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1B17 1346 London Paddington to Carmarthen
Departing on 29th December 2025

operated by
Great Western Railway
GBTT
WTT
Route
Location
Pl
Arr
Dep
Arr
Dep
Path
Line
London Paddington [PAD]
forms from 1L16 from Carmarthen
3
1346
1346
2
Royal Oak Junction
pass
1347
2
Portobello Jn (London)
pass
1348
2
Ladbroke Grove
pass
1349
2
ML
Acton West
pass
1351½
ML
ML
Southall [STL]
1
1
pass
1353½
ML
Heathrow Airport Jn
pass
1355½
ML
Slough [SLO]
2
pass
1359
ML
Maidenhead [MAI]
1
pass
1402
ML
Twyford [TWY]
1
1
pass
1405½
ML
Kennet Bridge Jn
pass
1408½
DML
Reading [RDG]
9
1410
1413
1410
1413
ML
Reading High Level Jn
pass
1414
ML
Goring & Streatley [GOR]
1
pass
1419
ML
Didcot Parkway [DID]
1
pass
1424
Wantage Road
pass
1428
Challow
pass
1430
Uffington (Oxfordshire)
1
pass
1431
Swindon [SWI]
4
1437
1440
1438
1440
Wootton Bassett Jn
pass
1444½
Hullavington
1
pass
1451
Westerleigh Jn
pass
1458½
Bristol Parkway [BPW]
2
1502
1503
1501½
1503½
Patchway [PWY]
2
pass
1505
Pilning [PIL]
2
pass
1507½
Severn Tunnel East
pass
1508½
Severn Tunnel West
pass
1512
Severn Tunnel Junction [STJ]
3
pass
1513
ML
Llanwern West Jn
½
pass
1518
Maindee East Jn
pass
1520
ML
Maindee West Jn
pass
1520½
Newport (South Wales) [NWP]
Pathed as Class 80x on diesel from here
2
1522
1523
1521½
1523½
DM
Gaer Jn
pass
1525
ML
Ebbw Jn
4
pass
1526
Marshfield
1 2
pass
1532½
Long Dyke Jn
3
pass
1539½
E
Cardiff Central [CDF]
4
1545
1546
1545
1547
Cardiff Radyr Branch Jn
pass
1549
Penarth Curve North Jn
1
pass
1550
Ninian Park [NNP]
1
pass
1552
Leckwith North Jn
pass
1553
Pontyclun [PYC]
pass
1601½
Bridgend [BGN]
1
1609
1610
1609
1610½
Stormy
pass
1615
Margam Moors Jn.
pass
1617½
Margam East Jn
pass
1618½
Port Talbot Parkway [PTA]
1
1621
1622
1621
1622½
Court Sart Jn
pass
1626½
Neath [NTH]
1
1628
1629
1628½
1630
Swansea Loop East
pass
1639½
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service divides here, reverses here
3
1641
1659
1641
1659
Swansea Loop East
pass
1700½
Swansea Loop West
pass
1702½
Gowerton [GWN]
pass
1709
Llandeilo Jn
pass
1712½
Llanelli [LLE]
DPL
1715
1716
1715
1716½
Pembrey & Burry Port [PBY]
1722
1723
1722
1723½
Kidwelly [KWL]
2
pass
1729
Bertwyn Level Crossing
pass
1730½
Ferryside [FYS]
1
pass
1733
Carmarthen Jn [XCI]
pass
1742
Carmarthen [CMN]
2
1744
1744
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