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1B21 1548 London Paddington to Swansea
Departing on 10th January 2025

operated by
Great Western Railway
9 coaches
800303
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
2
1548
1548
1553¼
+5
3
0.41
Royal Oak Junction
pass
1549
pass
1554½
+5
3
2
1.28
Portobello Jn (London)
pass
1550½
pass
1555¾
+5
1.68
Ladbroke Grove
pass
1551
pass
1556¼
+5
2
DM
2.55
Old Oak Common East
pass
1551½
pass
1557¼
+5
3.15
Old Oak Common West
pass
1552
pass
1557¾
+5
3.48
Friars Jn
pass
1552½
pass
1558
+5
4.16
Acton Main Line [AML]
pass
1553
pass
1558½
+5
4.75
Acton West
pass
1553½
pass
1559
+5
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1554
pass
1559½
+5
6.41
West Ealing [WEA]
pass
1554½
pass
1600
+5
6.49
West Ealing Junction
pass
1554½
pass
1600
+5
7.23
Hanwell [HAN]
pass
1554½
pass
1600¼
+5
8.57
Southall East Jn
pass
1555½
pass
1601
+5
9.01
Southall [STL]
1
pass
1555½
pass
1601½
+6
9.65
Southall West Jn
pass
1556
pass
1601½
+5
10.66
Hayes & Harlington [HAY]
1
pass
1556½
pass
1602¼
+6
11.09
Heathrow Airport Jn
pass
1556½
pass
1602¼
+5
ML
12.04
Stockley Junction
pass
1557
pass
1602½
+5
12.62
West Drayton East
pass
1557½
pass
1603
+5
13.12
West Drayton [WDT]
1
pass
1557½
pass
1603½
+6
13.26
West Drayton Jcn
pass
1557½
pass
1603½
+6
14.55
Iver [IVR]
1
pass
1558
pass
1604
+5
16.13
Langley [LNY]
1
pass
1559
pass
1605
+6
17.13
Dolphin Jn
pass
1559½
pass
1605¼
+6
18.31
Slough [SLO]
2
pass
1600
pass
1605¾
+5
ML
19.06
Slough West
pass
1600½
pass
1606¼
+5
20.72
Burnham [BNM]
pass
1601½
pass
1607
+5
22.34
Taplow [TAP]
1
pass
1602
pass
1607¾
+5
23.53
Maidenhead East
pass
1602½
pass
1608½
+5
24.14
Maidenhead [MAI]
1
pass
1603
pass
1608¾
+5
29.40
Ruscombe
pass
1606
pass
1611
+5
30.76
Twyford [TWY]
1
1
pass
1606½
pass
1611¾
+5
ML
31.57
Twyford West
pass
1607
pass
1612¼
+5
35.10
Kennet Bridge Jn
pass
1609½
pass
1615
+5
35.56
Reading Main Line East
pass
1610
pass
1618¼
+8
35.75
Reading [RDG]
8
1611
1613
1611
1613
1619½
1622
+9
DM
DM
36.12
Reading Main Line West
pass
1613½
pass
1622¾
+9
36.45
Reading High Level Jn
pass
1614
pass
1623¾
+9
ML
38.29
Tilehurst East Jn.
pass
1615
pass
1626¼
+11
38.47
Tilehurst [TLH]
1
pass
1615
pass
1626½
+11
41.38
Pangbourne [PAN]
pass
1617
pass
1628¼
+11
44.55
Goring & Streatley [GOR]
1
1
pass
1619
pass
1630
+11
ML
48.32
Cholsey [CHO]
1
pass
1621
pass
1631¾
+10
51.32
Moreton Cutting
pass
1623
pass
1634¼
+11
52.61
Didcot East Jn
pass
1624
pass
1635
+11
53.05
Didcot Parkway [DID]
1
pass
1624
pass
1636
+12
53.20
Didcot West End
pass
1624
No report
53.50
Foxhall Jn [XJF]
pass
1624½
pass
1636¼
+12
55.14
Milton Junction
pass
1625
pass
1636¾
+11
56.27
Steventon
pass
1626
pass
1637¾
+12
60.17
Wantage Road
pass
1628
pass
1639¾
+11
63.75
Challow
pass
1630
pass
1641½
+11
66.34
Uffington (Oxfordshire)
1 ½
pass
1631
pass
1642¾
+11
72.25
Bourton
pass
1635
pass
1645¾
+10
74.46
Swindon South Marston Jn
pass
1636½
pass
1647
+10
75.58
Swindon Stratton Green
pass
1637
pass
1648¾
+11
