This is a list of roads designated A9.
Spaghetti junction is a nickname sometimes given to a complex or massively intertwined road traffic interchange that is said to resemble a plate of spaghetti. Such interchanges may incorporate a variety of interchange design elements in order to maximize connectivity.
A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms include throughway and parkway. Some of these may be limited-access highways, although this term can also refer to a class of highways with somewhat less isolation from other traffic.
The A9 motorway is a north–south motorway in Croatia, with a length of 78.3 kilometres. Beginning in Pula, the largest city on the Istrian peninsula, it runs north to the Croatian motorway and expressway network at the Kanfanar interchange. Here it meets the A8 motorway, forming the Istrian Y road system. The A9 continues north from here to the Kaštel and Plovanija border crossings into Slovenia. The motorway represents a significant north–south transportation corridor in Croatia and is a part of the European route E751. The motorway's national significance is reflected in the positive economic impact on the cities and towns it connects, as well as its importance to tourism in Croatia. Importance of the motorway for tourism is particularly high during summer tourist seasons, when traffic volume increases by more than 80%.
The European route E751, or E751, as defined by the Declaration on the Construction of Main International Traffic Arteries of 1975, and subsequent documents which amended the treaty, is an east–west Class-B branching European road route. Originating in Rijeka, Croatia, where it diverges from European route E61 before passing through the Kanfanar interchange, the route connects Pula, Rovinj, Poreč and Umag in Croatia with Koper in Slovenia. The route provides a high-performance road link in Istria and Slovenian Littoral. Unlike most routes, the E751 centers on the Kanfanar interchange and has three arms, each extending to Rijeka, Pula and Koper. The total length of the route, including all the route arms, is 160 km (99 mi).
Highways in Croatia are the main transport network in Croatia. The Croatian classification includes several classes of highways:
Motorways in Serbia are called auto-put, a name which simply means car-road. Roads that are motorways are categorized as state roads of IA category and are marked with one-digit numbers. Motorways in Serbia have three lanes in each direction, signs are white-on-green, and the normal speed limit is 130 km/h (81 mph). They are maintained and operated by the national road operator company JP "Putevi Srbije".
Adriatic–Ionian motorway or Trieste-Kalamata Highway or the Blue Corridor, is a future motorway that will stretch along the entire eastern shore of the Adriatic and Ionian seas, spanning the western coast of the Balkan peninsula from Italy in the north through Slovenia, Croatia, Montenegro, Albania to Greece in the south.
The Kanfanar interchange is a cloverleaf interchange west of Kanfanar, Croatia. The interchange represents the western terminus of the A8 motorway and it connects the A8 route to the A9 motorway representing major a link in the Croatian motorway system. The interchange represents a junction of three arms of the European route E751.