Priorities when selecting a suitable source or supplier are aspects of safety (e.g. skid/slip resistance), durability and aesthetics, in that preferred order. The criteria stated in A12.3.2 are prioritised primarily for aesthetic purposes and assume safety and durability have been satisfied.
Figures NGA12.4 to NGA12.6 provide guidance as to acceptable treatment of modular patterns in localised reinstatements immediately adjacent to fixed features or boundary features. The principle of an acceptable loss of local pattern is indicated, together with the use of larger cut and shaped pavers, both leading to an improved aesthetic and structural arrangement of the modules within the reinstatement.