A
High-quality dual carriageway (HQDC) is a category of road in
Ireland. It is an all-purpose
dual carriageway road type built to near
motorway standards, but without motorway classification or motorway restrictions. High-quality dual carriageways have full
grade-separated access and do not have junctions with minor roads. Such roads in the Republic of Ireland have been built as part of the 2000-2006 and 2007-2013
National Development Plans, including interurban routes from Dublin to other cities.