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1B27 1748 London Paddington to Carmarthen
Departing on 15th December 2025

operated by
Great Western Railway
10 coaches
London Paddington - Swansea
800021
800030
5 coaches
Swansea - Carmarthen
800030
GBTT
WTT
RTTRealtime
Route
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
London Paddington [PAD]
Pathed as Class 80x on electric at 125mph
10
1748
1748
1747½
3
Royal Oak Junction
pass
1749
pass
1749
3
2
Portobello Jn (London)
pass
1750½
pass
1750¼
Ladbroke Grove
pass
1751
pass
1751
2
DM
Old Oak Common East
pass
1751½
pass
1752
Old Oak Common West
pass
1752
pass
1752½
Friars Jn
pass
1752½
pass
1752¾
Acton Main Line [AML]
pass
1753
pass
1753¼
Acton West
pass
1753½
pass
1753¾
ML
ML
Ealing Broadway [EAL]
1
pass
1754
pass
1754
West Ealing [WEA]
pass
1754½
pass
1754½
West Ealing Junction
pass
1754½
pass
1754½
Hanwell [HAN]
pass
1754½
pass
1755
Southall East Jn
pass
1755½
pass
1755¾
Southall [STL]
1
pass
1755½
pass
1756¼
Southall West Jn
pass
1756
pass
1756¼
Hayes & Harlington [HAY]
1
pass
1756½
pass
1757
Heathrow Airport Jn
pass
1756½
pass
1756¾
ML
Stockley Junction
pass
1757
pass
1757¼
West Drayton East
pass
1757½
pass
1757½
West Drayton [WDT]
1
pass
1757½
pass
1758
West Drayton Jcn
pass
1757½
pass
1758¼
Iver [IVR]
1
pass
1758
pass
1758¾
Langley [LNY]
1
pass
1759
pass
1759¾
Dolphin Jn
pass
1759½
pass
1800
Slough [SLO]
2
pass
1800
pass
1800½
ML
Slough West
pass
1800½
pass
1800¾
Burnham [BNM]
pass
1801½
pass
1801½
Taplow [TAP]
1
pass
1802
pass
1802¼
Maidenhead East
pass
1802½
pass
1803¼
Maidenhead [MAI]
1
pass
1803
pass
1803½
Ruscombe
pass
1806
pass
1805¾
Twyford [TWY]
1
1
pass
1806½
pass
1806½
ML
Twyford West
pass
1807
pass
1806¾
Kennet Bridge Jn
pass
1809½
pass
1809¾
Reading Main Line East
pass
1810
pass
1810¾
Reading [RDG]
9
1811
1813
1811
1813
1812
1814
+1
DM
DM
Reading Main Line West
pass
1813½
pass
1814¾
+1
Reading High Level Jn
pass
1814
pass
1815¾
+1
ML
Tilehurst East Jn.
pass
1815
pass
1816¾
+1
Tilehurst [TLH]
1
pass
1815
pass
1817
+1
Pangbourne [PAN]
pass
1817
pass
1818¼
+1
Goring & Streatley [GOR]
1
1
pass
1819
pass
1820
+1
ML
Cholsey [CHO]
1
pass
1821
pass
1821¾
Moreton Cutting
pass
1823
pass
1823
Didcot East Jn
pass
1824
pass
1823½
Didcot Parkway [DID]
1
pass
1824
pass
1824
Didcot West End
pass
1824
No report
Foxhall Jn [XJF]
pass
1824½
pass
1824¼
Milton Junction
pass
1825
pass
1824¾
Steventon
pass
1826
pass
1825½
Wantage Road
pass
1828
pass
1828
Challow
pass
1830
pass
1830¼
Uffington (Oxfordshire)
1
pass
1831
pass
1831¼
Bourton
pass
1834½
pass
1834
Swindon South Marston Jn
pass
1836
pass
1836
Swindon Stratton Green
pass
1836½
pass
1838
+1
Highworth Jn
pass
1837
pass
1839¼
+2
Swindon East Loop
pass
1837
pass
1840¼
+3
Swindon [SWI]
4
1837
1840
1838
1840
1841½
1843
+3
DM
DM
Wootton Bassett Jn
pass
1844½
pass
1847¾
+3
DM
DB
Little Somerford
pass
1848½
pass
1851¾
+3
Hullavington
1
pass
1851
pass
1854¼
+3
Badminton
pass
1854½
pass
1856¾
+2
Chipping Sodbury
pass
1857
pass
1859½
+2
Westerleigh Jn
1
pass
1858½
pass
1901¼
+2
Bristol Parkway [BPW]
Pathed as Class 80x on electric from here
2
1902
1904
1902½
1904
1905½
1907¼
+3
DB
DT
Patchway [PWY]
2
pass
1905½
pass
1908¾
+3
Pilning [PIL]
2
pass
1908
pass
1911¾
+3
Severn Tunnel East
pass
1909
pass
1913
+4
Severn Tunnel West
pass
1912½
pass
1916½
+4
Severn Tunnel Junction [STJ]
1
3
pass
1913½
pass
1918
+4
DT
DM
Magor
pass
1915½
pass
1919½
+4
Llanwern West Jn
pass
1919½
pass
1923¼
+3
East Usk Jn.
