The A4054 is an A Road connecting Llandaff, Cardiff with Cefn-Coed-y-Cymmer in Wales.Settlements served by the road include: LlandaffLlandaff NorthWhitchurchCorytonTongwynlaisTaff's WellRhydyfelinTreforestPontypriddAbercynonQuakers YardMerthyr ValeTroedyrhiwPentrebachMerthyr TydfilCefn-Coed-y-CymmerSources OS 1:25000 (as accessed via Bing Maps)