A very complex problem of the main roundabout projects development concerning the solutions given in the location permit and preliminary design, as well as new knowledge about communal infrastructure is given. Based on the new geodetic survey, subsequent requirements of the audit, investors, and obtained special conditions, it was necessary to adapt the technical solutions of the preliminary design. Particularly demanding work was defining the protection of the construction pit. The solution foreseen by the preliminary design and location permit for the works to be carried out under the traffic could not have survived, because of the technological reasons for the construction of the underpass and the very complex situation with the installations at that location. These facts required a complete suspension of traffic at the site and finding solutions to the temporary traffic regulation around the site. This was an unplanned and very demanding moment, given that the daily traffic at the intersection was around one hundred thousand vehicles a day. The solution to this problem was found in the construction of a temporary road, which conducts traffic through and around the construction site, thus enabling the smooth technological and technical organization of works while simultaneously conducting public and individual traffic to and from the city.

roundabout, underpass, traffic regulation