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1L20 1127 Carmarthen to London Paddington
Departing on 4th December 2025

operated by
Great Western Railway
5 coaches
Carmarthen - Swansea
800019
10 coaches
Swansea - London Paddington
800002
800033
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
1128
-1
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
1152
1154¾
Llandeilo Jn
pass
1157½
pass
1157¼
Duffryn West
pass
1158
pass
1157¾
Gowerton [GWN]
2
pass
1201½
pass
1200¼
Cockett West
1
pass
1203
pass
1202¼
Swansea Loop West
1½
pass
1207
pass
1206
-1
UM
USL
Swansea Loop East
pass
1210½
pass
1213¾
+3
USL
USM
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here, gains coaches here
3
1213
1222
1213
1222
1216
1243
+21
USM
USM
Swansea Loop East
pass
1223½
pass
1244¾
+21
Landore Junction
pass
1224½
pass
1246
+21
USM
UM
Llansamlet [LAS]
2
pass
1227½
pass
1248¾
+21
Skewen [SKE]
2
pass
1229½
pass
1250¾
+21
Neath [NTH]
2
1233
1234
1232½
1234
1253¼
1254¾
+20
Briton Ferry West Jn
pass
1236½
pass
1257½
+21
Port Talbot Parkway [PTA]
2
1240
1241
1240
1241½
1301
1302¼
+20
Port Talbot East
pass
1242½
No report
Margam Middle Jn
pass
1243½
pass
1303½
+20
Margam East Jn
pass
1244½
pass
1305
+20
Margam Moors Jn.
pass
1245½
pass
1306½
+21
UM
Pyle [PYL]
2
pass
1247
pass
1308
+20
Stormy
pass
1248½
pass
1309¾
+21
At platform
Bridgend [BGN]
2
1253
1254
1252½
1254
1313½
1315
+21
UM
UM
Tremains
pass
1255
pass
1317¼
+22
Pencoed Up Passenger Loop
pass
1257½
No report
Pencoed [PCD]
2
pass
1258
pass
1319¼
+21
Llanharan [LLR]
1
pass
1300
pass
1321¼
+21
Llantrisant [LTI]
pass
1301½
No report
Pontyclun [PYC]
1
2
pass
1302
pass
1323¼
+21
Miskin
pass
1304
pass
1325¼
+21
St Fagans L C
pass
1308½
pass
1329¼
+20
Leckwith North Jn
½
pass
1311
pass
1331¾
+20
UM
C
Cardiff West
pass
1313½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
1314
1318
1315
1318
1335
1338¼
+20
C
B
Cardiff East
pass
1318½
pass
1339¼
+20
Long Dyke Jn
pass
1320
pass
1340¼
+20
B
UM
Moorland Road Junction
pass
1320½
pass
1341¼
+20
Pengam Jn
pass
1321
pass
1341½
+20
Rumney River Bridge Jn
pass
1321
pass
1341¾
+20
Marshfield
pass
1324
pass
1344½
+20
Ebbw Jn
pass
1326½
pass
1347¼
+20
UM
UM
Gaer Jn
pass
1327½
pass
1347½
+20
UM
Newport (South Wales) [NWP]
4
1329
1331
1329
1331
1349¾
1351½
+20
UM
UM
Maindee West Jn
pass
1332
pass
1353¼
+21
Maindee East Jn
pass
1332½
pass
1353¾
+21
East Usk Jn.
