https://www.agerpres.ro/economic-intern/2019/02/03/interviu-andrei-creci-stb-cand-se-va-circula-la-standarde-europene-poate-ca-atunci-se-va-pune-in-discutie-o-marire-a-tarifelor-la-titlurile-de-calatorie--251671 Cand se va circula la standarde europene] In total, the Metrorex system is 71 kilometers long and has 51 stations.