sentences:  Most of this increase is attributed to the introduction of a closed toll system along the routes, replacing an open toll system in which a toll was charged only at the Mirna Bridge (along the A9 motorway) and the Učka Tunnel.In 1999, the Croatian government negotiated amendments to the BINA Istra concession contract.These amendments allow the government to determine tolls along the A8 and A9 motorways, and the government decided to eliminate tolls on traffic flowing along the two-lane sections of the routes; to compensate for this loss of income, the government subsidizes BINA Istra – for instance, in 2012 it is expected to receive a 165 million kuna ( million) subsidy.