| Country: | NGA |
| Type: | A |
| Route: | 4 |
| Map: | Map of the A4 highway (Nigeria) with labels.png |
| Map Notes: | The A4 highway is indicated in orange. |
| Direction A: | South |
| Direction B: | North |
| Junctions: | |
| Previous Type: | A |
| Previous Route: | 3 |
| Next Type: | A |
| Next Route: | 5 |
The A4 highway is a major north–south route in Nigeria that spans from the southern coast to the eastern inland region, connecting various cities and regions.[1]
The A4 highway starts at the city of Calabar in Cross River State, positioned in the southern part of the country.[2] The A4 then travels northwards, running parallel to the Nigerian-Cameroonian border.[3]
The route includes several key cities and towns:
The A4 highway merges with the A3 highway near the city of Maiduguri in Borno State, providing a vital link between the southern coastal regions and the northeastern part of Nigeria.[4]
The A4 highway intersects with other major routes at various points along its course, facilitating travel and trade across Nigeria. Notable junctions on the A4 include:
The A4 highway connects several major cities and towns in Nigeria, facilitating both intra-city and inter-city transportation. Prominent cities along the A4 route include:
The A4 highway's geographical significance and its role in enhancing connectivity in Nigeria make it a crucial part of the nation's road network.[5]