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1L36 2023 Swansea to London Paddington
Departing on 17th December 2025

operated by
Great Western Railway
5 coaches
800016
GBTT
WTT
RTTRealtime
Route
Location
Pl
Arr
Dep
Arr
Dep
Arr
Dep
Dly
Path
Line
Swansea [SWA]
Pathed as Class 80x on diesel at 125mph
forms from 1B24 from London Paddington
3
2023
2023
2023½
USM
Swansea Loop East
pass
2024½
pass
2025¼
Landore Junction
pass
2025½
pass
2026¾
+1
USM
UM
Llansamlet [LAS]
2
pass
2028½
pass
2029¾
+1
Skewen [SKE]
2
pass
2030½
pass
2031¾
+1
Neath [NTH]
2
2034
2035
2033½
2035
2034¼
2035½
Briton Ferry West Jn
pass
2037½
pass
2038¼
Port Talbot Parkway [PTA]
2
2041
2042
2041
2042½
2042
2042¾
Port Talbot East
pass
2043½
No report
Margam Middle Jn
pass
2044½
pass
2044
Margam East Jn
pass
2045½
pass
2045¾
Margam Moors Jn.
½
pass
2046½
pass
2047¼
UM
Pyle [PYL]
2
pass
2048½
pass
2048¾
Stormy
pass
2050
pass
2050¾
At platform
Bridgend [BGN]
2
2054
2055
2054
2055½
2054¾
2055¾
UM
UM
Tremains
pass
2056½
pass
2058
+1
Pencoed Up Passenger Loop
pass
2059
No report
Pencoed [PCD]
2
pass
2059½
pass
2100
Llanharan [LLR]
1
pass
2101½
pass
2102
Llantrisant [LTI]
pass
2103
No report
Pontyclun [PYC]
1
2
pass
2103½
pass
2104¼
Miskin
pass
2105½
pass
2106¼
St Fagans L C
pass
2110
pass
2110¼
Leckwith North Jn
1
pass
2112½
pass
2112½
UM
C
Cardiff West
pass
2115½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
1
2116
2120
2117
2120
2115¾
2119¾
C
B
Cardiff East
pass
2120½
pass
2121
Long Dyke Jn
pass
2122
pass
2122
B
UM
Moorland Road Junction
pass
2122½
pass
2122¾
Pengam Jn
pass
2123
pass
2123
Rumney River Bridge Jn
pass
2123
pass
2123¼
Marshfield
pass
2126
pass
2125¾
Ebbw Jn
pass
2128½
pass
2128½
UM
UM
Gaer Jn
pass
2129
pass
2129
UM
Newport (South Wales) [NWP]
3
2131
2133
2131
2133
2131¼
2132¾
UM
UM
Maindee West Jn
pass
2134
pass
2134
Maindee East Jn
pass
2134½
pass
2134½
ML
East Usk Jn.
