |work=Το Βήμα |page=27 |via=}} and that of KAT, which was built with the aim of serving the adjacent hospital of the same name and was inaugurated on 27 March 1989.

Between 2001 and 2004, in view of the 2004 Olympic Games, an extensive program of renovations of all the stations of the line took place, while between 2008 and 2011, reconstruction works were carried out on the railway line from Neo Faliro to Kifissia. Also, the Neratziotissa station was built, which allows transfers from Line 1 to the Suburban network.{{Cite news |date=6 August 2004 |title=Νερατζιώτισσα, Κακιά Σκάλα, Αττική οδός |url=http://www.kathimerini.gr/190718/article/epikairothta/ellada/neratziwtissa-kakia-skala-attikh-odos |work=Η Καθημερινή}}

In 2011, ISAP SA became a subsidiary company of OASA{{Cite web |date=2012-01-01 |title=ISAP - Athens Piraeus Electric Railways |url=http://www.isap.gr/eng/page.asp?id=42 |url-status=unfit |archive-url=https://web.archive.org/web/20120101152221/http://www.isap.gr/eng/page.asp?id=42 |archive-date=2012-01-01 |access-date=2019-08-29 }} was absorbed, together with TRAM SA, by AMEL SA, which was renamed STASY SA.

The network uses quintuplet and hex tuple railcars to run the routes. The quintuplets are older types and are limited to line 1.

• 8th Generation of 1983 (production line 101-II) and 10th Generation of 1993 (production line146), Quintuplets (2+3), these vehicles often travel together.{{Cite web |title=Αρχειοθετημένο αντίγραφο |url=http://www.isap.gr/page.asp?id=43 |url-status=dead |archive-url=https://web.archive.org/web/20110925235702/http://www.isap.gr/page.asp?id=43 |archive-date=2011-09-25 |access-date=2011-09-25}}
• 11th Generation of 2000 (production line 3101), Sixtuple railcars (3+3).{{Cite web |title=Αρχειοθετημένο αντίγραφο |url=http://www.isap.gr/page.asp?id=43 |url-status=dead |archive-url=https://web.archive.org/web/20110925235702/http://www.isap.gr/page.asp?id=43 |archive-date=2011-09-25 |access-date=2011-09-25}}
• 1th Generation του 2000, Cab triplets in one vehicle. They are available in 3+3 compositions.{{Cite web |date=2021-10-25 |title=Ενίσχυση των δρομολογίων στη γραμμή του ΗΣΑΠ με συρμούς του Μετρό |url=https://www.athenstransport.com/2021/10/isap-syrmoi-metro/ |access-date=2022-01-21 |website=Athens Transport |language=el}} These trains started their use on lines 2 and 3 first.

File:Line 1 map (Athens metro).png

File:Piraeus Station, Athens Metro.jpg

Line 1 connects the port of Piraeus with the northern suburb of Kifissia. It is built to {{RailGauge|sg|al=on}} and is electrified using the 750 V DC, third rail, top contact system, also used by Lines 2 and 3.

From Piraeus the line runs eastwards to Faliro and then north to Moschato, Kallithea, Tavros, Petralona, Thissio, Monastiraki, Omonia, Victoria and Attiki. Between Monastiraki and Attiki the line runs underground. At Monastiraki passengers can change to Line 3 and at Omonia and Attiki to Line 2. From Attiki the line continues north, following the alignment of the old Lavrion Square-Strofyli railway through Patissia, Nea Ionia, Iraklio, Marousi and terminates at Kifissia. At Nerantziotissa station passengers can change to the Athens Suburban Railway, for Athens International Airport.

Line 1 has a physical connection to Line 2 at Attiki station.

