sentences:  The tunnel carries the route east, through part of the Učka mountain range.It represents the end of the easternmost section of the Istrian Y system (comprising the A8 and the A9 motorways) where a toll is charged; consequently, there are toll plazas adjacent to both tunnel entrances.East of the tunnel, the route runs northeast to the Matulji interchange with the A7 motorway and the eastern terminus of the A8 motorway.