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1B17 1348 London Paddington to Carmarthen
Departing on 6th January 2026

operated by
Great Western Railway
5 coaches
London Paddington - Swansea
800031
5 coaches
Swansea - Carmarthen
800031
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
2
1348
1348
1359
+11
1
Royal Oak Junction
pass
1349
pass
1400
+11
Portobello Jn (London)
pass
1350½
pass
1401¼
+10
Ladbroke Grove
pass
1351
pass
1401¾
+10
1
DM
Old Oak Common East
pass
1351½
pass
1402¾
+11
Old Oak Common West
pass
1352
pass
1403¼
+11
Friars Jn
pass
1352½
pass
1403½
+11
Acton Main Line [AML]
pass
1353
pass
1404¼
+11
Acton West
pass
1353½
pass
1406¼
+12
ML
ML
Ealing Broadway [EAL]
1
pass
1354
pass
1407¼
+13
West Ealing [WEA]
pass
1354½
pass
1409¼
+15
West Ealing Junction
pass
1354½
pass
1409¼
+15
Hanwell [HAN]
pass
1354½
pass
1410¼
+15
Southall East Jn
pass
1355½
pass
1413½
+18
Southall [STL]
1
pass
1355½
pass
1414½
+19
Southall West Jn
pass
1356
pass
1415
+19
Hayes & Harlington [HAY]
1
pass
1356½
pass
1416
+19
Heathrow Airport Jn
pass
1356½
pass
1416
+19
ML
Stockley Junction
pass
1357
pass
1416½
+19
West Drayton East
pass
1357½
pass
1417
+19
West Drayton [WDT]
1
pass
1357½
pass
1417½
+20
West Drayton Jcn
pass
1357½
pass
1417¾
+20
Iver [IVR]
1
pass
1358
pass
1418¼
+20
Langley [LNY]
1
pass
1359
pass
1419¼
+20
Dolphin Jn
pass
1359½
pass
1419¾
+20
Slough [SLO]
2
pass
1400
pass
1420½
+20
ML
Slough West
pass
1400½
pass
1421
+20
Burnham [BNM]
pass
1401½
pass
1422
+20
Taplow [TAP]
1
pass
1402
pass
1423
+21
Maidenhead East
pass
1402½
pass
1424
+21
Maidenhead [MAI]
1
pass
1403
pass
1424¼
+21
Ruscombe
pass
1406
pass
1426¾
+21
Twyford [TWY]
1
1
pass
1406½
pass
1427½
+21
ML
Twyford West
pass
1407
pass
1427¾
+20
Kennet Bridge Jn
pass
1409½
pass
1430
+20
Reading Main Line East
pass
1410
pass
1430½
+20
Reading [RDG]
9
1411
1413
1411
1413
1431¾
1433½
+20
DM
DM
Reading Main Line West
pass
1413½
pass
1434¼
+20
Reading High Level Jn
pass
1414
pass
1435¼
+21
ML
Tilehurst East Jn.
pass
1415
pass
1436½
+21
Tilehurst [TLH]
1
pass
1415
pass
1436½
+21
Pangbourne [PAN]
pass
1417
pass
1438
+21
Goring & Streatley [GOR]
1
1
pass
1419
pass
1440
+21
ML
Cholsey [CHO]
1
pass
1421
pass
1441¾
+20
Moreton Cutting
pass
1423
pass
1443
+20
Didcot East Jn
pass
1424
pass
1443½
+19
Didcot Parkway [DID]
1
pass
1424
pass
1444
+20
Didcot West End
pass
1424
No report
Foxhall Jn [XJF]
pass
1424½
pass
1444¼
+20
Milton Junction
pass
1425
pass
1444¾
+19
Steventon
pass
1426
pass
1445½
+19
Wantage Road
pass
1428
pass
1448¾
+20
Challow
pass
1430
pass
1452
+22
Uffington (Oxfordshire)
1
pass
1431
pass
1453¼
+22
Bourton
pass
1434½
pass
1456¼
+21
Swindon South Marston Jn
pass
1436
pass
1457½
+21
Swindon Stratton Green
pass
1436½
pass
1458¼
+21
Highworth Jn
pass
1437
pass
1458½
+21
Swindon East Loop
pass
1437
pass
1459¾
+22
Swindon [SWI]
4
1437
1440
1438
1440
1500½
1502¼
+22
DM
DM
Rushey Platt
pass
1441½
pass
1504
+22
Wootton Bassett Jn
pass
1444½
pass
1507
+22
DM
DB
Little Somerford
pass
1448½
pass
1511½
+23
Hullavington
1
pass
1451
pass
1514
+23
Badminton
pass
1454½
pass
1516½
+22
Chipping Sodbury
pass
1457
pass
1519½
+22
Westerleigh Jn
pass
1458½
pass
1521
+22
Bristol Parkway [BPW]
2
1502
1503
1501½
1503½
1524¾
1527¼
+23
DB
DT
Patchway [PWY]
2
pass
1505
pass
1528¾
+23
Pilning [PIL]
2
pass
1507½
pass
1531¾
+24
Severn Tunnel East
pass
1508½
pass
1532¾
+24
Severn Tunnel West
pass
1512
pass
1536¼
+24
Severn Tunnel Junction [STJ]
3
pass
1513
pass
1537¾
+24
DT
DM
Magor
pass
1514½
pass
1539¼
+24
Llanwern West Jn
½
pass
1518
pass
1543
+25
East Usk Jn.