According to Transportation Minister Christos Staikouras, in "NK trailers" factory of Volos 14 new Trains are to be prepared, with the first one arriving in November of 2025 in hopes of all of them having been prepared until 2026.{{Cite web |last=ertnews.gr |first=Συντακτική ομάδα |date=2025-01-29 |title=Έρχονται νέοι συρμοί στη Γραμμή 1 του μετρό της Αθήνας |url=https://www.ertnews.gr/eidiseis/ellada/erxontai-neoi-syrmoi-sti-grammi-1-tou-metro-tis-athinas/ |access-date=2025-02-01 |website=ertnews.gr |language=el}}{{Cite web |title=Σταϊκούρας: Aναβάθμιση των 14 συρμών της Γραμμής 1 του Μετρό της Αθήνας - Ο στόχος μέχρι τον Νοέμβριο |url=https://www.bankingnews.gr/politiki/articles/783791/staikoyras-anavathmisi-ton-14-syrmon-tis-grammis-1-tou-metro-tis-athinas-o-stoxos-mexri-ton-noemvrio |access-date=2025-02-01 |website=bankingnews.gr |language=el-gr}}{{Cite web |last=Καραγιάννης |first=Νίκος |date=2025-01-16 |title=Μετρό Αθήνας: "σαφάρι" για την χρηματοδότηση 15 νέων συρμών |url=https://ypodomes.com/metro-athinas-safari-gia-tin-chrimatodotisi-15-neon-syrmon-mechri-to-2027-oi-14-anakainismenoi-syrmoi-tis-grammis-1/ |access-date=2025-02-01 |website=Ypodomes.com |language=el}}

{{routemap

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{{metro|Kifissia}}! !fKBHFa\fextHST~~ ~~ ~~{{grey|Relocated station}}

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{{metro|Tavros}}! !fHST\fextHST~~Plateia Davaki

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}}Since 2008, ISAP S.A., and subsequently STASY S.A., proposed a two-phase northern extension of Line 1 from {{metro|Kifissia}} to Agios Stefanos, via Ethniki Odos (Athinon-Lamias) near Ekali, bringing the Dionysos municipality into the Athens Metro catchment area.

The first phase includes new stations at AOK, Nea Erithrea, Athens Metro and Ethniki Odos, but requires the reconstruction of Kifissia into an underground station. The second phase would be mostly sub-surface, with new stations at Anixi and Agios Stefanos.{{cite web|url=http://www.ethnos.gr/article.asp?catid=22768&subid=2&pubid=1286617|title=Ηλεκτρικός ως τον Αγιο Στέφανο (ISAP to Agios Stefanos)|date=11 July 2008|publisher=Ethnos|language=Greek|accessdate=25 October 2012}}

Since 2020 the project has been decided to consist of an underground part (including a new underground Kifissia station) and the initial extension until Nea Erythrea, with the stations between Agios Stefanos and Nea Erythrea utilising the Suburban railways of OSE, with a further extension towards Varympompi Junction.{{Cite web |last=Βαλσάμη |first=Σοφία |date=2024-11-03 |title=Το Μετρό επεκτείνεται σε όλη την Αττική - Σχέδιο για Γλυφάδα, Καλλιθέα, Μαρούσι και Νέα Ερυθραία |url=https://www.newsit.gr/ellada/to-metro-epekteinetai-se-oli-tin-attiki-sxedio-gia-glyfada-kallithea-marousi-kai-nea-erythraia/4224362/ |access-date=2025-01-31 |website=NewsIT |language=el}}{{Cite web |date=2024-09-10 |title=ΗΣΑΠ: Νέο σχέδιο για επέκταση του Ηλεκτρικού στη Νέα Ερυθραία |url=https://athina-voreia.gr/isap-xekinaei-i-epektasi-tou-ilektrikou-gia-nea-erythraia/ |access-date=2025-01-31 |language=el}}{{Cite web |last=Newsroom |date=2025-02-08 |title=Αυτούς τους σταθμούς μετρό σκέφτονται να επεκτείνουν - Dnews |url=https://www.dnews.gr/eidhseis/ellada/511066/aftoys-tous-stathmoys-metro-skeftontai-na-epekteinoun |access-date=2025-02-09 |website=www.dnews.gr |language=el-gr}}