pass
1920
pass
1923¾
+3
Maindee East Jn
pass
1921
pass
1924¾
+3
ML
Maindee West Jn
pass
1921½
pass
1925¾
+4
Newport (South Wales) [NWP]
2
1923
1924
1922½
1924½
1927
1952¾
+28
DM
DR
Gaer Jn
pass
1926
pass
1954¾
+28
DR
DR
Ebbw Jn
pass
1927
pass
1956¼
+29
DR
Marshfield
pass
1929½
pass
1959¾
+30
Rumney River Bridge Jn
pass
1932½
pass
2004
+31
Pengam Jn
pass
1932½
pass
2004½
+32
Moorland Road Junction
1
pass
1933
pass
2006¾
+33
RL
Long Dyke Jn
pass
1934½
pass
2008¼
+33
D
Cardiff East
pass
1936
pass
2009½
+33
DR
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
4
1937
1939
1937
1939
2010¾
2015
+36
E
D
Cardiff West
pass
1940
No report
Leckwith North Jn
pass
1942
pass
2018
+36
D
DM
St Fagans L C
pass
1944
pass
2020¼
+36
Miskin
pass
1948
pass
2024¼
+36
Pontyclun [PYC]
1
pass
1950
pass
2026
+36
Llantrisant [LTI]
pass
1950½
No report
Llanharan [LLR]
2
pass
1952
pass
2028¼
+36
Pencoed [PCD]
1
pass
1954
pass
2030
+36
Tremains
pass
1956½
pass
2032
+35
Bridgend [BGN]
1½
1
1958
1959
1957½
1959
2033¾
2035¾
+36
DM
DM
Stormy
pass
2005
pass
2040¾
+35
Pyle [PYL]
1
pass
2006
pass
2042
+36
Margam Moors Jn.
pass
2007½
pass
2043¼
+35
DM
Margam East Jn
pass
2008½
pass
2044½
+36
Margam Middle Jn
pass
2009
pass
2044¾
+35
Port Talbot East
pass
2010
No report
Port Talbot Parkway [PTA]
1
2011
2012
2011
2012½
2046¾
2048
+35
Baglan [BAJ]
1
pass
2014½
pass
2051
+36
Briton Ferry East
pass
2015½
pass
2051¼
+36
Briton Ferry [BNF]
1
pass
2016½
pass
2052½
+36
Court Sart Jn
pass
2016½
pass
2052½
+36
Neath [NTH]
1
1
2019
2020
2018½
2020
2054¼
2056¼
+36
Skewen [SKE]
1
pass
2023
pass
2059¾
+36
Llansamlet [LAS]
1
pass
2025½
pass
2101¾
+36
Landore Junction
pass
2028½
pass
2104½
+36
DM
DSM
Swansea Loop East
3
pass
2029½
pass
2106
+36
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service divides here, reverses here
3
2034
2048
2034
2048
2108
2114¾
+26
DSM
USM
Swansea Loop East
pass
2049½
pass
2116¾
+27
USM
DSL
Swansea Loop West
pass
2052
pass
2118½
+26
DSL
DM
Cockett West
pass
2055½
pass
2122½
+27
Gowerton [GWN]
1
pass
2058
pass
2124
+26
Duffryn West
pass
2101
pass
2126¾
+25
Llandeilo Jn
pass
2101½
pass
2127¼
+25
Llanelli [LLE]
1
2104
2105
2104
2105½
2129¾
2131
+25
DD
Pembrey & Burry Port [PBY]
2111
2112
2111
2112½
No report
Kidwelly Junction
pass
2117½
No report
Kidwelly [KWL]
2
2119
2120
2118½
2120
No report
Bertwyn Level Crossing
pass
2122½
No report
Ferryside [FYS]
1
2126
2127
2125½
2127
No report
Carmarthen Jn [XCI]
pass
2137
pass
2158
+21
DD
Carmarthen [CMN]
2
2139
2139
2201
+22
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