M4 (Warsaw)


The M4 line is the planned fourth line of the Warsaw Metro. It will have a length of approximately and will consist of 23 stations, linking Wilanów with Tarchomin. It will also include a new metro depot, STP Polfa.
The line will be an important element of the metro network and the overall transport system in Warsaw. According to initial findings, it is expected to be used by up to 30,000 people per hour. It will connect the districts of Białołęka, Bielany, Żoliborz, Śródmieście, Wola, Ochota, Włochy, Mokotów, and Wilanów, as well as enable interchange to M1, M2, M3, and M5 metro lines and the main public transport lines: trams, buses, and railways.
Upon its completion, M4 is planned to be the longest line in the Warsaw Metro system.

History

The line was initially announced in February 2023 by the mayor of Warsaw, Rafał Trzaskowski, in the city's plan to construct five metro lines by 2050.
On March 14, 2024, Warsaw City Council allocated 56 million PLN for pre-design works for the M4 line. On March 19, a tender for the works was issued. In September 2024 the contract for the pre-design works was signed, with the works expected to be finished by 2027.
Construction of the M4 line is expected to take place at the same time as the M3 line, starting somewhere in the 2030s.

Stations

The initial station plan for the line was shared on the Warsaw Metro website:
CodeName
G01Wilanów
G02Sobieskiego
G03Patkowskiego
G04Dolina Służewiecka
G05Wilanowska
G06Smoluchowskiego
G07Rondo Unii Europejskiej
G08Służewiec
G09Żwirki i Wigury
G10Wiślicka
G11Bitwy Warszawskiej 1920
G12Plac Narutowicza
G13Plac Zawiszy
G14Rondo Daszyńskiego
G15Okopowa
G16Cmentarz Żydowski
G17Rondo Radosława
G18Rydygiera
G19Marymont
G20Ruda
G21Płochocińska
G22Obrazkowa
G23Myśliborska
STP Polfa