 | ||||
|---|---|---|---|---|
 Steeply rising ground alongside the A4054 near Tongwynlais | ||||
| Route information | ||||
| Length | 30.0 mi (48.3 km) | |||
| Major junctions | ||||
| South end | Llandaff | |||
 A4119 A470 A468 A473 A4058 A472 A4060 A4102 | ||||
| North end | Merthyr Tydfil | |||
| Location | ||||
| Country | United Kingdom | |||
| Constituent country | Wales | |||
| Primary destinations | Cardiff | |||
| Road network | ||||
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The A4054 is an A Road connecting Llandaff, Cardiff with Merthyr Tydfil in Wales and mostly follows the former route of the A470.