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1L20 1127 Carmarthen to London Paddington
Departing on 9th December 2025

operated by
Great Western Railway
5 coaches
Carmarthen - Swansea
800016
10 coaches
Swansea - London Paddington
800016
800026
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
1127
1127
1127
U2
Carmarthen Jn [XCI]
pass
1129
pass
1129
UU
Ferryside [FYS]
pass
1137½
No report
Kidwelly [KWL]
pass
1141
No report
Kidwelly Junction
pass
1141½
No report
Pembrey & Burry Port [PBY]
1146
1147
1146
1147½
No report
Llanelli [LLE]
2
1154
1155
1153½
1155
1152¾
1154¾
Llandeilo Jn
pass
1157½
pass
1157¼
Duffryn West
pass
1158
pass
1157¾
Gowerton [GWN]
2
pass
1201½
pass
1200½
Cockett West
1
pass
1203
pass
1202¼
Swansea Loop West
1½
pass
1207
pass
1205¾
-1
UM
USL
Swansea Loop East
pass
1210½
pass
1209¼
-1
USL
USM
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here, gains coaches here
3
1213
1222
1213
1222
1212
1226
+4
USM
USM
Swansea Loop East
pass
1223½
pass
1227¾
+4
Landore Junction
pass
1224½
pass
1229
+4
USM
UM
Llansamlet [LAS]
2
pass
1227½
pass
1232¼
+4
Skewen [SKE]
2
pass
1229½
pass
1234¼
+4
Neath [NTH]
2
1233
1234
1232½
1234
1236¾
1238½
+4
Briton Ferry West Jn
pass
1236½
pass
1241¼
+4
Port Talbot Parkway [PTA]
2
1240
1241
1240
1241½
1245¼
1246¼
+4
Port Talbot East
pass
1242½
No report
Margam Middle Jn
pass
1243½
pass
1247¾
+4
Margam East Jn
pass
1244½
pass
1249¼
+4
Margam Moors Jn.
pass
1245½
pass
1250¾
+5
UM
Pyle [PYL]
2
pass
1247
pass
1252¼
+5
Stormy
pass
1248½
pass
1254½
+6
At platform
Bridgend [BGN]
2
1253
1254
1252½
1254
1301
1303¼
+9
UM
UM
Tremains
pass
1255
pass
1305½
+10
Pencoed Up Passenger Loop
pass
1257½
No report
Pencoed [PCD]
2
pass
1258
pass
1307¾
+10
Llanharan [LLR]
1
pass
1300
pass
1309¾
+9
Llantrisant [LTI]
pass
1301½
No report
Pontyclun [PYC]
1
2
pass
1302
pass
1314
+12
Miskin
pass
1304
pass
1316¼
+12
St Fagans L C
pass
1308½
pass
1320¼
+11
Leckwith North Jn
½
pass
1311
pass
1322¾
+11
UM
C
Cardiff West
pass
1313½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
1314
1318
1315
1318
1325¾
1328¼
+10
C
B
Cardiff East
pass
1318½
pass
1329¼
+10
Long Dyke Jn
pass
1320
pass
1330¼
+10
B
UM
Moorland Road Junction
pass
1320½
pass
1331¼
+10
Pengam Jn
pass
1321
pass
1331½
+10
Rumney River Bridge Jn
pass
1321
pass
1331¾
+10
Marshfield
pass
1324
pass
1334½
+10
Ebbw Jn
pass
1326½
pass
1337½
+11
UM
UM
Gaer Jn
pass
1327½
pass
1338¼
+10
UM
Newport (South Wales) [NWP]
3
1329
1331
1329
1331
1340½
1342
+11
UM
UM
Maindee West Jn
pass
1332
pass
1343½
+11
Maindee East Jn
pass
1332½
pass
1344
+11
East Usk Jn.
