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1B21 1548 London Paddington to Port Talbot Parkway
Departing on 26th January 2026

operated by
Great Western Railway
GBTT
WTT
Route
Location
Pl
Arr
Dep
Arr
Dep
Path
Line
London Paddington [PAD]
8
1548
1548
3
Royal Oak Junction
pass
1549
2
Portobello Jn (London)
pass
1550½
2
Ladbroke Grove
pass
1551
2
ML
Acton West
pass
1553½
ML
ML
Southall [STL]
1
pass
1555½
ML
Heathrow Airport Jn
pass
1556½
ML
Slough [SLO]
2
pass
1600
ML
Maidenhead [MAI]
1
pass
1603
ML
Twyford [TWY]
1
1
pass
1606½
ML
Kennet Bridge Jn
pass
1609½
DML
Reading [RDG]
9
1611
1613
1611
1613
ML
Reading High Level Jn
pass
1614
ML
Goring & Streatley [GOR]
1
pass
1619
ML
Didcot Parkway [DID]
1
pass
1624
Wantage Road
pass
1628
Challow
pass
1630
Uffington (Oxfordshire)
1 ½
pass
1631
Swindon [SWI]
4
1638
1640
1638½
1640½
Wootton Bassett Jn
pass
1645
Hullavington
1
DGL
pass
1651½
Westerleigh Jn
½
pass
1659
Bristol Parkway [BPW]
2
1702
1704
1702½
1704½
Patchway [PWY]
2
pass
1706
Pilning [PIL]
2
pass
1708½
Severn Tunnel East
pass
1709½
Severn Tunnel West
pass
1713
Severn Tunnel Junction [STJ]
3
pass
1714
ML
Llanwern West Jn
pass
1719
Maindee East Jn
pass
1720½
ML
Maindee West Jn
pass
1721
Newport (South Wales) [NWP]
2
1722
1724
1722
1724
DM
Gaer Jn
pass
1725½
ML
Ebbw Jn
pass
1726½
Marshfield
1
pass
1729
Moorland Road Junction
1
pass
1733½
RL
Long Dyke Jn
pass
1735
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1737
1739
1737½
1739½
D
Leckwith North Jn
pass
1742½
Pontyclun [PYC]
pass
1750½
Bridgend [BGN]
1
1758
1800
1758
1800
Stormy
½
pass
1804½
Margam Moors Jn.
pass
1807½
Margam East Jn
5
pass
1808½
Port Talbot Parkway [PTA]
1
1816
1816
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