Difference between revisions of "Delay Attribution Guide"

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The [http://www.delayattributionboard.co.uk/documents/dag_pdac/April%202013%20DAG.pdf Delay Attribution Guide] contains a list of delay attribution codes and reasons. The same codes are used in [[Train_Cancellation | Train Cancellation messages]] sent on the [[Train_Movements | Train Movements]] feed. The current (April 2013) codes are listed here for reference.
+
The [https://www.networkrail.co.uk/dab Delay Attribution Guide] contains a list of delay attribution codes and reasons. The same codes are used in [[Train_Cancellation | Train Cancellation messages]] sent on the [[Train_Movements | Train Movements]] feed.
 +
 
 +
The codes in use as of April 2021 are listed here for reference.
 +
 
 +
Codes are grouped in to several sections:
 +
 
 +
* '''A*''' - Freight Terminal Operations Causes
 +
* '''D*''' - Holding Codes
 +
* '''F*''' - Freight Operating Causes
 +
* '''I* and J*''' - Infrastructure causes
 +
* '''M* and N*''' - Mechanical or Fleet Engineer Causes
 +
* '''O*''' - Network Rail Operating causes
 +
* '''P*''' - Planned or excluded delays or cancellations
 +
* '''Q*''' - Network Rail Non-Operating causes
 +
* '''R*''' - Station Operating Causes
 +
* '''T*''' - Passenger Operating causes
 +
* '''V*''' - External events – TOC Responsibility
 +
* '''X*''' - External events - Network Rail
 +
* '''Y*''' - Reactionary Delays
 +
* '''Z*''' - Unexplained delays and cancellations
  
 
= Delay Attribution Codes =
 
= Delay Attribution Codes =
Line 8: Line 27:
 
!Abbreviation
 
!Abbreviation
 
|----
 
|----
|AA  
+
|AA
|Waiting Terminal/Yard acceptance  
+
|Waiting acceptance into off Network Rail network Terminal or Yard
|ACCEPTANCE
+
|ACCEPTANCE
|----
 
|AB
 
|Waiting Customer release of documentation
 
|DOCUMENTS
 
|----
 
|AC
 
|Waiting train preparation or completion of TOPS list/RT3973
 
|TRAIN PREP
 
|----
 
|AD
 
|Terminal/Yard staff shortage including reactionary congestion caused by the shortage
 
|WTG STAFF
 
|----
 
|AE
 
|Congestion in Terminal/Yard
 
|CONGESTION
 
|----
 
|AF
 
|Terminal/Yard equipment failure - cranes etc
 
|EQUIPMENT
 
|----
 
|AG
 
|Adjusting Loaded wagons
 
|LOAD INCDT
 
|----
 
|AH
 
|Customer equipment breakdown/reduced capacity
 
|BREAKDOWN
 
|----
 
|AJ
 
|Waiting Customer's traffic including ship/road/air connections and Mail deliveries.
 
|TRAFFIC
 
|----
 
|AK
 
|Fire in freight yard / terminal (including private sidings, and stations Ð where it affects FOC services)
 
|INF FIRE
 
|----
 
|AX
 
|Failure of FOC-owned infrastructure
 
|FOC INFRA
 
|----
 
|AY
 
|Mishap in Terminal/Yard or on Terminal/Yard infrastructure
 
|FTO MISHAP
 
 
|----
 
|----
|AZ
+
|AC
|Other Freight Operating Company, cause to be specified
+
|Waiting train preparation or completion of TOPS list/RT3973
|FTO OTHER
+
|TRAIN PREP
 
|----
 
|----
|FA
+
|AD
|Dangerous goods incident
+
|Off Network Rail network Terminal or Yard staff shortage including reactionary congestion caused by the shortage
|DGI INCDT
+
|WTG STAFF
 
|----
 
|----
|FB
+
|AE
|Train stopped on route due to incorrect marshalling
+
|Congestion in off Network Rail network Terminal or Yard
|REMARSHALL
+
|CONGESTION
 
|----
 
|----
|FC
+
|AG
|Freight train driver
+
|Wagon load incident including adjusting loads or open door
|FCDRIVER
+
|LOAD INCDT
 
|----
 
|----
|FD
+
|AH
|Booked loco used on additional/other service
+
|Customer or off Network Rail network yard equipment breakdown/reduced capacity
|LOCO USED
+
|YARD EQUIP
 
|----
 
|----
|FE
+
|AJ
|Traincrew rostering error/not available, including crew relief errors
+
|Waiting Customer's traffic including release information and documentation
|NO T/CREW
+
|TRAF DOC
 
|----
 
|----
|FG
+
|AK
|Driver adhering to company professional driving standards or policy
+
|Safety incidents and mishaps (e.g. derailments, fire or chemical spill) in off Network Rail network freight yard or terminal (including private sidings, and stations – where it affects FOC services)
|PRO DVR
+
|YARDSAFETY
 
|----
 
|----
|FH
+
|AX
|Train crew/loco diagram/planning error (See also DAG Section 4.31.2)  
+
|Failure of off network infrastructure (FOC or private)
|DIAG ERROR
+
|OFFNET INF
 
|----
 
|----
|FI
+
|AZ
|Delay in running due to the incorrect operation of the on- board ETCS/ ERTMS equipment Ð i.e. wrong input by driver.
+
|Other Freight Operating Company cause, to be specified, in off Network Rail network terminals or yards
|ETCS INPUT
+
|YARD OTHER
 
|----
 
|----
|FJ
+
|DA
|Train held at Customer's request
+
|Non Technical Fleet Holding Code
|RETIME REQ
+
|HOLD NT FL
 
|----
 
|----
|FK
+
|DB
|Train diverted/re-routed at Customer's request
+
|Train Operations Holding Code
|DIVERT REQ
+
|HOLD T-OPS
 
|----
 
|----
|FL
+
|DC
|Train cancelled at Customer's request
+
|Train Crew Causes Holding Code
|CANCEL REQ
+
|HOLD T-CRW
 
|----
 
|----
|FM
+
|DD
|Tail lamp/head lamp out or incorrectly shown
+
|Technical Fleet Holding Code
|TAIL LAMP
+
|HOLD T FL
 
|----
 
|----
|FN
+
|DE
|Late presentation from Europe
+
|Station Causes Holding Code
|LATE CHUNL
+
|HOLD STN
 
|----
 
|----
|FO
+
|DF
|Delay in running believed to be due to Operator, but no information available from that Operator
+
|External Causes Holding Code
|FOC UNEX
+
|HOLD EXT
 
|----
 
|----
|FP
+
|DG
|Incorrect route taken or route wrongly challenged by driver, including SPADÕs
+
|Freight Terminal and or Yard Holding Code
|FTO MISRTE
+
|HOLD YARD
 
|----
 
|----
|FS
+
|DH
|Delay due to ETCS/ ERTMS on-board overriding driver command
+
|Adhesion and or Autumn Holding Code
|ETCS OVRD
+
|HOLD AUTM
 
|----
 
|----
|FT
+
|FA
|Freight Operator autumn-attribution Neutral Zone delays
+
|Dangerous goods incident
|LF NEUTRAL
+
|DANG GOODS
 
|----
 
|----
|FU
+
|FC
|Formal Inquiry Incident - possible Operator responsibility
+
|Freight Train Driver error, SPAD, Wrong routing or Missed AWS/DSD
|JOINT INQ
+
|FOC DRIVER
 
|----
 
|----
|FW
+
|FE
|Late start/yard overtime not explained by Operator
+
|Train crew not available including after rest
|LATE START
+
|NO T-CREW
 
|----
 
|----
|FX
+
|FF
|Freight train running at lower than planned classification
+
|FOC Diagramming or Rostering issue
|LOW CLASS
+
|FOC DIAG
 
|----
 
|----
|FY
+
|FG
|Mishap caused by Freight Operating Company or on FOC-owned infrastructure
+
|Driver adhering to company professional driving standards or policy
|FOC MISHAP
+
|PRO DRIVER
 
|----
 
|----
|FZ
+
|FH
|Other Freight Operating Company causes, including Freight Operating Company Control directive, cause to be specified
+
|FOC Planning issue (not diagramming or rostering)
|FOC OTHER
+
|FOC PLAN
 
|----
 
|----
|I0
+
|FI
|Telecom equipment failures legacy (inc. NRN/CSR/RETB link)
+
|Delay due to incorrect ETCS system or equipment operation by Driver
|RADIO FLR
+
|ETCS DVR
 
|----
 
|----
|I1
+
|FJ
|Overhead line/third rail defect
+
|FOC Control decision or directive
|OHL/3 RAIL
+
|FOC CONTRL
 
|----
 
|----
|I2
+
|FK
|AC/DC trip
+
|Train diverted or re-routed at FOC request
|AC/DC TRIP
+
|DIVERT REQ
 
|----
 
|----
|I3
+
|FL
|Obstruction on OHL, cause of which is not known
+
|Train cancelled at FOC request or planned not to run
|ON OHL
+
|CANCEL REQ
 
|----
 
|----
|I4
+
|FM
|OHL/third rail power supply failure/reduction
+
|Tail lamp or head lamp out or incorrectly shown
|SUPPLY FLR
+
|LAMP ISSUE
 
|----
 
|----
|I5
+
|FO
|Possession over-run from planned work
+
|Time lost en-route believed to be Operator cause and information required from Operator (Ops Responsibility)
|OVERRUN
+
|LIR UNEX
 
|----
 
|----
|I6
+
|FS
|Track Patrolling
+
|Delay due to ETCS/ ERTMS on-board overriding driver command
|TRK PATROL
+
|ETCS O-RDE
 
|----
 
|----
|I7
+
|FW
|Engineer's train late/failed in possession
+
|Late start or yard overtime not explained by Train Operator
|ENGNRS TRN
+
|LATE START
 
|----
 
|----
|I8
+
|FX
|Animal Strike/Incursion within the control of Network Rail
+
|Freight train running at lower class or speed than planned classification or overweight
|ANIMAL
+
|TRAIN SPEC
 
|----
 
|----
|I9
+
|FZ
|Fires starting on Network Rail Infrastructure
+
|Other FOC causes incl. cause to be specified, including mishaps.
|NR FIRE
+
|FOC OTHER
 
|----
 
|----
|IA  
+
|IA
|Signal failure  
+
|Signal failure (including no fault found)
 
|SIGNAL FLR
 
|SIGNAL FLR
 
|----
 
|----
|IB  
+
|IB
|Points failure  
+
|Points failure (including no fault found)
 
|POINTS FLR
 
|POINTS FLR
 
|----
 
|----
|IC  
+
|IC
|Track circuit failure  
+
|Track circuit failure (including no fault found)
 
|TC FAILURE
 
|TC FAILURE
 
|----
 
|----
|ID  
+
|ID
|Level crossing failure incl. barrow/foot crossings and crossing treadles  
+
|Level crossing faults and failure incl. barrow/foot crossings and crossing treadles
 
|LEVEL XING
 
|LEVEL XING
 
|----
 
|----
|IE  
+
|IE
|Power failure  
+
|Signalling functional power supply failure
|POWER FLR
+
|SIG FUNC PWR
 
|----
 
|----
|IF  
+
|IF
|Train Describer/Panel/ARS/SSI/TDM/Remote Control failure  
+
|Train Describer/Panel/ARS/SSI/TDM/Remote Control failure
|PANEL/TDM/FLR
+
|PANEL FLR
 
|----
 
|----
|IG  
+
|IG
|Block failure  
+
|Block failure
 
|BLOCK FLR
 
|BLOCK FLR
 
|----
 
|----
|II  
+
|IH
|Power Supply cable fault/fire due to cable fault  
+
|Power supply and distribution system failure
|CABLE FLR
+
|PWR SUP DIS
 +
|----
 +
|II
 +
|Signalling lineside cable fault
 +
|SIG CABLE
 
|----
 
|----
|IJ  
+
|IJ
|AWS/ATP/TPWS/Train Stop/On-track equipment failure  
+
|AWS/ATP/TPWS/Train Stop/On-track equipment failure
 
|AWS/ATP
 
|AWS/ATP
 
|----
 
|----
|IK  
+
|IK
|Telephone equipment failure  
+
|Telecom equipment failure (including no fault found)
|PHONE/SPT
+
|TELECOMS
 
|----
 
|----
|IL  
+
|IL
|Token equipment failure  
+
|Token equipment failure (including no fault found)
 
|TOKEN FLR
 
|TOKEN FLR
 
|----
 
|----
|IM  
+
|IM
|Infrastructure Balise Failure  
+
|Infrastructure Balise Failure (TASS / ETCS / ERTMS)
|BALISE
+
|BALISE FLR
 
|----
 
|----
|IN  
+
|IN
|HABD/Panchex/WILD/Wheelchex  
+
|HABD/Panchex/WILD/Wheelchex fault, failure or mis-detection
 
|HABD FAULT
 
|HABD FAULT
 
|----
 
|----
|IO
+
|IP
|No fault found/HABD/Panchex/WILD/Wheelchex
+
|Points failure caused by snow or frost where heaters are fitted but found to be not turned on, not operative or defective
|NFF
+
|POINT HEAT
|----
 
|IP  
 
|Points failure caused by snow or frost where heaters are fitted but found to be not operative or defective  
 
|PNT HEATER
 
 
|----
 
|----
|IQ  
+
|IQ
|Trackside sign blown down/light out etc
+
|Trackside sign blown down, fallen over, missing, defective, mis-placed
 
|TRACK SIGN
 
|TRACK SIGN
 
|----
 
|----
|IR  
+
|IR
|Broken/cracked/twisted/buckled/flawed rail  
+
|Broken/cracked/twisted/buckled/flawed rail
 
|RAIL FLAW
 
|RAIL FLAW
 
|----
 
|----
|IS  
+
|IS
|Track defects (other than rail defects i.e. fish plates, wet beds etc)
+
|Track defects (other than rail defects) inc. fish plates, wet beds etc.
 
|TRACK FLT
 
|TRACK FLT
 
|----
 
|----
|IT  
+
|IT
|Bumps reported - cause not known  
+
|Rough ride or bumps reported - cause not known or no fault found
|BUMP RPRTD
+
|TRACK NFF
|----
 
|IU
 
|Engineers on-track plant affecting possession
 
|ONTRACK EQ
 
 
|----
 
|----
|IV  
+
|IV
|Earthslip/subsidence/breached sea defences not the result of severe weather  
+
|Cutting or embankment earthslip, rock fall or subsidence (not the result of severe weather on the day of failure)
 
|EARTHSLIP
 
|EARTHSLIP
 
|----
 
|----
|IW  
+
|IW
|Non severe- Snow/Ice/Frost affecting infrastructure equipment  
+
|Non severe weather - snow/ice/frost affecting infrastructure equipment
|COLD
+
|INF WEATHR
|----
 
|IY
 
|Mishap - Network Rail causes
 
|INF MISHAP
 
|----
 
|IZ
 
|Other infrastructure causes
 
|INF OTHER
 
|----
 
|J0
 
|Telecom radio failures IVRS/GSM-R
 
|GSM-R FLR
 
|----
 
|J2
 
|TRTS Failure
 
|TRTS FLR
 
|----
 
|J3
 
|Axle Counter Failure
 
|AXLE FLR
 
|----
 
|J4
 
|Safety Issue No Fault Found
 
|INF NFF
 
|----
 
|J5
 
|NR DOO monitor/mirror failure
 
|DOO MON FLR
 
|----
 
|J6
 
|Lightning strike against unprotected assets
 
|LIGHTNING
 
 
|----
 
|----
|J7
+
|I0
|ETCS/ ERTMS Equipment Failure (excluding communications link and balises)  
+
|Telecom equipment legacy radio failure (RETB)
|ETCS FLR  
+
|RETB FLR
 
|----
 
|----
|J8
+
|I1
|Damage to infrastructure caused by on-track machine whilst operating in a possession
+
|Overhead line/3rd rail defect
|ONTRK DMG
+
|OHL/3 RAIL
 
|----
 
|----
|JA
+
|I2
|TSR speeds for Track-work outside the Rules of the Route
+
|AC/DC trip (including no fault or cause found)
|TSR O-ROTR
+
|AC/DC TRIP
 
|----
 
|----
|JB
+
|I4
|Reactionary Delay to 'P' coded TSR
+
|OHLE/3rd rail power supply failure or reduction
|PLND TSR
+
|SUPPLY FLR
 
|----
 
|----
|JC
+
|I5
|Telecom cable failure (transmission sys & cable failures )
+
|Possession over-run from planned work
|COMM LINKS
+
|OVERRUN
 
|----
 
|----
|JD
+
|I6
|Bridges/tunnels/buildings (other than bridge strikes)  
+
|Delays as a result of line blocks / track patrols (including late handback)
|STRUCTURES
+
|LINE BLOCK
 
|----
 
|----
|JG
+
|I7
|ESR/TSR due to cancelled possession/work not completed
+
|Engineer's train late into, from or failed in possession
|ESR/TSR
+
|ENGNRS TRN
 
|----
 
|----
|JH
+
|I8
|Critical Rail Temperature speeds, (other than buckled rails)
+
|Animal Strike or Incursion within the control of Network Rail
|HEAT SPEED
+
|ANIMAL
 
|----
 
|----
|JI
+
|I9
|Swing/lifting bridge failure
+
|Fires starting on Network Rail Infrastructure
|SWING BDGE
+
|INFRA FIRE
 
|----
 
|----
|JK
+
|JA
|Flooding not due to exceptional weather
+
|TSR speed restrictions for track work outside of the Timetable Planning Rules
|FLOODING
+
|TSRNOT EAS
 
|----
 
|----
|JL
+
|JB
|Network Rail/TRC Staff error
+
|Reactionary Delay to ‘P’ coded TSR
|STAFF
+
|TSR REACTN
 
|----
 
|----
|JM
+
|<s>JD</s>
|Change of Signal Aspects - no fault found
+
|<s>Structures - Bridges/tunnels/buildings/retaining walls/sea defences (not bridge strikes)</s>
|ASPECT CHG
+
|<s>STRUCTURES</s>
 
|----
 
|----
|JN
+
|JF
|Possession cancellation
+
|Off track asset defects or issues on the Network Rail network including fencing, gates, walkways, lighting (not due to vandalism or weather or where the asset is part of the station infrastructure)
|POSSN CANC
+
|OFFTRK ASS
 
|----
 
|----
|JO
+
|JG
|Rolling Contact Fatigue
+
|ESR/TSR due to works not completed or cancelled possession (where restriction did not exist prior to possession)
|RCF
+
|ESR/TSR
 
|----
 
|----
|JP
+
|JH
|Failure to maintain vegetation within network boundaries in accordance with prevailing Network Rail standards
+
|Critical Rail Temperature speeds, (other than buckled rails)
|VEG STD
+
|HEAT SPEED
 
|----
 
|----
|JQ
+
|JK
|Trains striking overhanging branches/vegetation (not weather- related)
+
|Flooding not due to exceptional weather
|TREE OHANG
+
|FLOODING
 
|----
 
|----
|JR
+
|JL
|Signals/track signs obscured by vegetation
+
|Safety related incident caused by maintenance or infrastructure staff oversight or error (not Operations staff)
|HIDDEN SIG
+
|SAFETY INF
 
|----
 
|----
|JS
+
|JP
|Condition of Track TSR Outside Rules of Route
+
|Failure to maintain vegetation within network boundaries in accordance with prevailing Network Rail standards, including where signals areobscured and a train strikes branches.
|COTTSR ORR
+
|VEGETATION
 
|----
 
|----
|JT
+
|JR
|Points failure caused by snow or frost where heaters are not fitted
+
|Delay due to RBC issues affecting ETCS / ATO operation (not balise related)
|NO PNT HTR
+
|RBC ETCS
 
|----
 
|----
|JX
+
|JS
|Miscellaneous items (including trees) causing obstructions, not the result of trespass, vandalism, weather or fallen/thrown from trains
+
|Condition of Track TSR outside the Timetable Planning Rules
|MISC OBS
+
|TRACK COND
 
|----
 
|----
|M0
+
|JT
|Safety systems failure (DSD/OTMR/Vigilance)
+
|Points failure caused by snow or frost where heaters are not fitted.
|DSD
+
|NO PNT HTR
 
|----
 
|----
|M1
+
|JX
|Pantograph fault or PANCHEX activation (positive)
+
|Miscellaneous items on the track or railhead including litter, excluding leaves, demonstrated vandalism, weather or items fallen/thrown from trains
|PANTOGRAPH
+
|MISC OBJCT
 
|----
 
|----
|M2
+
|J0
|Automatic Dropper Device activation
+
|Telecom equipment radio failure (GSM-R)
|ADD
+
|GSM-R FLR
 
|----
 
|----
|M3
+
|J2
|Diesel loco failure/defect/attention: other
+
|Network Rail train dispatch equipment failure (including no fault found but excluding telecoms equipment)
|DIESL OTH
+
|TRTS FLR
 
|----
 
|----
|M4
+
|J3
|EMU failure/defect/attention: brakes
+
|Axle Counter Failure
|EMU BRAKE
+
|AXLE C FLR
 
|----
 
|----
|M5
+
|J4
|EMU failure/defect/attention: doors (including SDO equipment failure)
+
|Infrastructure Safety Issue Reported by Member of the Public – No Fault Found
|EMU DOOR
+
|MOP NFF
 
|----
 
|----
|M6
+
|J5
|EMU failure/defect/attention: other
+
|Infrastructure Asset Fault Reported but Proven to be mistaken
|EMU OTHER
+
|MIS REPORT
 
|----
 
|----
|M7
+
|J6
|DMU (inc. HST/MPV) failure/defect/attention: doors (including SDO equipment failure and excluding Railhead Conditioning trains).
+
|Lightning strike against unprotected assets
|DMU DOOR
+
|LIGHTNING
 
|----
 
|----
|M8
+
|J7
|DMU (inc. HST/MPV) failure/defect/attention: other (excluding Railhead Conditioning trains)  
+
|ETCS/ ERTMS Equipment Failure (excluding communications link and balises)
|DMU OTHER
+
|ETCS FLR
 
|----
 
|----
|M9
+
|J8
|Reported fleet equipment defect - no fault found
+
|Damage to infrastructure caused by on-track machine whilst operating in a possession
|NFF
+
|OTM DAMAGE
 
|----
 
|----
|MA
+
|J9
|Electric loco (inc. IC225) failure/defect/attention: brakes
+
|Preventative Maintenance to the infrastructure in response to a Remote Condition Monitoring Alert
|ELEC BRAKE
+
|RCM ALERT
 
|----
 
|----
 
|MB
 
|MB
|Electric loco (inc. IC225) failure/defect/attention: traction
+
|Electric loco failure, defect, attention.
|ELEC TRAC
+
|ELEC LOCO
 
|----
 
|----
 
|MC
 
|MC
|Diesel loco failure/defect/attention: traction
+
|Diesel loco failure, defect, attention.
|DIESL TRAC
+
|DIESL LOCO
 
|----
 
|----
 
|MD
 
|MD
|DMU (inc. HST)/MPV failure/defect/attention: traction (excluding Railhead Conditioning trains)
+
|Other technical failures below the solebar
|DMU TRAC
+
|BELOW SBAR
 
|----
 
|----
 
|ME
 
|ME
|Steam locomotive failure/defect/attention  
+
|Steam locomotive failure/defect/attention
 
|STEAM LOCO
 
|STEAM LOCO
|----
 
|MF
 
|International/Channel Tunnel locomotive failure/defect/attention
 
|CHUNL LOCO
 
|----
 
|MG
 
|Coach (inc. Intl/IC225) failure/defect/attention: brakes
 
|COACH BRKE
 
|----
 
|MH
 
|Coach (inc. Intl/IC225) failure/defect/attention: doors
 
|COACH DOOR
 
|----
 
|MI
 
|Coach (inc. Intl/IC225) failure/defect/attention: other
 
|COACH OTHR
 
|----
 
|MJ
 
|Parcels vehicle failure/defect/attention
 
|PARCEL VEH
 
|----
 
|MK
 
|DVT/PCV failure/defect/attention
 
|DVT PCV
 
 
|----
 
|----
 
|ML
 
|ML
|Freight vehicle failure/defect attention (inc. private wagons)
+
|Wagons, coaches and parcel vehicle faults
|FRGHT VEH
+
|WAGN/COACH
|----
 
|MM
 
|EMU failure/defect/attention: traction
 
|EMU TRAC
 
 
|----
 
|----
 
|MN
 
|MN
|DMU (inc. HST/MPV) failure/defect/attention: brakes (excluding Railhead Conditioning trains)
+
|Brake and brake systemsfaults; including wheel flats where no other cause had been identified
|DMU BRAKE
+
|BRAKE/WHLS
|----
 
|MO
 
|Loco/unit/vehicles late off depot (cause not known)
 
|STOCK LATE
 
 
|----
 
|----
 
|MP
 
|MP
|Loco/unit adhesion problems  
+
|Rail/ wheel interface, adhesion problems (including ice on the running rail)
 
|ADHESION
 
|ADHESION
|----
 
|MQ
 
|Electric loco (inc. IC225) failure/defect/attention: other
 
|ELEC OTHER
 
 
|----
 
|----
 
|MR
 
|MR
|Hot Box or HABD/WILD activation (positive)
+
|Sanders and scrubber faults
|HOT BOX
+
|SANDER
 
|----
 
|----
 
|MS
 
|MS
|Stock change or replacement by slower vehicles (all vehicle types)
+
|Planned underpowered or shortformed service and or vehicle, incl. exam set swaps
|STOCK CHNG
+
|ALOC STOCK
 
|----
 
|----
 
|MT
 
|MT
|Safety systems failure (AWS/TPWS/ATP)  
+
|Confirmed train borne safety system faults (not cab based)
|AWS TPWS
+
|SYST FAULT
 
|----
 
|----
 
|MU
 
|MU
|Depot operating problem  
+
|Depot operating problem
|DEPOT
+
|DEPOT OPS
 
|----
 
|----
 
|MV
 
|MV
|EngineerÕs on-track equipment failure outside possession  
+
|Engineer’s on-track equipment failure outside possession
 
|ON-TRACK
 
|ON-TRACK
 
|----
 
|----
 
|MW
 
|MW
|Weather Ð effect on T&amp;RS equipment  
+
|Weather - effect on T&RS equipment
|WEATHER
+
|WEATHR FLT
|----
 
|MX
 
|Diesel loco failure/defect/attention: brakes
 
|DIESL BRKE
 
 
|----
 
|----
 
|MY
 
|MY
|Mishap Ð T&amp;RS cause
+
|Coupler and Coupler system faults
|TRS MISHAP
+
|COUPLER
 
|----
 
|----
|MZ
+
|M1
|Other Fleet Engineer causes/initial attribution
+
|Confirmed Pantograph ADD, shoe beam or associated system faults Incl. positive PANCHEX activations
|T+RS OTHER
+
|PANTO/SHOE
 
|----
 
|----
|NA
+
|M2
|Ontrain TASS Failure
+
|Delay due to ATO / ETCS equipment
|TASS
+
|ETCS
 
|----
 
|----
|NB
+
|M7
|TASS Ð No fault found
+
|Door and Door system faults
|TASS NFF
+
|DOORS
 
|----
 
|----
|NC
+
|M8
|Fire in fleet depot not caused by vandals (includes caused by vandals in respect of freight depots)
+
|Other technical failures above the Solebar
|DEP FIRE
+
|ABOVE SBAR
 
|----
 
|----
|ND
+
|M9
|On train ETCS/ ERTMS failure
+
|Reported fleet equipment defect - no fault found
|ETCS
+
|FLEET NFF
 
|----
 
|----
|O2
+
|M0
|ACI Failures
+
|Confirmed train cab based safety system fault (including GSM-R)
|ACI FAIL
+
|CAB SAFETY
 
|----
 
|----
|OB
+
|NA
|Delayed by signaller not applying applicable regulating policy
+
|On-train TASS/TILT failure
|Regulation
+
|TASS/TILT
 
|----
 
|----
|OC
+
|OA
|Signaller, including wrong routing and wrong ETCS/ ERTMS instruction
+
|Regulation decision made with best endeavours
|SIGNALLER
+
|ENDVR REG
 
|----
 
|----
|OD
+
|OB
|Delayed as a result of Route Control directive
+
|Delayed by signaller not applying applicable regulating policy
|NR CONTROL
+
|REGULATION
 
|----
 
|----
|OE
+
|OC
|Failure to lay Sandite or operate Railhead Conditioning train as programmed
+
|Signaller including mis-routing (not ERTM /ETCS related)
|RHC PROG
+
|SIGNALLER
 
|----
 
|----
|OG
+
|OD
|Ice on conductor rail/OLE
+
|Delays due to national, regional or route operations directives, or route control decisions or directive
|ICE
+
|NR CONTROL
 
|----
 
|----
|OH
+
|OE
|ARS software problem (excluding scheduling error and technical failures)
+
|Failure to lay Sandite or operate Railhead Conditioning train as programmed
|ARS
+
|RHC PROG
 
|----
 
|----
|OI
+
|OF
|Formal Inquiry Incident - other operators
+
|Delay due to incorrect ETCS system or equipment operation by Signaller / Controller
|JOINT INQ
+
|ETCS CTRL
 
|----
 
|----
|OJ
+
|OG
|Fire in station building or on platform, affecting operators not booked to call at that station
+
|Ice on conductor rail/OHLE
|STN FIRE
+
|ICING
 
|----
 
|----
|OK
+
|OH
|Delay caused by Operating staff oversight, error or absence (excluding signallers and Control)  
+
|ARS / TMS / SARS software problem (excluding scheduling issues and technical failures)
|OPTG STAFF
+
|ARS / TMS
 
|----
 
|----
|OL
+
|OJ
|Signal Box not open during booked hours
+
|Fire in station building or on platform, affecting operators not booked to call at that station
|BOX CLOSED
+
|STN FIRE
 
|----
 
|----
|OM
+
|OK
|Technical failure associated with a Railhead Conditioning train
+
|Delay caused by Operating staff oversight, issues or absence (excluding signallers and Control)
|RHC FLR
+
|OPTG STAFF
 
|----
 
|----
|ON
+
|OL
|Delays not properly investigated by Network Rail
+
|Signal Box not open during booked hours
|Mis-invest
+
|BOX CLOSED
 
|----
 
|----
|OO
+
|OM
|Late start of a RHC
+
|Technical failure associated with a Railhead Conditioning train
|RHC  
+
|RHC FAIL
 
|----
 
|----
|OP
+
|ON
|Failure of TRUST/SMART systems
+
|Delays not properly investigated by Network Rail
|TRUST FLR
+
|MIS-INVEST
 
|----
 
|----
|OQ  
+
|OQ
|Incorrect Simplifier  
+
|Incorrect Simplifier
|SIMP ERR
+
|SIMPLIFIER
 +
|-
 +
|OR
 +
|LOM Directive or signaller correctly applying local box instructions
 +
|BOX INSTR
 +
|-
 +
|OS
 +
|Late start or delays to Railhead Conditioning (RHC) or Ghost Train due to its own activity and not in reaction to another incident.
 +
|RHC LATE
 
|----
 
|----
|OS
+
|OT
|Delays to other trains caused by a Railhead Conditioning train taking unusually long time in section or at a location
+
|Operational Safety TSR implemented for sighting issues relating to foot crossings, level crossings or signals (Not vegetation caused)
|RHC LATE
+
|SIGHT TSR
 
|----
 
|----
|OU  
+
|OU
|Delays un-investigated  
+
|Delays not investigated by Network Rail
|Un-invest
+
|NOT INVEST
 
|----
 
|----
|OV  
+
|OV
|Fire or evacuation due to fire alarm of Network Rail buildings other than stations not due to vandalism  
+
|Fire or evacuation due to fire alarm of Network Rail buildings other than stations not due to vandalism
|NR FIRE  
+
|NR FIRE
|----
 
|OW
 
|Connections held where the prime incident causing delay to the incoming train is a FOC owned incident and service is more frequent than hourly
 
|FOC CONN
 
|----
 
|OY
 
|Mishap - Network Rail Operating cause
 
|NR MISHAP
 
|----
 
|OZ
 
|Other Network Rail Operating causes
 
|OPTG OTHER
 
|----
 
|PA
 
|Trackwork TSR within Rules of the Route
 
|PLANND TSR
 
|----
 
|PB
 
|Condition of Track TSR within Rules of the Route
 
|PLANND COT
 
|----
 
|PC
 
|Condition of Bridge TSR within rules of the route
 
|PLANND COB
 
 
|----
 
|----
|PD
+
|OW
|TPS cancellation (Not to be input in TSI/TRUST)
+
|Connections held where the Prime Incident causing delay to the incoming train is a FOC responsibility incident and the next departing service is scheduled to depart less than 60 minutes later than the train being held.
|TPS CANC
+
|FOC CONECT
 
|----
 
|----
|PE
+
|<s>OZ</s>
|Cancelled due to planned engineering work
+
|<s>Other Network Rail Operating causes</s>
|ENGNRG WRK
+
|<s>OPTG OTHER</s>
 
|----
 
|----
|PF
+
|PA
|Planned engineering work - diversion/SLW not timetabled (within Rules of the Route)
+
|Published TSR associated with Planned Engineering Works where time loss is within Engineering Allowance
|DIVRSN/SLW
+
|PLANND ENG
 
|----
 
|----
|PG
+
|PB
|Planned cancellation by Train Operator
+
|Published TSR due to condition of asset (not associated with Engineering Work) where time loss is within Engineering Allowance
|PLAND CANC
+
|PLANND CON
 
|----
 
|----
|PH
+
|PD
|Condition of Earthworks TSR within Rules of the Route
+
|System generated cancellation (NOT to be attributed to manually)
|PLND COE
+
|SYSTM CANC
 
|----
 
|----
|PI
+
|PF
|TSR for Schedule 4 Possession
+
|Planned engineering work where a published diversion/SLW is not provided for in the schedule but where time loss is within Engineering Allowance
|SCH 4 TSR
+
|DIVRSN SLW
 
|----
 
|----
|PJ
+
|PG
|Duplicate delay
+
|Planned cancellation where that cancellation isidentified and agreed prior to 22.00 the day before the schedule runs
|DUPLICATE
+
|PLAND CAPE
 
|----
 
|----
|PK
+
|PJ
|Bank Holiday Cancellation  
+
|Cancellation of a duplicate or erroneous schedule or an identified duplicate, false or erroneous delay (NOT berth off set related)
|BANK HOL
+
|DUPLICATE
 
|----
 
|----
 
|PL  
 
|PL  
|Exclusion agreed between Network Rail and Train Operator  
+
|Exclusion commercially agreed and documented between Network Rail and Train Operator
|AGREED EXC  
+
|AGREED EXC
 
|----
 
|----
 
|PN  
 
|PN  
|Minor delays to VSTP service caused by regulation / time lost in running.
+
|VSTP service delays of under 5 minutes caused by regulation and or time lost in running (VSTP Schedule delay ONLY where that delay causes no reactionary delay)
 
|VSTP DELAY  
 
|VSTP DELAY  
|----
 
|PS
 
|Cancellation of a duplicate or erroneous schedule
 
|DUPE SCHLD
 
 
|----
 
|----
 
|PT  
 
|PT  
|TRUST Berth Offset Errors
+
|Authorised TRUST reporting anomalies or inaccuraciesrelating to berth off sets
|OFFSET ERR
+
|TRUST ANOM
|----
 
|PZ
 
|Other contractual exclusion
 
|OTH EXC
 
 
|----
 
|----
 
|QA  
 
|QA  
|WTT Schedule / LTP process  
+
|WTT Schedule and or LTP process including incorrect simplifiers (where produced by Capacity Planning).
|WTT SCHED  
+
|WTT SCHED
 
|----
 
|----
 
|QB  
 
|QB  
|Planned engineering work - diversion/SLW not timetabled (outside rules of the route)  
+
|Planned engineering work- diversion/SLW not timetabled (outside the Timetable Planning Rules.)
|DIVRSN/SLW  
+
|DIVRSN/SLW
 
|----
 
|----
 
|QH  
 
|QH  
|Adhesion problems due to leaf contamination  
+
|Adhesion problems due to leaf contamination
|LEAF SLIP
+
|RAILCONTAM
 
|----
 
|----
 
|QI  
 
|QI  
|Cautioning due to railhead leaf contamination  
+
|Cautioning due to railhead leaf contamination
|RLHD CONT
+
|CAUTCONTAM
 
|----
 
|----
 
|QJ  
 
|QJ  
|Special working for leaf-fall track circuit operation  
+
|Special working for leaf-fall track circuit operation
 
|LEAVES T/C  
 
|LEAVES T/C  
 
|----
 
|----
 
|QM  
 
|QM  
|STP schedule / STP process  
+
|Train Schedule VAR/STP process including incorrect simplifiers (where produced by Capacity Planning).
 
|STP SCHED  
 
|STP SCHED  
 
|----
 
|----
 
|QN  
 
|QN  
|VSTP schedule / VSTP process (TSI created schedule)  
+
|VSTP schedule / VSTP process (TSI created schedule)
|TSI SCHED  
+
|VSTP SCHED
 
|----
 
|----
 
|QP  
 
|QP  
|Reactionary Delay to ÒPÓ coded Possession  
+
|Reactionary Delay to “P” coded Possession
|PLND LOP
+
|PLND REACT
|----
 
|QQ
 
|Simplifier Error Ops Planning
 
|OPS S ERR
 
|----
 
|QT
 
|Delay accepted by Network Rail as part of a commercial agreement where no substantive delay reason is identified
 
|TAKEBACK
 
|----
 
|QZ
 
|Other Network Rail non-Operating causes
 
|COMM OTHER
 
|----
 
|R1
 
|Incorrect train dispatch by station staff
 
|DISPATCH
 
|----
 
|R2
 
|Late TRTS given by station staff
 
|LATE TRTS
 
|----
 
|R3
 
|Station staff unavailable - missing or uncovered
 
|STAFF MSN
 
|----
 
|R4
 
|Station staff split responsibility - unable to cover all duties
 
|STAFF DUTY
 
|----
 
|R5
 
|Station staff error - e.g. wrong announcements, misdirection
 
|STAFF ERR
 
|----
 
|R6
 
|Overtime at stations normally unstaffed.
 
|UNSTAFFED
 
 
|----
 
|----
|R7
+
|<s>QT</s>
|Station delays due to special events e.g. sports fixtures
+
|<s>Delay accepted by Network Rail as part of a commercial agreement where no substantive delay reason is identified</s>
|SPORTS
+
|<s>COMMERCIAL</s>
 
|----
 
|----
 
|RB  
 
|RB  
|Passengers joining/alighting  
+
|Passengers joining/alighting
 
|PASSENGERS  
 
|PASSENGERS  
 
|----
 
|----
 
|RC  
 
|RC  
|Assisting a disabled person joining/alighting, pre-booked
+
|Pre-booked assistance for a person with reduced mobility joining/alighting
|DISAB 1
+
|BKD ASSIST
 
|----
 
|----
 
|RD  
 
|RD  
|Attaching/detaching/shunter/watering  
+
|Attaching/detaching/Shunter/watering
|ATT/DETACH  
+
|ATT/DETACH
 
|----
 
|----
 
|RE  
 
|RE  
|Lift/escalator defect/failure  
+
|Lift/escalator defect/failure
 
|LIFT/ESC  
 
|LIFT/ESC  
|----
 
|RF
 
|Loading/unloading letter mails/parcels
 
|MAIL/PRCLS
 
 
|----
 
|----
 
|RH  
 
|RH  
|Station evacuated due to fire alarm  
+
|Station evacuated due to fire alarm
 
|FIRE ALARM  
 
|FIRE ALARM  
 
|----
 
|----
 
|RI  
 
|RI  
|Waiting connections - not authorised by TOC Control  
+
|Waiting connections - not authorised by TOC Control
 
|UNAUTH CON  
 
|UNAUTH CON  
 
|----
 
|----
 
|RJ  
 
|RJ  
|Special Stop Orders - not authorised by TOC Control  
+
|Special Stop Orders - not authorised by TOC Control
 
|UNAUTH SSO  
 
|UNAUTH SSO  
 
|----
 
|----
 
|RK  
 
|RK  
|Waiting connections - authorised by TOC Control
+
|Waiting passenger connections authorised by TOC but out with TOC/Network Rail connection policy
 
|AUTH CON  
 
|AUTH CON  
 
|----
 
|----
 
|RL  
 
|RL  
|Special Stop Orders - authorised by TOC Control  
+
|Special Stop Orders authorised by TOC Control (including any delay at point of issue)
 
|AUTH SSO  
 
|AUTH SSO  
 
|----
 
|----
 
|RM  
 
|RM  
|Waiting connections from other transport modes  
+
|Waiting connections from other transport modes
|XTNL CONN
+
|XTNL CONN
|----
 
|RN
 
|Passengers ÒforcingÓ connections between trains outside connectional allowances
 
|PASS CONN  
 
 
|----
 
|----
 
|RO  
 
|RO  
Line 825: Line 656:
 
|----
 
|----
 
|RP  
 
|RP  
|Passengers dropping items on track (not vandalism)
+
|Passenger dropped object whilst boarding/alighting from train and train delayed at TOC request
 
|PASS DROP  
 
|PASS DROP  
 
|----
 
|----
 
|RQ  
 
|RQ  
|Assisting a disabled person joining/alighting, unbooked
+
|Un-booked assistance for a person with reduced mobility joining/alighting
|DISAB 2
+
|UBKD ASST
 
|----
 
|----
 
|RR  
 
|RR  
|Loading reserved bicycles presented late
+
|Loading or unloading reserved bicycles
|BIKE 1
+
|BIKE RSVD
 
|----
 
|----
 
|RS  
 
|RS  
|Loading unreserved bicycles  
+
|Loading or unloading unreserved bicycles
|BIKE 2
+
|BIKE URSVD
 
|----
 
|----
 
|RT  
 
|RT  
 
|Loading excessive luggage  
 
|Loading excessive luggage  
|LUGGAGE 1
+
|EXCES LUGG
 
|----
 
|----
 
|RU  
 
|RU  
 
|Locating lost luggage  
 
|Locating lost luggage  
|LUGGAGE 2
+
|LOST LUGG
 
|----
 
|----
 
|RV  
 
|RV  
Line 853: Line 684:
 
|----
 
|----
 
|RW  
 
|RW  
|Station flooding (including issues with drains) not the result of weather, where the water has not emanated from Network Rail maintained infrastructure/network  
+
|Station flooding (including issues with drains) not the result of weather, where the water has not emanated from Network Rail maintained infrastructure/network
|STN FLOOD  
+
|STN FLOOD
 +
|----
 +
|RX
 +
|Station delays as a result of overcrowding due to unplanned events or incidents (e.g result of line or station closure) where causal event is not determined.
 +
|UNPL EVENT
 
|----
 
|----
|RY  
+
|RY
|Mishap - Station Operator cause
+
|Mishap - Station operating causes
 
|STN MISHAP  
 
|STN MISHAP  
 
|----
 
|----
|RZ  
+
|RZ
|Other Station Operator causes  
+
|Other Station operating causes
|STN OTHER  
+
|STN OTHER
 
|----
 
|----
|T1
+
|R1
|Delay at unstaffed station to DOO train
+
|Incorrect train dispatch by station staff
|DOO STN
+
|DISPATCH
 
|----
 
|----
|T2
+
|R2
|Delay at unstaffed station to non-DOO train
+
|Late TRTS given by station staff
|NONDOO STN
+
|LATE TRTS
 
|----
 
|----
|T3
+
|R3
|Waiting connections from other transport modes
+
|Station staff unavailable - missing or uncovered
|XTNL CONN
+
|STAFF MSNG
 
|----
 
|----
|T4
+
|R4
|Loading Supplies (including catering)
+
|Station staff split responsibility - unable to cover all duties
|SUPPLIES
+
|STAFF DUTY
 
|----
 
|----
|TA
+
|R5
|Traincrew/loco/stock/unit diagram error (See also DAG Section 4.31.2)
+
|Station staff error - e.g. wrong announcements, misdirection
|DIAG ERROR
+
|STAFF ERR
 
|----
 
|----
|TB
+
|R7
|Train cancelled/delayed at Train OperatorÕs request
+
|Station delays as a result of overcrowding due to planned events(e.g.sports fixtures, concerts)
|TOC REQST
+
|PLND EVENT
 
|----
 
|----
|TC
+
|R8
|Booked Traincrew used for additional/other service
+
|Delay at Station believed to be Operator cause and information required from Operator (Station Responsibility)
|CREW USED
+
|STN UNEX
 
|----
 
|----
|TD
+
|TA
|Booked loco/stock/unit used for additional/other service
+
|Train-crew/loco/stock/unit diagram issues
|STOCK USED
+
|DIAG ISSUE
 
|----
 
|----
|TE
+
|TB
|Injury to passenger on train
+
|Train cancelled or delayed at Train Operator’s request
|PASS INJRY
+
|TOC REQEST
 
|----
 
|----
 
|TF
 
|TF
|Seat reservation problems  
+
|Seat reservation problems
 
|SEAT RESVN
 
|SEAT RESVN
 
|----
 
|----
 
|TG
 
|TG
 
|Driver  
 
|Driver  
|DRIVER
+
|TOC DRIVER
 
|----
 
|----
 
|TH
 
|TH
|(Senior) Conductor/Train Manager  
+
|(Senior) Conductor/Train Manager
|(SNR) COND
+
|T-MGR/COND
 
|----
 
|----
 
|TI
 
|TI
|Traincrew rostering problem  
+
|Train-crew rostering problem
 
|ROSTERING
 
|ROSTERING
 
|----
 
|----
 
|TJ
 
|TJ
|Tail lamp/headlamp out
+
|Tail lamp or headlamp missing, not lit or wrongly displayed
|TAIL LAMP
+
|LAMP ISSUE
 
|----
 
|----
 
|TK
 
|TK
|Train catering staff (including Contractors)  
+
|Train catering staff (including Contractors)
 
|CATERING
 
|CATERING
|----
 
|TL
 
|Door open / not properly secured incident
 
|DOOR OPEN
 
 
|----
 
|----
 
|TM
 
|TM
|Connection authorised by TOC but outwith connection policy  
+
|Connection authorised by TOC but out with connection policy
 
|AUTH CONN
 
|AUTH CONN
 
|----
 
|----
 
|TN
 
|TN
|Late presentation from the continent  
+
|Late presentation from the continent
 
|LATE CHUNL
 
|LATE CHUNL
 
|----
 
|----
 
|TO
 
|TO
|Delay believed to be due to Operator, but no information available from Operator  
+
|Time lost en-route believed to be Operator cause and information required from Operator (Ops Responsibility)
|TOC UNEX
+
|LIR UNEX
 
|----
 
|----
 
|TP
 
|TP
Line 945: Line 776:
 
|----
 
|----
 
|TR
 
|TR
|Train Operating Company Directive  
+
|Train Operating Company Directive
 
|TOC DIRECT
 
|TOC DIRECT
 
|----
 
|----
 
|TS
 
|TS
|Delay due to ETCS/ ERTMS on-board overriding driver command
+
|Delay due to incorrect ETCS system or equipment operation by Driver
|ETCS OVRD
+
|ETCS DVR
 
|----
 
|----
 
|TT
 
|TT
|Autumn-attribution Neutral Zone delays (See Supplementary Autumn Attribution Guidance)  
+
|Autumn-attribution Neutral Zone delays (See Supplementary Autumn Attribution Guidance)
 
|LF NEUTRAL
 
|LF NEUTRAL
|----
 
|TU
 
|Formal Inquiry Incident - possible Operator responsibility
 
|JOINT INQ
 
 
|----
 
|----
 
|TW
 
|TW
|Driver adhering to company professional driving standards or policy  
+
|Driver adhering to company professional driving standards or policy
|PRO DVR
+
|PRO DRIVER
 
|----
 
|----
 
|TX
 
|TX
|Delays incurred on non-Network Rail running lines including London Underground causes (except T&amp;RS)  
+
|Delays incurred on non-Network Rail running lines or networks including London Underground (except fleet related delays)
|LUL CAUSES
+
|OTH NETWK
 
|----
 
|----
 
|TY
 
|TY
|Mishap-Train Operating Company cause  
+
|Mishap-Train Operating Company cause
 
|TOC MISHAP
 
|TOC MISHAP
 
|----
 
|----
 
|TZ
 
|TZ
|Other Passenger Train Operating Company causes  
+
|Other Passenger Train Operating Company causes
 
|TOC OTHER
 
|TOC OTHER
 
|----
 
|----
|V8
+
|T2
|Train striking other birds
+
|Delay at unstaffed station to non-DOO train
|OTH BIRDS
+
|NONDOO STN
 
|----
 
|----
|VA
+
|T3
|Disorder/drunks/trespass etc
+
|Waiting connections from other transport modes
|DISORDER
+
|XTNL CONN
 
|----
 
|----
|VB
+
|T4
|Vandalism/theft
+
|Loading Supplies (including catering)
|VANDALS
+
|SUPPLIES
 
|----
 
|----
|VC
+
|T8
|Fatalities/injuries sustained whilst on a platform as the result of being struck by a train or falling from a train
+
|Delay at Station believed to be Operator cause and information required from Operator ( Ops Responsibility)
|FATALITIES
+
|STN UNEX
 
|----
 
|----
|VD
+
|VA
|Passenger taken ill on train
+
|Disorder, drunks or trespass
|ILL PASS
+
|DISORDER
 
|----
 
|----
|VE
+
|VB
|Ticket irregularities/refusals to pay
+
|Vandalism and or theft
|TICKET IRR
+
|VANDALISM
 
|----
 
|----
|VF
+
|VC
|Fire caused by vandalism
+
|Fatalities and or injuries sustained whilst on a platform as the result of being struck by a train or falling from a train
|VDL FIRE
+
|FATALITIES
 
|----
 
|----
|VG
+
|VD
|Police searching train  
+
|Passenger taken ill on train
|POLICE-TRN
+
|ILL PASS
 
|----
 
|----
|VH
+
|VE
|Communication cord/emergency train alarm operated
+
|Ticket irregularities or refusals to pay
|COM CORD
+
|TICKET IRR
 
|----
 
|----
|VI
+
|VF
|Security alert affecting stations and depots
+
|Fire caused by vandalism
|SEC ALERT
+
|VANDL FIRE
 
|----
 
|----
|VR
+
|VG
|Driver adhering to company professional driving standards or policies during severe weather conditions that are not fleet related
+
|Police searching train
|PRO DVR
+
|POLICE-TRN
 
|----
 
|----
|VW
+
|VH
|Severe weather affecting passenger fleet equipment including following company standards/policies or Rule Book instructions
+
|Passenger Communication cord, door egress or emergency train alarm operated
|WEATHER
+
|PASS COMM
 
|----
 
|----
|VX
+
|VI
|Passenger charter excludable events occurring on the LUL or other non NR running lines
+
|Security alert affecting stations and depots
|LUL CAUSES
+
|SEC ALERT
 
|----
 
|----
|VZ
+
|VR
|Other passenger/external causes the responsibility of TOC
+
|Driver adhering to company professional driving standards or policies during severe weather conditions that are not fleet related
|EXT OTHER
+
|PRO DRIVER
 
|----
 
|----
|X1
+
|VW
|Visibility in semaphore signalled areas, or special working for fog and falling snow implemented by Network Rail Ð in all signalling areas
+
|Severe weather affecting passenger fleet equipment including following company standards/policies or Rule Book instructions
|SPL REGS
+
|SEV WEATHR
 
|----
 
|----
|X2
+
|VX
|Severe flooding beyond that which could be mitigated on Network Rail infrastructure
+
|External events occurring on the LUL or other non NR running lines
|SEV FLOOD
+
|LUL CAUSES
 
|----
 
|----
|X3
+
|VZ
|Lightning Strike Ð damage to protected systems.
+
|Other passenger or external causes the responsibility of TOC
|LGHTNG
+
|EXT OTHER
|----
 
|X4
 
|Blanket speed restriction for extreme heat or high wind in accordance with the Group Standards
 
|BLNK REST
 
|----
 
|X8
 
|Animal Strike/Incursion not within the control of Network Rail
 
|EXT ANIMAL
 
 
|----
 
|----
|X9
+
|V8
|Points failure caused by severe snow where heaters are working as designed
+
|Train striking or being struck by a bird
|SEV SNOW
+
|BIRDSTRIKE
 
|----
 
|----
 
|XA
 
|XA
|Trespass  
+
|Trespass (Including non-intentional)
 
|TRESPASS
 
|TRESPASS
 
|----
 
|----
 
|XB
 
|XB
|Vandalism/theft (including the placing of objects on the line)  
+
|Vandalism or theft (including the placing of objects on the line)
 
|VANDALS
 
|VANDALS
 
|----
 
|----
 
|XC
 
|XC
|Fatalities/ injuries caused by being hit by train  
+
|Fatalities or injuries caused by being hit by train (Including non-intentional)
 
|FATALITIES
 
|FATALITIES
 
|----
 
|----
|XD
+
|<s>XD</s>
|Level Crossing Incidents  
+
|<s>Level Crossing Incidents including misuse and emergency services being prioritised over rail services.</s>
|XING INCDT
+
|<s>XING INCDT</s>
 
|----
 
|----
|XF
+
|<s>XF</s>
|Police searching line  
+
|<s>Police searching the line</s>
|POLICE-RLY
+
|<s>POLICE-RLY</s>
 
