Three defined Trans – European corridors exist running on the Hungarian Network:

Orient / East-Med Corridor, from the Slovakian to the Romanian border, via Budapest.
Mediterranean Corridor, from the Croatian border north-east bound to the Ukrainian border, via Budapest.
Rhine-Danube Corridor, from the Slovakian border to Budapest. Then there are two branches, one to Romania (parallel to the Orient – East Med corridor) and the other to Croatia and Serbia.