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1L36 2023 Swansea to London Paddington
Departing on 15th December 2025

operated by
Great Western Railway
9 coaches
800311
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
2
2023
2023
2022¾
USM
Swansea Loop East
pass
2024½
pass
2024¼
Landore Junction
pass
2025½
pass
2025½
USM
UM
Llansamlet [LAS]
2
pass
2028½
pass
2028¾
Skewen [SKE]
2
pass
2030½
pass
2031¼
Neath [NTH]
2
2034
2035
2033½
2035
2034
2035¼
Briton Ferry West Jn
pass
2037½
pass
2038¼
Port Talbot Parkway [PTA]
2
2041
2042
2041
2042½
2042
2043
Port Talbot East
pass
2043½
No report
Margam Middle Jn
pass
2044½
pass
2044¼
Margam East Jn
pass
2045½
pass
2046
Margam Moors Jn.
½
pass
2046½
pass
2047½
+1
UM
Pyle [PYL]
2
pass
2048½
pass
2049¼
Stormy
pass
2050
pass
2051½
+1
At platform
Bridgend [BGN]
2
2054
2055
2054
2055½
2055¼
2056¼
UM
UM
Tremains
pass
2056½
pass
2058½
+2
Pencoed Up Passenger Loop
pass
2059
No report
Pencoed [PCD]
2
pass
2059½
pass
2101
+1
Llanharan [LLR]
1
pass
2101½
pass
2104¾
+3
Llantrisant [LTI]
pass
2103
No report
Pontyclun [PYC]
1
2
pass
2103½
pass
2107
+3
Miskin
pass
2105½
pass
2109
+3
St Fagans L C
pass
2110
pass
2113
+3
Leckwith North Jn
1
pass
2112½
pass
2116¼
+3
UM
C
Cardiff West
pass
2115½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
3
2116
2120
2117
2120
2121½
2127¼
+7
C
D
Cardiff East
pass
2120½
pass
2128½
+7
D
UR
Long Dyke Jn
pass
2122
pass
2129½
+7
ML
Moorland Road Junction
pass
2122½
pass
2130¼
+8
Pengam Jn
pass
2123
pass
2131½
+8
Rumney River Bridge Jn
pass
2123
pass
2131¾
+8
Marshfield
pass
2126
pass
2136¼
+10
Ebbw Jn
pass
2128½
pass
2140¼
+11
UR
Gaer Jn
pass
2129
pass
2141¼
+12
UR
DM
Newport (South Wales) [NWP]
3
2131
2133
2131
2133
2145¾
2147¼
+14
DM
UM
Maindee West Jn
pass
2134
pass
2148½
+14
Maindee East Jn
pass
2134½
pass
2149
+14
ML
East Usk Jn.
pass
2135½
pass
2150
+14
Llanwern West Jn
pass
2136½
pass
2151
+14
Magor
pass
2140
pass
2153¾
+14
Severn Tunnel Junction [STJ]
4
pass
2141½
pass
2159
+17
UM
UT
Severn Tunnel West
pass
2142½
pass
2200
+17
Severn Tunnel East
pass
2146
pass
2203½
+17
Pilning [PIL]
1
1
pass
2147
pass
2204½
+17
Patchway [PWY]
1
pass
2150½
pass
2207¾
+17
Bristol Parkway [BPW]
1
3
2152
2154
2152
2154
2209¾
2210½
+16
UT
UB
Westerleigh Jn
pass
2158½
pass
2214¾
+16
Chipping Sodbury
pass
2200
pass
2216¼
+16
Badminton
pass
2202
pass
2218¾
+16
Hullavington
pass
2205
pass
2221¼
+16
Little Somerford
pass
2207½
pass
2224¼
+16
Wootton Bassett Jn
1
pass
2211½
pass
2227¼
+15
UB
UM
Swindon [SWI]
3
2217
2219
2217
2219
2233
2234½
+15
UR
UM
Highworth Jn
pass
2220
pass
2236½
+16
Swindon Stratton Green
pass
2220½
pass
2237
+16
Swindon South Marston Jn
pass
2221
pass
2237¼
+16
Bourton
pass
2222
pass
2238¾
+16
Uffington (Oxfordshire)
pass
2225½
pass
2241¾
+16
Challow
pass
2227
pass
2242¾
+15
Wantage Road
1
pass
2228½
pass
2245¼
+16
Steventon
pass
2231
pass
2246½
+15
Milton Junction
pass
2231½
pass
2247¼
+15
Foxhall Jn [XJF]
pass
2232½
pass
2249
+16
Didcot West End
pass
2233
No report
Didcot Parkway [DID]
2
pass
2233
pass
2250
+17
Didcot East Jn
pass
2233
pass
2250¼
+17
Moreton Cutting
pass
2234
pass
2250½
+16
Cholsey [CHO]
2
pass
2235
pass
2252¼
+17
Goring & Streatley [GOR]
2
pass
2237
pass
2254
+17
ML
Pangbourne [PAN]
pass
2239
pass
2255¾
+17
Tilehurst [TLH]
2
pass
2240½
pass
2257
+16
Tilehurst East Jn.
