The A2 motorway is a motorway in the Hrvatsko Zagorje region of northern Croatia, connecting Zagreb to the Macelj border crossing and Slovenia. The A2 motorway is part of the European route E59 and the Pan-European Corridor Xa. The motorway spans 59.2 kilometres (36.8 mi) between the Slovenian border and the Jankomir interchange within the Zagreb bypass, providing road connections to a number of cities and towns besides Zagreb, including Krapina, Zabok and Zaprešić. All sections of the motorway, except the northernmost one between the Macelj border crossing and Trakošćan, and the southernmost one near Zagreb, are tolled, using a closed toll collection system.

Highways in Croatia are the main transport network in Croatia. The Croatian classification includes several classes of highways:The main motorway routes are prefixed with an A and accompanied by one or two digits. They are controlled-access highways with tolls using a ticket system. Expressways are toll-free limited-access highways with grade-separated intersections and fast speed limits. They are similar to the motorways, but are not always dual carriageways and may have no emergency lanes. Their speed limit is always lower than the motorways. They either have standalone designations or are parts of non-motorway state routes, such as the D prefixed highways described further below. Roads dedicated for motor vehicles, which is another category of limited-access highways. They usually have multiple lanes and separated carriageways but may have at-grade intersections. This class of roads has no specific numbering convention, only a dedicated traffic sign. State routes or portions thereof may be designated in this manner. An example is Jadranska Avenue in Zagreb, designated as Ž1040, a county road.