76.27
Highworth Jn
pass
1637½
pass
1651
+13
76.59
Swindon East Loop
pass
1637½
pass
1652¼
+14
77.18
Swindon [SWI]
4
1638
1640
1638½
1640½
1653¼
1655
+14
DM
DM
82.67
Wootton Bassett Jn
pass
1645
pass
1659¾
+14
DM
DB
89.57
Little Somerford
pass
1649
pass
1703¾
+15
94.16
Hullavington
1
pass
1651½
pass
1706¼
+14
99.76
Badminton
pass
1655
pass
1708¾
+13
104.40
Chipping Sodbury
pass
1657½
pass
1710¾
+13
107.09
Westerleigh Jn
½
pass
1659
pass
1712½
+13
111.57
Bristol Parkway [BPW]
2
1702
1704
1702½
1704½
1716½
1718½
+14
DB
DT
112.79
Patchway [PWY]
2
pass
1706
pass
1720
+14
116.45
Pilning [PIL]
2
pass
1708½
pass
1723
+14
118.03
Severn Tunnel East
pass
1709½
pass
1723¾
+14
122.31
Severn Tunnel West
pass
1713
pass
1727
+14
123.41
Severn Tunnel Junction [STJ]
3
pass
1714
pass
1728½
+14
DT
DM
125.66
Magor
pass
1715½
pass
1730
+14
130.72
Llanwern West Jn
pass
1719
pass
1733½
+14
131.63
East Usk Jn.
pass
1720
pass
1734
+14
132.55
Maindee East Jn
pass
1720½
pass
1735
+14
132.77
Maindee West Jn
pass
1721
pass
1735¾
+14
133.31
Newport (South Wales) [NWP]
2
1722
1724
1722
1724
1737¼
1738¾
+14
DM
DM
134.13
Gaer Jn
pass
1725½
pass
1740½
+14
DM
134.68
Ebbw Jn
pass
1726½
pass
1741¼
+14
DM
DM
138.41
Marshfield
1
pass
1729
pass
1744
+15
142.42
Rumney River Bridge Jn
pass
1732½
pass
1746¼
+13
143.01
Pengam Jn
pass
1733
pass
1746¾
+13
143.46
Moorland Road Junction
pass
1733½
pass
1747
+13
144.16
Long Dyke Jn
pass
1734
pass
1748
+14
E
144.79
Cardiff East
pass
1735½
pass
1749
+13
DM
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1735
1739
1736
1739
1753¾
1756½
+17
E
D
145.37
Cardiff West
pass
1740
No report
146.36
Leckwith North Jn
pass
1742
pass
1759¼
+17
D
DM
149.14
St Fagans L C
pass
1744
pass
1801¾
+17
154.08
Miskin
pass
1748
pass
1805½
+17
156.21
Pontyclun [PYC]
1
pass
1750
pass
1808
+18
156.57
Llantrisant [LTI]
pass
1750½
No report
158.53
Llanharan [LLR]
2
pass
1752
pass
1812¾
+21
161.41
Pencoed [PCD]
1
pass
1754
pass
1817½
+23
164.42
Tremains
pass
1756½
pass
1820¾
+24
165.26
Bridgend [BGN]
1
1758
1800
1757½
1800
1822½
1824¼
+24
DM
DM
169.46
Stormy
½
pass
1804½
pass
1829
+24
171.21
Pyle [PYL]
1
pass
1806
pass
1831
+25
173.45
Margam Moors Jn.
pass
1807½
pass
1832¼
+24
DM
175.12
Margam East Jn
pass
1808½
pass
1833¾
+25
176.00
Margam Middle Jn
pass
1809
pass
1834
+24
176.70
Port Talbot East
pass
1810
No report
177.39
Port Talbot Parkway [PTA]
1
1811
1812
1811
1812½
1838¾
1839¾
+27
179.38
Baglan [BAJ]
1
pass
1814½
pass
1843½
+28
180.09
Briton Ferry East
pass
1815½
pass
1844½
+29
181.20
Briton Ferry [BNF]
1
pass
1816½
pass
1846¾
+30
181.38
Court Sart Jn
pass
1816½
pass
1847¾
+31
183.00
Neath [NTH]
1 2½
1
1819
1820
1818½
1820
1850¾
1852¼
+32
185.06
Skewen [SKE]
1
pass
1824
pass
1855¾
+32
186.68
Llansamlet [LAS]
1
pass
1826½
pass
1859¼
+32
189.42
Landore Junction
pass
1831
pass
1903
+32
DM
DSM
190.23
Swansea Loop East
pass
1832
pass
1904½
+32
190.67
Swansea [SWA]
3
1834
1834
1906½
+32
DSM
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