 The seasonal increase traffic volume variations ranges 69% on the busiest, Lučko–Jastrebarsko section to 160% as measured on Sveti Rok–Maslenica section.The summer season traffic volume increase on the motorway is 120%.As of September 2010, there are 26 rest areas operating along the A1 motorway, and additional rest areas are planned along the existing sections of the route and those sections under construction.