This may be of interest to anyone driving Newport end of the M4. Someone I know who is in the know has sent me this.
“I’d thought I’d better keep you informed of happenings on the M4. There are new average speed cameras installed on both eastbound and westbound carriageways from junction 24 (Coldra) to junction 25a (Cwmbran). They are set at 50mph. Do not exceed this speed limit as you will be likely to have 3 points added to your licence. The gantries are in place now but will not be functional until the 17th (next Monday) so beware and watch your speed.”