RESERVED

A closure has reserved the zone and does not admit this claimant. Asking for it as part of a new closure fails now and will keep failing until the reservation is taken up or given up, so this is the one refusal where waiting is usually the wrong answer -- see GuidedPathSpace.tryRequestZones and GuidedPathSpace.firstPromisedZone.

Claimant-dependent, which is the whole reason Zone.refusalFor takes one: the same reserved zone admits the holder it was promised to and any vehicle escaping an older reservation.