- Period (Currency): Restricted. The tradition of building and using multiple ditch systems appears from present evidence to have spanned between 200 and 400 years, broadly the 1st century BC to the 2nd/3rd centuries AD. Individual sites were used and modified throughout most of this period.
- Rarity: Very Rare. Only about six examples are known, although this number may increase slightly where further fieldwork establishes the relationship between other enclosure forms and linear dykes.
- Diversity (Form): Medium. Given the lack of excavation, assessment of diversity is problematic. Here it is suggested that on morphological grounds, two types can be identified.
- Period (Representativity): High. Multiple ditch systems are one of a fairly restricted range of monument classes known for the later prehistoric period. They also yield a wide range of cultural material, and are currently regarded as key features of the settlement hierarchy in the areas where they are found.
Assigning scores to these criteria following the scheme set out in the Monuments Evaluation Manual, multiple ditch systems yield a class importance value of 33. This places the class roughly halfway up the list of possible values (max=64), reflecting their rarity and representativity.