ServiceCalendarFrame

A minimal ServiceCalendarFrame must be present in all timetable files.

Table: ServiceCalendarFrame

Sub	Element	Usage	Card	Type	Description	Note
	@id	mandatory	1..1	xsd:string	Attribute id
	@version	mandatory	1..1	xsd:string	Attribute version
	validityConditions	mandatory	1..1	validityConditions_RelStructure	VALIDITY CONDITIONs conditioning entity.
+	AvailabilityCondition	mandatory	1..1	AvailabilityCondition	VALIDITY CONDITION stated in terms of DAY TYPES and PROPERTIES OF DAYs.	Our main mechanism for validity and operating days
	ServiceCalendar	expected	1..1	ServiceCalendar	A SERVICE CALENDAR. A collection of DAY TYPE ASSIGNMENTs.	We only have one ServiceCalendar for the whole timetable year. It is not referenced.
	dayTypes	optional	0..1	dayTypes	DAY TYPEs for BLOCK.
+	DayType	optional	1..1	DayType	A type of day characterized by one or more properties which affect public transport operation. For example: weekday in school holidays.	Used for holidays only
	timebands	expected	0..1	timebandRefs_RelStructure	TIMEBANDS associated with JOURNEY FREQUENCY GROUP.
+	Timeband	expected	1..1	Timeband_VersionedChildStructure	A period in a day, significant for some aspect of public transport, e.g. similar traffic conditions or fare category.	Mainly used for frequency-based lines.
	dayTypeAssignments	optional	0..1	dayTypeAssignments_RelStructure	Assignments of DAY TYPEs to specific OPERATING DAYs. The same DAY TYPE may be assigned to multiple Operating dates, and vice versa.
+	DayTypeAssignment	optional	1..1	DayTypeAssignment	Associates a DAY TYPE with an OPERATING DAY within a specific Calendar. A specification of a particular DAY TYPE which will be valid during a TIME BAND on an OPERATING DAY.	Used for holidays only