road croatia kilometre long north south state road croatia short section european route northern terminus route located croatia border connects italy route north route generally parallel motorway form junctions directly short towns served directly southern terminus route found city southern tip road state roads croatia managed maintained state owned company road carries annual average daily traffic vehicles traffic volume increases vehicles summer road tourists region southernmost portion road significantly carries suburban traffic classical antiquity western route classical antiquity roads area declined middle ages subsequent division development road system 19th century french empire started road construction including route largely followed present day route route second world war separate state road assigned present route number route description kilometre state road situated following general north south alignment route runs predominantly agricultural land small settlements route segment road predominantly surrounded forests southernmost kilometres miles route runs suburbs largest city region extends south border crossing croatia situated north terminus route european route connects cities italy section route follows overall eastern orientation metres feet away borderline reaches border crossing metres feet grade intersection traffic serves connector motorway turns southwest village approximately kilometres away north turns south proceeding city located kilometres miles road forms grade intersections provides route border crossing town interchange motorway grade intersections county roads city south route turns southeast hilly terrain reaches valley approximately kilometres miles away forms roundabout junction north bank river roundabout connects links town interchange route crosses continues kilometres southeast forms intersection road route turns south reaches intersection connecting kilometres village kilometres miles south crossing connects extending motorway located west road junction leading east intersection built partial cloverleaf interchange approximately kilometres south route reaches village proceeds south interchange partial cloverleaf interchange kilometres south turns southwest adriatic_sea kilometres point forms grade intersection road situated west following junction turns southeast follow valley approximately kilometres route reaches grade separated intersection ramp partial cloverleaf turn links interchange motorway coastal city south intersection runs south generally flat terrain consists relatively straight sections compared northern parts route kilometres south junction forms grade intersection kilometres enters town intersects road linking south turns southeast approaches reaches short connector north interchange motorway kilometres road kilometres reaches city road junction connecting significant junctions kilometres miles south interchange south route proceeds kilometres miles south reach connecting village reaches outskirts kilometres route forms grade junction road kilometres miles junction serves southern terminus route found roundabout metres feet south connects history classical antiquity road built emperor ran area spanned modern followed north south route western connecting present day roman road extended northeast modern day area city following decline roads region deteriorated known existed region year east west route spanning road transport region lost significance peninsula divided monarchy route rebuilt french empire french captured entire region venice upgrades regional road network continued austrian empire acquired congress vienna road network expanded degree change century half significant improvement region roads paving road 1930s second world war roads sustained significant damage war road trunk road tracing adriatic_sea coast yugoslavia route major addition road network peninsula completion section expressway system designed replace route main road route yugoslav designation retained independence croatia spanning border designated state road october company owned government croatia tasked maintenance road traffic volume volume traffic flowing road measured traffic counting stations distributed route traffic counting stations work continuously rest operated intermittently road lost significant portion north south traffic motorway gradually extended running parallel route traffic counting site average summer traffic volume declined vehicles day recorded vehicles major intersections entire route sources public roads classification regulation motorway markings croatia
D21 road (Croatia)