Plans to extend Line 1 from {{metro|Thiseio}} to the Stavros Niarchos Foundation Cultural Center in Kallithea originated as part of the southern branch of Line 6 in the long-term Athens Metro Future Regulatory Plan (or the Souflias plan){{cite web|title=Attiko Metro pulls the "Souflias plan" out of the drawer|url=https://www.athenstransport.com/2020/10/metro-sxediasmos|website=Athens Transport|access-date=4 October 2022|archive-url=https://web.archive.org/web/20221004205115/https://www.athenstransport.com/2020/10/metro-sxediasmos|archive-date=4 October 2022|language=Greek|date=13 October 2020}} of April 2009: the proposal would have seen trains from the SNFCC to Melissia in the north east, and Idreika in the Piraeus peninsula.{{cite web|title=New Regulatory Plan for Athens and Attica Prefecture|url=http://www.ametro.gr/page/default.asp?id=2673&la=2|website=Attiko Metro|access-date=4 October 2022|archive-url=https://web.archive.org/web/20090528234343/http://www.ametro.gr/page/default.asp?id=2673&la=2|archive-date=28 May 2009|location=Athens|date=13 April 2009|url-status=dead}}{{cite web|title=Regulatory Plan of Attica: Development Plan of Future Metro Lines|url=http://www.ametro.gr/files/pdf/AM_Sxedio_Anaptiksis_Grammon_Metro.pdf|website=Attiko Metro|access-date=4 October 2022|archive-url=https://web.archive.org/web/20091122213635/http://www.ametro.gr/files/pdf/AM_Sxedio_Anaptiksis_Grammon_Metro.pdf|archive-date=22 November 2009|location=Athens|language=Greek|date=April 2009}}

Proposals for this line saw little activity from January 2012 to December 2021,{{cite web|title=Athens Metro Regulatory Plan|url=https://www.ametro.gr/wp-content/uploads/2016/08/AM_Sxedio_Anaptiksis_Jan2012_en.pdf|website=Attiko Metro|access-date=4 October 2022|archive-url=https://web.archive.org/web/20221004205705/https://www.ametro.gr/wp-content/uploads/2016/08/AM_Sxedio_Anaptiksis_Jan2012_en.pdf|archive-date=4 October 2022|location=Athens|language=Greek|date=January 2012}} when it was partially reconsidered as a branch of Line 1 from {{metro|Thiseio}} to the SNFCC, with intermediate stations at Hamosternas, Plateia Davaki, and Lofos Filaretou. Attiko Metro also announced the possibility of a further extension towards Palaio Faliro, along Amfitheas Avenue, instead of Idreika.{{cite web|last1=Rizos|first1=Pavlos|title=Athens Metro: all the new extensions to the West, North and South Suburbs|url=https://ypodomes.com/metro-athinas-oles-oi-nees-epektaseis-pros-dytika-voreia-kai-notia-proastia-deite-tis-perioches-amp-toys-stathmoys/|website=ypodomes.com|access-date=4 October 2022|archive-url=https://web.archive.org/web/20221004183359/https://ypodomes.com/metro-athinas-oles-oi-nees-epektaseis-pros-dytika-voreia-kai-notia-proastia-deite-tis-perioches-amp-toys-stathmoys/|archive-date=4 October 2022|language=Greek|date=16 December 2021}}{{cite web|title=Athens Metro Lines Development Plan|url=https://www.ametro.gr/wp-content/uploads/2022/10/Metro1234_Πετρούπολη-Αχαρνές-Γλυφάδα-Καλλιθέα-Βαρυμπόμπη_Sub-ΣΑ-A3-Eng-2022-09-i.pdf|website=Attiko Metro|access-date=4 October 2022|archive-url=https://web.archive.org/web/20221004155324/https://www.ametro.gr/wp-content/uploads/2022/10/Metro1234_Πετρούπολη-Αχαρνές-Γλυφάδα-Καλλιθέα-Βαρυμπόμπη_Sub-ΣΑ-A3-Eng-2022-09-i.pdf|archive-date=4 October 2022|location=Athens|date=September 2022}}

When the topographical survey was done it was decided that there would be an underground diversion from the station of Thiseio branching out to 3,5km consisting of 4 stations: Ano Petralona, Plateia Davaki, Lofos Filaretou ending at Stavros Niarchos Foundation Cultural Center near Delta Falirou.

