D120 is the main state road on island of Mljet

Mljet

Mljet is the most southerly and easterly of the larger Adriatic islands of the Dalmatia region of Croatia. The National Park includes the western part of the island, Veliko jezero, Malo jezero, Soline Bay and a sea belt 500 m wide from the most prominent cape of Mljet covering an area of...

 in Croatia

Croatia

Croatia , officially the Republic of Croatia , is a unitary democratic parliamentary republic in Europe at the crossroads of the Mitteleuropa, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Croatia covers ...

 connecting Mljet National Park and resorts on the island to Sobra

Sobra

Sobra is a port village in Croatia. It is connected by the D120 highway and by ferry....

 and the ferry port in the town, from where Jadrolinija

Jadrolinija

Jadrolinija is a Croatian sea shipping company. It is a state-owned company and its main mission is connecting Croatian islands to the mainland by operating regular passenger and cargo transport services...

 ferries sail to the mainland, docking in Prapratno

Prapratno

Prapratno is a port village in Croatia. It is connected by the D414 highway and by ferry....

 and the D416

D416 (Croatia)

D416 branches off to the south from the D414 near Ston towards Prapratno ferry port - providing ferry access to Sobra on island of Mljet and the D123 state road...

 state road. The road is 42.9 km (26.7 mi) 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...

, 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...

 (HC), operator of the road. Substantial variations between annual (AADT) and summer (ASDT) traffic volumes are attributed to the fact that the road connects a number of island resorts to the mainland.

D120 traffic volume
Road	Counting site	AADT	ASDT	Notes
D120	6504 Babino Polje	308	646	Adjacent to the D123 D123 (Croatia) D123 is a state road on island of Mljet in Croatia connecting the main state road on the island to Sobra ferry port, from where Jadrolinija ferries fly to the mainland, docking in Prapratno and the D416 state road...  junction.

Road junctions and populated areas

D120 junctions/populated areas
Type	Slip roads/Notes
	Pomena Pomena Pomena is a village in Croatia. It is connected by the D120 highway.... The western terminus of the road.
	Polače Polače Polače is a village in Croatia. It is connected by the D120 highway....
	L69037 to Blato Blato, Mljet Blato is a village on the island of Mljet in southern Croatia.-References:...  and Kozarica Kozarica Kozarica is a village in Croatia.... .
	Babino Polje Babino Polje Babino Polje is a village in Croatia. With a population of 336 it is the largest settlement on the island of Mljet and it is connected by the D120 state road....
	Sobra Sobra Sobra is a port village in Croatia. It is connected by the D120 highway and by ferry.... D123 D123 (Croatia) D123 is a state road on island of Mljet in Croatia connecting the main state road on the island to Sobra ferry port, from where Jadrolinija ferries fly to the mainland, docking in Prapratno and the D416 state road...  to Sobra Sobra Sobra is a port village in Croatia. It is connected by the D120 highway and by ferry....  ferry port – access to the mainland port of Prapratno Prapratno Prapratno is a port village in Croatia. It is connected by the D414 highway and by ferry....  (by Jadrolinija Jadrolinija Jadrolinija is a Croatian sea shipping company. It is a state-owned company and its main mission is connecting Croatian islands to the mainland by operating regular passenger and cargo transport services... ) and the D416 state road D416 (Croatia) D416 branches off to the south from the D414 near Ston towards Prapratno ferry port - providing ferry access to Sobra on island of Mljet and the D123 state road... .
	Prožura Prožura Prožura is a village in Croatia. It is connected by the D120 highway....
	Maranovići Maranovići Maranovići is one of the oldest villages on Mljet in Croatia. The place is located on eastern part of the D120 highway that runs through the whole island. Olive production is the main occupation.Maranovici also has its parish church of Sveti Anton.... L69070 to Okuklje Okuklje Okuklje is a village in Croatia.... .
	Saplunara Saplunara Saplunara is a village in Croatia. It is connected by the D120 highway.... The eastern terminus of the road.