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We want to make A4042 corridor safer and more efficient for all road users.

Region / County:
South East Wales
Start date:
To be decided
End date:
To be decided
First published:
6 July 2023
Last updated:


Why we are doing it 

The current corridor:

  • has a high collision rate
  • has limited opportunities to cycle or walk safely
  • has limited public transport provision

This project is listed in our national transport delivery plan.

Current progress

This project is at stage 2 of the Welsh Government Transport Appraisal Guidance (WelTAG).

It was previously assessed as part of a corridor stage One study. That study included the A4042 between Pontypool and M4 with A4051 through Malpas.

This stage involves:

  • establishing a preferred solution
  • environmental surveys
  • assessment of the impact of improvements
  • consulting with local stakeholders


WelTAG stage 1 published: winter 2021
WelTAG stage 2 (Interim) published: spring 2022
WelTAG stage 2 (final) published: expected 2023, tbc
WelTAG stage 3 published: expected 2024 to 2025, subject to funding

Next steps

We will complete the final WelTAG stage two and publish it by spring 2024.

What we are doing 

We are preparing a WelTAG stage 2 bridging report. This will ensure that the scheme complies with the roads review recommendations and that project objectives are aligned to the 4 future tests for road building.

Solutions from the stage 2 appraisal which align with our Transport Strategy will then progress to WelTAG stage 3.

Map showing sections of A4042 and A472 that we plan to improve
Map showing sections of A4042 and A472 that we plan to improve


We have consulted key stakeholders and local businesses at each stage of the WelTAG process. We will continue to do so for subsequent WelTAG stages.