|----
 
|----
|XH
+
|<s>XH</s>
|Severe heat affecting infrastructure the responsibility of Network Rail (excluding Heat speeds)  
+
|<s>Severe heat affecting infrastructure the responsibility of Network Rail (excluding Heat related speed restrictions)</s>
|SEV HEAT
+
|<s>SEV HEAT</s>
 
|----
 
|----
 
|XI
 
|XI
|Security alert affecting Network Rail Network  
+
|Security alert affecting the Network Rail Network (including line blocks taken for emergency services attending an off Network Rail network incident)
 
|SEC ALERT
 
|SEC ALERT
 
|----
 
|----
 
|XK
 
|XK
|External Power Supply Failure Network Rail Infrastructure
+
|National Grid power failure - local area is also affected (includes ourages, surges and blips where a standby generator or UPS is installed and working)
 
|EXTL POWER
 
|EXTL POWER
 
|----
 
|----
 
|XL
 
|XL
|Fire external to railway infrastructure
+
|Fire external to but directly affecting the Network Rail network (including line blocks taken for emergency services attending an incident not directly affecting the Network Rail network)
 
|EXTL FIRES
 
|EXTL FIRES
 
|----
 
|----
 
|XM
 
|XM
|Gas/water mains/overhead power lines  
+
|External utility incident including gas, water mains and overhead power lines
 
|GAS/WATER
 
|GAS/WATER
 
|----
 
|----
 
|XN
 
|XN
|Road related - excl bridge strikes/level crossing incident
+
|Road or crossing related incidents including cars on the line, crossing misuse and priority given to emergency services over trains (excluding bridge strikes)
 
|ROAD INCDT
 
|ROAD INCDT
 
|----
 
|----
 
|XO
 
|XO
|External trees, building or objects encroaching onto Network Rail infrastructure (not due to weather or vandalism)  
+
|External trees, building or structures encroaching or falling onto Network Rail network infrastructure (not due to weather or vandalism) also including aircraft and airport safety or operational related incidents.
 
|EXT OBJECT
 
|EXT OBJECT
 
|----
 
|----
 
|XP
 
|XP
 
|Bridge Strike  
 
|Bridge Strike  
|BDG STRIKE
+
|BRIDGE HIT
 
|----
 
|----
 
|XQ
 
|XQ
|Swing bridge open for river or canal traffic  
+
|Swing bridge open for river or canal traffic
|BDGE OPEN
+
|BRIDGE OPN
 
|----
 
|----
 
|XR
 
|XR
|Cable vandalism/theft  
+
|Cable vandalism or theft  
|CABLE CUT
+
|CABLE VAND
|----
 
|XS
 
|Level Crossing misuse
 
|XNG MISUSE
 
 
|----
 
|----
 
|XT
 
|XT
|Severe cold weather affecting infrastructure the responsibility of Network Rail  
+
|Severe snow or ice affecting infrastructure which is the responsibility of Network Rail (including implementation of Key Route Strategy)
|SEV COLD
+
|SEV SNOW
 
|----
 
|----
 
|XU
 
|XU
|Sunlight on signal  
+
|Sunlight on signal or dispatch equipment where all reasonable mitigation has been taken
 
|SUN OBSCUR
 
|SUN OBSCUR
 
|----
 
|----
|XV
+
|<s>XV</s>
|Fire or evacuation due to fire alarm of Network Rail buildings other than stations due to vandalism  
+
|<s>Fire or evacuation due to fire alarm of Network Rail buildings due to vandalism (not including stations)</s>
|NR FIRE
+
|<s>VANDL FIRE</s>
 
|----
 
|----
 
|XW
 
|XW
|High winds affecting infrastructure the responsibility of Network Rail including objects on the line due to the effect of weather  
+
|High winds affecting infrastructure the responsibility of Network Rail including objects on the line due to the effect of weather
|WIND
+
|HIGH WIND
 +
|----
 +
|X1
 +
|Visibility in semaphore signalled areas, orspecial working for fog and falling snow implemented by Network Rail – in all signalling areas (including special working for level crossing visibility)
 +
|SPL WRKING
 +
|----
 +
|X2
 +
|Severe flooding beyond that which could be mitigated on Network Rail infrastructure
 +
|SEV FLOOD
 +
|----
 +
|X3
 +
|Lightning Strike – damage to protected systems.
 +
|LIGHTNING
 
|----
 
|----
|XZ
+
|X4
|Other external causes the responsibility of Network Rail  
+
|Blanket speed restriction or Key Route Strategy implemented in accordance with Group Standards or other national operational safety instruction
|EXT OTHER
+
|KRS / BLKT
 +
|----
 +
|X8
 +
|Animal Strike or incursion not within the control of Network Rail
 +
|EXT ANIMAL
 +
|----
 +
|X9
 +
|Points failure caused by severe snow or ice where heaters are fitted and working as designed
 +
|PNTS SNOW
 +
|----
 +
|YA
 +
|Lost path - regulated for train running less late
 +
|REG-ONTIME
 
|----
 
|----
|YA
+
|YB
|Lost path - regulated for train running on time
+
|Lost path - regulated for another later running train
|REG-ONTIME
+
|REG-LATE
 
|----
 
|----
|YB
+
|YC
|Lost path - regulated for another late running train
+
|Lost path - following train running less late
|REG-LATE
+
|FOL-ONTIME
 
|----
 
|----
|YC
+
|YD
|Lost path - following train running on time
+
|Lost path - following another ''later'' running train
|FOL-ONTIME
+
|FOL-LATE
 
|----
 
|----
|YD
+
|YE
|Lost path - following another late running train
+
|Waiting path onto/from single line
|FOL-LATE
+
|WTG S/LINE
 
|----
 
|----
|YE
+
|YG
|Lost path - waiting acceptance to single line
+
|Regulated in accordance with Regulation Policy
|TO S/LINE
+
|REG INSTRC
 
|----
 
|----
|YF
+
|YI
|Waiting for late running train off single line
+
|Late arrival of booked inward stock (inward and outward trains are operated under the same Track Access Contract)
|OFF SLINE
+
|INWD STOCK
 
|----
 
|----
|YG
+
|YJ
|Regulated in accordance with Regulation Policy
+
|Late arrival of booked inward train-crew (where the inward and outward trains worked by that train-crew are operated under the same Track Access Contract)
|CORRCT REG
+
|INWD CREW
 
|----
 
|----
|YH
+
|YL
|Late arrival of inward loco
+
|Waiting passenger connections within connections policy, contingency plan or otherwise agreed by NR/TOC
|INWD LOCO
+
|AUTHSD CON
 
|----
 
|----
|YI
+
|YM
|Late arrival of inward stock/unit
+
|Special stop orders within the contingency plan or agreed by NR/TOC
|INWD STOCK
+
|AUTHSD SSO
 
|----
 
|----
|YJ
+
|YN
|Late arrival of Traincrew on inward working
+
|Service Recovery- booked train crew, not available
|INWD CREW  
+
|FIND CREW
 
|----
 
|----
|YK
+
|YO
|Waiting connecting Freight or Res traffic to attach
+
|Waiting platform/station congestion/platform alteration
|CNNCTN TFC
+
|PLATFORM
 
|----
 
|----
|YL
+
|YP
|Waiting passenger connections within Connection Policy
+
|Delays due to diversions from booked route or line
|AUTHSD CON
+
|DIVERSION
 
|----
 
|----
|YM
+
|YQ
|Special stop orders agreed by Control
+
|Passenger overcrowding caused by a train being of short-formation
|AUTHSD SSO
+
|SHRT FRMD
 
|----
 
|----
|YN
+
|YR
|Booked traincrew not available for late running train
+
|Tactical cancellation for service recovery not caused by late running
|FIND CREW
+
|SR CNCL
 
|----
 
|----
|YO
+
|YU
|Waiting platform/station congestion/platform change
+
|Service Recovery- booked rolling stock, not available
|PLATFORM
+
|UNIT SWAPS
 
|----
 
|----
|YP
+
|YT
|Delayed by diverted train  
+
|Reactionary delay to a train that is not leaving the network, by a train that is leaving the network
|DIVERSION
+
|NON NR INF
 +
|-
 +
|YV
 +
|Tactical hold of a train at origin or at a strategic location en-route due to a line blocking incident on the train's booked route
 +
|HELD BACK
 
|----
 
|----
|YQ
+
|YX
|Passenger overcrowding caused by a train being of short- formation
+
|Passenger overcrowding caused by delay or cancellation of another train or its own late running
|SHRT FRMD
+
|OVER CRWD
 
|----
 
|----
|YU
+
|ZS
|Prime cause of most unit swaps
+
|No cause ascertainable for a Sub Threshold Delay causing Threshold Reactionary (where agreed by both Parties)
|UNIT SWAPS
+
|NOCAUSE AS
 
|----
 
|----
|YX
+
|ZU
|Passenger overcrowding caused by delay/cancellation of another train
+
|No Cause Identified After Full Investigation by Both Parties (A ‘Full Investigation’ will be one including all avenues of investigation agreed as reasonable by both Parties)
|OVER CRWD
+
|NOCAUSE ID
 
|----
 
|----
|ZW  
+
|ZW
|Unattributed Cancellations  
+
|Uninvestigated Cancellations System Roll-Ups only
|UNATR CAN
+
|SYS CANC
 
|----
 
|----
|ZX  
+
|ZX
|Unexplained late start
+
|Uninvestigated Late Start System Roll-Ups only
|UNEX L/S
+
|SYS L-STRT
 
|----
 
|----
|ZY  
+
|ZY
|Unexplained Station overtime
+
|Uninvestigated Station Overtime System Roll-Up only
|UNEX O/T
+
|SYS OTIME
 
|----
 
|----
|ZZ  
+
|ZZ
|Unexplained loss in running
+
|Uninvestigated Loss in Running System Roll-Up only
|UNEX L/R
+
|SYS LIR
 
|----
 
|----
 
|}
 
|}

Latest revision as of 17:47, 7 February 2022

The Delay Attribution Guide contains a list of delay attribution codes and reasons. The same codes are used in Train Cancellation messages sent on the Train Movements feed.

The codes in use as of April 2021 are listed here for reference.