pass
2240½
pass
2257¼
+16
Reading High Level Jn
1
pass
2241½
pass
2258¾
+17
ML
Reading Main Line West
pass
2243
pass
2259½
+16
Reading [RDG]
11
2243
2246
2244
2246
2300½
2302¼
+16
UM
UM
Reading Main Line East
pass
2246½
pass
2303
+16
Kennet Bridge Jn
pass
2247
pass
2304
+17
Twyford West
pass
2249½
pass
2306
+16
Twyford [TWY]
2
pass
2250
pass
2307
+17
ML
Ruscombe
pass
2250½
pass
2307¼
+16
Maidenhead [MAI]
2
pass
2253½
pass
2310¼
+16
Maidenhead East
pass
2254
pass
2310¼
+16
Taplow [TAP]
2
pass
2254½
pass
2311
+16
Burnham [BNM]
pass
2255
pass
2311¼
+16
Slough West
pass
2256
pass
2312½
+16
Slough [SLO]
2
3
pass
2256½
pass
2313¼
+16
Dolphin Jn
pass
2257½
pass
2313½
+16
Langley [LNY]
2
pass
2258½
pass
2314
+15
Iver [IVR]
2
pass
2259½
pass
2314¾
+15
West Drayton Jcn
pass
2300½
pass
2315¼
+14
West Drayton [WDT]
2
pass
2300½
pass
2316
+15
West Drayton East
pass
2301
pass
2316¼
+15
Stockley Junction
pass
2301½
pass
2317½
+16
ML
ML
Heathrow Airport Jn
pass
2302
pass
2318¼
+16
Hayes & Harlington [HAY]
2
pass
2302
pass
2318¾
+16
Southall West Jn
pass
2302½
pass
2319¼
+16
Southall [STL]
2
pass
2303
pass
2319¼
+16
ML
Southall East Jn
pass
2303
pass
2319½
+16
Hanwell [HAN]
1
pass
2303½
pass
2320½
+17
West Ealing Junction
pass
2304
pass
2321
+17
West Ealing [WEA]
pass
2304
pass
2321¼
+17
Ealing Broadway [EAL]
2
pass
2304
pass
2322¾
+18
Acton West
1
pass
2304½
pass
2323¾
+19
ML
ML
Acton Main Line [AML]
2
pass
2305½
pass
2324¼
+19
Friars Jn
pass
2306
No report
Old Oak Common West
pass
2306½
pass
2325
+18
Old Oak Common East
pass
2307
pass
2325¼
+18
Ladbroke Grove
pass
2308
pass
2326¼
+18
UM
3
Portobello Jn (London)
½
pass
2308½
pass
2326¾
+18
Royal Oak Junction
pass
2310
pass
2327¾
+17
London Paddington [PAD]
8
2311
2311
2329½
+18
3
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