 South of the Bosiljevo 2 interchange the first major drop of traffic volume is recorded on the A1 motorway, due to traffic transferring to the A6 motorway towards Rijeka.Other similar changes of the traffic volume are registered near Zadar (served by Zadar 1 and Zadar 2 interchanges) and Split served by Dugopolje interchange.Substantial variations observed between AADT and ASDT are normally attributed to the fact that the motorway carries significant tourist traffic.