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1L16 0921 Carmarthen to London Paddington
Departing on 17th December 2025

operated by
Great Western Railway
5 coaches
Carmarthen - Swansea
800036
10 coaches
Swansea - London Paddington
800036
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
0922
-1
UU
Ferryside [FYS]
pass
0931½
No report
Bertwyn Level Crossing
pass
0934
No report
Kidwelly [KWL]
1
pass
0935½
No report
Kidwelly Junction
pass
0936
No report
Pembrey & Burry Port [PBY]
0941
0942
0940½
0942
No report
Llanelli [LLE]
2
0948
0950
0948
0950
0947
0949½
Llandeilo Jn
pass
0952½
pass
0951¾
Duffryn West
pass
0953
pass
0952
Gowerton [GWN]
2
pass
0956½
pass
0954¾
-1
Cockett West
1
pass
0958
pass
0956½
-1
Swansea Loop West
½
pass
1002
pass
1000
-1
UM
USL
Swansea Loop East
pass
1004½
pass
1001¾
-2
USL
USM
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here, gains coaches here
3
1007
1022
1007
1022
1004¼
1021¼
USM
USM
Swansea Loop East
pass
1023½
pass
1023
Landore Junction
pass
1024½
pass
1024¼
USM
UM
Llansamlet [LAS]
2
pass
1027½
pass
1027
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
1046
UM
Pyle [PYL]
2
pass
1048
pass
1047½
Stormy
pass
1049½
pass
1049¼
At platform
Bridgend [BGN]
2
1054
1055
1053½
1055
1053
1054¾
UM
UM
Tremains
pass
1056
pass
1056¾
Pencoed Up Passenger Loop
pass
1058½
No report
Pencoed [PCD]
2
pass
1059
pass
1058¾
Llanharan [LLR]
1
pass
1101
pass
1100¾
Llantrisant [LTI]
pass
1102½
No report
Pontyclun [PYC]
1
2
pass
1103
pass
1103
Miskin
pass
1105
pass
1104¾
St Fagans L C
pass
1109½
pass
1108¾
Leckwith North Jn
pass
1112
pass
1111¼
UM
C
Cardiff West
pass
1114½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
1115
1118
1115½
1118
1114¼
1118¼
C
B
Cardiff East
pass
1118½
pass
1119½
Long Dyke Jn
pass
1120
pass
1120½
B
UM
Moorland Road Junction
pass
1120½
pass
1121½
+1
Pengam Jn
pass
1121
pass
1121¾
+1
Rumney River Bridge Jn
pass
1121
pass
1122¼
+1
Marshfield
pass
1124
pass
1124¾
Ebbw Jn
pass
1126½
pass
1127½
+1
UM
UM
Gaer Jn
pass
1127
pass
1128
+1
UM
Newport (South Wales) [NWP]
3
1129
1131
1129
1131
1130¼
1131¾
UM
UM
Maindee West Jn
pass
1132
pass
1133¼
+1
Maindee East Jn
pass
1132½
pass
1133¾
+1
ML
East Usk Jn.
