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1B21 1548 London Paddington to Swansea
Departing on 20th April 2024

operated by
Great Western Railway
10 coaches
800003
800002
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
8
1548
1548
1548¾
3
0.41
Royal Oak Junction
pass
1549
pass
1549¾
3
2
1.28
Portobello Jn (London)
pass
1550½
pass
1551
1.68
Ladbroke Grove
pass
1551
pass
1551¾
2
DM
2.55
Old Oak Common East
pass
1551½
pass
1552½
3.15
Old Oak Common West
pass
1552
pass
1553
+1
3.48
Friars Jn
pass
1552½
pass
1553¼
4.16
Acton Main Line [AML]
pass
1553
pass
1553¾
+1
4.75
Acton West
pass
1553½
pass
1554¼
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1554
pass
1554¾
6.41
West Ealing [WEA]
pass
1554½
pass
1555¼
6.49
West Ealing Junction
pass
1554½
pass
1555¼
7.23
Hanwell [HAN]
pass
1554½
pass
1555½
8.57
Southall East Jn
pass
1555½
pass
1556¼
+1
9.01
Southall [STL]
1
pass
1555½
pass
1556¾
+1
9.65
Southall West Jn
pass
1556
pass
1557
+1
10.66
Hayes & Harlington [HAY]
1
pass
1556½
pass
1558
+1
11.09
Heathrow Airport Jn
pass
1556½
pass
1557¾
+1
ML
12.04
Stockley Junction
pass
1557
pass
1558¼
+1
12.62
West Drayton East
pass
1557½
pass
1558¾
+1
13.12
West Drayton [WDT]
1
pass
1557½
pass
1559¼
+1
13.26
West Drayton Jcn
pass
1557½
pass
1559½
+1
14.55
Iver [IVR]
1
pass
1558
pass
1600
+1
16.13
Langley [LNY]
1
pass
1559
pass
1601
+2
17.13
Dolphin Jn
pass
1559½
pass
1601¼
+1
18.31
Slough [SLO]
2
pass
1600
pass
1601¾
+1
ML
19.06
Slough West
pass
1600½
pass
1602
+1
20.72
Burnham [BNM]
pass
1601½
pass
1602¾
+1
22.34
Taplow [TAP]
1
pass
1602
pass
1603½
+1
23.53
Maidenhead East
pass
1602½
pass
1604½
+1
24.14
Maidenhead [MAI]
1
pass
1603
pass
1604¾
+1
29.40
Ruscombe
pass
1606
pass
1607
+1
30.76
Twyford [TWY]
1
1
pass
1606½
pass
1607¾
+1
DD
31.57
Twyford West
pass
1607
pass
1608
+1
35.10
Kennet Bridge Jn
pass
1609½
pass
1610¼
35.56
Reading Main Line East
pass
1610
pass
1611
35.75
Reading [RDG]
9
1611
1613
1611
1613
1612
1613½
DM
DM
36.12
Reading Main Line West
pass
1613½
pass
1614¼
36.45
Reading High Level Jn
pass
1614
pass
1615¼
+1
ML
38.29
Tilehurst East Jn.
pass
1615
pass
1616¼
+1
38.47
Tilehurst [TLH]
1
pass
1615
pass
1616¼
+1
41.38
Pangbourne [PAN]
pass
1617
pass
1617½
44.55
Goring & Streatley [GOR]
1
1
pass
1619
pass
1619¼
ML
48.32
Cholsey [CHO]
1
pass
1621
pass
1621
51.32
Moreton Cutting
pass
1623
pass
1622½
52.61
Didcot East Jn
pass
1624
pass
1622¾
53.05
Didcot Parkway [DID]
1
pass
1624
pass
1623¼
53.20
Didcot West End
pass
1624
No report
53.50
Foxhall Jn [XJF]
pass
1624½
pass
1623½
55.14
Milton Junction
pass
1625
pass
1624
-1
56.27
Steventon
pass
1626
pass
1624¾
60.17
Wantage Road
pass
1628
pass
1627
63.75
Challow
pass
1630
pass
1628¾
-1
66.34
Uffington (Oxfordshire)
1
pass
1631
pass
1629¾
-1
72.25
Bourton
pass
1634½
pass
1632¾
-1
74.46
Swindon South Marston Jn
pass
1636
pass
1633¾
-2
75.58
Swindon Stratton Green
pass
1636½
pass
1634½
-1
76.27
Highworth Jn
pass
1637
pass
1634½
-2
76.59
Swindon East Loop
pass
1637
pass
1635¾
-1
77.18
Swindon [SWI]
4
1638
1640
1638
1640
1636½
1639¾
DM
DM
82.67
Wootton Bassett Jn
pass
1644½
pass
1644¼
DM
DB
89.57
Little Somerford
pass
1648½
pass
1648¼
94.16
Hullavington
1
pass
1651
pass
1650¾
99.76
Badminton
pass
1654½
pass
1653¼
-1
104.40
Chipping Sodbury
pass
1657
pass
1655½
-1
107.09
Westerleigh Jn
pass
1658½
pass
1657
-1
111.57
Bristol Parkway [BPW]
½
2
1702
1704
1701½
1704
1701
1704
DB
DT
112.79
Patchway [PWY]
2
pass
1706
pass
1706
116.45
Pilning [PIL]
2
pass
1708½
pass
1709
118.03
Severn Tunnel East
pass
1709½
pass
1710
122.31
Severn Tunnel West
pass
1713
pass
1713¼
123.41
Severn Tunnel Junction [STJ]
3
pass
1714
pass
1715
+1
DT
DM
125.66
Magor
pass
1715½
pass
1717¾
+2
130.72
Llanwern West Jn
pass
1719
pass
1721½
+2
131.63
East Usk Jn.
pass
1720
pass
1722¼
+2
132.55
Maindee East Jn
pass
1720½
pass
1723
+2
132.77
Maindee West Jn
pass
1721
pass
1723¾
+2
133.31
Newport (South Wales) [NWP]
2
1722
1724
1722
1724½
1725¾
1727¼
+2
DM
DM
134.13
Gaer Jn
pass
1726
pass
1729¼
+3
DM
134.68
Ebbw Jn
pass
1727
pass
1730¼
+3
DM
DM
138.41
Marshfield
1
pass
1729½
pass
1733¼
+3
142.42
Rumney River Bridge Jn
pass
1733
pass
1735½
+2
143.01
Pengam Jn
pass
1733½
pass
1736
+2
143.46
Moorland Road Junction
pass
1734
pass
1736¾
+2
144.16
Long Dyke Jn
pass
1734½
pass
1738
+3
E
144.79
Cardiff East
pass
1736
pass
1739
+3
DM
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1737
1739
1736½
1739½
1740½
1742¾
+3
E
D
145.37
Cardiff West
pass
1740½
No report
146.36
Leckwith North Jn
pass
1742½
pass
1746
+3
D
DM
149.14
St Fagans L C
pass
1744½
pass
1748¼
+3
154.08
Miskin
pass
1748½
pass
1752¼
+3
156.21
Pontyclun [PYC]
1
pass
1750½
pass
1754¾
+4
156.57
Llantrisant [LTI]
pass
1751
No report
158.53
Llanharan [LLR]
2
pass
1752½
pass
1757¾
+5
161.41
Pencoed [PCD]
1
pass
1754½
pass
1800
+5
164.42
Tremains
pass
1757
pass
1802
+5
165.26
Bridgend [BGN]
1
1758
1759
1758
1759½
1803
1805½
+6
DM
169.46
Stormy
pass
1804
pass
1810¼
+6
171.21
Pyle [PYL]
1
pass
1805
pass
1811¼
+6
173.45
Margam Moors Jn.
pass
1806½
pass
1812½
+6
DM
175.12
Margam East Jn
pass
1807½
pass
1814
+6
176.00
Margam Middle Jn
pass
1808½
pass
1814
+5
176.70
Port Talbot East
pass
1809
No report
177.39
Port Talbot Parkway [PTA]
1
1810
1811
1810
1811½
1816¼
1818½
+7
179.38
Baglan [BAJ]
1
pass
1813½
pass
1821½
+7
180.09
Briton Ferry East
pass
1814½
pass
1821¾
+7
181.20
Briton Ferry [BNF]
1
pass
1815½
pass
1823
+7
181.38
Court Sart Jn
pass
1815½
pass
1822¾
+7
183.00
Neath [NTH]
1
1
1818
1819
1817½
1819
1824¾
1826¾
+7
185.06
Skewen [SKE]
1
pass
1822
pass
1829½
+7
186.68
Llansamlet [LAS]
1
pass
1824½
pass
1831½
+7
189.42
Landore Junction
pass
1827½
pass
1834½
+7
DM
DSM
190.23
Swansea Loop East
pass
1828½
pass
1836¼
+7
190.67
Swansea [SWA]
3
1830
1830
1838½
+8
DSM
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