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1B27 1748 London Paddington to Carmarthen
Departing on 3rd December 2025

operated by
Great Western Railway
10 coaches
London Paddington - Swansea
800033
800003
5 coaches
Swansea - Carmarthen
800003
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
1748
1748
1748½
3
0.41
Royal Oak Junction
pass
1749
pass
1749¾
3
2
1.28
Portobello Jn (London)
pass
1750½
pass
1751
1.68
Ladbroke Grove
pass
1751
pass
1751½
2
DM
2.55
Old Oak Common East
pass
1751½
pass
1752½
3.15
Old Oak Common West
pass
1752
pass
1753
+1
3.48
Friars Jn
pass
1752½
pass
1753¼
4.16
Acton Main Line [AML]
pass
1753
pass
1753¾
4.75
Acton West
pass
1753½
pass
1754¼
ML
ML
5.51
Ealing Broadway [EAL]
1
pass
1754
pass
1754½
6.41
West Ealing [WEA]
pass
1754½
pass
1755
6.49
West Ealing Junction
pass
1754½
pass
1755
7.23
Hanwell [HAN]
pass
1754½
pass
1755¼
8.57
Southall East Jn
pass
1755½
pass
1756
9.01
Southall [STL]
1
pass
1755½
pass
1756½
+1
9.65
Southall West Jn
pass
1756
pass
1756½
10.66
Hayes & Harlington [HAY]
1
pass
1756½
pass
1757½
+1
11.09
Heathrow Airport Jn
pass
1756½
pass
1757¼
ML
12.04
Stockley Junction
pass
1757
pass
1757¾
12.62
West Drayton East
pass
1757½
pass
1758
13.12
West Drayton [WDT]
1
pass
1757½
pass
1758½
+1
13.26
West Drayton Jcn
pass
1757½
pass
1758¾
+1
14.55
Iver [IVR]
1
pass
1758
pass
1759¼
+1
16.13
Langley [LNY]
1
pass
1759
pass
1800¼
+1
17.13
Dolphin Jn
pass
1759½
pass
1800½
+1
18.31
Slough [SLO]
2
pass
1800
pass
1801
+1
DD
19.06
Slough West
pass
1800½
pass
1801¼
+1
20.72
Burnham [BNM]
pass
1801½
pass
1802
22.34
Taplow [TAP]
1
pass
1802
pass
1802¾
23.53
Maidenhead East
pass
1802½
pass
1803¾
+1
24.14
Maidenhead [MAI]
1
pass
1803
pass
1804
+1
29.40
Ruscombe
pass
1806
pass
1806¼
30.76
Twyford [TWY]
1
1
pass
1806½
pass
1807
ML
31.57
Twyford West
pass
1807
pass
1807¼
35.10
Kennet Bridge Jn
pass
1809½
pass
1810¼
35.56
Reading Main Line East
pass
1810
pass
1811¼
+1
35.75
Reading [RDG]
9
1811
1813
1811
1813
1812½
1815¼
+2
DM
DM
36.12
Reading Main Line West
pass
1813½
pass
1816
+2
36.45
Reading High Level Jn
pass
1814
pass
1817
+3
ML
38.29
Tilehurst East Jn.
pass
1815
pass
1818
+3
38.47
Tilehurst [TLH]
1
pass
1815
pass
1818¼
+3
41.38
Pangbourne [PAN]
pass
1817
pass
1819½
+2
44.55
Goring & Streatley [GOR]
1
1
pass
1819
pass
1821¼
+2
ML
48.32
Cholsey [CHO]
1
pass
1821
pass
1823
+1
51.32
Moreton Cutting
pass
1823
pass
1824¼
+1
52.61
Didcot East Jn
pass
1824
pass
1824¾
+1
53.05
Didcot Parkway [DID]
1
pass
1824
pass
1825¼
+1
53.20
Didcot West End
pass
1824
No report
53.50
Foxhall Jn [XJF]
pass
1824½
pass
1825½
+1
55.14
Milton Junction
pass
1825
pass
1826
56.27
Steventon
pass
1826
pass
1826¾
60.17
Wantage Road
pass
1828
pass
1829¼
+1
63.75
Challow
pass
1830
pass
1831¼
+1
66.34
Uffington (Oxfordshire)
1
pass
1831
pass
1832½
+1
72.25
Bourton
pass
1834½
pass
1835¼
74.46
Swindon South Marston Jn
pass
1836
pass
1836½
75.58
Swindon Stratton Green
pass
1836½
pass
1837½
76.27
Highworth Jn
pass
1837
pass
1837½
76.59
Swindon East Loop
pass
1837
pass
1838¾
+1
77.18
Swindon [SWI]
4
1837
1840
1838
1840
1839½
1841
+1
DM
DM
82.67
Wootton Bassett Jn
pass
1844½
pass
1845½
+1
DM
DB
89.57
Little Somerford
pass
1848½
pass
1849¾
+1
94.16
Hullavington
1
pass
1851
pass
1852¼
+1
99.76
Badminton
pass
1854½
pass
1854¾
104.40
Chipping Sodbury
pass
1857
pass
1857½
107.09
Westerleigh Jn
1
pass
1858½
pass
1903
+4
111.57
Bristol Parkway [BPW]
Pathed as Class 80x on electric from here
2
1902
1904
1902½
1904
1909¼
1911½
+7
DB
DT
112.79
Patchway [PWY]
2
pass
1905½
pass
1912¾
+7
116.45
Pilning [PIL]
2
pass
1908
pass
1915¾
+7
118.03
Severn Tunnel East
pass
1909
pass
1916½
+7
122.31
Severn Tunnel West
pass
1912½
pass
1920
+7
123.41
Severn Tunnel Junction [STJ]
1
3
pass
1913½
pass
1921½
+8
DT
DM
125.66
Magor
pass
1915½
pass
1923¼
+7
130.72
Llanwern West Jn
pass
1919½
pass
1926¾
+7
131.63
East Usk Jn.
