R103 road (Ireland)

The R103 road is a regional road in north Dublin, Ireland, passing through Finglas, between Ballymun and Glasnevin, then passing Donnycarney before reaching Killester at the Howth Road. A major stretch of the road forms Collins Avenue.
The official description of the R103 from the "Roads Act 1993 (Classification of Regional Roads) Order 2012" reads: