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1L16 0921 Carmarthen to London Paddington
Departing on 18th December 2025

operated by
Great Western Railway
5 coaches
Carmarthen - Swansea
800009
10 coaches
Swansea - London Paddington
800009
800010
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
0921
0921
0921
U2
Carmarthen Jn [XCI]
pass
0923
pass
0923
UU
Ferryside [FYS]
pass
0931½
pass
0931
Bertwyn Level Crossing
pass
0934
No report
Kidwelly [KWL]
1
pass
0935½
pass
0935
Kidwelly Junction
pass
0936
No report
Pembrey & Burry Port [PBY]
0941
0942
0940½
0942
0946
0948
+6
Llanelli [LLE]
2
0948
0950
0948
0950
0953¼
0954¾
+4
Llandeilo Jn
pass
0952½
pass
0957¼
+4
Duffryn West
pass
0953
pass
0957½
+4
Gowerton [GWN]
2
pass
0956½
pass
1000¼
+4
Cockett West
1
pass
0958
pass
1002
+4
Swansea Loop West
½
pass
1002
pass
1005½
+3
UM
USL
Swansea Loop East
pass
1004½
pass
1007½
+3
USL
USM
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here, gains coaches here
3
1007
1022
1007
1022
1009¾
1021¼
USM
USM
Swansea Loop East
pass
1023½
pass
1023
Landore Junction
pass
1024½
pass
1024¼
USM
UM
Llansamlet [LAS]
2
pass
1027½
pass
1027¼
Skewen [SKE]
2
pass
1029½
pass
1029¼
Neath [NTH]
2
1033
1035
1032½
1035
1031¾
1034½
Briton Ferry West Jn
pass
1037½
pass
1037¼
Port Talbot Parkway [PTA]
2
1041
1042
1041
1042½
1040¾
1042
Port Talbot East
pass
1043½
No report
Margam Middle Jn
pass
1044½
pass
1043½
-1
Margam East Jn
pass
1045½
pass
1044¾
Margam Moors Jn.
pass
1046½
pass
1046¼
UM
Pyle [PYL]
2
pass
1048
pass
1047¾
Stormy
pass
1049½
pass
1049½
At platform
Bridgend [BGN]
2
1054
1055
1053½
1055
1053¼
1055½
UM
UM
Tremains
pass
1056
pass
1057½
+1
Pencoed Up Passenger Loop
pass
1058½
No report
Pencoed [PCD]
2
pass
1059
pass
1059¾
Llanharan [LLR]
1
pass
1101
pass
1101¾
Llantrisant [LTI]
pass
1102½
No report
Pontyclun [PYC]
1
2
pass
1103
pass
1103¾
Miskin
pass
1105
pass
1105¾
St Fagans L C
pass
1109½
pass
1109¾
Leckwith North Jn
pass
1112
pass
1112
UM
C
Cardiff West
pass
1114½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
1115
1118
1115½
1118
1115¼
1118½
C
B
Cardiff East
pass
1118½
pass
1119¾
+1
Long Dyke Jn
pass
1120
pass
1120¾
B
UM
Moorland Road Junction
pass
1120½
pass
1121¾
+1
Pengam Jn
pass
1121
pass
1122
+1
Rumney River Bridge Jn
pass
1121
pass
1122¼
+1
Marshfield
pass
1124
pass
1125
+1
Ebbw Jn
pass
1126½
pass
1127¾
+1
UM
UM
Gaer Jn
pass
1127
pass
1128¼
+1
UM
Newport (South Wales) [NWP]
4
1129
1131
1129
1131
1130
1132
+1
UM
UM
Maindee West Jn
pass
1132
pass
1133¾
+1
Maindee East Jn
pass
1132½
pass
1134¼
+1
ML
East Usk Jn.
