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1L12 0723 Carmarthen to London Paddington
Departing on 6th January 2026

operated by
Great Western Railway
5 coaches
Carmarthen - Swansea
800014
10 coaches
Swansea - London Paddington
800014
800023
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
1
0723
0723
0723
U1
Carmarthen Jn [XCI]
pass
0725
pass
0724
-1
UU
Ferryside [FYS]
0734
0735
0734
0735
0733
N/R
-1
Bertwyn Level Crossing
pass
0738½
No report
Kidwelly [KWL]
1
0741
0741
0740½
0741½
0740
0741
Kidwelly Junction
pass
0742½
No report
Pembrey & Burry Port [PBY]
0748
0749
0747½
0749
N/R
0749
Llanelli [LLE]
2
0755
0756
0755
0756½
0755¼
0756¼
Llandeilo Jn
pass
0759
pass
0758½
Duffryn West
pass
0759½
pass
0758¾
Gowerton [GWN]
2
pass
0803
pass
0801½
-1
Cockett West
1
pass
0804½
pass
0803¼
-1
Swansea Loop West
pass
0808½
pass
0807
-1
UM
USL
Swansea Loop East
pass
0810½
pass
0809¼
-1
USL
USM
Swansea [SWA]
½
Pathed as Class 80x on diesel from here
joins with 5L12 from Swansea
Service reverses here, gains coaches here
3
0813
0823
0813
0823
0811¾
0823½
USM
USM
Swansea Loop East
pass
0825
pass
0825¼
Landore Junction
pass
0826
pass
0826½
USM
UM
Llansamlet [LAS]
2
pass
0829
pass
0829½
Skewen [SKE]
2
pass
0830½
pass
0831¾
+1
Neath [NTH]
2
0834
0835
0833½
0835
0834¼
0835½
Briton Ferry West Jn
pass
0837½
pass
0838
Port Talbot Parkway [PTA]
2
0841
0842
0841
0842½
0841¾
0842½
Port Talbot East
pass
0843½
No report
Margam Middle Jn
pass
0844½
pass
0844
Margam East Jn
pass
0845½
pass
0845¼
Margam Moors Jn.
pass
0846½
pass
0846¾
UM
Pyle [PYL]
2
pass
0848
pass
0848
Stormy
pass
0849½
pass
0849¾
At platform
Bridgend [BGN]
2
0854
0855
0853½
0855
0853½
0855¼
UM
UM
Tremains
pass
0856
pass
0857¼
+1
Pencoed Up Passenger Loop
pass
0858½
No report
Pencoed [PCD]
2
pass
0859
pass
0859¼
Llanharan [LLR]
1
pass
0901
pass
0901¼
Llantrisant [LTI]
pass
0902½
No report
Pontyclun [PYC]
1
2
pass
0903
pass
0903¼
Miskin
pass
0905
pass
0905¼
St Fagans L C
pass
0909½
pass
0909¼
Leckwith North Jn
pass
0912
pass
0911½
UM
C
Cardiff West
pass
0914½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
0915
0919
0915½
0919
0914¾
0918¾
C
B
Cardiff East
pass
0919½
pass
0920
Long Dyke Jn
pass
0921
pass
0921
B
UM
Moorland Road Junction
pass
0921½
pass
0921¾
Pengam Jn
pass
0922
pass
0922
Rumney River Bridge Jn
pass
0922
pass
0922½
Marshfield
pass
0925
pass
0925
Ebbw Jn
pass
0927½
pass
0927¾
UM
UM
Gaer Jn
pass
0928
pass
0928¼
UM
Newport (South Wales) [NWP]
1
3
0930
0933
0930
0933
0930½
0932¾
UM
UM
Maindee West Jn
pass
0935
pass
0934¼
Maindee East Jn
pass
0935½
pass
0934¾
ML
East Usk Jn.
