CPK and PLK launch Integrated Railway Network (ZSK) project, Poland October 5, 2025 | Europe News, News Centralny Port Komunikacyjny (CPK) alongwith PKP Polskie Linie Kolejowe (PLK), under the Ministry of Infrastructure, have initiated a planning stage for Poland’s Integrated Railway Network (ZSK). It i... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password