Grodzisk Mazowiecki–Zawiercie railway

Centralna Magistrala Kolejowa
Włoszczowa Północ Station
Overview
StatusOperational
OwnerPolish State Railways
LocaleGrodzisk Mazowiecki, Opoczno, Włoszczowa, Zawiercie
Termini
Stations29
Service
TypeInter-city rail line
SystemInterCity and EuroCity
Services1 main
Operator(s)PKP Intercity
Daily ridership(est.)?
History
Opened1977
Technical
Line length224 km
Character2 track main line
Track gauge1,435 mm (4 ft 8+12 in)
Electrification3 kV DC
Operating speed
  • 200 km/h (125 mph)
  • Planned:
  • 250 km/h (155 mph)
Route map

The Grodzisk Mazowiecki–Zawiercie railway better known as the Central Rail Line (Polish: Centralna Magistrala Kolejowa, CMK), designated by Polish national railway infrastructure manager PKP Polskie Linie Kolejowe as rail line number 4 (Polish: linia kolejowa nr 4), is a 224 km (139 mi) long railway line in Poland between Zawiercie outside the Katowice urban area and Grodzisk Mazowiecki in the suburbs of Warsaw.

The line was originally built for freight transport, but now carries mostly InterCity and EuroCity long-distance passenger services from cities in the southern part of the country such as Katowice, Kraków, Wrocław, Opole and Częstochowa to Warsaw.