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1B17 1348 London Paddington to Carmarthen
Departing on 11th December 2025

operated by
Great Western Railway
10 coaches
London Paddington - Swansea
800030
800012
5 coaches
Swansea - Carmarthen
800012
GBTT
WTT
RTTRealtime
Route
Mi.Ch
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
0.00
London Paddington [PAD]
Pathed as Class 80x on electric at 125mph
1
1348
1348
1347½
1
0.41
Royal Oak Junction
pass
1349
pass
1348¾
1.28
Portobello Jn (London)
pass
1350½
pass
1349¾
1.68
Ladbroke Grove
pass
1351
pass
1350½
1
DM
2.55
Old Oak Common East
pass
1351½
pass
1351½
3.15
Old Oak Common West
pass
1352
pass
1352
3.48
Friars Jn
pass
1352½
pass
1352¼
4.16
Acton Main Line [AML]
pass
1353
pass
1352¾
4.75
Acton West
pass
1353½
pass
1353¼
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1354
pass
1353½
6.41
West Ealing [WEA]
pass
1354½
pass
1354
6.49
West Ealing Junction
pass
1354½
pass
1354
7.23
Hanwell [HAN]
pass
1354½
pass
1354½
8.57
Southall East Jn
pass
1355½
pass
1355¼
9.01
Southall [STL]
1
pass
1355½
pass
1355¾
DM
9.65
Southall West Jn
pass
1356
No report
10.66
Hayes & Harlington [HAY]
1
pass
1356½
pass
1356½
11.09
Heathrow Airport Jn
pass
1356½
pass
1356¼
ML
12.04
Stockley Junction
pass
1357
pass
1356¾
12.62
West Drayton East
pass
1357½
pass
1357
13.12
West Drayton [WDT]
1
pass
1357½
pass
1357½
13.26
West Drayton Jcn
pass
1357½
pass
1357¾
14.55
Iver [IVR]
1
pass
1358
pass
1358¼
16.13
Langley [LNY]
1
pass
1359
pass
1359¼
17.13
Dolphin Jn
pass
1359½
pass
1359½
18.31
Slough [SLO]
2
pass
1400
pass
1400
ML
19.06
Slough West
pass
1400½
pass
1400¼
20.72
Burnham [BNM]
pass
1401½
pass
1401
22.34
Taplow [TAP]
1
pass
1402
pass
1401¾
23.53
Maidenhead East
pass
1402½
pass
1402¾
24.14
Maidenhead [MAI]
1
pass
1403
pass
1403
29.40
Ruscombe
pass
1406
pass
1405¼
30.76
Twyford [TWY]
1
1
pass
1406½
pass
1406
ML
31.57
Twyford West
pass
1407
pass
1406¼
35.10
Kennet Bridge Jn
pass
1409½
pass
1408½
35.56
Reading Main Line East
pass
1410
pass
1408¾
-1
35.75
Reading [RDG]
9
1411
1413
1411
1413
1410
1412¾
DM
DM
36.12
Reading Main Line West
pass
1413½
pass
1413½
36.45
Reading High Level Jn
pass
1414
pass
1414½
ML
38.29
Tilehurst East Jn.
pass
1415
pass
1415½
38.47
Tilehurst [TLH]
1
pass
1415
pass
1415½
41.38
Pangbourne [PAN]
pass
1417
pass
1416¾
44.55
Goring & Streatley [GOR]
1
1
pass
1419
pass
1418¾
ML
48.32
Cholsey [CHO]
1
pass
1421
pass
1420¼
51.32
Moreton Cutting
pass
1423
pass
1421½
-1
52.61
Didcot East Jn
pass
1424
pass
1422
-1
53.05
Didcot Parkway [DID]
1
pass
1424
pass
1422¾
-1
53.20
Didcot West End
pass
1424
No report
53.50
Foxhall Jn [XJF]
pass
1424½
pass
1422¾
-1
55.14
Milton Junction
pass
1425
pass
1423¼
-1
56.27
Steventon
pass
1426
pass
1424
-1
60.17
Wantage Road
pass
1428
pass
1426½
-1
63.75
Challow
pass
1430
pass
1428½
-1
66.34
Uffington (Oxfordshire)
1
pass
1431
pass
1429¾
-1
72.25
Bourton
pass
1434½
pass
1432½
-1
74.46
Swindon South Marston Jn
pass
1436
pass
1433¾
-2
75.58
Swindon Stratton Green
pass
1436½
pass
1434½
-2
76.27
Highworth Jn
pass
1437
pass
1434¾
-2
76.59
Swindon East Loop
pass
1437
pass
1435¾
-1
77.18
Swindon [SWI]
4
1437
1440
1438
1440
1436¾
1439½
DM
DM
82.67
Wootton Bassett Jn
pass
1444½
pass
1444¼
DM
DB
89.57
Little Somerford
pass
1448½
pass
1448¼
94.16
Hullavington
1
pass
1451
pass
1450¾
99.76
Badminton
pass
1454½
pass
1453
-1
104.40
Chipping Sodbury
pass
1457
pass
1456
107.09
Westerleigh Jn
pass
1458½
pass
1457¾
111.57
Bristol Parkway [BPW]
2
1502
1503
1501½
1503½
1501½
1503¼
DB
DT
112.79
Patchway [PWY]
2
pass
1505
pass
1504¾
116.45
Pilning [PIL]
2
pass
1507½
pass
1507½
118.03
Severn Tunnel East
pass
1508½
pass
1508½
122.31
Severn Tunnel West
pass
1512
pass
1511¾
123.41
Severn Tunnel Junction [STJ]
3
pass
1513
pass
1513¼
DT
DM
125.66
Magor
pass
1514½
pass
1514½
130.72
Llanwern West Jn
pass
1518
pass
1518¼
131.63
East Usk Jn.
