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1L12 0723 Carmarthen to London Paddington
Departing on 15th April 2026

operated by
Great Western Railway
GBTT
WTT
Route
Location
Pl
Arr
Dep
Arr
Dep
Path
Line
Carmarthen [CMN]
2
0723
0723
Carmarthen Jn [XCI]
pass
0725
Ferryside [FYS]
0734
0735
0734
0735
Bertwyn Level Crossing
pass
0738½
Kidwelly [KWL]
1
0741
0741
0740½
0741½
Pembrey & Burry Port [PBY]
0748
0749
0747½
0749
Llanelli [LLE]
UPL
0755
0756
0755
0756½
Llandeilo Jn
pass
0759
Duffryn West
pass
0759½
Cockett West
1
pass
0804½
Swansea Loop West
pass
0808½
Swansea Loop East
pass
0810½
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
Swansea Loop East
pass
0825
Neath [NTH]
0834
0835
0833½
0835
Briton Ferry West Jn
pass
0837½
Port Talbot Parkway [PTA]
2
0841
0842
0841
0842½
Margam East Jn
pass
0845½
Margam Moors Jn.
pass
0846½
Stormy
pass
0849½
Bridgend [BGN]
2
0854
0855
0853½
0855
Pencoed [PCD]
pass
0859
Pontyclun [PYC]
1
pass
0903
Leckwith North Jn
pass
0912
C
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
0915
0919
0915½
0919
B
Long Dyke Jn
pass
0921
ML
Marshfield
pass
0925
Ebbw Jn
pass
0927½
Gaer Jn
pass
0928
UM
Newport (South Wales) [NWP]
1
3
0930
0933
0930
0933
ML
Maindee West Jn
pass
0935
Maindee East Jn
pass
0935½
ML
Llanwern West Jn
pass
0937½
Severn Tunnel Junction [STJ]
4
pass
0942½
Severn Tunnel West
pass
0943½
Severn Tunnel East
pass
0947
Pilning [PIL]
1
1
pass
0948
Patchway [PWY]
1
pass
0951½
Bristol Parkway [BPW]
3
0953
0956
0953
0956
Westerleigh Jn
pass
1000
Hullavington
pass
1006½
Wootton Bassett Jn
1
pass
1013
Swindon [SWI]
2
1
1019
1022
1018½
1022½
Uffington (Oxfordshire)
1
pass
1031
Challow
pass
1033½
Wantage Road
1
pass
1035
Didcot Parkway [DID]
2
pass
1039½
ML
Goring & Streatley [GOR]
1
pass
1043½
ML
Reading High Level Jn
pass
1049
ML
Reading [RDG]
11
1050
1056
1050½
1056
UML
Kennet Bridge Jn
pass
1057
ML
Twyford [TWY]
2
pass
1100
ML
Maidenhead [MAI]
2
pass
1103½
ML
Slough [SLO]
3
pass
1106½
ML
Stockley Junction
½
pass
1109½
ML
ML
Heathrow Airport Jn
pass
1110½
ML
Southall [STL]
1
2
pass
1111½
ML
Acton West
1
pass
1114
ML
ML
Ladbroke Grove
pass
1117½
ML
3
Portobello Jn (London)
pass
1118
3
Royal Oak Junction
pass
1119
3
London Paddington [PAD]
4
1120
1120
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