@Powderhorn these seem only temporary blocks (at least declaratively). And as far as I remember, no state imposed border checks along its entire border. So you could i.e. bypass the blocked border by just changing your route I think.

Anyway, the fact that we, bulgarians, and by extension also greeks and hungarians had official border checks made things much more dificult in the region. One prime example would be the fact that many Romanians go on holidays in Greece or Bulgaria because the prices and conditions are terrible in our the sea resorts. Hungarians also shop in Romania because of the lower prices. And examples can continue.