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1L12 0723 Carmarthen to London Paddington
Departing on 17th December 2025

operated by
Great Western Railway
5 coaches
Carmarthen - Swansea
800019
5 coaches
Swansea - London Paddington
800019
GBTT
WTT
RTTRealtime
Route
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
Carmarthen [CMN]
Pathed as Class 80x on diesel at 125mph
2
0723
0723
0722
-1
U2
Carmarthen Jn [XCI]
pass
0725
pass
0724
-1
UU
Ferryside [FYS]
0734
0735
0734
0735
No report
Bertwyn Level Crossing
pass
0738½
No report
Kidwelly [KWL]
1
0741
0741
0740½
0741½
No report
Kidwelly Junction
pass
0742½
No report
Pembrey & Burry Port [PBY]
0748
0749
0747½
0749
No report
Llanelli [LLE]
2
0755
0756
0755
0756½
0756¾
0757½
+1
Llandeilo Jn
pass
0759
pass
0800
+1
Duffryn West
pass
0759½
pass
0800½
+1
Gowerton [GWN]
2
pass
0803
pass
0803¼
Cockett West
1
pass
0804½
pass
0805¼
Swansea Loop West
pass
0808½
pass
0809¼
UM
USL
Swansea Loop East
pass
0810½
pass
0811
USL
USM
Swansea [SWA]
½
Pathed as Class 80x on diesel from here
joins with 5L12 from Swansea
Service reverses here, gains coaches here
1
0813
0823
0813
0823
0813½
0822½
USM
USM
Swansea Loop East
pass
0825
pass
0824¼
Landore Junction
pass
0826
pass
0825½
USM
UM
Llansamlet [LAS]
2
pass
0829
pass
0828½
Skewen [SKE]
2
pass
0830½
pass
0830½
Neath [NTH]
2
0834
0835
0833½
0835
0833
0835
Briton Ferry West Jn
pass
0837½
pass
0837¾
Port Talbot Parkway [PTA]
2
0841
0842
0841
0842½
0841½
0842½
Port Talbot East
pass
0843½
No report
Margam Middle Jn
pass
0844½
pass
0844
Margam East Jn
pass
0845½
pass
0845½
Margam Moors Jn.
pass
0846½
pass
0847
UM
Pyle [PYL]
2
pass
0848
pass
0848¾
Stormy
pass
0849½
pass
0850¾
+1
At platform
Bridgend [BGN]
2
0854
0855
0853½
0855
0854½
0856¼
+1
UM
UM
Tremains
pass
0856
pass
0858½
+2
Pencoed Up Passenger Loop
pass
0858½
No report
Pencoed [PCD]
2
pass
0859
pass
0900¾
+1
Llanharan [LLR]
1
pass
0901
pass
0902¾
+1
Llantrisant [LTI]
pass
0902½
No report
Pontyclun [PYC]
1
2
pass
0903
pass
0904¾
+1
Miskin
pass
0905
pass
0906¾
+1
St Fagans L C
pass
0909½
pass
0910½
+1
Leckwith North Jn
pass
0912
pass
0912¾
UM
C
Cardiff West
pass
0914½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
0915
0919
0915½
0919
0916
0919½
C
B
Cardiff East
pass
0919½
pass
0920¾
+1
Long Dyke Jn
pass
0921
pass
0922
+1
B
UM
Moorland Road Junction
pass
0921½
pass
0922¾
+1
Pengam Jn
pass
0922
pass
0923¼
+1
Rumney River Bridge Jn
pass
0922
pass
0923¾
+1
Marshfield
pass
0925
pass
0926¾
+1
Ebbw Jn
pass
0927½
pass
0929¼
+1
UM
UM
Gaer Jn
pass
0928
pass
0929¾
+1
UM
Newport (South Wales) [NWP]
1
3
0930
0933
0930
0933
0932
0933¼
UM
UM
Maindee West Jn
pass
0935
pass
0934¾
Maindee East Jn
pass
0935½
pass
0935¼
ML
East Usk Jn.
