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1L23 1454 Cardiff Central to London Paddington
Departing on 28th November 2025

operated by
Great Western Railway
8 coaches
387158
387142
GBTT
WTT
RTTRealtime
Route
Mi.Ch
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
0.00
Cardiff Central [CDF]
Pathed as Class 80x on electric at 125mph
forms from 5L23 from Cardiff Central
2
1454
1454
1453¾
B
0.12
Cardiff East
pass
1455
pass
1455
0.75
Long Dyke Jn
pass
1456½
pass
1456¼
B
UM
1.45
Moorland Road Junction
pass
1457
pass
1457
2.10
Pengam Jn
pass
1457½
pass
1457¼
2.49
Rumney River Bridge Jn
pass
1457½
pass
1457½
6.50
Marshfield
pass
1500½
pass
1500
10.23
Ebbw Jn
pass
1503
pass
1502¾
UM
UM
10.78
Gaer Jn
pass
1504
pass
1503¼
UM
11.60
Newport (South Wales) [NWP]
3
1506
1507
1505½
1507
1505½
1509
+2
UM
UM
12.14
Maindee West Jn
pass
1508
pass
1510½
+2
12.36
Maindee East Jn
pass
1508½
pass
1510¾
+2
13.28
East Usk Jn.
pass
1509
pass
1511¾
+2
14.19
Llanwern West Jn
pass
1510
pass
1512¾
+2
19.25
Magor
pass
1514
pass
1515½
+1
21.50
Severn Tunnel Junction [STJ]
4
pass
1515½
pass
1518
+2
UM
UT
22.60
Severn Tunnel West
pass
1516½
pass
1518¾
+2
27.08
Severn Tunnel East
pass
1520
pass
1522¼
+2
28.46
Pilning [PIL]
1
1
pass
1521
pass
1523½
+2
32.12
Patchway [PWY]
1
pass
1524½
pass
1530¾
+6
33.34
Bristol Parkway [BPW]
3
1526
1527
1526
1527½
1532¾
1535½
+8
UT
UB
38.02
Westerleigh Jn
pass
1531
pass
1539½
+8
40.51
Chipping Sodbury
pass
1532½
pass
1541
+8
45.15
Badminton
pass
1534½
pass
1543½
+8
50.75
Hullavington
pass
1537½
pass
1546¼
+8
55.34
Little Somerford
pass
1540
pass
1549¾
+9
62.24
Wootton Bassett Jn
1
pass
1544
pass
1552¾
+8
UB
UM
67.73
Swindon [SWI]
3
1550
1551
1549½
1551½
1600½
1602½
+11
UR
UM
68.64
Highworth Jn
pass
1552½
pass
1604¾
+12
69.33
Swindon Stratton Green
pass
1553
pass
1605¼
+12
70.45
Swindon South Marston Jn
pass
1553½
pass
1605½
+12
72.66
Bourton
pass
1554½
pass
1607
+12
78.57
Uffington (Oxfordshire)
pass
1558
pass
1610¼
+12
81.16
Challow
pass
1559½
pass
1611½
+12
84.74
Wantage Road
1
pass
1601
pass
1614¼
+13
88.64
Steventon
pass
1603½
pass
1615½
+12
89.77
Milton Junction
pass
1604
pass
1616½
+12
91.41
Foxhall Jn [XJF]
pass
1605
pass
1617½
+12
91.71
Didcot West End
pass
1605½
No report
92.06
Didcot Parkway [DID]
2
pass
1605½
pass
1618¼
+12
92.30
Didcot East Jn
pass
1605½
pass
1618½
+12
93.59
Moreton Cutting
pass
1606½
pass
1618¾
+12
96.59
Cholsey [CHO]
2
pass
1607½
pass
1620¼
+12
100.36
Goring & Streatley [GOR]
1
2
pass
1609½
pass
1622¼
+12
ML
103.53
Pangbourne [PAN]
pass
1611½
pass
1624¼
+12
106.44
Tilehurst [TLH]
2
pass
1613½
pass
1625½
+11
106.62
Tilehurst East Jn.
pass
1614
pass
1625¾
+12
108.46
Reading High Level Jn
pass
1615
pass
1627¼
+12
ML
108.79
Reading Main Line West
pass
1615½
pass
1627¾
+12
109.16
Reading [RDG]
10
1616
1618
1616½
1618½
1628½
1631
+12
UM
UM
109.35
Reading Main Line East
pass
1619
pass
1631¾
+12
110.01
Kennet Bridge Jn
pass
1619½
pass
1632½
+13
113.34
Twyford West
pass
1622
pass
1634¾
+12
114.15
Twyford [TWY]
2
pass
1622½
pass
1635½
+13
ML
115.51
Ruscombe
pass
1623
pass
1635¾
+12
120.77
Maidenhead [MAI]
2
pass
1626
pass
1639¼
+13
121.38
Maidenhead East
pass
1626½
pass
1639¼
+13
122.57
Taplow [TAP]
2
pass
1627
pass
1640
+13
124.19
Burnham [BNM]
pass
1627½
pass
1640½
+12
126.05
Slough West
pass
1628½
pass
1642½
+13
126.60
Slough [SLO]
3
pass
1629
pass
1643½
+14
127.78
Dolphin Jn
pass
1629½
pass
1644¼
+14
128.78
Langley [LNY]
2
pass
1630
pass
1645
+15
130.36
Iver [IVR]
2
pass
1631
pass
1645¾
+15
131.65
West Drayton Jcn
pass
1631½
pass
1646¼
+15
131.79
West Drayton [WDT]
2
pass
1631½
pass
1646¾
+15
132.29
West Drayton East
pass
1631½
pass
1646¾
+15
133.07
Stockley Junction
pass
1632
pass
1647
+15
ML
ML
134.02
Heathrow Airport Jn
pass
1632½
pass
1647½
+15
134.25
Hayes & Harlington [HAY]
2
pass
1632½
pass
1647¾
+15
135.26
Southall West Jn
pass
1633
pass
1648¼
+15
136.10
Southall [STL]
2
pass
1633½
pass
1648¼
+14
ML
136.34
Southall East Jn
pass
1633½
pass
1648½
+15
137.68
Hanwell [HAN]
1
pass
1634
pass
1649½
+15
138.42
West Ealing Junction
pass
1634½
pass
1650
+15
138.50
West Ealing [WEA]
pass
1634½
pass
1650¼
+15
139.40
Ealing Broadway [EAL]
2
pass
1634½
pass
1650¾
+16
140.16
Acton West
1
pass
1635
pass
1651
+16
ML
ML
140.75
Acton Main Line [AML]
2
pass
1636
pass
1651¾
+15
141.43
Friars Jn
pass
1636½
No report
141.76
Old Oak Common West
pass
1637
pass
1652½
+15
142.36
Old Oak Common East
pass
1637½
pass
1653¼
+15
143.23
Ladbroke Grove
pass
1638½
pass
1654¼
+15
UM
3
143.63
Portobello Jn (London)
pass
1639
pass
1655
+16
144.50
Royal Oak Junction
pass
1640
pass
1656¾
+16
3
4
145.11
London Paddington [PAD]
forms 1B25 to Swansea
12
1641
1641
1700
+19
4
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