YATIFY eTENDER CLASSIFICATION RULES

Purpose
-------
Turn OCDS tender/release descriptions into explainable civil-engineering
categories while preserving the original description.

Road / pavement evidence examples
---------------------------------
High asphalt-intensity:
- asphalt
- hot mix
- premix
- asphalt overlay
- milling and overlay

Medium asphalt-intensity:
- road rehabilitation
- pavement rehabilitation
- road widening
- road upgrade
- road construction without an explicit asphalt mix term

Low asphalt-intensity:
- generic road / roadworks wording without an explicit surfacing signal

Bituminous treatment kept separate:
- reseal
- slurry seal
- chip seal
- surface treatment
- bituminous seal

Controls
--------
- professional engineering/advisory tenders can remain in Civil Tender
  Intelligence but do not contribute to the asphalt works-demand proxy.
- original matched evidence is retained with the classified record.
- the model does not infer supplier inventory or plant spare capacity.
- classifier performance must be scored against a human-labelled validation
  sample after enough real OCDS records have been imported.