TODS-I502

Blocks have no vehicle assignment

INFO

Needs a companion GTFS feed. Opt-in: off by default, enable with --enable coverage or --enable TODS-I502.

Some blocks in the companion GTFS feed have no row in vehicle_assignments.txt, so no vehicle is assigned to operate them. Informational: vehicle assignments are optional, but unassigned blocks may signal an incomplete export.

Spec reference: https://tods-transit.org/spec/#vehicle_assignmentstxt