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1B27 1748 London Paddington to Carmarthen
Departing on 9th January 2026

operated by
Great Western Railway
10 coaches
London Paddington - Swansea
800033
800025
5 coaches
Swansea - Carmarthen
800025
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
12
1748
1748
1747¾
4
Royal Oak Junction
pass
1749
pass
1749¼
4
4
Portobello Jn (London)
pass
1750½
pass
1750¼
4
3
Ladbroke Grove
pass
1751
pass
1751½
3
DM
Old Oak Common East
pass
1751½
pass
1752½
+1
Old Oak Common West
pass
1752
pass
1753
+1
Friars Jn
pass
1752½
pass
1753¼
Acton Main Line [AML]
pass
1753
pass
1753¾
+1
Acton West
pass
1753½
pass
1754¼
ML
ML
Ealing Broadway [EAL]
1
pass
1754
pass
1754¾
West Ealing [WEA]
pass
1754½
pass
1755
West Ealing Junction
pass
1754½
pass
1755
Hanwell [HAN]
pass
1754½
pass
1755½
Southall East Jn
pass
1755½
pass
1756¼
+1
Southall [STL]
1
pass
1755½
pass
1756¾
+1
Southall West Jn
pass
1756
pass
1756¾
Hayes & Harlington [HAY]
1
pass
1756½
pass
1757½
+1
Heathrow Airport Jn
pass
1756½
pass
1757¼
ML
Stockley Junction
pass
1757
pass
1757¾
West Drayton East
pass
1757½
pass
1758¼
+1
West Drayton [WDT]
1
pass
1757½
pass
1758¾
+1
West Drayton Jcn
pass
1757½
pass
1758¾
+1
Iver [IVR]
1
pass
1758
pass
1759¼
+1
Langley [LNY]
1
pass
1759
pass
1800¼
+1
Dolphin Jn
pass
1759½
pass
1800½
+1
Slough [SLO]
2
pass
1800
pass
1801½
+1
ML
Slough West
pass
1800½
pass
1801¾
+1
Burnham [BNM]
pass
1801½
pass
1802¾
+1
Taplow [TAP]
1
pass
1802
pass
1803¾
+1
Maidenhead East
pass
1802½
pass
1804½
+1
Maidenhead [MAI]
1
pass
1803
pass
1805
+2
Ruscombe
pass
1806
pass
1807
+1
Twyford [TWY]
1
1
pass
1806½
pass
1807¾
+1
ML
Twyford West
pass
1807
pass
1808¼
+1
Kennet Bridge Jn
pass
1809½
pass
1810½
+1
Reading Main Line East
pass
1810
pass
1811¼
+1
Reading [RDG]
9
1811
1813
1811
1813
1812¼
1813½
DM
DM
Reading Main Line West
pass
1813½
pass
1814¼
Reading High Level Jn
pass
1814
pass
1815¼
+1
ML
Tilehurst East Jn.
pass
1815
pass
1816¼
+1
Tilehurst [TLH]
1
pass
1815
pass
1816¼
+1
Pangbourne [PAN]
pass
1817
pass
1817½
Goring & Streatley [GOR]
1
1
pass
1819
pass
1819¼
ML
Cholsey [CHO]
1
pass
1821
pass
1821
Moreton Cutting
pass
1823
pass
1822¼
Didcot East Jn
pass
1824
pass
1822¾
Didcot Parkway [DID]
1
pass
1824
pass
1823¼
Didcot West End
pass
1824
No report
Foxhall Jn [XJF]
pass
1824½
pass
1823½
Milton Junction
pass
1825
pass
1824
-1
Steventon
pass
1826
pass
1824¾
Wantage Road
pass
1828
pass
1829¾
+1
Challow
pass
1830
pass
1832½
+2
Uffington (Oxfordshire)
1
pass
1831
pass
1833¾
+2
Bourton
pass
1834½
pass
1836½
+2
Swindon South Marston Jn
pass
1836
pass
1837¾
+2
Swindon Stratton Green
pass
1836½
pass
1838½
+2
Highworth Jn
pass
1837
pass
1838¾
+1
Swindon East Loop
pass
1837
pass
1840
+2
Swindon [SWI]
4
1837
1840
1838
1840
1840¾
1841¾
+1
DM
DM
Rushey Platt
pass
1841½
pass
1843¼
+2
Wootton Bassett Jn
pass
1844½
pass
1846½
+2
DM
DB
Little Somerford
pass
1848½
pass
1850¾
+2
Hullavington
1
pass
1851
pass
1853
+2
Badminton
pass
1854½
pass
1855½
+1
Chipping Sodbury
pass
1857
pass
1858¼
+1
Westerleigh Jn
1
pass
1858½
pass
1900
+1
Bristol Parkway [BPW]
Pathed as Class 80x on electric from here
2
1902
1904
1902½
1904
1904
1905¾
+1
DB
DT
Patchway [PWY]
2
pass
1905½
pass
1907¼
+1
Pilning [PIL]
2
pass
1908
pass
1910¼
+2
Severn Tunnel East
pass
1909
pass
1911¼
+2
Severn Tunnel West
pass
1912½
pass
1914½
+2
Severn Tunnel Junction [STJ]
1
3
pass
1913½
pass
1915¾
+2
DT
DM
Magor
pass
1915½
pass
1917¼
+2
Llanwern West Jn
pass
1919½
pass
1921
+1
East Usk Jn.
