The remaining roads are local roads.
National Roads have been sub-divided into National Primary and National Secondary Routes. Regional roads are also referred to as Regional Main Roads. Local roads incorporate both county and urban roads. These are sub-divided into primary, secondary and tertiary.
Primary Local Roads: Roads carrying significant traffic arising from Tourism, Industry, Agriculture or Forestry.
Secondary Local Roads: Roads of local or seasonal importance to rural developments.
Tertiary Local Roads: Remote mountain and bog roads and cul-de-sacs.
More Information on the Road Network
Department of Transport, Tourism & Sport