National Roads
National Roads Are The Step Below A Motorway. The Vary In Classification, Such As Dual Carriageways. 50% Of The National Road Network Is Primary. National Primary Roads Have Hard Shoulders And Don't Have Large Quality Issues, Such As Gaps And Potholes.
The Secondary Roads Are Also Maintained By The County Council Of Their County, As Primary Roads Are Maintained By The National Roads Authority.
National Primary Roads Are Numbered N1-50
National Secondary Roads Are Number N51-99
N1 Dublin-Northern Ireland Border (A1-M1)
N2 Dublin-Derry (A5 After Border)
N3 Dublin-Donegal (Crosses Border To A509, A46 To Donegal)
N4 Dublin-Sligo
N5 Sligo-Westport
N6 N4 J11-Galway
N7 Limerick-Dublin
N8 Cork-N7 J19 (N7 To Dublin)
N9 Waterford-N7 J11 (N7 To Dublin)
N10 Kilkenny Ring Road
N11 Wexford-Dublin
N12 Monaghan-Belfast (A3)
N13 Sligo (N15)-Derry (A2)-Belfast (A6-M5-M22)
N14 Letterkenny-Strabane (A38)
N15 Sligo-Derry (A38-A5)
N17 Galway-Sligo (N4)
N18 Galway-Limerick (N7-Dublin N20-Cork)
N19 Leaves N18-Shannon Airport
N20 Limerick-Cork
N21 Leaves N20-Tralee
N22 Cork-Tralee
N23 Limerick (N21)-Killarney (N22)
N24 Limerick-Waterford
N25 Rosslare Europort-Cork
N26 (N5-N4)-Ballina
N27 Cork City Center-Cork Airport
N28 Cork-Rignaskiddy
N29 Belview Port Access
N30 Enniscorthy-New Ross (N25 To Waterford)
N31 M50 J14-Dún Laoghaire
N33 Charleville-Ardee
N40 Cork Ring Road
(N50) Dublin Bypass (Designated As M50)
National Primary Roads:
N51 Western Drogheda-Mullingar (N52)
N52 Ardee-West Nenagh (M7) Dundalk-Castleblayney
N53 Dundalk-Castleblayney (A Short Section Of The Road Crosses The Border, Where It Becomes A37)
N54 Monaghan-Cavan (Breif Section Becomes A3)
N55 Cavan-Athlone (N6 Ring Road)
N56 Donegal-Letterkenny
N58 Leaves N26-N5 For Swinford And Castlebar
N59 Leaves N4 (Sligo)-Galway (N16)
N60 Castlebar-Rosscommon
N61 Athlone-Boyne (N4)
N62 Leaves M6 Near Athlone-M8 Near Horse And Jockey
N63 Galway-Longford Town (N5)
N64 Loughrea-Portumna
N66 Leaves N64-Gort (N18)
N67 Kilcorgan-Tarbert (N69)
N68 Kilrush-Ennis
N69 Dock Road (Limerick)-Tralee
Regional Roads
Regional Roads Are The Step Below National Roads, With General Layouts Like National Secondary Roads. Their Quality Is Mainly Poor, With Most Sections Without Road Markings, Sharp Corners And No Cat Eye Lights, Make Their Speed Limit 80 km/h Due To Safety. The Large Majority Pass Through Towns And Villages, And Some Replace A Former National Route (Example: R132 And R448).
Local Roads
Local Roads Fill The Rest Of The Network, And Can Vary Largely In Quality, From Narrow, Rural Lanes (L61381) And Wide, Regional Road Like Classification (L2016). The Reason These Aren't Regional Roads Is Because Of Dangerous, Twisting Bends That Can Have Junctions On Them. Local Roads Mostly Have Large Quality Issues, Such As Old Bridges, Potholes, Overgrowing Ditches And Poor Visibility. Local Primary Roads Are Over 4 Meters Wide, (L1000-L5000) Local Secondary Is Numbered L5000-L9999 And Locsl Teritary Fills In The Rest Of The Network. Local Teritary Roads Are Minor Roads (Mainly Off Local Roads) And Cul De Sacs. Here Is A Few Local Road Numbers And Names
L2008-L2007-L2006 Ballindaggin-Templeshanbo-Kilmyshall-Clohaman-Ferns.
L2017 Killanne-Ballindaggin
L2016 Sliproad Off R730-Bunclody (R746)
L2018 Curragraigue-Coolree
L6139 St. Colemans Park
L61391 Sliproad Off R745-Ballindaggin
L6138 Leaves R702-Ballindaggin
L6140 Leaves L6138-Ballyminane