Motorway services sign
A blue sign for a motorway service area, showing Gwasanaethau; Porth Caerdydd; Cardiff Gate services half a mile ahead.
Services operator: Have a Break.
Franchises listed: Fuel (generic), H.E.N., Tarbuck's, M.R. Smith, Fancy Supermarket, Queen Burger.
We're now on the Cardiff Bypass, and this section - junctions 30 to 32 - opened in 1980, bridging a gap between the sections either side. Cardiff Gate services came much later and were built in a commercial development just off the next junction.