pass
0936½
pass
0936¼
Llanwern West Jn
pass
0937½
pass
0937¼
Magor
pass
0941
pass
0940½
Severn Tunnel Junction [STJ]
4
pass
0942½
pass
0943¼
UM
UT
Severn Tunnel West
pass
0943½
pass
0944
Severn Tunnel East
pass
0947
pass
0947¾
Pilning [PIL]
1
1
pass
0948
pass
0949¼
+1
Patchway [PWY]
1
pass
0951½
pass
0952¾
+1
Bristol Parkway [BPW]
3
0953
0956
0953
0956
0954¾
0956½
UT
UB
Westerleigh Jn
pass
1000
pass
1002
+2
Chipping Sodbury
pass
1001½
pass
1004
+2
Badminton
pass
1003½
pass
1007¼
+3
Hullavington
pass
1006½
pass
1011
+4
Little Somerford
pass
1009
pass
1014½
+5
Wootton Bassett Jn
1
pass
1013
pass
1017½
+4
UB
UM
Swindon [SWI]
2
1
1019
1022
1018½
1022½
1024
1025½
+3
UR
UM
Highworth Jn
pass
1023½
pass
1027¾
+4
Swindon Stratton Green
pass
1024
pass
1028¼
+4
Swindon South Marston Jn
pass
1025
pass
1029
+4
Bourton
pass
1026½
pass
1031
+4
Uffington (Oxfordshire)
1
pass
1031
pass
1035
+4
Challow
pass
1033½
pass
1036¼
+2
Wantage Road
1
pass
1035
pass
1039
+4
Steventon
pass
1037½
pass
1040½
+3
Milton Junction
pass
1038
pass
1041½
+3
Foxhall Jn [XJF]
pass
1039
pass
1042½
+3
Didcot West End
pass
1039½
No report
Didcot Parkway [DID]
2
pass
1039½
pass
1043¼
+3
Didcot East Jn
pass
1039½
pass
1043½
+3
Moreton Cutting
pass
1040½
pass
1043¾
+3
Cholsey [CHO]
2
pass
1041½
pass
1045½
+3
Goring & Streatley [GOR]
1
2
pass
1043½
pass
1047½
+4
ML
Pangbourne [PAN]
pass
1045½
pass
1049½
+4
Tilehurst [TLH]
2
pass
1047½
pass
1050¾
+3
Tilehurst East Jn.
pass
1048
pass
1051
+3
Reading High Level Jn
pass
1049
pass
1052½
+3
ML
Reading Main Line West
pass
1049½
pass
1053
+3
Reading [RDG]
11
1050
1056
1050½
1056
1054
1056¾
UM
UM
Reading Main Line East
pass
1056½
pass
1057¼
Kennet Bridge Jn
pass
1057
pass
1058
+1
Twyford West
pass
1059½
pass
1100¼
Twyford [TWY]
2
pass
1100
pass
1101
+1
ML
Ruscombe
pass
1100½
pass
1101¼
Maidenhead [MAI]
2
pass
1103½
pass
1104¼
Maidenhead East
pass
1104
pass
1104¼
Taplow [TAP]
2
pass
1104½
pass
1105
Burnham [BNM]
pass
1105
pass
1105¼
Slough West
pass
1106
pass
1106½
Slough [SLO]
3
pass
1106½
pass
1107¼
Dolphin Jn
pass
1107
pass
1107½
Langley [LNY]
2
pass
1107½
pass
1108
Iver [IVR]
2
pass
1108½
pass
1108¾
West Drayton Jcn
pass
1109
pass
1109¼
West Drayton [WDT]
2
pass
1109
pass
1109½
West Drayton East
pass
1109
pass
1109½
Stockley Junction
½
pass
1109½
pass
1109¾
ML
ML
Heathrow Airport Jn
pass
1110½
pass
1110¼
Hayes & Harlington [HAY]
2
pass
1110½
pass
1110½
Southall West Jn
pass
1111
pass
1111
Southall [STL]
1
2
pass
1111½
pass
1110¾
ML
Southall East Jn
pass
1111½
pass
1111
Hanwell [HAN]
1
pass
1112½
pass
1112
West Ealing Junction
pass
1113
pass
1112½
West Ealing [WEA]
pass
1113
pass
1112¾
Ealing Broadway [EAL]
2
pass
1113½
pass
1113¼
Acton West
1
pass
1114
pass
1113¾
ML
ML
Acton Main Line [AML]
2
pass
1115
pass
1114¼
Friars Jn
pass
1115½
No report
Old Oak Common West
pass
1116
pass
1115
Old Oak Common East
pass
1116½
pass
1115¾
Ladbroke Grove
pass
1117½
pass
1116¾
UM
3
Portobello Jn (London)
pass
1118
pass
1117¼
Royal Oak Junction
pass
1119
pass
1118½
London Paddington [PAD]
4
1120
1120
1120½
3
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