useCondition

useCondition determines the accessibility requirement for selecting a solution tier during resource scheduling. It is the rule field of a useObject — the value carried by useStby, useVoluntary, useExtended and useSurge on a stop type, which pairs the rule with the context-space thresholds that also gate the tier.

Options

Condition	Meaning
NEVER	The solution tier is directly inaccessible via this stop.
NOSOLN	Accessible only when the stop cannot be resourced through economical alternatives.
WAITING	Accessible if the resource is WAITING to sign on (typically ST_SURGE).
CLOSER	Accessible when the solution is significantly closer than alternatives (per useCloserMargin).
LATE	Accessible if the alternative solution incurs positive delay costs.
EARLIER	Accessible when the solution provides an earlier arrival than the alternative.
SOLVE	Accessible when the stop is the primary focus of the next optimisation step (not when booking new projects).
INIT	Accessible when booking a new project for immediate service (not for future appointments).
APPT	Accessible at any time.
ALWAYS	Synonym for APPT.

Hierarchy

The options are hierarchical: each level includes all options above it. For example, selecting CLOSER also enables WAITING and NOSOLN.

Related

• useObject — the object the rule sits in
• stopParamsObject
• Concepts