The state road D1 ( hr, Državna cesta D1) is a national highway in

Croatia , image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capit ...

. It is a one-lane highway that spans from

Macelj Macelj (; ) is the name of a village and a forest in northern Croatia bordering on Slovenia. There is an official border crossing in Macelj, and the end of the A2 highway. The villages are administratively divided into Gornji Macelj (''Upper''), p ...

border crossing in the north via

Krapina Krapina (; hu, Korpona) is a town in northern Croatia and the administrative centre of Krapina-Zagorje County with a population of 4,482 (2011) and a total municipality population of 12,480 (2011). Krapina is located in the hilly Zagorje region ...

Zagreb Zagreb ( , , , ) is the capital (political), capital and List of cities and towns in Croatia#List of cities and towns, largest city of Croatia. It is in the Northern Croatia, northwest of the country, along the Sava river, at the southern slop ...

Karlovac Karlovac () is a city in central Croatia. According to the 2011 census, its population was 55,705. Karlovac is the administrative centre of Karlovac County. The city is located on the Zagreb- Rijeka highway and railway line, south-west of Zagre ...

Slunj Slunj ( Hungarian ''Szluin'', old German ''Sluin'', Latin ''Slovin'', archaic Croatian ''Slovin grad'') is a town in the mountainous part of Central Croatia, located along the important North-South route to the Adriatic Sea between Karlovac and ...

, Gračac,

Knin Knin (, sr, link=no, Книн, it, link=no, Tenin) is a city in the Šibenik-Knin County of Croatia, located in the Dalmatian hinterland near the source of the river Krka, an important traffic junction on the rail and road routes between Zagr ...

Sinj Sinj (; it, Signo; german: Zein) is a town in the continental part of Split-Dalmatia County, Croatia. The town itself has a population of 11,478 and the population of the administrative municipality, which includes surrounding villages, is 24 ...

, ending in

Split Split(s) or The Split may refer to: Places * Split, Croatia, the largest coastal city in Croatia * Split Island, Canada, an island in the Hudson Bay * Split Island, Falkland Islands * Split Island, Fiji, better known as Hạfliua Arts, enterta ...

. It is long overall. Before the A1 and A2 dual carriage motorways have been completed (in 2005 and 2007 respectively), the D1 was probably the busiest road during the summer in Croatia as it connected the northern border as well as the city of Zagreb with the tourist resorts at the

Adriatic Sea The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Sea) to t ...

. Since then, the traffic has waned significantly, but the D1 remains relevant as an alternative to the tolled highways.

Route description

North of Zagreb the D1 is mostly parallel to the A2 motorway up to the Krapina interchange, connecting to a number of the A2 interchanges directly or via connector roads. It also runs parallel with railway tracks in some sections running through hilly terrain. A part of the D1 state road is concurrent with other routes: the A2 motorway between

Zaprešić Zaprešić () is a town in Hrvatsko zagorje, Zagreb County in Croatia. It has a population of 19,644 inhabitants in the town proper, with 25,223 in the administrative area. The town's metropolitan area, which encompasses the seven neighbouring m ...

and

Jankomir Jankomir () is a neighborhood in Zagreb, Croatia. It is located in the Stenjevec city district in the western part of the city, and is officially referred to as "Stenjevec - jug", with an area of and a population of 8,072. Jankomir is regarded ci ...

interchanges, the A3 motorway between Jankomir and

Lučko Lučko is a settlement in the Novi Zagreb - zapad district of the City of Zagreb, located south of the Sava and southwest of the city center. Lučko is located near the Lučko interchange that connects the A1 motorway, the Zagreb bypass and the ...

interchanges, the D3 state road between the A3 motorway Lučko interchange and

, the D6 state road in Karlovac, the D33 state road in

and the D219 state road in

. Parts of the D1 have been upgraded to expressway (''brza cesta'') status. Currently two sections of the D1 are considered as such, since they comprise dual carriageways or are currently expanded to four traffic lanes: * an urban expressway in

, between the A1 motorway Karlovac interchange and Mostanje * an expressway in and near

, between the A1 motorway Dugopolje interchange and Bilice roundabout in Split itself The northern part of the D1 in Karlovac is actually a slightly lower road category because there are several intersections with traffic lights which slow the traffic down. Parts of the road in

Lika Lika () is a traditional region of Croatia proper, roughly bound by the Velebit mountain from the southwest and the Plješevica mountain from the northeast. On the north-west end Lika is bounded by Ogulin-Plaški basin, and on the south-east by ...

have

climbing lane Climbing lanes or crawler lanes are a roadway lane design. They allow slower travel for large vehicles, such as large trucks or semi-trailer trucks, ascending a steep grade. Since climbing uphill is difficult for these vehicles, they can travel in ...

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

Hrvatske ceste Hrvatske ceste (lit. ''Croatian roads'') is a Croatian state-owned company pursuant to provisions of the Croatian Public Roads Act ( hr, Zakon o javnim cestama enacted by the Parliament of the Republic of Croatia. The tasks of the company are def ...

, a state-owned company.

Traffic volume

Traffic is regularly counted and reported by

, operator of the road. The D1

AADT Annual average daily traffic, abbreviated AADT, is a measure used primarily in transportation planning, transportation engineering and retail location selection. Traditionally, it is the total volume of vehicle traffic of a highway or road for a y ...

and ASDT (average summer daily traffic) figure variations observed south of

are attributed to tourist traffic to various regions of

coast in

Dalmatia Dalmatia (; hr, Dalmacija ; it, Dalmazia; see #Name, names in other languages) is one of the four historical region, historical regions of Croatia, alongside Croatia proper, Slavonia, and Istria. Dalmatia is a narrow belt of the east shore of ...

region of

Croatia , image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capit ...

Road junctions and populated areas

Maps

Sources

External links