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1B17 1348 London Paddington to Carmarthen
Departing on 9th January 2026

operated by
Great Western Railway
5 coaches
London Paddington - Swansea
800029
5 coaches
Swansea - Carmarthen
800029
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
1349½
+1
3
Royal Oak Junction
pass
1349
pass
1350¾
+1
3
2
Portobello Jn (London)
pass
1350½
pass
1352
+1
Ladbroke Grove
pass
1351
pass
1354
+3
2
DM
Old Oak Common East
pass
1351½
pass
1355¼
+3
Old Oak Common West
pass
1352
pass
1355¾
+3
Friars Jn
pass
1352½
pass
1355¾
+3
Acton Main Line [AML]
pass
1353
pass
1356½
+3
Acton West
pass
1353½
pass
1357
+3
ML
ML
Ealing Broadway [EAL]
1
pass
1354
pass
1357¼
+3
West Ealing [WEA]
pass
1354½
pass
1357¾
+3
West Ealing Junction
pass
1354½
pass
1357¾
+3
Hanwell [HAN]
pass
1354½
pass
1358¼
+3
Southall East Jn
pass
1355½
pass
1359¼
+4
Southall [STL]
1
pass
1355½
pass
1400
+4
Southall West Jn
pass
1356
pass
1400
+4
Hayes & Harlington [HAY]
1
pass
1356½
pass
1401¼
+4
Heathrow Airport Jn
pass
1356½
pass
1401
+4
ML
Stockley Junction
pass
1357
pass
1401½
+4
West Drayton East
pass
1357½
pass
1402
+4
West Drayton [WDT]
1
pass
1357½
pass
1402½
+5
West Drayton Jcn
pass
1357½
pass
1402½
+5
Iver [IVR]
1
pass
1358
pass
1403
+5
Langley [LNY]
1
pass
1359
pass
1404¼
+5
Dolphin Jn
pass
1359½
pass
1404¾
+5
Slough [SLO]
2
pass
1400
pass
1405½
+5
ML
Slough West
pass
1400½
pass
1406
+5
Burnham [BNM]
pass
1401½
pass
1407
+5
Taplow [TAP]
1
pass
1402
pass
1408
+5
Maidenhead East
pass
1402½
pass
1408¾
+6
Maidenhead [MAI]
1
pass
1403
pass
1409¼
+6
Ruscombe
pass
1406
pass
1411½
+5
Twyford [TWY]
1
1
pass
1406½
pass
1412¼
+5
ML
Twyford West
pass
1407
pass
1412½
+5
Kennet Bridge Jn
pass
1409½
pass
1414¾
+5
Reading Main Line East
pass
1410
pass
1415¼
+5
Reading [RDG]
9
1411
1413
1411
1413
1416¼
1418
+5
DM
DM
Reading Main Line West
pass
1413½
pass
1418½
+5
Reading High Level Jn
pass
1414
pass
1419¾
+5
ML
Tilehurst East Jn.
pass
1415
pass
1421
+5
Tilehurst [TLH]
1
pass
1415
pass
1421
+5
Pangbourne [PAN]
pass
1417
pass
1422¾
+5
Goring & Streatley [GOR]
1
1
pass
1419
pass
1424½
+5
ML
Cholsey [CHO]
1
pass
1421
pass
1426¼
+5
Moreton Cutting
pass
1423
pass
1427½
+4
Didcot East Jn
pass
1424
pass
1428
+4
Didcot Parkway [DID]
1
pass
1424
pass
1428¾
+4
Didcot West End
pass
1424
No report
Foxhall Jn [XJF]
pass
1424½
pass
1429
+4
Milton Junction
pass
1425
pass
1429¼
+4
Steventon
pass
1426
pass
1430
+4
Wantage Road
pass
1428
pass
1433¾
+5
Challow
pass
1430
pass
1436¾
+6
Uffington (Oxfordshire)
1
pass
1431
pass
1438
+7
Bourton
pass
1434½
pass
1440¾
+6
Swindon South Marston Jn
pass
1436
pass
1442
+6
Swindon Stratton Green
pass
1436½
pass
1442¾
+6
Highworth Jn
pass
1437
pass
1442¾
+6
Swindon East Loop
pass
1437
pass
1444
+6
Swindon [SWI]
4
1437
1440
1438
1440
1444¾
1445¾
+5
DM
DM
Rushey Platt
pass
1441½
pass
1447¼
+6
Wootton Bassett Jn
pass
1444½
pass
1450½
+6
DM
DB
Little Somerford
pass
1448½
pass
1454¾
+6
Hullavington
1
pass
1451
pass
1457¼
+6
Badminton
pass
1454½
pass
1459¾
+5
Chipping Sodbury
pass
1457
pass
1502½
+5
Westerleigh Jn
pass
1458½
pass
1504¼
+5
Bristol Parkway [BPW]
2
1502
1503
1501½
1503½
1508
1509½
+6
DB
DT
Patchway [PWY]
2
pass
1505
pass
1511
+6
Pilning [PIL]
2
pass
1507½
pass
1514
+6
Severn Tunnel East
pass
1508½
pass
1515
+6
Severn Tunnel West
pass
1512
pass
1518¼
+6
Severn Tunnel Junction [STJ]
3
pass
1513
pass
1519½
+6
DT
DM
Magor
pass
1514½
pass
1521
+6
Llanwern West Jn
½
pass
1518
pass
1524¾
+6
East Usk Jn.
