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

operated by
Great Western Railway
10 coaches
800036
800019
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
9
1548
1548
1548
3
0.41
Royal Oak Junction
pass
1549
pass
1549¼
3
2
1.28
Portobello Jn (London)
pass
1550½
pass
1550¼
1.68
Ladbroke Grove
pass
1551
pass
1551
2
DM
2.55
Old Oak Common East
pass
1551½
pass
1551¾
3.15
Old Oak Common West
pass
1552
pass
1552¼
3.48
Friars Jn
pass
1552½
pass
1552½
4.16
Acton Main Line [AML]
pass
1553
pass
1553¼
4.75
Acton West
pass
1553½
pass
1553½
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1554
pass
1554
6.41
West Ealing [WEA]
pass
1554½
pass
1554¼
6.49
West Ealing Junction
pass
1554½
pass
1554¼
7.23
Hanwell [HAN]
pass
1554½
pass
1554¾
8.57
Southall East Jn
pass
1555½
pass
1555½
9.01
Southall [STL]
1
pass
1555½
pass
1556
9.65
Southall West Jn
pass
1556
pass
1556
10.66
Hayes & Harlington [HAY]
1
pass
1556½
pass
1556¾
11.09
Heathrow Airport Jn
pass
1556½
pass
1556½
ML
12.04
Stockley Junction
pass
1557
pass
1557
12.62
West Drayton East
pass
1557½
pass
1557½
13.12
West Drayton [WDT]
1
pass
1557½
pass
1558
13.26
West Drayton Jcn
pass
1557½
pass
1558
14.55
Iver [IVR]
1
pass
1558
pass
1558½
16.13
Langley [LNY]
1
pass
1559
pass
1559½
17.13
Dolphin Jn
pass
1559½
pass
1559¾
18.31
Slough [SLO]
2
pass
1600
pass
1600¼
ML
19.06
Slough West
pass
1600½
pass
1600½
20.72
Burnham [BNM]
pass
1601½
pass
1601¼
22.34
Taplow [TAP]
1
pass
1602
pass
1602
23.53
Maidenhead East
pass
1602½
pass
1603
24.14
Maidenhead [MAI]
1
pass
1603
pass
1603¼
29.40
Ruscombe
pass
1606
pass
1605½
30.76
Twyford [TWY]
1
1
pass
1606½
pass
1606¼
ML
31.57
Twyford West
pass
1607
pass
1606½
35.10
Kennet Bridge Jn
pass
1609½
pass
1609¼
35.56
Reading Main Line East
pass
1610
pass
1610¼
35.75
Reading [RDG]
8
1611
1613
1611
1613
1611½
1618
+5
DM
FVL
36.12
Reading Main Line West
pass
1613½
pass
1618¾
+5
36.45
Reading High Level Jn
pass
1614
pass
1619¼
+5
ML
38.29
Tilehurst East Jn.
pass
1615
pass
1621¼
+6
38.47
Tilehurst [TLH]
3
pass
1615
pass
1621¼
+6
41.38
Pangbourne [PAN]
1
pass
1617
pass
1623
+6
44.55
Goring & Streatley [GOR]
1
3
pass
1619
pass
1625
+6
ML
48.32
Cholsey [CHO]
3
pass
1621
pass
1636
+15
51.32
Moreton Cutting
pass
1623
pass
1650½
+27
52.61
Didcot East Jn
pass
1624
pass
1655½
+31
53.05
Didcot Parkway [DID]
3
pass
1624
pass
1658½
+34
DR
RL
53.20
Didcot West End
pass
1624
No report
53.50
Foxhall Jn [XJF]
pass
1624½
pass
1703
+38
RL
DM
55.14
Milton Junction
pass
1625
pass
1705
+39
56.27
Steventon
pass
1626
pass
1706
+40
60.17
Wantage Road
pass
1628
pass
1708¼
+40
63.75
Challow
pass
1630
pass
1710
+40
66.34
Uffington (Oxfordshire)
1 ½
pass
1631
pass
1711
+40
72.25
Bourton
pass
1635
pass
1714
+39
74.46
Swindon South Marston Jn
pass
1636½
pass
1715
+38
75.58
Swindon Stratton Green
pass
1637
pass
1716
+39
76.27
Highworth Jn
pass
1637½
pass
1716
+38
76.59
Swindon East Loop
pass
1637½
pass
1717¼
+39
77.18
Swindon [SWI]
4
1638
1640
1638½
1640½
1718¼
1720¾
+40
DM
DM
82.67
Wootton Bassett Jn
pass
1645
pass
1725¼
+40
DM
DB
89.57
Little Somerford
pass
1649
pass
1729½
+40
94.16
Hullavington
1
pass
1651½
pass
1731¾
+40
99.76
Badminton
pass
1655
pass
1734¼
+39
104.40
Chipping Sodbury
pass
1657½
pass
1736¼
+39
107.09
Westerleigh Jn
½
pass
1659
pass
1739¼
+40
111.57
Bristol Parkway [BPW]
2
1702
1704
1702½
1704½
1744¾
1747
+42
DB
DT
112.79
Patchway [PWY]
2
pass
1706
pass
1749¾
+43
116.45
Pilning [PIL]
2
pass
1708½
pass
1753¾
+45
118.03
Severn Tunnel East
pass
1709½
pass
1755½
+46
122.31
Severn Tunnel West
pass
1713
pass
1759
+46
123.41
Severn Tunnel Junction [STJ]
3
pass
1714
pass
1800½
+46
DT
DM
125.66
Magor
pass
1715½
pass
1802
+46
130.72
Llanwern West Jn
pass
1719
pass
1805¾
+46
131.63
East Usk Jn.
