The only high-speed rail line (though by most definitions, real high-speed rail only includes speeds over 200 km/h) in central-eastern Europe is the Central Rail Line (Poland), "Centralna Magistrala Kolejowa" (CMK). It has a length of , and was built in 1971–1977; it links Warsaw with Kraków and Katowice. Most trains on the CMK operate at speeds up to , but since December 2014 new Alstom Pendolino ED250 trains operate on a 90 km section of the CMK at , and improvements under way should raise the authorized speed to on most of the line. In test runs on the CMK in November 2013 a new Pendolino ED250 train set a new Polish speed record of .