Codes are grouped in to several sections:

  • A* - Freight Terminal Operations Causes
  • D* - Holding Codes
  • F* - Freight Operating Causes
  • I* and J* - Infrastructure causes
  • M* and N* - Mechanical or Fleet Engineer Causes
  • O* - Network Rail Operating causes
  • P* - Planned or excluded delays or cancellations
  • Q* - Network Rail Non-Operating causes
  • R* - Station Operating Causes
  • T* - Passenger Operating causes
  • V* - External events – TOC Responsibility
  • X* - External events - Network Rail
  • Y* - Reactionary Delays
  • Z* - Unexplained delays and cancellations

Delay Attribution Codes

Code Cause Abbreviation
AA Waiting acceptance into off Network Rail network Terminal or Yard ACCEPTANCE
AC Waiting train preparation or completion of TOPS list/RT3973 TRAIN PREP
AD Off Network Rail network Terminal or Yard staff shortage including reactionary congestion caused by the shortage WTG STAFF
AE Congestion in off Network Rail network Terminal or Yard CONGESTION
AG Wagon load incident including adjusting loads or open door LOAD INCDT
AH Customer or off Network Rail network yard equipment breakdown/reduced capacity YARD EQUIP
AJ Waiting Customer's traffic including release information and documentation TRAF DOC
AK Safety incidents and mishaps (e.g. derailments, fire or chemical spill) in off Network Rail network freight yard or terminal (including private sidings, and stations – where it affects FOC services) YARDSAFETY
AX Failure of off network infrastructure (FOC or private) OFFNET INF
AZ Other Freight Operating Company cause, to be specified, in off Network Rail network terminals or yards YARD OTHER
DA Non Technical Fleet Holding Code HOLD NT FL
DB Train Operations Holding Code HOLD T-OPS
DC Train Crew Causes Holding Code HOLD T-CRW
DD Technical Fleet Holding Code HOLD T FL
DE Station Causes Holding Code HOLD STN
DF External Causes Holding Code HOLD EXT
DG Freight Terminal and or Yard Holding Code HOLD YARD
DH Adhesion and or Autumn Holding Code HOLD AUTM
FA Dangerous goods incident DANG GOODS
FC Freight Train Driver error, SPAD, Wrong routing or Missed AWS/DSD FOC DRIVER
FE Train crew not available including after rest NO T-CREW
FF FOC Diagramming or Rostering issue FOC DIAG
FG Driver adhering to company professional driving standards or policy PRO DRIVER
FH FOC Planning issue (not diagramming or rostering) FOC PLAN
FI Delay due to incorrect ETCS system or equipment operation by Driver ETCS DVR
FJ FOC Control decision or directive FOC CONTRL
FK Train diverted or re-routed at FOC request DIVERT REQ
FL Train cancelled at FOC request or planned not to run CANCEL REQ
FM Tail lamp or head lamp out or incorrectly shown LAMP ISSUE
FO Time lost en-route believed to be Operator cause and information required from Operator (Ops Responsibility) LIR UNEX
FS Delay due to ETCS/ ERTMS on-board overriding driver command ETCS O-RDE
FW Late start or yard overtime not explained by Train Operator LATE START
FX Freight train running at lower class or speed than planned classification or overweight TRAIN SPEC
FZ Other FOC causes incl. cause to be specified, including mishaps. FOC OTHER
IA Signal failure (including no fault found) SIGNAL FLR
IB Points failure (including no fault found) POINTS FLR
IC Track circuit failure (including no fault found) TC FAILURE
ID Level crossing faults and failure incl. barrow/foot crossings and crossing treadles LEVEL XING
IE Signalling functional power supply failure SIG FUNC PWR
IF Train Describer/Panel/ARS/SSI/TDM/Remote Control failure PANEL FLR
IG Block failure BLOCK FLR
IH Power supply and distribution system failure PWR SUP DIS
II Signalling lineside cable fault SIG CABLE
IJ AWS/ATP/TPWS/Train Stop/On-track equipment failure AWS/ATP
IK Telecom equipment failure (including no fault found) TELECOMS
IL Token equipment failure (including no fault found) TOKEN FLR
IM Infrastructure Balise Failure (TASS / ETCS / ERTMS) BALISE FLR
IN HABD/Panchex/WILD/Wheelchex fault, failure or mis-detection HABD FAULT
IP Points failure caused by snow or frost where heaters are fitted but found to be not turned on, not operative or defective POINT HEAT
IQ Trackside sign blown down, fallen over, missing, defective, mis-placed TRACK SIGN
IR Broken/cracked/twisted/buckled/flawed rail RAIL FLAW
IS Track defects (other than rail defects) inc. fish plates, wet beds etc. TRACK FLT
IT Rough ride or bumps reported - cause not known or no fault found TRACK NFF
IV Cutting or embankment earthslip, rock fall or subsidence (not the result of severe weather on the day of failure) EARTHSLIP
IW Non severe weather - snow/ice/frost affecting infrastructure equipment INF WEATHR
I0 Telecom equipment legacy radio failure (RETB) RETB FLR
I1 Overhead line/3rd rail defect OHL/3 RAIL
I2 AC/DC trip (including no fault or cause found) AC/DC TRIP
I4 OHLE/3rd rail power supply failure or reduction SUPPLY FLR
I5 Possession over-run from planned work OVERRUN
I6 Delays as a result of line blocks / track patrols (including late handback) LINE BLOCK
I7 Engineer's train late into, from or failed in possession ENGNRS TRN
I8 Animal Strike or Incursion within the control of Network Rail ANIMAL
I9 Fires starting on Network Rail Infrastructure INFRA FIRE
JA TSR speed restrictions for track work outside of the Timetable Planning Rules TSRNOT EAS
JB Reactionary Delay to ‘P’ coded TSR TSR REACTN
JD Structures - Bridges/tunnels/buildings/retaining walls/sea defences (not bridge strikes) STRUCTURES
JF Off track asset defects or issues on the Network Rail network including fencing, gates, walkways, lighting (not due to vandalism or weather or where the asset is part of the station infrastructure) OFFTRK ASS
JG ESR/TSR due to works not completed or cancelled possession (where restriction did not exist prior to possession) ESR/TSR
JH Critical Rail Temperature speeds, (other than buckled rails) HEAT SPEED
JK Flooding not due to exceptional weather FLOODING
JL Safety related incident caused by maintenance or infrastructure staff oversight or error (not Operations staff) SAFETY INF
JP Failure to maintain vegetation within network boundaries in accordance with prevailing Network Rail standards, including where signals areobscured and a train strikes branches. VEGETATION
JR Delay due to RBC issues affecting ETCS / ATO operation (not balise related) RBC ETCS
JS Condition of Track TSR outside the Timetable Planning Rules TRACK COND
JT Points failure caused by snow or frost where heaters are not fitted. NO PNT HTR
JX Miscellaneous items on the track or railhead including litter, excluding leaves, demonstrated vandalism, weather or items fallen/thrown from trains MISC OBJCT
J0 Telecom equipment radio failure (GSM-R) GSM-R FLR
J2 Network Rail train dispatch equipment failure (including no fault found but excluding telecoms equipment) TRTS FLR
J3 Axle Counter Failure AXLE C FLR
J4 Infrastructure Safety Issue Reported by Member of the Public – No Fault Found MOP NFF
J5 Infrastructure Asset Fault Reported but Proven to be mistaken MIS REPORT
J6 Lightning strike against unprotected assets LIGHTNING
J7 ETCS/ ERTMS Equipment Failure (excluding communications link and balises) ETCS FLR
J8 Damage to infrastructure caused by on-track machine whilst operating in a possession OTM DAMAGE
J9 Preventative Maintenance to the infrastructure in response to a Remote Condition Monitoring Alert RCM ALERT
MB Electric loco failure, defect, attention. ELEC LOCO
MC Diesel loco failure, defect, attention. DIESL LOCO
MD Other technical failures below the solebar BELOW SBAR
ME Steam locomotive failure/defect/attention STEAM LOCO
ML Wagons, coaches and parcel vehicle faults WAGN/COACH
MN Brake and brake systemsfaults; including wheel flats where no other cause had been identified BRAKE/WHLS
MP Rail/ wheel interface, adhesion problems (including ice on the running rail) ADHESION
MR Sanders and scrubber faults SANDER
MS Planned underpowered or shortformed service and or vehicle, incl. exam set swaps ALOC STOCK
MT Confirmed train borne safety system faults (not cab based) SYST FAULT
MU Depot operating problem DEPOT OPS
MV Engineer’s on-track equipment failure outside possession ON-TRACK
MW Weather - effect on T&RS equipment WEATHR FLT
MY Coupler and Coupler system faults COUPLER
M1 Confirmed Pantograph ADD, shoe beam or associated system faults Incl. positive PANCHEX activations PANTO/SHOE
M2 Delay due to ATO / ETCS equipment ETCS
M7 Door and Door system faults DOORS
M8 Other technical failures above the Solebar ABOVE SBAR
M9 Reported fleet equipment defect - no fault found FLEET NFF
M0 Confirmed train cab based safety system fault (including GSM-R) CAB SAFETY
NA On-train TASS/TILT failure TASS/TILT
OA Regulation decision made with best endeavours ENDVR REG
OB Delayed by signaller not applying applicable regulating policy REGULATION
OC Signaller including mis-routing (not ERTM /ETCS related) SIGNALLER
OD Delays due to national, regional or route operations directives, or route control decisions or directive NR CONTROL
OE Failure to lay Sandite or operate Railhead Conditioning train as programmed RHC PROG
OF Delay due to incorrect ETCS system or equipment operation by Signaller / Controller ETCS CTRL
OG Ice on conductor rail/OHLE ICING
OH ARS / TMS / SARS software problem (excluding scheduling issues and technical failures) ARS / TMS
OJ Fire in station building or on platform, affecting operators not booked to call at that station STN FIRE
OK Delay caused by Operating staff oversight, issues or absence (excluding signallers and Control) OPTG STAFF
OL Signal Box not open during booked hours BOX CLOSED
OM Technical failure associated with a Railhead Conditioning train RHC FAIL
ON Delays not properly investigated by Network Rail MIS-INVEST
OQ Incorrect Simplifier SIMPLIFIER
OR LOM Directive or signaller correctly applying local box instructions BOX INSTR
OS Late start or delays to Railhead Conditioning (RHC) or Ghost Train due to its own activity and not in reaction to another incident. RHC LATE
OT Operational Safety TSR implemented for sighting issues relating to foot crossings, level crossings or signals (Not vegetation caused) SIGHT TSR
OU Delays not investigated by Network Rail NOT INVEST
OV Fire or evacuation due to fire alarm of Network Rail buildings other than stations not due to vandalism NR FIRE
OW Connections held where the Prime Incident causing delay to the incoming train is a FOC responsibility incident and the next departing service is scheduled to depart less than 60 minutes later than the train being held. FOC CONECT
OZ Other Network Rail Operating causes OPTG OTHER
PA Published TSR associated with Planned Engineering Works where time loss is within Engineering Allowance PLANND ENG
PB Published TSR due to condition of asset (not associated with Engineering Work) where time loss is within Engineering Allowance PLANND CON
PD System generated cancellation (NOT to be attributed to manually) SYSTM CANC
PF Planned engineering work where a published diversion/SLW is not provided for in the schedule but where time loss is within Engineering Allowance DIVRSN SLW
PG Planned cancellation where that cancellation isidentified and agreed prior to 22.00 the day before the schedule runs PLAND CAPE
