M4 roadworks?

Question

taking the car out west but i hear theres major road widening works on the M4 round cardiff. have u driven it recently/whats it like any good roadworks websites?

Answer 1

The whole length of the M4 between Newport and Cardiff is restricted to 50 m.p.h. (contraflow). Beware several speed detection cameras, especially approaching Cardiff Gate exit. Try leaving the motorway for the A48 dual carriageway  at Newport Jcn 30, this brings you to the Gabalfa interchange with the A470, go north 3 miles to rejoin the M4 at Coryton after the end of the roadworks.