Police are appealing for witnesses following a single vehicle collision on a slip road leading to the A55 from the Black Cat roundabout at Glan Conwy at 1.15pm on Thursday May 27.
The grey Vauxhall Vectra was travelling eastbound. The male driver, 52, was pronounced dead at the scene.
Anyone with information is asked to call police on 101, if in Wales, or 08456071001 (Welsh line) 08456071002 (English line).