pass
1519
pass
1525¼
+6
Maindee East Jn
pass
1520
pass
1526¼
+6
ML
Maindee West Jn
pass
1520½
pass
1527¼
+6
Newport (South Wales) [NWP]
2
1522
1523
1521½
1523½
1530½
1531¼
+7
DM
DM
Gaer Jn
pass
1525
pass
1533
+8
DM
Ebbw Jn
pass
1526
pass
1533¾
+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
1541
+7
E
Cardiff East
pass
1535
pass
1542¼
+7
DR
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1536
1538
1536
1538
1543¾
1545¼
+7
E
D
Cardiff West
pass
1539
No report
Leckwith North Jn
pass
1541
pass
1548
+7
D
DM
St Fagans L C
pass
1543
pass
1550½
+7
Miskin
pass
1547
pass
1554½
+7
Pontyclun [PYC]
1
pass
1549
pass
1556½
+7
Llantrisant [LTI]
pass
1549½
No report
Llanharan [LLR]
2
pass
1551
pass
1558½
+7
Pencoed [PCD]
1
pass
1553
pass
1600¾
+7
Tremains
pass
1555½
pass
1602¾
+7
Bridgend [BGN]
1
1557
1558
1556½
1558
1604½
1606
+8
DM
DM
Stormy
pass
1602½
pass
1611¼
+8
Pyle [PYL]
1
pass
1603½
pass
1612¾
+9
Margam Moors Jn.
pass
1605
pass
1613¾
+8
DM
Margam East Jn
pass
1606
pass
1615¼
+9
Margam Middle Jn
pass
1606½
pass
1615¼
+8
Port Talbot East
pass
1607½
No report
Port Talbot Parkway [PTA]
1
1609
1610
1608½
1610
1617½
1618¾
+8
Baglan [BAJ]
1
pass
1612
pass
1621¾
+9
Briton Ferry East
pass
1613
pass
1622
+9
Briton Ferry [BNF]
1
pass
1614
pass
1623¼
+9
Court Sart Jn
pass
1614
pass
1623¼
+9
Neath [NTH]
1
1
1615
1616
1616
1617½
1625¼
1626¼
+8
Skewen [SKE]
1
pass
1620½
pass
1629½
+9
Llansamlet [LAS]
1
pass
1623
pass
1631½
+8
Landore Junction
pass
1626
pass
1634½
+8
DM
DSM
Swansea Loop East
pass
1627
pass
1636
+9
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here
3
1629
1637
1628½
1637
1638½
1643¼
+6
DSM
USM
Swansea Loop East
pass
1638½
pass
1645¼
+6
USM
DSL
Swansea Loop West
pass
1640½
pass
1647¼
+6
DSL
DM
Cockett West
pass
1644
pass
1651¾
+7
Gowerton [GWN]
1
pass
1646½
pass
1653½
+7
Duffryn West
pass
1649½
pass
1656½
+7
Llandeilo Jn
pass
1650
pass
1657
+7
Llanelli [LLE]
1
1653
1654
1652½
1654
1659¼
1700
+6
DD
Pembrey & Burry Port [PBY]
1700
1701
1659½
1701
1705
N/R
+5
Kidwelly Junction
pass
1706
No report
Kidwelly [KWL]
2
pass
1706½
No report
Bertwyn Level Crossing
pass
1708
No report
Ferryside [FYS]
1
pass
1710½
pass
1716
+5
Carmarthen Jn [XCI]
pass
1719½
pass
1724
+4
DD
Carmarthen [CMN]
2
1721
1721
1726
+5
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