pass
1519
pass
1543½
+24
Maindee East Jn
pass
1520
pass
1544½
+24
ML
Maindee West Jn
pass
1520½
pass
1546
+25
Newport (South Wales) [NWP]
2
1522
1523
1521½
1523½
1548¾
1550¼
+26
DM
DM
Gaer Jn
pass
1525
pass
1552
+27
DM
Ebbw Jn
pass
1526
pass
1552¾
+26
DM
DM
Marshfield
pass
1528½
pass
1555¾
+27
Rumney River Bridge Jn
pass
1531½
pass
1558
+26
Pengam Jn
pass
1531½
pass
1558½
+27
Moorland Road Junction
1
pass
1532
pass
1559¼
+27
DM
DR
Long Dyke Jn
pass
1533½
pass
1600
+26
E
Cardiff East
pass
1535
pass
1601¼
+26
DR
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
4
1536
1538
1536
1538
1602¾
1604½
+26
E
D
Cardiff West
pass
1539
No report
Leckwith North Jn
pass
1541
pass
1607¾
+26
D
DM
St Fagans L C
pass
1543
pass
1610¼
+27
Miskin
pass
1547
pass
1614¼
+27
Pontyclun [PYC]
1
pass
1549
pass
1616¼
+27
Llantrisant [LTI]
pass
1549½
No report
Llanharan [LLR]
2
pass
1551
pass
1618¼
+27
Pencoed [PCD]
1
pass
1553
pass
1621½
+28
Tremains
pass
1555½
pass
1623¾
+28
Bridgend [BGN]
1
1557
1558
1556½
1558
1625½
1626½
+28
DM
DM
Stormy
pass
1602½
pass
1633¼
+30
Pyle [PYL]
1
pass
1603½
pass
1636
+32
Margam Moors Jn.
pass
1605
pass
1638
+33
DM
Margam East Jn
pass
1606
pass
1639½
+33
Margam Middle Jn
pass
1606½
pass
1640¼
+33
Port Talbot East
pass
1607½
No report
Port Talbot Parkway [PTA]
1
1609
1610
1608½
1610
1645
1646¼
+36
Baglan [BAJ]
1
pass
1612
pass
1650
+37
Briton Ferry East
pass
1613
pass
1651¼
+38
Briton Ferry [BNF]
1
pass
1614
pass
1653¼
+39
Court Sart Jn
pass
1614
pass
1653¾
+39
Neath [NTH]
1
1
1615
1616
1616
1617½
1656¾
1658
+40
Skewen [SKE]
1
pass
1620½
pass
1703
+42
Llansamlet [LAS]
1
pass
1623
pass
1706¼
+43
Landore Junction
pass
1626
pass
1709¼
+43
DM
DSM
Swansea Loop East
pass
1627
pass
1710¾
+43
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here
2
1629
1637
1628½
1637
1712¾
1716¼
+39
DSM
USM
Swansea Loop East
pass
1638½
pass
1718
+39
USM
DSL
Swansea Loop West
pass
1640½
pass
1719¾
+39
DSL
DM
Cockett West
pass
1644
pass
1724¼
+40
Gowerton [GWN]
1
pass
1646½
pass
1726
+39
Duffryn West
pass
1649½
pass
1729
+39
Llandeilo Jn
pass
1650
pass
1729½
+39
Llanelli [LLE]
1
1653
1654
1652½
1654
1732¼
1734
+40
DD
Pembrey & Burry Port [PBY]
1700
1701
1659½
1701
1740
1742
+41
Kidwelly Junction
pass
1706
No report
Kidwelly [KWL]
2
pass
1706½
pass
1747
+40
Bertwyn Level Crossing
pass
1708
No report
Ferryside [FYS]
1
pass
1710½
pass
1751
+40
Carmarthen Jn [XCI]
pass
1719½
pass
1759
+39
DD
Carmarthen [CMN]
2
1721
1721
1801
+40
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