pass
1920
pass
1921¾
+1
Maindee East Jn
pass
1921
pass
1922¾
+1
ML
Maindee West Jn
pass
1921½
pass
1923½
+2
Newport (South Wales) [NWP]
2
1923
1924
1922½
1924½
1924¾
1926¼
+1
DM
DM
Gaer Jn
pass
1926
pass
1927¾
+1
DM
Ebbw Jn
pass
1927
pass
1928¾
+1
DM
DM
Marshfield
pass
1929½
pass
1931¼
+1
Rumney River Bridge Jn
pass
1932½
pass
1933¾
+1
Pengam Jn
pass
1932½
pass
1934¼
+1
Moorland Road Junction
1
pass
1933
pass
1935
+2
DM
DR
Long Dyke Jn
pass
1934½
pass
1935¾
+1
D
Cardiff East
pass
1936
pass
1936¾
DR
E
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1937
1939
1937
1939
1938¼
1939¾
E
D
Cardiff West
pass
1940
No report
Leckwith North Jn
pass
1942
pass
1942¾
D
DM
St Fagans L C
pass
1944
pass
1945
Miskin
pass
1948
pass
1949
Pontyclun [PYC]
1
pass
1950
pass
1951
+1
Llantrisant [LTI]
pass
1950½
No report
Llanharan [LLR]
2
pass
1952
pass
1953
+1
Pencoed [PCD]
1
pass
1954
pass
1955
+1
Tremains
pass
1956½
pass
1957
Bridgend [BGN]
1½
1
1958
1959
1957½
1959
1958½
1959½
DM
DM
Stormy
pass
2005
pass
2004½
Pyle [PYL]
1
pass
2006
pass
2005¾
Margam Moors Jn.
pass
2007½
pass
2006¾
DM
Margam East Jn
pass
2008½
pass
2008¼
Margam Middle Jn
pass
2009
pass
2008¼
Port Talbot East
pass
2010
No report
Port Talbot Parkway [PTA]
1
2011
2012
2011
2012½
2010¼
2011½
Baglan [BAJ]
1
pass
2014½
pass
2014½
Briton Ferry East
pass
2015½
pass
2014¾
Briton Ferry [BNF]
1
pass
2016½
pass
2016
Court Sart Jn
pass
2016½
pass
2015¾
Neath [NTH]
1
1
2019
2020
2018½
2020
2017½
2019½
Skewen [SKE]
1
pass
2023
pass
2022½
Llansamlet [LAS]
1
pass
2025½
pass
2024½
Landore Junction
pass
2028½
pass
2027
-1
DM
DSM
Swansea Loop East
3
pass
2029½
pass
2028¼
-1
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service divides here, reverses here
2
2034
2048
2034
2048
2030¾
2047½
DSM
USM
Swansea Loop East
pass
2049½
pass
2049¼
USM
DSL
Swansea Loop West
pass
2052
pass
2051
DSL
DM
Cockett West
pass
2055½
pass
2055¼
Gowerton [GWN]
1
pass
2058
pass
2057
Duffryn West
pass
2101
pass
2059¾
-1
Llandeilo Jn
pass
2101½
pass
2100¼
-1
Llanelli [LLE]
1
2104
2105
2104
2105½
2102¼
2104
-1
DD
Pembrey & Burry Port [PBY]
2111
2112
2111
2112½
N/R
2112
Kidwelly Junction
pass
2117½
No report
Kidwelly [KWL]
2
2119
2120
2118½
2120
2118
2120
Bertwyn Level Crossing
pass
2122½
No report
Ferryside [FYS]
1
2126
2127
2125½
2127
2125
2127
Carmarthen Jn [XCI]
pass
2137
pass
2135
-2
DD
Carmarthen [CMN]
2
2139
2139
2137
-2
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