Add Detailed Aggregate

When building a road model it is possible to add materials and aggregates/material fractions to the features that are produced. Normally these informations are added to the appropriate attributes on the features, but could also be added add generic attributes.

Here we see the attributes:

• aggregate > materialNature

• aggregate > detailedMaterialDescription

• aggregate > userDefinedMaterialNature

Note:  For the StructLayer feature the 'materialNature' already has some info on the default conversionrule for road tasks.

'detailedMaterialDescription' would typically hold the information for the aggregate fractions.

'userDefinedMaterialNature' would hold the information for a user specified materialNature. Typically a type of materialNature not defined by the Feature Catalogue.

Scroll to the conversion rule for 'StructLayer' and select it.

Note:  If the road task is created with an updated conversion file (NP2020 and newer) will have these layer split in separate rules.

The predefined mappings are based on the VIPSSURFACENO attribute (1) that comes from the roadmodel.
For each pavement layer that is produced they hold the information for which pavement layer they belong to (2). Based on this information it is possible to set what 'materialNature' to use (3).

Note:  If one mapping is not set by the user, f.ex leaving out a mapping for VIPSSURFACENO = PAVEMENT_BINDER_COURSE_1, then the 'detailedMaterialDescription' for binder course 1 will be 'PAVEMENT_BINDER_COURSE_1 which would be strange.

If only a few of the layers are having 'detailedMaterialDescription' added to them, we recommend making separate rules in the conversion file for these features, because in NP21 all pavement layers are handled in one rule.

If the road task is created with an updated conversion file (NP2020 and newer) will have these layer split in separate rules already.