TTT, Cork has the South Ring (albeit with magic roundabout), the N22, the N20, the N25, the Jack Lynch tunnel and the various N8 bypasses at Glanmire, Watergrasshill etc. It's damn sight better than when I were a lad.
As for the navaids it's true Cat III would be nice but what the hell can they do? The airport's on a hill! What do you think the suburbanites are going to say when they see the works required to make it work - crikey ESB couldn't even build a transmission line across the harbour!