(ANSA) - BELGRADE, APR 23 - The long weekends of April 25th and May 1st will result in a slight increase in traffic flows, according to forecasts from the concessionaire Alto Adriatico Autostrade. According to forecasts, traffic on the A4 motorway (Venice-Trieste) will increase in both directions beginning Wednesday morning. In the afternoon, there may be queues or delays at the Trieste - Lisert barrier. The same situation could occur on Thursday, April 25th, in the morning on the Terraglio - A57/A27 junction towards Trieste, near the seaside junctions and again at the Lisert barrier. The situation will improve beginning in the afternoon, thanks to a ban on the circulation of heavy vehicles, which will be in effect from 09:00 to 22:00. On Friday morning, April 26, heavy traffic is expected on the A4 towards Trieste. On May 1st, greater traffic flows will resume. Starting in the morning, the junctions leading to the seaside resorts will become congested again, and traffic will be heavy, particularly along the road from Trieste to Venice. On the same day, a new stop for heavy vehicle transit is scheduled from 09.00 to 22.00. On Friday the 3rd, possible queues and delays are expected at the Trieste-Lisert barrier in the afternoon. (ANSA).