pass
2135½
pass
2135¼
Llanwern West Jn
pass
2136½
pass
2136¼
Magor
pass
2140
pass
2139¼
Severn Tunnel Junction [STJ]
4
pass
2141½
pass
2141¾
UM
UT
Severn Tunnel West
pass
2142½
pass
2142½
Severn Tunnel East
pass
2146
pass
2146¼
Pilning [PIL]
1
1
pass
2147
pass
2147¼
Patchway [PWY]
1
pass
2150½
pass
2150¾
Bristol Parkway [BPW]
1
3
2152
2154
2152
2154
2153¼
2153¾
UT
UB
Westerleigh Jn
pass
2158½
pass
2157¾
Chipping Sodbury
pass
2200
pass
2159¼
Badminton
pass
2202
pass
2201¾
Hullavington
pass
2205
pass
2204¼
Little Somerford
pass
2207½
pass
2207¼
Wootton Bassett Jn
1
pass
2211½
pass
2210½
-1
UB
UM
Swindon [SWI]
3
2217
2219
2217
2219
2216
2218½
UR
UM
Highworth Jn
pass
2220
pass
2220¼
Swindon Stratton Green
pass
2220½
pass
2220¾
Swindon South Marston Jn
pass
2221
pass
2221
Bourton
pass
2222
pass
2222¼
Uffington (Oxfordshire)
pass
2225½
pass
2225¼
Challow
pass
2227
pass
2226¼
Wantage Road
1
pass
2228½
pass
2228¾
Steventon
pass
2231
pass
2230
Milton Junction
pass
2231½
pass
2230¾
Foxhall Jn [XJF]
pass
2232½
pass
2232½
Didcot West End
pass
2233
No report
Didcot Parkway [DID]
2
pass
2233
pass
2234
+1
Didcot East Jn
pass
2233
pass
2235
+2
Moreton Cutting
pass
2234
pass
2236½
+2
Cholsey [CHO]
2
pass
2235
pass
2238½
+3
Goring & Streatley [GOR]
2
pass
2237
pass
2240¼
+3
ML
Pangbourne [PAN]
pass
2239
pass
2242
+3
Tilehurst [TLH]
2
pass
2240½
pass
2243
+2
Tilehurst East Jn.
pass
2240½
pass
2243¼
+2
Reading High Level Jn
1
pass
2241½
pass
2244¾
+3
ML
Reading Main Line West
pass
2243
pass
2245¼
+2
Reading [RDG]
10
2243
2246
2244
2246
2246
2247
+1
UM
UM
Reading Main Line East
pass
2246½
pass
2247¾
+1
Kennet Bridge Jn
pass
2247
pass
2248½
+1
Twyford West
pass
2249½
pass
2250½
+1
Twyford [TWY]
2
pass
2250
pass
2251¼
+1
ML
Ruscombe
pass
2250½
pass
2251½
Maidenhead [MAI]
2
pass
2253½
pass
2254½
+1
Maidenhead East
pass
2254
pass
2254½
Taplow [TAP]
2
pass
2254½
pass
2255¼
Burnham [BNM]
pass
2255
pass
2255½
Slough West
pass
2256
pass
2256¾
Slough [SLO]
2
3
pass
2256½
pass
2257½
+1
Dolphin Jn
pass
2257½
pass
2257¾
Langley [LNY]
2
pass
2258½
pass
2258¼
Iver [IVR]
2
pass
2259½
pass
2259
West Drayton Jcn
pass
2300½
pass
2259½
West Drayton [WDT]
2
pass
2300½
pass
2259¾
West Drayton East
pass
2301
pass
2259¾
Stockley Junction
pass
2301½
pass
2300
-1
ML
ML
Heathrow Airport Jn
pass
2302
pass
2300½
-1
Hayes & Harlington [HAY]
2
pass
2302
pass
2300¾
-1
Southall West Jn
pass
2302½
pass
2301
-1
Southall [STL]
2
pass
2303
pass
2301
-1
ML
Southall East Jn
pass
2303
pass
2301¼
-1
Hanwell [HAN]
1
pass
2303½
pass
2302¼
-1
West Ealing Junction
pass
2304
pass
2302½
-1
West Ealing [WEA]
pass
2304
pass
2302¾
Ealing Broadway [EAL]
2
pass
2304
pass
2303½
Acton West
1
pass
2304½
pass
2303¾
ML
ML
Acton Main Line [AML]
2
pass
2305½
pass
2304¼
Friars Jn
pass
2306
No report
Old Oak Common West
pass
2306½
pass
2305
-1
Old Oak Common East
pass
2307
pass
2305½
-1
Ladbroke Grove
pass
2308
pass
2306½
-1
UM
3
Portobello Jn (London)
½
pass
2308½
pass
2307
-1
Royal Oak Junction
pass
2310
pass
2308¼
-1
London Paddington [PAD]
8
2311
2311
2310
3
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