PJ Cancellation of a duplicate or erroneous schedule or an identified duplicate, false or erroneous delay (NOT berth off set related) DUPLICATE
PL Exclusion commercially agreed and documented between Network Rail and Train Operator AGREED EXC
PN VSTP service delays of under 5 minutes caused by regulation and or time lost in running (VSTP Schedule delay ONLY where that delay causes no reactionary delay) VSTP DELAY
PT Authorised TRUST reporting anomalies or inaccuraciesrelating to berth off sets TRUST ANOM
QA WTT Schedule and or LTP process including incorrect simplifiers (where produced by Capacity Planning). WTT SCHED
QB Planned engineering work- diversion/SLW not timetabled (outside the Timetable Planning Rules.) DIVRSN/SLW
QH Adhesion problems due to leaf contamination RAILCONTAM
QI Cautioning due to railhead leaf contamination CAUTCONTAM
QJ Special working for leaf-fall track circuit operation LEAVES T/C
QM Train Schedule VAR/STP process including incorrect simplifiers (where produced by Capacity Planning). STP SCHED
QN VSTP schedule / VSTP process (TSI created schedule) VSTP SCHED
QP Reactionary Delay to “P” coded Possession PLND REACT
QT Delay accepted by Network Rail as part of a commercial agreement where no substantive delay reason is identified COMMERCIAL
RB Passengers joining/alighting PASSENGERS
RC Pre-booked assistance for a person with reduced mobility joining/alighting BKD ASSIST
RD Attaching/detaching/Shunter/watering ATT/DETACH
RE Lift/escalator defect/failure LIFT/ESC
RH Station evacuated due to fire alarm FIRE ALARM
RI Waiting connections - not authorised by TOC Control UNAUTH CON
RJ Special Stop Orders - not authorised by TOC Control UNAUTH SSO
RK Waiting passenger connections authorised by TOC but out with TOC/Network Rail connection policy AUTH CON
RL Special Stop Orders authorised by TOC Control (including any delay at point of issue) AUTH SSO
RM Waiting connections from other transport modes XTNL CONN
RO Passengers taken ill on platform PASS ILL
RP Passenger dropped object whilst boarding/alighting from train and train delayed at TOC request PASS DROP
RQ Un-booked assistance for a person with reduced mobility joining/alighting UBKD ASST
RR Loading or unloading reserved bicycles BIKE RSVD
RS Loading or unloading unreserved bicycles BIKE URSVD
RT Loading excessive luggage EXCES LUGG
RU Locating lost luggage LOST LUGG
RV Customer Information System failure PASS INFO
RW Station flooding (including issues with drains) not the result of weather, where the water has not emanated from Network Rail maintained infrastructure/network STN FLOOD
RX Station delays as a result of overcrowding due to unplanned events or incidents (e.g result of line or station closure) where causal event is not determined. UNPL EVENT
RY Mishap - Station operating causes STN MISHAP
RZ Other Station operating causes STN OTHER
R1 Incorrect train dispatch by station staff DISPATCH
R2 Late TRTS given by station staff LATE TRTS
R3 Station staff unavailable - missing or uncovered STAFF MSNG
R4 Station staff split responsibility - unable to cover all duties STAFF DUTY
R5 Station staff error - e.g. wrong announcements, misdirection STAFF ERR
R7 Station delays as a result of overcrowding due to planned events(e.g.sports fixtures, concerts) PLND EVENT
R8 Delay at Station believed to be Operator cause and information required from Operator (Station Responsibility) STN UNEX
TA Train-crew/loco/stock/unit diagram issues DIAG ISSUE
TB Train cancelled or delayed at Train Operator’s request TOC REQEST
TF Seat reservation problems SEAT RESVN
TG Driver TOC DRIVER
TH (Senior) Conductor/Train Manager T-MGR/COND
TI Train-crew rostering problem ROSTERING
TJ Tail lamp or headlamp missing, not lit or wrongly displayed LAMP ISSUE
TK Train catering staff (including Contractors) CATERING
TM Connection authorised by TOC but out with connection policy AUTH CONN
TN Late presentation from the continent LATE CHUNL
TO Time lost en-route believed to be Operator cause and information required from Operator (Ops Responsibility) LIR UNEX
TP Special Stop Orders AUTH SSO
TR Train Operating Company Directive TOC DIRECT
TS Delay due to incorrect ETCS system or equipment operation by Driver ETCS DVR
TT Autumn-attribution Neutral Zone delays (See Supplementary Autumn Attribution Guidance) LF NEUTRAL
TW Driver adhering to company professional driving standards or policy PRO DRIVER
TX Delays incurred on non-Network Rail running lines or networks including London Underground (except fleet related delays) OTH NETWK
TY Mishap-Train Operating Company cause TOC MISHAP
TZ Other Passenger Train Operating Company causes TOC OTHER
T2 Delay at unstaffed station to non-DOO train NONDOO STN
T3 Waiting connections from other transport modes XTNL CONN
T4 Loading Supplies (including catering) SUPPLIES
T8 Delay at Station believed to be Operator cause and information required from Operator ( Ops Responsibility) STN UNEX
VA Disorder, drunks or trespass DISORDER
VB Vandalism and or theft VANDALISM
VC Fatalities and or injuries sustained whilst on a platform as the result of being struck by a train or falling from a train FATALITIES
VD Passenger taken ill on train ILL PASS
VE Ticket irregularities or refusals to pay TICKET IRR
VF Fire caused by vandalism VANDL FIRE
VG Police searching train POLICE-TRN
VH Passenger Communication cord, door egress or emergency train alarm operated PASS COMM
VI Security alert affecting stations and depots SEC ALERT
VR Driver adhering to company professional driving standards or policies during severe weather conditions that are not fleet related PRO DRIVER
VW Severe weather affecting passenger fleet equipment including following company standards/policies or Rule Book instructions SEV WEATHR
VX External events occurring on the LUL or other non NR running lines LUL CAUSES
VZ Other passenger or external causes the responsibility of TOC EXT OTHER
V8 Train striking or being struck by a bird BIRDSTRIKE
XA Trespass (Including non-intentional) TRESPASS
XB Vandalism or theft (including the placing of objects on the line) VANDALS
XC Fatalities or injuries caused by being hit by train (Including non-intentional) FATALITIES
XD Level Crossing Incidents including misuse and emergency services being prioritised over rail services. XING INCDT
XF Police searching the line POLICE-RLY
XH Severe heat affecting infrastructure the responsibility of Network Rail (excluding Heat related speed restrictions) SEV HEAT
XI Security alert affecting the Network Rail Network (including line blocks taken for emergency services attending an off Network Rail network incident) SEC ALERT
XK National Grid power failure - local area is also affected (includes ourages, surges and blips where a standby generator or UPS is installed and working) EXTL POWER
XL Fire external to but directly affecting the Network Rail network (including line blocks taken for emergency services attending an incident not directly affecting the Network Rail network) EXTL FIRES
XM External utility incident including gas, water mains and overhead power lines GAS/WATER
XN Road or crossing related incidents including cars on the line, crossing misuse and priority given to emergency services over trains (excluding bridge strikes) ROAD INCDT
XO External trees, building or structures encroaching or falling onto Network Rail network infrastructure (not due to weather or vandalism) also including aircraft and airport safety or operational related incidents. EXT OBJECT
XP Bridge Strike BRIDGE HIT
XQ Swing bridge open for river or canal traffic BRIDGE OPN
XR Cable vandalism or theft CABLE VAND
XT Severe snow or ice affecting infrastructure which is the responsibility of Network Rail (including implementation of Key Route Strategy) SEV SNOW
XU Sunlight on signal or dispatch equipment where all reasonable mitigation has been taken SUN OBSCUR
XV Fire or evacuation due to fire alarm of Network Rail buildings due to vandalism (not including stations) VANDL FIRE
XW High winds affecting infrastructure the responsibility of Network Rail including objects on the line due to the effect of weather HIGH WIND
X1 Visibility in semaphore signalled areas, orspecial working for fog and falling snow implemented by Network Rail – in all signalling areas (including special working for level crossing visibility) SPL WRKING
X2 Severe flooding beyond that which could be mitigated on Network Rail infrastructure SEV FLOOD
X3 Lightning Strike – damage to protected systems. LIGHTNING
X4 Blanket speed restriction or Key Route Strategy implemented in accordance with Group Standards or other national operational safety instruction KRS / BLKT
X8 Animal Strike or incursion not within the control of Network Rail EXT ANIMAL
X9 Points failure caused by severe snow or ice where heaters are fitted and working as designed PNTS SNOW
YA Lost path - regulated for train running less late REG-ONTIME
YB Lost path - regulated for another later running train REG-LATE
YC Lost path - following train running less late FOL-ONTIME
YD Lost path - following another later running train FOL-LATE
YE Waiting path onto/from single line WTG S/LINE
YG Regulated in accordance with Regulation Policy REG INSTRC
YI Late arrival of booked inward stock (inward and outward trains are operated under the same Track Access Contract) INWD STOCK
YJ Late arrival of booked inward train-crew (where the inward and outward trains worked by that train-crew are operated under the same Track Access Contract) INWD CREW
YL Waiting passenger connections within connections policy, contingency plan or otherwise agreed by NR/TOC AUTHSD CON
YM Special stop orders within the contingency plan or agreed by NR/TOC AUTHSD SSO
YN Service Recovery- booked train crew, not available FIND CREW
YO Waiting platform/station congestion/platform alteration PLATFORM
YP Delays due to diversions from booked route or line DIVERSION
YQ Passenger overcrowding caused by a train being of short-formation SHRT FRMD
YR Tactical cancellation for service recovery not caused by late running SR CNCL
YU Service Recovery- booked rolling stock, not available UNIT SWAPS
YT Reactionary delay to a train that is not leaving the network, by a train that is leaving the network NON NR INF
YV Tactical hold of a train at origin or at a strategic location en-route due to a line blocking incident on the train's booked route HELD BACK
YX Passenger overcrowding caused by delay or cancellation of another train or its own late running OVER CRWD
ZS No cause ascertainable for a Sub Threshold Delay causing Threshold Reactionary (where agreed by both Parties) NOCAUSE AS
ZU No Cause Identified After Full Investigation by Both Parties (A ‘Full Investigation’ will be one including all avenues of investigation agreed as reasonable by both Parties) NOCAUSE ID
ZW Uninvestigated Cancellations System Roll-Ups only SYS CANC
ZX Uninvestigated Late Start System Roll-Ups only SYS L-STRT
ZY Uninvestigated Station Overtime System Roll-Up only SYS OTIME
ZZ Uninvestigated Loss in Running System Roll-Up only SYS LIR


Network Rail Open Data Feeds
Data Feeds About the Feeds Account States Durable Subscriptions Example Code ( PHP / C# / Java / Ruby / Node.js) • Advanced UsesFAQ 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 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