After the railway was closed under the Beeching Axe, the council took the opportunity to provide a better road link between Hirwaun and Glynneath, and so bypassed the old Aberdare road by building an extension to A465 road which utilised most of the trackbed of the abandoned railway. The road has now been identified by the government as being in need of improvement due to restricted traffic flow and poor visibility. The current plans in place are stated by the government to be completed by 2024.