CIF Association Records

Record Format

Associations are relationships between two schedules (i.e. a main train and an associated train.) Association records are contained within the SCHEDULE data feed, and provide information about the possible associations between train schedules. These can list the service that forms a given schedule and / or the service that a given schedule goes on to form.

For further details, see the Network Rail Common Interface Format file specification.

AANY80987Y808801601041602121111100JJSPRST     TP                               P

Record Fields

Field	Format	Size	Mandatory	Comment
Record Identity	String	2	Y	Value AA.
Transaction Type	String	1	Y	The type of transaction N - New D - Delete R - Revise.
Main Train UID	String	6	Y	UID of one train in the association.
Associated Train UID	String	6	Y	UID of the other train in the association.
Association start date	Date (YYMMDD)	6	Y	Start date of the association.
Association end date	Date (YYMMDD)	6	Y	End date for the association.
Association days	Bit String	7	Y	A seven-bit field; first bit starting from the left represents Monday, and last bit represents Sunday. A 1 means that the service runs on that day, while a 0 means that it does not.
Association Category	String	2	Y*	The type of association JJ - Join VV - Divide NP - Next.
Association Date Indicator	Char	1	Y*	Date relationship of the association S - Standard - the association occurs on the same day N - Over next-midnight - the association occurs the next day P - Over previous-midnight - the association occurs the previous day.
Association Location	String	7	Y	TIPLOC of the location where the association applies.
Base Location Suffix	Integer	1		Together with the TIPLOC, identifies the event on the base UID.
Association Location Suffix	Integer	1		Together with the TIPLOC, identifies the event on the associated UID.
Diagram Type	Char	1	Y	Not used. Value T.
Association Type	Char	1	Y*	P = passenger use, O = operating use only.
Spare	String	31
STP Indicator	Char	1	Y	STP (short-term planning) schedule indicator: C - STP cancellation of permanent association N - New STP association (not an overlay) O - STP overlay of permanent association P - Permanent association

* may be truncated in Delete records.

CIF
CIF	HD (Header) • ZZ (End of File)
TIPLOC	TI (TIPLOC Insert) • TA (TIPLOC Amend) • TD (TIPLOC Delete)
Association	AA (Association)
Location	BS (Basic Schedule) • BX (Basic Schedule Extended) • LO (Location Origin) • LI (Location Intermediate) • CR (Change-en-Route) • LT (Location Terminate)

Network Rail Open Data Feeds
Data Feeds	About the Feeds • Account States • Durable Subscriptions • Example Code ( PHP / C# / Java / Ruby / Node.js) • STOMP Client Libraries • Advanced Uses • FAQ • Release Notes
RTPPM	RTPPM Feed
Train Movements	Train Movements Feed • Train Activation • Train Cancellation • Train Movement • Train Reinstatement • Change of Origin • Change of Identity • Change of Location • TSPEED Field • Planned Cancellations • Cancellation Codes
TD	TD Feed • C-Class Messages • S-Class Messages • Train Describers • TD Berths
VSTP	VSTP Feed
TSR	TSR Feed • Route Codes
SCHEDULE	SCHEDULE Feed • TIPLOC Records • Schedule and Location Records • Association Records • CIF Codes • How Scheduling Works • Allowances
Reference Data	Reference Data Feed • TOC Codes • CIF Codes • Delay Attribution Codes • Identifying Locations (STANOX, TIPLOC, NLC and 3-Alpha Codes) • STANOX Geographical Areas • Train Planning data (BPLAN)