The failure of natural stone roadway surface on the High Street Edinburgh for The City of Edinburgh Council. The evaluation of early life non-compliance with the M77 for Glasgow City Council; The evaluation of the quality of workmanship and maintenance implications of the natural stone Public Realm works in for Glasgow City Council The evaluation of early life failures of a natural stone surface forming part of the Public Realm Programme in Oxford. The evaluation of the failures of natural stone pavement forming the High Streets in Inverness and Dingwall. The evaluation of failures with Hot Rolled Asphalt surface courses, on behalf of Shell Bitumen.