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1L16 0921 Carmarthen to London Paddington
Departing on 29th December 2025

operated by
Great Western Railway
GBTT
WTT
Route
Location
Pl
Arr
Dep
Arr
Dep
Path
Line
Carmarthen [CMN]
2
0921
0921
Carmarthen Jn [XCI]
pass
0923
Ferryside [FYS]
pass
0931½
Bertwyn Level Crossing
pass
0934
Kidwelly [KWL]
1
pass
0935½
Pembrey & Burry Port [PBY]
0941
0942
0940½
0942
Llanelli [LLE]
UPL
0948
0950
0948
0950
Llandeilo Jn
pass
0952½
Duffryn West
pass
0953
Cockett West
1
pass
0958
Swansea Loop West
½
pass
1002
Swansea Loop East
pass
1004½
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here, gains coaches here
3
1007
1016
1007
1016
Swansea Loop East
pass
1017½
Neath [NTH]
1027
1028
1026½
1028
Briton Ferry West Jn
pass
1030½
Port Talbot Parkway [PTA]
2
1034
1035
1034
1035½
Margam East Jn
pass
1038½
Margam Moors Jn.
pass
1039½
Stormy
pass
1042½
Bridgend [BGN]
2
1047
1048
1046½
1048
Pencoed [PCD]
pass
1052
Pontyclun [PYC]
1
pass
1056
Leckwith North Jn
pass
1106½
Ninian Park [NNP]
1
pass
1107½
Penarth Curve North Jn
4
pass
1108½
Cardiff Radyr Branch Jn
pass
1113½
UR
Cardiff Central [CDF]
4
1115
1118
1116
1118
D
Long Dyke Jn
pass
1120
ML
Marshfield
pass
1124½
Ebbw Jn
pass
1127
Gaer Jn
pass
1127½
UM
Newport (South Wales) [NWP]
Pathed as Class 80x on electric from here
3
1129
1131
1129½
1131½
ML
Maindee West Jn
pass
1132½
Maindee East Jn
pass
1133
ML
Llanwern West Jn
2
pass
1135
Severn Tunnel Junction [STJ]
4
pass
1142
Severn Tunnel West
pass
1143
Severn Tunnel East
pass
1146½
Pilning [PIL]
1
1
pass
1147½
Patchway [PWY]
1
pass
1151
Bristol Parkway [BPW]
4
1154
1155
1153½
1155½
Westerleigh Jn
pass
1159½
Hullavington
pass
1206
Wootton Bassett Jn
1
pass
1212½
Swindon [SWI]
3
1218
1220
1218
1220
Uffington (Oxfordshire)
pass
1226½
Challow
pass
1228
Wantage Road
1
pass
1229½
Didcot Parkway [DID]
2
pass
1234
ML
Goring & Streatley [GOR]
1
pass
1238
ML
Reading High Level Jn
pass
1243½
ML
Reading [RDG]
11
1244
1248
1245
1248
UML
Kennet Bridge Jn
pass
1249
ML
Twyford [TWY]
2
pass
1252
ML
Maidenhead [MAI]
2
pass
1255½
ML
Slough [SLO]
2
3
pass
1258½
ML
Stockley Junction
pass
1303½
ML
ML
Heathrow Airport Jn
½
pass
1304
ML
Southall [STL]
½
2
pass
1305½
ML
Acton West
1
pass
1307½
ML
ML
Ladbroke Grove
pass
1311
ML
3
Portobello Jn (London)
½
pass
1311½
3
Royal Oak Junction
pass
1313
3
London Paddington [PAD]
forms 1B17 to Carmarthen
3
1314
1314
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