 Combined with a second wave of reviews in 1995, under the chairmanship of David Cooksey, the Commission's proposals led to the creation of unitary authorities covering many urban areas of England, including cities like Bristol, Kingston upon Hull, Leicester, Derby, Nottingham, Stoke-on-Trent and Plymouth.Reforms in the rest of Great Britain followed a different course.Following the structural review, the Commission then reviewed electoral arrangements in English local authorities, re-warding based on population changes.