pass
1720
pass
1806¾
+46
132.55
Maindee East Jn
pass
1720½
pass
1808¼
+47
132.77
Maindee West Jn
pass
1721
pass
1809½
+48
133.31
Newport (South Wales) [NWP]
2
1722
1724
1722
1724
1811½
1812¾
+48
DM
DM
134.13
Gaer Jn
pass
1725½
pass
1814½
+49
DM
134.68
Ebbw Jn
pass
1726½
pass
1815¼
+48
DM
DM
138.41
Marshfield
1
pass
1729
pass
1818
+49
142.42
Rumney River Bridge Jn
pass
1732½
pass
1820½
+48
143.01
Pengam Jn
pass
1733
pass
1821
+48
143.46
Moorland Road Junction
pass
1733½
pass
1821½
+48
144.16
Long Dyke Jn
pass
1734
pass
1823¼
+49
E
144.79
Cardiff East
pass
1735½
pass
1824½
+49
DM
E
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
4
1735
1739
1736
1739
1826½
1831½
+52
E
D
145.37
Cardiff West
pass
1740
No report
146.36
Leckwith North Jn
pass
1742
pass
1834¾
+52
D
DM
149.14
St Fagans L C
pass
1744
pass
1837
+52
154.08
Miskin
pass
1748
pass
1841
+52
156.21
Pontyclun [PYC]
1
pass
1750
pass
1842¾
+52
156.57
Llantrisant [LTI]
pass
1750½
No report
158.53
Llanharan [LLR]
2
pass
1752
pass
1845
+53
161.41
Pencoed [PCD]
1
pass
1754
pass
1849
+55
164.42
Tremains
pass
1756½
pass
1851½
+55
165.26
Bridgend [BGN]
1
1758
1800
1757½
1800
1853½
1855
+55
DM
DM
169.46
Stormy
½
pass
1804½
pass
1859¾
+55
171.21
Pyle [PYL]
1
pass
1806
pass
1900¾
+55
173.45
Margam Moors Jn.
pass
1807½
pass
1902
+54
DM
175.12
Margam East Jn
pass
1808½
pass
1903¼
+54
176.00
Margam Middle Jn
pass
1809
pass
1903½
+54
176.70
Port Talbot East
pass
1810
No report
177.39
Port Talbot Parkway [PTA]
1
1811
1812
1811
1812½
1905¾
1907
+54
179.38
Baglan [BAJ]
1
pass
1814½
pass
1910
+55
180.09
Briton Ferry East
pass
1815½
pass
1910¼
+54
181.20
Briton Ferry [BNF]
1
pass
1816½
pass
1911½
+55
181.38
Court Sart Jn
pass
1816½
pass
1911¼
+54
183.00
Neath [NTH]
1 2½
1
1819
1820
1818½
1820
1913½
1917½
+57
185.06
Skewen [SKE]
1
pass
1824
pass
1920½
+56
186.68
Llansamlet [LAS]
1
pass
1826½
pass
1922¼
+55
189.42
Landore Junction
pass
1831
pass
1925¼
+54
DM
DSM
190.23
Swansea Loop East
pass
1832
pass
1926¾
+54
190.67
Swansea [SWA]
2
1834
1834
1929
+55
DSM
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