pass
1333
pass
1345
+12
Llanwern West Jn
½
pass
1334
pass
1346
+12
Magor
pass
1338
pass
1349
+10
Severn Tunnel Junction [STJ]
4
pass
1340
pass
1351¾
+11
UM
UT
Severn Tunnel West
pass
1341
pass
1352½
+11
Severn Tunnel East
½
pass
1344½
pass
1356
+11
Pilning [PIL]
1
1
pass
1346
pass
1357¼
+11
Patchway [PWY]
1
pass
1349½
pass
1400½
+11
Bristol Parkway [BPW]
4
1352
1355
1352
1356
1403¾
1405¾
+9
UT
UB
Westerleigh Jn
pass
1400
pass
1410¾
+10
Chipping Sodbury
pass
1401½
pass
1412½
+11
Badminton
pass
1403½
pass
1414¾
+11
Hullavington
pass
1406½
pass
1417¼
+10
Little Somerford
pass
1409
pass
1420¼
+11
Wootton Bassett Jn
1
pass
1413
pass
1423¾
+10
UB
UM
Swindon [SWI]
1
1419
1420
1418½
1420½
1430
1432¼
+11
UR
UM
Highworth Jn
pass
1421½
pass
1434½
+13
Swindon Stratton Green
pass
1422
pass
1435
+13
Swindon South Marston Jn
pass
1422½
pass
1435½
+13
Bourton
pass
1423½
pass
1437
+13
Uffington (Oxfordshire)
pass
1427
pass
1440
+13
Challow
pass
1428½
pass
1441
+12
Wantage Road
1
pass
1430
pass
1443½
+13
Steventon
pass
1432½
pass
1444¾
+12
Milton Junction
pass
1433
pass
1445½
+12
Foxhall Jn [XJF]
pass
1434
pass
1446½
+12
Didcot West End
pass
1434½
No report
Didcot Parkway [DID]
2
pass
1434½
pass
1447¼
+12
Didcot East Jn
pass
1434½
pass
1447½
+13
Moreton Cutting
pass
1435½
pass
1447¾
+12
Cholsey [CHO]
2
pass
1436½
pass
1449¼
+12
Goring & Streatley [GOR]
1
2
pass
1438½
pass
1451¼
+12
ML
Pangbourne [PAN]
pass
1440½
pass
1453
+12
Tilehurst [TLH]
2
pass
1442½
pass
1454¼
+11
Tilehurst East Jn.
pass
1443
pass
1454¼
+11
Reading High Level Jn
½
pass
1444
pass
1455¾
+11
ML
Reading Main Line West
pass
1445
pass
1456½
+11
Reading [RDG]
10
1445
1448
1446
1448
1457¼
1458¾
+10
UM
UM
Reading Main Line East
pass
1448½
pass
1459½
+10
Kennet Bridge Jn
pass
1449
pass
1500¼
+11
Twyford West
pass
1451½
pass
1502¼
+10
Twyford [TWY]
2
pass
1452
pass
1503
+11
ML
Ruscombe
pass
1452½
pass
1503½
+10
Maidenhead [MAI]
2
pass
1455½
pass
1506½
+11
Maidenhead East
pass
1456
pass
1506½
+10
Taplow [TAP]
2
pass
1456½
pass
1507¼
+10
Burnham [BNM]
pass
1457
pass
1507½
+10
Slough West
pass
1458
pass
1508¾
+10
Slough [SLO]
3
pass
1458½
pass
1509½
+11
Dolphin Jn
pass
1459
pass
1509¾
+10
Langley [LNY]
2
pass
1459½
pass
1510¼
+10
Iver [IVR]
2
pass
1500½
pass
1511
+10
West Drayton Jcn
pass
1501
pass
1511½
+10
West Drayton [WDT]
2
pass
1501
pass
1512
+11
West Drayton East
pass
1501
pass
1512¼
+11
Stockley Junction
pass
1501½
pass
1512¾
+11
ML
ML
Heathrow Airport Jn
pass
1502
pass
1514
+12
Hayes & Harlington [HAY]
2
pass
1502
pass
1514¼
+12
Southall West Jn
pass
1502½
pass
1515
+12
Southall [STL]
2
pass
1503
pass
1515
+12
ML
Southall East Jn
pass
1503
pass
1515¼
+12
Hanwell [HAN]
1
pass
1503½
pass
1516¼
+12
West Ealing Junction
pass
1504
pass
1516¾
+12
West Ealing [WEA]
pass
1504
pass
1517
+13
Ealing Broadway [EAL]
2
pass
1504
pass
1517½
+13
Acton West
1
pass
1504½
pass
1517¾
+13
ML
ML
Acton Main Line [AML]
2
pass
1505½
pass
1518½
+13
Friars Jn
pass
1506
No report
Old Oak Common West
pass
1506½
pass
1519
+12
Old Oak Common East
pass
1507
pass
1519¾
+12
Ladbroke Grove
pass
1508
pass
1520¾
+12
UM
3
Portobello Jn (London)
1½
pass
1508½
pass
1521½
+13
Royal Oak Junction
pass
1511
pass
1522½
+11
London Paddington [PAD]
9
1512
1512
1524½
+12
3
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