belgrade, serbia - june 4, 2023: panorama of the glavna ulica street in zemun, belgrade, unpaved during a construction site to

zemun glavna ulica works radovi toku renovation road street chaos beograd belgrade serbia srbija rekonstrukcija reconstruction business industry builder work construction site industrial vehicle equipment machine maintenance renewal engineering repair roadway technology transportation asphalt pavement roadwork serbian building heavy open traffic june 2023: panorama unpaved district