pass
1519
pass
1518¾
132.55
Maindee East Jn
pass
1519½
pass
1520
132.77
Maindee West Jn
pass
1520
pass
1520¾
133.31
Newport (South Wales) [NWP]
2
1521
1523
1521
1523
1522
1523¾
DM
DM
134.13
Gaer Jn
pass
1524½
pass
1525¼
DM
134.68
Ebbw Jn
pass
1525½
pass
1526
DM
DM
138.41
Marshfield
1
pass
1528
pass
1528¾
142.42
Rumney River Bridge Jn
pass
1531½
pass
1531¼
143.01
Pengam Jn
pass
1532
pass
1531¾
143.46
Moorland Road Junction
pass
1532½
pass
1532½
DM
DR
144.16
Long Dyke Jn
pass
1533
pass
1533¼
E
144.79
Cardiff East
pass
1534½
pass
1534¼
DR
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
4
1534
1537
1535
1537
1535¼
1537¾
E
D
145.37
Cardiff West
pass
1538
No report
146.36
Leckwith North Jn
pass
1540
pass
1541
+1
D
DM
149.14
St Fagans L C
pass
1542
pass
1543½
+1
154.08
Miskin
pass
1546
pass
1547½
+1
156.21
Pontyclun [PYC]
1
pass
1548
pass
1549½
+1
156.57
Llantrisant [LTI]
pass
1548½
No report
158.53
Llanharan [LLR]
2
pass
1550
pass
1551½
+1
161.41
Pencoed [PCD]
1
pass
1552
pass
1553½
+1
164.42
Tremains
pass
1554½
pass
1555½
+1
165.26
Bridgend [BGN]
1
1556
1557
1555½
1557
1557½
1600
+3
DM
DM
169.46
Stormy
pass
1601½
pass
1605½
+4
171.21
Pyle [PYL]
1
pass
1602½
pass
1606¾
+4
173.45
Margam Moors Jn.
pass
1604
pass
1607¾
+3
DM
175.12
Margam East Jn
pass
1605
pass
1609¼
+4
176.00
Margam Middle Jn
pass
1605½
pass
1609¼
+3
176.70
Port Talbot East
pass
1606½
No report
177.39
Port Talbot Parkway [PTA]
1
1608
1609
1607½
1609
1611½
1613¼
+4
179.38
Baglan [BAJ]
1
pass
1611
pass
1616½
+5
180.09
Briton Ferry East
pass
1612
pass
1616¾
+5
181.20
Briton Ferry [BNF]
1
pass
1613
pass
1618
+5
181.38
Court Sart Jn
pass
1613
pass
1618
+5
183.00
Neath [NTH]
1 ½
1
1615
1616
1615
1616½
1619¾
1622
+5
185.06
Skewen [SKE]
1
pass
1619½
pass
1625¼
+5
186.68
Llansamlet [LAS]
1
pass
1622
pass
1627¼
+5
189.42
Landore Junction
pass
1625½
pass
1630¼
+4
DM
DSM
190.23
Swansea Loop East
pass
1626½
pass
1631¾
+5
190.67
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service reverses here
3
1627
1637
1628
1637
1634½
1642½
+5
DSM
USM
191.31
Swansea Loop East
pass
1638½
pass
1644¼
+5
USM
DSL
192.04
Swansea Loop West
pass
1640½
pass
1646
+5
DSL
DM
194.56
Cockett West
pass
1644
pass
1650
+5
196.35
Gowerton [GWN]
1
pass
1646½
pass
1651½
+5
199.78
Duffryn West
pass
1649½
pass
1654½
+5
200.39
Llandeilo Jn
pass
1650
pass
1655
+5
202.10
Llanelli [LLE]
1
1653
1654
1652½
1654
1657½
1658
+4
DD
206.05
Pembrey & Burry Port [PBY]
1700
1701
1659½
1701
No report
210.64
Kidwelly Junction
pass
1706
No report
211.22
Kidwelly [KWL]
pass
1706½
No report
215.41
Ferryside [FYS]
1
pass
1710
No report
222.00
Carmarthen Jn [XCI]
pass
1719
pass
1720
+1
DD
222.45
Carmarthen [CMN]
2
1721
1721
1723
+2
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