 Just north of the Sajam is a highway and one of the largest interchanges in Belgrade, Mostarska Petlja, and a Gazela bridge over the Sava.Additionally, the tram lines are passing through the boulevard, too, and the very first tram line in Belgrade passed through this area (Gospodarska Mehana), connecting Kalemegdan and Senjak.The fairground was built as the contemporary urban complex, with the accent of the entire composition of object being on three exhibition pavilions under the domes which are interconnected via enclosed walkways.