Parse the 1135 forbidden airway segments in RAD Annex 2B (rows with
Airway/From/To + "NOT AVBL FOR TFC") into structured ForbiddenSeg records
(FL band + arrival/departure applicability), and route around the ones
that apply to a flight from the start:
- core::rad: ForbiddenSeg + RadData.forbidden_segs + forbidden_segments(
adep, ades, fl) -> applicable (airway,from,to) triples.
- rad crate: parse_forbidden_segments() wired into parse(); rad-tool
`forbidden [ADEP ADES FL]` to inspect.
- graph: seg_key() encodes a segment ban into the existing avoid channel;
build_avoiding skips those segments. discover seeds the avoid set with
the flight's Annex-2B bans before generating the airway candidate.
Measured: no regression (coverage 4/10 unchanged on the batch) — this is
the *forbidden* half. The coverage mover is mandatory routing (PROF205:
"must route via X"), which pure avoidance can't provide; that's phase 2.
49 tests green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Alexandre
62cee15549