D301 is a state road connecting A9 with Novigrad and D21

D21 (Croatia)

D21 is a state road connecting the Kaštel border crossing and Buje, as well as A9 motorway via D510 state road. The road is long.The road provides connections to several towns and cities in central and western Istria, most notably to Grožnjan, Svetvinčenat and Pazin via roads connecting to...

 state road. The road is 17.0 km long.

The road, as well as all other state roads in Croatia, is managed and maintained by Hrvatske ceste

Hrvatske ceste

Hrvatske ceste is a Croatian state-owned company pursuant to provisions of the Croatian Public Roads Act , the county and local roads are managed by county authorities, while the motorways are managed by Croatian Motorways Ltd and other concessionaires.The company is currently administered by a...

, state owned company.

Traffic volume

Traffic is regularly counted and reported by Hrvatske ceste

Hrvatske ceste

Hrvatske ceste is a Croatian state-owned company pursuant to provisions of the Croatian Public Roads Act , the county and local roads are managed by county authorities, while the motorways are managed by Croatian Motorways Ltd and other concessionaires.The company is currently administered by a...

, operator of the road. Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the fact that the road connects A9 motorway carrying substantial tourist traffic to Novigrad, a major summer resort.

D301 traffic volume
Road	Counting site	AADT	ASDT	Notes
D301	2720 Bužanija south	5,316	9,140	The only published traffic counting site on D301.

Road junctions and populated areas

D301 junctions/populated areas
Type	Slip roads/Notes
	D21 D21 (Croatia) D21 is a state road connecting the Kaštel border crossing and Buje, as well as A9 motorway via D510 state road. The road is long.The road provides connections to several towns and cities in central and western Istria, most notably to Grožnjan, Svetvinčenat and Pazin via roads connecting to...  to Krasica and Buje Buje Buje is a town situated in Istria, Croatia's westernmost peninsula, population 2,979 .Buje was known as the "sentinel of Istria" for its hilltop site located inland from the Adriatic sea. It still commands an excellent panorama. Buje has a rich history; traces of life in the region date back to... . Eastern terminus of the road.
	Nova Vas: L50042 to Brtonigla Brtonigla Brtonigla is a village and municipality in the north-western part of Istria, Croatia, 6 km southwest of Buje; elevation 141 m. It is close to the A9 motorway. Chief occupations include farming, viniculture and vegetable growing.... L50043 to Mirna Mirna River (Croatia) The Mirna is a river in Istria, Croatia. It is Istria's longest and richest river, being long and having a basin covering an area of . It rises near Buzet, and empties into the Adriatic Sea near Novigrad.-External links:* *...  Valley
	Nova Vas interchange: A9 motorway to Pula Pula Pula is the largest city in Istria County, Croatia, situated at the southern tip of the Istria peninsula, with a population of 62,080 .Like the rest of the region, it is known for its mild climate, smooth sea, and unspoiled nature. The city has a long tradition of winemaking, fishing,...  (to the south) and to Umag Umag Umag is a coastal city in Istria, Croatia.The city hosts the yearly Croatia Open ATP tennis tournament on clay courts.-Geography:It is the westernmost city of Croatia, and the municipality includes Savudrija which is westernmost point of Croatia....  (to the north).
	Ž5070 to Brtonigla Brtonigla Brtonigla is a village and municipality in the north-western part of Istria, Croatia, 6 km southwest of Buje; elevation 141 m. It is close to the A9 motorway. Chief occupations include farming, viniculture and vegetable growing....
	Bužinija Bužinija Bužanija is a village in Croatia....
	Novigrad: Ž5002 to Antenal and Tar-Vabriga Tar-Vabriga Tar-Vabriga is a municipality in the Istria County, Croatia, approximately 7 km north of Poreč. The municipality has been established in 2006.-References:... to the south and Dajla and Umag to the north Western terminus of the road.