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1B17 1348 London Paddington to Carmarthen
Departing on 18th December 2025

operated by
Great Western Railway
5 coaches
London Paddington - Swansea
800010
5 coaches
Swansea - Carmarthen
800010
GBTT
WTT
RTTRealtime
Route
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
London Paddington [PAD]
Pathed as Class 80x on electric at 125mph
forms from 1L16 from Carmarthen
8
1348
1348
1348¾
3
Royal Oak Junction
pass
1349
pass
1350
+1
3
2
Portobello Jn (London)
pass
1350½
pass
1351
Ladbroke Grove
pass
1351
pass
1351¾
2
DM
Old Oak Common East
pass
1351½
pass
1352½
Old Oak Common West
pass
1352
pass
1353
+1
Friars Jn
pass
1352½
pass
1353¼
Acton Main Line [AML]
pass
1353
pass
1353¾
+1
Acton West
pass
1353½
pass
1354¼
ML
ML
Ealing Broadway [EAL]
1
pass
1354
pass
1354½
West Ealing [WEA]
pass
1354½
pass
1355
West Ealing Junction
pass
1354½
pass
1355
Hanwell [HAN]
pass
1354½
pass
1355¼
Southall East Jn
pass
1355½
pass
1356¼
Southall [STL]
1
pass
1355½
pass
1356¾
+1
Southall West Jn
pass
1356
pass
1356¾
Hayes & Harlington [HAY]
1
pass
1356½
pass
1357½
+1
Heathrow Airport Jn
pass
1356½
pass
1357¼
ML
Stockley Junction
pass
1357
pass
1357¾
West Drayton East
pass
1357½
pass
1358
West Drayton [WDT]
1
pass
1357½
pass
1358½
+1
West Drayton Jcn
pass
1357½
pass
1358¾
+1
Iver [IVR]
1
pass
1358
pass
1359¼
+1
Langley [LNY]
1
pass
1359
pass
1400¼
+1
Dolphin Jn
pass
1359½
pass
1400½
+1
Slough [SLO]
2
pass
1400
pass
1401
+1
ML
Slough West
pass
1400½
pass
1401¼
+1
Burnham [BNM]
pass
1401½
pass
1402
Taplow [TAP]
1
pass
1402
pass
1402¾
Maidenhead East
pass
1402½
pass
1403¾
+1
Maidenhead [MAI]
1
pass
1403
pass
1404
+1
Ruscombe
pass
1406
pass
1406¼
Twyford [TWY]
1
1
pass
1406½
pass
1407
ML
Twyford West
pass
1407
pass
1407¼
Kennet Bridge Jn
pass
1409½
pass
1409¾
Reading Main Line East
pass
1410
pass
1410½
Reading [RDG]
9
1411
1413
1411
1413
1411½
1413¼
DM
DM
Reading Main Line West
pass
1413½
pass
1413¾
Reading High Level Jn
pass
1414
pass
1414¾
ML
Tilehurst East Jn.
pass
1415
pass
1415¾
Tilehurst [TLH]
1
pass
1415
pass
1415¾
Pangbourne [PAN]
pass
1417
pass
1417¼
Goring & Streatley [GOR]
1
1
pass
1419
pass
1419
ML
Cholsey [CHO]
1
pass
1421
pass
1420¾
Moreton Cutting
pass
1423
pass
1422
Didcot East Jn
pass
1424
pass
1422½
-1
Didcot Parkway [DID]
1
pass
1424
pass
1423
Didcot West End
pass
1424
No report
Foxhall Jn [XJF]
pass
1424½
pass
1423¼
Milton Junction
pass
1425
pass
1423¾
-1
Steventon
pass
1426
pass
1424½
-1
Wantage Road
pass
1428
pass
1427
Challow
pass
1430
pass
1429
Uffington (Oxfordshire)
1
pass
1431
pass
1430¼
Bourton
pass
1434½
pass
1433
-1
Swindon South Marston Jn
pass
1436
pass
1434¼
-1
Swindon Stratton Green
pass
1436½
pass
1435
-1
Highworth Jn
pass
1437
pass
1435¼
-1
Swindon East Loop
pass
1437
pass
1436½
Swindon [SWI]
4
1437
1440
1438
1440
1437½
1439¾
DM
DM
Wootton Bassett Jn
pass
1444½
pass
1444½
DM
DB
Little Somerford
pass
1448½
pass
1448½
Hullavington
1
pass
1451
pass
1451
Badminton
pass
1454½
pass
1453¼
Chipping Sodbury
pass
1457
pass
1456
Westerleigh Jn
pass
1458½
pass
1459¼
Bristol Parkway [BPW]
2
1502
1503
1501½
1503½
1505
1508
+4
DB
DT
Patchway [PWY]
2
pass
1505
pass
1509¾
+4
Pilning [PIL]
2
pass
1507½
pass
1513
+5
Severn Tunnel East
pass
1508½
pass
1514¼
+5
Severn Tunnel West
pass
1512
pass
1517½
+5
Severn Tunnel Junction [STJ]
3
pass
1513
pass
1519
+6
DT
DM
Magor
pass
1514½
pass
1520½
+6
Llanwern West Jn
½
pass
1518
pass
1524¼
+6
East Usk Jn.