pass
0936½
pass
0935½
Llanwern West Jn
pass
0937½
pass
0936½
Magor
pass
0941
pass
0939½
-1
Severn Tunnel Junction [STJ]
4
pass
0942½
pass
0942
UM
UT
Severn Tunnel West
pass
0943½
pass
0943
Severn Tunnel East
pass
0947
pass
0946½
Pilning [PIL]
1
1
pass
0948
pass
0947½
Patchway [PWY]
1
pass
0951½
pass
0951
Bristol Parkway [BPW]
4
0953
0956
0953
0956
0954¼
0956
UT
UB
Westerleigh Jn
pass
1000
pass
1000½
Chipping Sodbury
pass
1001½
pass
1002
Badminton
pass
1003½
pass
1004¼
Hullavington
pass
1006½
pass
1006¾
Little Somerford
pass
1009
pass
1009¾
Wootton Bassett Jn
1
pass
1013
pass
1013
UB
UM
Rushey Platt
pass
1017
pass
1016¾
UM
UR
Swindon [SWI]
2
1
1019
1022
1018½
1022½
1019
1022
UR
UM
Highworth Jn
pass
1023½
pass
1024¼
Swindon Stratton Green
pass
1024
pass
1024¾
Swindon South Marston Jn
pass
1025
pass
1025
Bourton
pass
1026½
pass
1026½
Uffington (Oxfordshire)
1
pass
1031
pass
1029¼
-1
Challow
pass
1033½
pass
1030½
-3
Wantage Road
1
pass
1035
pass
1032¾
-2
Steventon
pass
1037½
pass
1034¼
-3
Milton Junction
pass
1038
pass
1035
-3
Foxhall Jn [XJF]
pass
1039
pass
1036
-3
Didcot West End
pass
1039½
No report
Didcot Parkway [DID]
2
pass
1039½
pass
1036¾
-2
Didcot East Jn
pass
1039½
pass
1037
-2
Moreton Cutting
pass
1040½
pass
1037¼
-3
Cholsey [CHO]
2
pass
1041½
pass
1038¾
-2
Goring & Streatley [GOR]
1
2
pass
1043½
pass
1040½
-2
ML
Pangbourne [PAN]
pass
1045½
pass
1042¼
-3
Tilehurst [TLH]
2
pass
1047½
pass
1043½
-4
Tilehurst East Jn.
pass
1048
pass
1043¾
-4
Reading High Level Jn
pass
1049
pass
1045¼
-3
ML
Reading Main Line West
pass
1049½
pass
1046
-3
Reading [RDG]
11
1050
1056
1050½
1056
1047
1056¼
UM
UM
Reading Main Line East
pass
1056½
pass
1056¾
Kennet Bridge Jn
pass
1057
pass
1057¾
Twyford West
pass
1059½
pass
1100½
+1
Twyford [TWY]
2
pass
1100
pass
1101½
+1
ML
Ruscombe
pass
1100½
pass
1102
+1
Maidenhead [MAI]
2
pass
1103½
pass
1105½
+2
Maidenhead East
pass
1104
pass
1105½
+1
Taplow [TAP]
2
pass
1104½
pass
1106¼
+2
Burnham [BNM]
pass
1105
pass
1106¾
+1
Slough West
pass
1106
pass
1108
+1
Slough [SLO]
3
pass
1106½
pass
1108¾
+2
Dolphin Jn
pass
1107
pass
1109¼
+2
Langley [LNY]
2
pass
1107½
pass
1110¼
+2
Iver [IVR]
2
pass
1108½
pass
1111¼
+3
West Drayton Jcn
pass
1109
pass
1111¾
+3
West Drayton [WDT]
2
pass
1109
pass
1112¼
+3
West Drayton East
pass
1109
pass
1112¼
+3
Stockley Junction
½
pass
1109½
pass
1112½
+3
ML
ML
Heathrow Airport Jn
pass
1110½
pass
1113¼
+2
Hayes & Harlington [HAY]
2
pass
1110½
pass
1113½
+3
Southall West Jn
pass
1111
pass
1114
+3
Southall [STL]
1
2
pass
1111½
pass
1114
+2
ML
Southall East Jn
pass
1111½
pass
1114¼
+2
Hanwell [HAN]
1
pass
1112½
pass
1115¼
+2
West Ealing Junction
pass
1113
pass
1115¾
+2
West Ealing [WEA]
pass
1113
pass
1116
+3
Ealing Broadway [EAL]
2
pass
1113½
pass
1116½
+3
Acton West
1
pass
1114
pass
1116¾
+2
ML
ML
Acton Main Line [AML]
2
pass
1115
pass
1117½
+2
Friars Jn
pass
1115½
No report
Old Oak Common West
pass
1116
pass
1118½
+2
Old Oak Common East
pass
1116½
pass
1120
+3
Ladbroke Grove
pass
1117½
pass
1121
+3
UM
2
Portobello Jn (London)
pass
1118
pass
1121½
+3
Royal Oak Junction
pass
1119
pass
1122¾
+3
London Paddington [PAD]
4
1120
1120
1124¾
+4
2
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