In November 2008, ISAP proposed three new stations along the existing Line 1. they were: Kaminia, located next to Kerani Square,{{cite web|title=Tramway works in Piraeus - Phase A'|url=http://www.ametro.gr/files/imagestram/AM_TRAM_Piraeus_Map_Nov12_en_LG.jpg|website=Attiko Metro|access-date=30 March 2025|archive-url=http://arquivo.pt/wayback/20160515150145/http://www.ametro.gr/files/imagestram/AM_TRAM_Piraeus_Map_Nov12_en_LG.jpg|archive-date=15 May 2016|location=Athens|language=en-gb|date=November 2012|url-status=dead}} and between Piraeus and Neo Faliro; Ilissos, between Moschato and Kallithea; and Psalidi, between Iraklio and Eirini.{{cite web|title=Ο ΗΣΑΠ … ανανεώνεται … εκσυγχρονίζεται … επεκτείνεται|trans-title=ISAP … renewed … modernized … expanded|url=http://www.isap.gr/filesup/ISAP_EKSIXRONISMOS.pdf|website=Athens–Piraeus Electric Railways|access-date=30 March 2025|archive-url=https://web.archive.org/web/20091228212229/http://www.isap.gr:80/filesup/ISAP_EKSIXRONISMOS.pdf|archive-date=28 December 2009|location=Athens|pages=4-7|language=el|date=13 November 2008|url-status=usurped}} All three stations were also included in the Souflias plan.

The Souflias plan of April 2009 also included a proposal to extend Line 1 from {{metro|Faliro}} to Drapetsona and Amfiali (in Keratsini), with a new underground station for {{stn|Piraeus}}.

Either by accident or on purpose (e.g. rail suicide) it is unfortunately rather common. On 29 July 2022 a man fell on the tracks of Ano Patissia with the tracks temporarily shutting down as the police and medics were assessing the situation. On 26 May 2024 a person fell on the tracks of line 1 in the station of Nea Ionia where police vehicles and ambulances were sent to analyse the situation, with the tracks shutting down temporarily. On October of the same year the same event happened in a pedestrian bridge near KAT station. On December of the same year the same event happened with a man falling off a pedestrian bridge near Ano Patissia onto the tracks below him where medics were sent to recover him delaying the tracks almost 7 minutes. On 13 January 2025 a 69 year old man fell off the station of Aghios Eleftherios halting the schedules and being found dead by ELAS.{{Cite web |date=2024-04-26 |title=Νέα Ιωνία: Άτομο έπεσε στις γραμμές του ΗΣΑΠ {{!}} LiFO |url=https://www.lifo.gr/now/greece/nea-ionia-atomo-epese-stis-grammes-toy-isap |access-date=2025-01-28 |website=www.lifo.gr |language=el}}{{Cite web |date=2024-10-16 |title=Νεκρός ο άνδρας που έπεσε από πεζογέφυρα στο ΚΑΤ |url=https://www.tovima.gr/2024/10/16/society/isap-ptosi-atomou-apo-pezogefyra-sto-kat-diakopikan-ta-dromologia/ |access-date=2025-01-28 |website=ΤΟ ΒΗΜΑ |language=el}}{{Cite web |date=2024-12-19 |title=Άτομο έπεσε από πεζογέφυρα του ΗΣΑΠ στα Ανω Πατήσια |url=https://www.tovima.gr/2024/12/19/society/ano-patisia-atomo-epese-apo-pezogefyra-tou-isap/ |access-date=2025-01-28 |website=ΤΟ ΒΗΜΑ |language=el}}{{Cite web |date=2025-01-13 |title=Νεκρός ο άνδρας που έπεσε στις γραμμές του ΗΣΑΠ στον Άγιο Ελευθέριο |url=https://www.tovima.gr/2025/01/13/society/isap-ptosi-atomou-stis-grammes-pou-exei-ginei-diakopi-kykloforias/ |access-date=2025-01-28 |website=ΤΟ ΒΗΜΑ |language=el}}