pass
1519
pass
1524¾
+5
Maindee East Jn
pass
1520
pass
1525¾
+5
ML
Maindee West Jn
pass
1520½
pass
1526¾
+6
DM
DR
Newport (South Wales) [NWP]
1
1522
1523
1521½
1523½
1528
1530¾
+7
DR
DR
Gaer Jn
pass
1525
pass
1532½
+7
DR
DM
Ebbw Jn
pass
1526
pass
1533½
+7
DM
DM
Marshfield
pass
1528½
pass
1536½
+8
Rumney River Bridge Jn
pass
1531½
pass
1539
+7
Pengam Jn
pass
1531½
pass
1539½
+7
Moorland Road Junction
1
pass
1532
pass
1540¼
+8
DM
DR
Long Dyke Jn
pass
1533½
pass
1541½
+8
E
Cardiff East
pass
1535
pass
1542¾
+7
DR
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1536
1538
1536
1538
1545½
1549¾
+11
E
D
Cardiff West
pass
1539
No report
Leckwith North Jn
pass
1541
pass
1552¾
+11
D
DM
St Fagans L C
pass
1543
pass
1555
+11
Miskin
pass
1547
pass
1559
+11
Pontyclun [PYC]
1
pass
1549
pass
1601
+12
Llantrisant [LTI]
pass
1549½
No report
Llanharan [LLR]
2
pass
1551
pass
1603
+12
Pencoed [PCD]
1
pass
1553
pass
1605¼
+12
Tremains
pass
1555½
pass
1607¼
+11
Bridgend [BGN]
1
1557
1558
1556½
1558
1609
1610¾
+12
DM
DM
Stormy
pass
1602½
pass
1615½
+13
Pyle [PYL]
1
pass
1603½
pass
1616¾
+13
Margam Moors Jn.
pass
1605
pass
1617¾
+12
DM
Margam East Jn
pass
1606
pass
1619¼
+13
Margam Middle Jn
pass
1606½
pass
1619½
+12
Port Talbot East
pass
1607½
No report
Port Talbot Parkway [PTA]
1
1609
1610
1608½
1610
1621¾
1623¼
+13
Baglan [BAJ]
1
pass
1612
pass
1626
+13
Briton Ferry East
pass
1613
pass
1626¼
+13
Briton Ferry [BNF]
1
pass
1614
pass
1627½
+13
Court Sart Jn
pass
1614
pass
1627¼
+13
Neath [NTH]
1
1
1615
1616
1616
1617½
1629¼
1630¾
+13
Skewen [SKE]
1
pass
1620½
pass
1633¾
+13
Llansamlet [LAS]
1
pass
1623
pass
1635¾
+13
Landore Junction
pass
1626
pass
1638½
+12
DM
DSM
Swansea Loop East
pass
1627
pass
1640
+13
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here
3
1629
1637
1628½
1637
1642
1648¼
+11
DSM
USM
Swansea Loop East
pass
1638½
pass
1650
+11
USM
DSL
Swansea Loop West
pass
1640½
pass
1652
+11
DSL
DM
Cockett West
pass
1644
pass
1656
+11
Gowerton [GWN]
1
pass
1646½
pass
1657½
+11
Duffryn West
pass
1649½
pass
1700¼
+10
Llandeilo Jn
pass
1650
pass
1700½
+10
Llanelli [LLE]
1
1653
1654
1652½
1654
1702¾
1704
+10
DD
Pembrey & Burry Port [PBY]
1700
1701
1659½
1701
1714
1716
+15
Kidwelly Junction
pass
1706
No report
Kidwelly [KWL]
2
pass
1706½
pass
1722
+15
Bertwyn Level Crossing
pass
1708
No report
Ferryside [FYS]
1
pass
1710½
pass
1726
+15
Carmarthen Jn [XCI]
pass
1719½
pass
1733
+13
DD
Carmarthen [CMN]
2
1721
1721
1734
+13
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