pass
1133½
pass
1134¾
+1
Llanwern West Jn
2½
pass
1134½
pass
1135¾
+1
Magor
pass
1139½
pass
1138½
Severn Tunnel Junction [STJ]
4
pass
1142
pass
1141¼
UM
UT
Severn Tunnel West
pass
1143
pass
1142
Severn Tunnel East
pass
1146½
pass
1145¾
Pilning [PIL]
1
1
pass
1147½
pass
1146½
Patchway [PWY]
1
pass
1151
pass
1149¾
-1
Bristol Parkway [BPW]
4
1154
1155
1153½
1155½
1152¼
1154½
UT
UB
Westerleigh Jn
pass
1159½
pass
1159¼
Chipping Sodbury
pass
1201
pass
1200¾
Badminton
pass
1203
pass
1203¼
Hullavington
pass
1206
pass
1205¾
Little Somerford
pass
1208½
pass
1208¾
Wootton Bassett Jn
1
pass
1212½
pass
1211¾
UB
UM
Swindon [SWI]
3
1218
1220
1218
1220
1218
1219¾
UR
UM
Highworth Jn
pass
1221
pass
1221¾
Swindon Stratton Green
pass
1221½
pass
1222¼
Swindon South Marston Jn
pass
1222
pass
1222½
Bourton
pass
1223
pass
1223¾
Uffington (Oxfordshire)
pass
1226½
pass
1226¾
Challow
pass
1228
pass
1227¾
Wantage Road
1
pass
1229½
pass
1230¼
Steventon
pass
1232
pass
1231½
Milton Junction
pass
1232½
pass
1232¼
Foxhall Jn [XJF]
pass
1233½
pass
1233¾
Didcot West End
pass
1234
No report
Didcot Parkway [DID]
2
pass
1234
pass
1235¼
+1
Didcot East Jn
pass
1234
pass
1236¼
+2
Moreton Cutting
pass
1235
pass
1236¾
+2
Cholsey [CHO]
2
pass
1236
pass
1238½
+2
Goring & Streatley [GOR]
1
2
pass
1238
pass
1240½
+2
ML
Pangbourne [PAN]
pass
1240
pass
1242¼
+2
Tilehurst [TLH]
2
pass
1242
pass
1243¼
+1
Tilehurst East Jn.
pass
1242½
pass
1243½
+1
Reading High Level Jn
pass
1243½
pass
1245
+1
ML
Reading Main Line West
pass
1244
pass
1246¼
+2
Reading [RDG]
11
1244
1247
1245
1247
1247¼
1249¼
+2
UM
UM
Reading Main Line East
pass
1247½
pass
1250
+2
Kennet Bridge Jn
pass
1248
pass
1250¾
+2
Twyford West
pass
1250½
pass
1252¾
+2
Twyford [TWY]
2
pass
1251
pass
1253½
+2
ML
Ruscombe
pass
1251½
pass
1253¾
+2
Maidenhead [MAI]
2
pass
1254½
pass
1256¾
+2
Maidenhead East
pass
1255
pass
1256¾
+2
Taplow [TAP]
2
pass
1255½
pass
1257½
+2
Burnham [BNM]
pass
1256
pass
1257¾
+1
Slough West
pass
1257
pass
1259
+2
Slough [SLO]
3
pass
1257½
pass
1259¾
+2
Dolphin Jn
pass
1258
pass
1300
+1
Langley [LNY]
2
pass
1258½
pass
1300½
+2
Iver [IVR]
2
pass
1259½
pass
1301¼
+2
West Drayton Jcn
pass
1300
pass
1301¾
+1
West Drayton [WDT]
2
pass
1300
pass
1302
+2
West Drayton East
pass
1300
pass
1302
+2
Stockley Junction
pass
1300½
pass
1302¼
+1
ML
ML
Heathrow Airport Jn
pass
1301
pass
1302¾
+1
Hayes & Harlington [HAY]
2
pass
1301
pass
1303
+2
Southall West Jn
pass
1301½
pass
1303½
+1
Southall [STL]
2
pass
1302
pass
1303¼
+1
ML
Southall East Jn
pass
1302
pass
1303½
+1
Hanwell [HAN]
1
pass
1302½
pass
1304½
+2
West Ealing Junction
pass
1303
pass
1305
+2
West Ealing [WEA]
pass
1303
pass
1305¼
+2
Ealing Broadway [EAL]
2
pass
1303
pass
1305¾
+2
Acton West
1
pass
1303½
pass
1305¾
+2
ML
ML
Acton Main Line [AML]
2
pass
1304½
pass
1306½
+2
Friars Jn
pass
1305
No report
Old Oak Common West
pass
1305½
pass
1307
+1
Old Oak Common East
pass
1306
pass
1307¼
+1
Ladbroke Grove
pass
1307
pass
1308¼
+1
UM
3
Portobello Jn (London)
pass
1307½
pass
1309
+1
3
4
Royal Oak Junction
pass
1308½
pass
1310
+1
London Paddington [PAD]
forms 1B17 to Carmarthen
8
1310
1310
1312¼
+2
4
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