pass
1920½
pass
1927¼
+7
132.55
Maindee East Jn
pass
1921
pass
1928¼
+7
132.77
Maindee West Jn
pass
1921½
pass
1929
+7
133.31
Newport (South Wales) [NWP]
2
1923
1924
1922½
1924½
1930¼
1931½
+7
DM
DM
134.13
Gaer Jn
pass
1926
pass
1933
+7
DM
134.68
Ebbw Jn
pass
1927
pass
1933¾
+6
DM
DM
138.41
Marshfield
1
pass
1929½
pass
1936½
+7
142.42
Rumney River Bridge Jn
pass
1933
pass
1938¾
+5
143.01
Pengam Jn
pass
1933½
pass
1939¼
+5
143.46
Moorland Road Junction
pass
1934
pass
1940
+6
144.16
Long Dyke Jn
pass
1934½
pass
1941¼
+6
D
144.79
Cardiff East
pass
1936
pass
1942½
+6
DM
D
145.11
Cardiff Central [CDF]
Pathed as Class 80x on diesel from here
3
1936
1939
1936½
1939
1944
1946¾
+7
D
D
145.37
Cardiff West
pass
1940
No report
146.36
Leckwith North Jn
pass
1942
pass
1949½
+7
D
DM
149.14
St Fagans L C
pass
1944
pass
1952¼
+8
154.08
Miskin
pass
1948
pass
1956
+7
156.21
Pontyclun [PYC]
1
pass
1950
pass
1958
+8
156.57
Llantrisant [LTI]
pass
1950½
No report
158.53
Llanharan [LLR]
2
pass
1952
pass
2000
+8
161.41
Pencoed [PCD]
1
pass
1954
pass
2002
+7
164.42
Tremains
pass
1956½
pass
2003¾
+7
165.26
Bridgend [BGN]
1½
1
1958
1959
1957½
1959
2005½
2007
+8
DM
DM
169.46
Stormy
pass
2005
pass
2012
+7
171.21
Pyle [PYL]
1
pass
2006
pass
2013¼
+7
173.45
Margam Moors Jn.
pass
2007½
pass
2014¼
+6
DM
175.12
Margam East Jn
pass
2008½
pass
2015½
+7
176.00
Margam Middle Jn
pass
2009
pass
2015¾
+6
176.70
Port Talbot East
pass
2010
No report
177.39
Port Talbot Parkway [PTA]
1
2011
2012
2011
2012½
2017¾
2021
+8
179.38
Baglan [BAJ]
1
pass
2014½
pass
2023¾
+9
180.09
Briton Ferry East
pass
2015½
pass
2024¼
+8
181.20
Briton Ferry [BNF]
1
pass
2016½
pass
2025¼
+9
181.38
Court Sart Jn
pass
2016½
pass
2025¼
+8
183.00
Neath [NTH]
1
1
2019
2020
2018½
2020
2027
2028¼
+8
185.06
Skewen [SKE]
1
pass
2023
pass
2031¼
+8
186.68
Llansamlet [LAS]
1
pass
2025½
pass
2033
+7
189.42
Landore Junction
pass
2028½
pass
2035¾
+7
DM
DSM
190.23
Swansea Loop East
3
pass
2029½
pass
2037¼
+7
190.67
Swansea [SWA]
Pathed as Class 80x on diesel from here
Service divides here, reverses here
2
2034
2049
2034
2049
2039¼
2048½
DSM
USM
191.31
Swansea Loop East
pass
2050½
pass
2050¼
USM
DSL
192.04
Swansea Loop West
pass
2053
pass
2052
DSL
DM
194.56
Cockett West
pass
2056½
pass
2056¼
196.35
Gowerton [GWN]
1
pass
2059
pass
2058
199.78
Duffryn West
pass
2102
pass
2101
200.39
Llandeilo Jn
pass
2102½
pass
2101½
202.10
Llanelli [LLE]
1
2105
2106
2105
2106½
2104¼
2105
-1
DD
206.05
Pembrey & Burry Port [PBY]
2112
2113
2112
2113½
No report
210.64
Kidwelly Junction
pass
2118½
No report
211.22
Kidwelly [KWL]
2120
2121
2119½
2121
No report
215.41
Ferryside [FYS]
1 ½
2127
2128
2126½
2128
No report
222.00
Carmarthen Jn [XCI]
pass
2138½
pass
2139
DD
222.45
Carmarthen [CMN]
2
2140
2140
2142
+2
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