pass
1333
pass
1354¾
+21
Llanwern West Jn
½
pass
1334
pass
1355¾
+21
Magor
pass
1338
pass
1358½
+20
Severn Tunnel Junction [STJ]
4
pass
1340
pass
1401
+21
UM
UT
Severn Tunnel West
pass
1341
pass
1402¼
+21
Severn Tunnel East
½
pass
1344½
pass
1405¾
+21
Pilning [PIL]
1
1
pass
1346
pass
1406¾
+20
Patchway [PWY]
1
pass
1349½
pass
1411
+21
Bristol Parkway [BPW]
3
1352
1355
1352
1356
1414¾
1417
+21
UT
UB
Westerleigh Jn
pass
1400
pass
1421
+21
Chipping Sodbury
pass
1401½
pass
1422½
+21
Badminton
pass
1403½
pass
1425
+21
Hullavington
pass
1406½
pass
1427½
+21
Little Somerford
pass
1409
pass
1430½
+21
Wootton Bassett Jn
1
pass
1413
pass
1433½
+20
UB
UM
Swindon [SWI]
1
1419
1420
1418½
1420½
pass
1438
+17
UM
UM
Highworth Jn
pass
1421½
pass
1438¼
+16
Swindon Stratton Green
pass
1422
pass
1438¾
+17
Swindon South Marston Jn
pass
1422½
pass
1439
+16
Bourton
pass
1423½
pass
1440¼
+16
Uffington (Oxfordshire)
pass
1427
pass
1443¼
+16
Challow
pass
1428½
pass
1444¼
+15
Wantage Road
1
pass
1430
pass
1446¾
+16
Steventon
pass
1432½
pass
1448
+15
Milton Junction
pass
1433
pass
1448¾
+15
Foxhall Jn [XJF]
pass
1434
pass
1449¾
+15
Didcot West End
pass
1434½
No report
Didcot Parkway [DID]
2
pass
1434½
pass
1450½
+16
Didcot East Jn
pass
1434½
pass
1450½
+16
Moreton Cutting
pass
1435½
pass
1450¾
+15
Cholsey [CHO]
2
pass
1436½
pass
1452¼
+15
Goring & Streatley [GOR]
1
2
pass
1438½
pass
1454¼
+15
ML
Pangbourne [PAN]
pass
1440½
pass
1456
+15
Tilehurst [TLH]
2
pass
1442½
pass
1457
+14
Tilehurst East Jn.
pass
1443
pass
1457¼
+14
Reading High Level Jn
½
pass
1444
pass
1458¾
+14
ML
Reading Main Line West
pass
1445
pass
1501½
+16
Reading [RDG]
10
1445
1448
1446
1448
pass
1502¼
+14
UM
UM
Reading Main Line East
pass
1448½
pass
1503
+14
Kennet Bridge Jn
pass
1449
pass
1503½
+14
Twyford West
pass
1451½
pass
1505½
+14
Twyford [TWY]
2
pass
1452
pass
1506¼
+14
ML
Ruscombe
pass
1452½
pass
1506¾
+14
Maidenhead [MAI]
2
pass
1455½
pass
1509¾
+14
Maidenhead East
pass
1456
pass
1509¾
+14
Taplow [TAP]
2
pass
1456½
pass
1510½
+14
Burnham [BNM]
pass
1457
pass
1510¾
+13
Slough West
pass
1458
pass
1512
+13
Slough [SLO]
3
pass
1458½
pass
1512¾
+14
Dolphin Jn
pass
1459
pass
1513
+13
Langley [LNY]
2
pass
1459½
pass
1513½
+14
Iver [IVR]
2
pass
1500½
pass
1514¼
+14
West Drayton Jcn
pass
1501
pass
1514¾
+13
West Drayton [WDT]
2
pass
1501
pass
1515
+14
West Drayton East
pass
1501
pass
1515
+14
Stockley Junction
pass
1501½
pass
1515¼
+13
ML
ML
Heathrow Airport Jn
pass
1502
pass
1515¾
+13
Hayes & Harlington [HAY]
2
pass
1502
pass
1515¾
+13
Southall West Jn
pass
1502½
pass
1516½
+13
Southall [STL]
2
pass
1503
pass
1516¼
+13
ML
Southall East Jn
pass
1503
pass
1516½
+13
Hanwell [HAN]
1
pass
1503½
pass
1517¾
+14
West Ealing Junction
pass
1504
pass
1518
+14
West Ealing [WEA]
pass
1504
pass
1518¼
+14
Ealing Broadway [EAL]
2
pass
1504
pass
1519
+14
Acton West
1
pass
1504½
pass
1519
+14
ML
ML
Acton Main Line [AML]
2
pass
1505½
pass
1519¾
+14
Friars Jn
pass
1506
No report
Old Oak Common West
pass
1506½
pass
1520¾
+14
Old Oak Common East
pass
1507
pass
1521¼
+14
Ladbroke Grove
pass
1508
pass
1522½
+14
UM
3
Portobello Jn (London)
1½
pass
1508½
pass
1523¼
+14
Royal Oak Junction
pass
1511
pass
1524¾
+13
3
4
London Paddington [PAD]
9
1512
1512
1527¼
+15
4
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