Motorway gantry sign
A gantry spanning the motorway with blue overhead signs indicating one lane exiting and two continuing ahead, and the following text.
Left lane destinations: A4051; [Hollow triangle diversion symbol] Cwmbran; Casnewydd; Newport; Caerleon .
Right-hand two lanes destinations: London; Cas-gwent; Chepstow M4 .
Junction number: 26.
The third lane ends here at Malpas Road, one of the impressive number of dual carriageways that head into this compact city. Beyond here the motorway has two lanes, as it did when it was built in the mid-1960s.