On 16 November 2021 a train near the station of Aghios Nikolaos collided with a group of workers on a machine used for sanding the tracks, killing one and injuring 2 of the workers working there. On 25 September 2024 the tracks between the stations of Neratziotissa and Eirini caught on fire due to dry fallen trees, firefighters were quickly dispatched, the train halted and the passengers quickly got off with no injuries. On 1 January 2025 the first train scheduled for 2025 malfunctioned having its doors on one side of the train open while in motion between the stations of Ano Patisia and Perissos this took place just 2 days after another incident where in the station of Moschato the tracks started releasing an alarmingly dense amount of smoke. The Unionized workers of STASY released a statement saying "Every day that dawns on Line 1 the workers cross their fingers[...]". Just a month later on 31 January in the same station of Moschato the same event happened in the same fashion with officials stating that it may have been caused by a malfunction, most likely, during the use of the breaks.{{Cite web |last=Group) |first=Radiotileoptiki S. A. (OPEN Digital |date=2021-11-16 |title=Εργατικό δυστύχημα στον ΗΣΑΠ: Πώς έγινε η σύγκρουση βαγονιών στον ηλεκτρικό – 1 νεκρός εργάτης και 2 τραυματίες |url=https://www.ethnos.gr/greece/article/183310/ergatikodystyxhmastonhsapposeginehsygkroyshbagonionstonhlektriko1nekrosergathskai2traymaties |access-date=2025-01-31 |website=ΕΘΝΟΣ |language=el}}{{Cite web |date=2024-09-25 |title=Ηλεκτρικός: Φωτιά κάτω από συρμό στη Νερατζιώτισσα |url=https://www.athensvoice.gr/epikairotita/ellada/869508/ilektrikos-fotia-kato-apo-surmo-sti-neratziotissa-anastatosi-sta-dromologia/ |access-date=2025-01-31 |website=AthensVoice |language=el}}{{Cite web |date=2025-01-02 |title=Αθήνα: «Στραβό» ποδαρικό για το μετρό - Άνοιξαν εν κινήσει οι πόρτες συρμού στη Γραμμή 1 |url=https://www.emakedonia.gr/athina-stravo-podariko-gia-to-metro-anoixan-en-kinisei-oi-portes-syrmoy-sti-grammi-1-738122 |access-date=2025-01-31 |website=www.emakedonia.gr |language=el}}{{Cite web |date=2025-01-31 |title=Ηλεκτρικός: Νέο περιστατικό - Καπνοί σε συρμό στον σταθμό του Μοσχάτου {{!}} Ημερησία |url=https://www.imerisia.gr/koinonia/105193_ilektrikos-neo-peristatiko-kapnoi-se-syrmo-ston-stathmo-toy-moshatoy?utm_source=imerisia&utm_medium=sidebar |access-date=2025-01-31 |website=www.imerisia.gr |language=el}}

The spelling of the station names on this table, in English and Greek, are according to the signage. The list also runs from south to north, because the former Athens–Piraeus Electric Railways measured all distances from Piraeus.{{cite web|title=Stations|url=http://www.isap.gr/page.asp?id=44|website=Athens Piraeus Electric Railways|access-date=18 October 2022|archive-url=https://web.archive.org/web/20120117133834/http://www.isap.gr/page.asp?id=44|archive-date=17 January 2012|location=Athens|language=Greek|date=17 January 2012}}

The layout of Line 1 stations have some variety, compared to the other two lines on the system (including the upcoming Line 4). Although most stations have two tracks and two side platforms, four stations ({{metro|Eirini||Irini}}, {{metro|Faliro||Neo Faliro}}, {{metro|Omonia}} and {{stn|Piraeus}}) have a Spanish solution layout of two tracks and three platforms, {{metro|Tavros – Eleftherios Venizelos||Tavros}} has an island platform,{{cite web|title=Station Tavros|url=http://www.isap.gr/eng/station.asp?id=5|website=Athens Piraeus Electric Railways|access-date=18 October 2022|archive-url=https://web.archive.org/web/20090314002353/http://www.isap.gr/eng/station.asp?id=5|archive-date=14 March 2009|location=Athens|date=14 March 2009}} and {{metro|Kifissia}} has a bay platform with a second track on the western side of the platform.{{cite web|title=Station Kifissia|url=http://www.isap.gr/eng/station.asp?id=24|website=Athens Piraeus Electric Railways|access-date=18 October 2022|archive-url=https://web.archive.org/web/20090315005053/http://www.isap.gr/eng/station.asp?id=24|archive-date=15 March 2009|location=Athens|date=15 March 2009}}

{{notelist}}

{{reflist}}

• [http://www.stasy.gr/index.php?id=1&no_cache=1&L=1 Athens Metro official website]

{{Public transport in Athens}}

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Category:Athens Metro lines

Category:Railway lines opened in 1869

Category:1869 establishments in Greece