pass
1133½
pass
1135¼
+1
Llanwern West Jn
2½
pass
1134½
pass
1136¼
+1
Magor
pass
1139½
pass
1139¼
Severn Tunnel Junction [STJ]
4
pass
1142
pass
1142
UM
UT
Severn Tunnel West
pass
1143
pass
1142¾
Severn Tunnel East
pass
1146½
pass
1146½
Pilning [PIL]
1
1
pass
1147½
pass
1147½
Patchway [PWY]
1
pass
1151
pass
1150½
Bristol Parkway [BPW]
3
1154
1155
1153½
1155½
1152½
1154¼
-1
UT
UB
Westerleigh Jn
pass
1159½
pass
1158½
Chipping Sodbury
pass
1201
pass
1200
Badminton
pass
1203
pass
1202½
Hullavington
pass
1206
pass
1205
Little Somerford
pass
1208½
pass
1208
Wootton Bassett Jn
1
pass
1212½
pass
1211½
UB
UM
Swindon [SWI]
3
1218
1220
1218
1220
1218
1221¼
+1
UR
UM
Highworth Jn
pass
1221
pass
1223¼
+2
Swindon Stratton Green
pass
1221½
pass
1223¾
+2
Swindon South Marston Jn
pass
1222
pass
1224
+2
Bourton
pass
1223
pass
1225½
+2
Uffington (Oxfordshire)
pass
1226½
pass
1228½
+2
Challow
pass
1228
pass
1229½
+1
Wantage Road
1
pass
1229½
pass
1232
+2
Steventon
pass
1232
pass
1233¼
+1
Milton Junction
pass
1232½
pass
1234¼
+1
Foxhall Jn [XJF]
pass
1233½
pass
1235
+1
Didcot West End
pass
1234
No report
Didcot Parkway [DID]
2
pass
1234
pass
1236
+2
Didcot East Jn
pass
1234
pass
1236
+2
Moreton Cutting
pass
1235
pass
1236¼
+1
Cholsey [CHO]
2
pass
1236
pass
1237¾
+1
Goring & Streatley [GOR]
1
2
pass
1238
pass
1239¾
+1
ML
Pangbourne [PAN]
pass
1240
pass
1241½
+1
Tilehurst [TLH]
2
pass
1242
pass
1242½
Tilehurst East Jn.
pass
1242½
pass
1242¾
Reading High Level Jn
pass
1243½
pass
1244¼
ML
Reading Main Line West
pass
1244
pass
1244¾
Reading [RDG]
11
1244
1247
1245
1247
1245¾
1247
UM
UM
Reading Main Line East
pass
1247½
pass
1247¾
Kennet Bridge Jn
pass
1248
pass
1248½
Twyford West
pass
1250½
pass
1250¾
Twyford [TWY]
2
pass
1251
pass
1251½
ML
Ruscombe
pass
1251½
pass
1251¾
Maidenhead [MAI]
2
pass
1254½
pass
1255
Maidenhead East
pass
1255
pass
1255
Taplow [TAP]
2
pass
1255½
pass
1255¾
Burnham [BNM]
pass
1256
pass
1256
Slough West
pass
1257
pass
1257
Slough [SLO]
3
pass
1257½
pass
1257¾
Dolphin Jn
pass
1258
pass
1258
Langley [LNY]
2
pass
1258½
pass
1258¾
Iver [IVR]
2
pass
1259½
pass
1259½
West Drayton Jcn
pass
1300
pass
1259¾
West Drayton [WDT]
2
pass
1300
pass
1300¼
West Drayton East
pass
1300
pass
1300¼
Stockley Junction
pass
1300½
pass
1300½
ML
ML
Heathrow Airport Jn
pass
1301
pass
1300¾
Hayes & Harlington [HAY]
2
pass
1301
pass
1301¼
Southall West Jn
pass
1301½
pass
1301½
Southall [STL]
2
pass
1302
pass
1301½
ML
Southall East Jn
pass
1302
pass
1301¾
Hanwell [HAN]
1
pass
1302½
pass
1302¾
West Ealing Junction
pass
1303
pass
1303
West Ealing [WEA]
pass
1303
pass
1303¼
Ealing Broadway [EAL]
2
pass
1303
pass
1304
Acton West
1
pass
1303½
pass
1304
ML
ML
Acton Main Line [AML]
2
pass
1304½
pass
1304¾
Friars Jn
pass
1305
No report
Old Oak Common West
pass
1305½
pass
1305¼
Old Oak Common East
pass
1306
pass
1305¾
Ladbroke Grove
pass
1307
pass
1306¾
UM
3
Portobello Jn (London)
pass
1307½
pass
1307¼
Royal Oak Junction
pass
1308½
pass
1308¾
London Paddington [PAD]
forms 1B17 to Carmarthen
8
1310
1310
1310½
3
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