 This problem used to be further exacerbated before 2009 when A6 still had slow semi-highway parts on the Rijeka-Bosiljevo route.This section will remain congested at peak intervals until eventual completion of A7 motorway between Rupa and Žuta Lokva.Since the parallel A1 motorway currently terminates at the Ploče interchange, approximately northwest of Ploče, tourists heading south generally switch to Adriatic Highway.