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1L36 2023 Swansea to London Paddington
Departing on 4th December 2025

operated by
Great Western Railway
10 coaches
800019
800023
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
2023¼
USM
Swansea Loop East
pass
2024½
pass
2024¾
Landore Junction
pass
2025½
pass
2026
USM
UM
Llansamlet [LAS]
2
pass
2028½
pass
2029¼
Skewen [SKE]
2
pass
2030½
pass
2031¼
Neath [NTH]
2
2034
2035
2033½
2035
2033¾
2034¾
Briton Ferry West Jn
pass
2037½
pass
2037½
Port Talbot Parkway [PTA]
2
2041
2042
2041
2042½
2041¼
2042¼
Port Talbot East
pass
2043½
No report
Margam Middle Jn
pass
2044½
pass
2043½
Margam East Jn
pass
2045½
pass
2045
Margam Moors Jn.
pass
2046½
pass
2046½
UM
Pyle [PYL]
2
pass
2048
pass
2048
Stormy
pass
2049½
pass
2050¼
At platform
Bridgend [BGN]
2
2054
2055
2053½
2055
2055½
2056¼
+1
UM
UM
Tremains
pass
2056
pass
2058¼
+2
Pencoed Up Passenger Loop
pass
2058½
No report
Pencoed [PCD]
2
pass
2059
pass
2100½
+1
Llanharan [LLR]
1
pass
2101
pass
2102½
+1
Llantrisant [LTI]
pass
2102½
No report
Pontyclun [PYC]
1
2
pass
2103
pass
2104¾
+1
Miskin
pass
2105
pass
2106¾
+1
St Fagans L C
pass
2109½
pass
2110¾
+1
Leckwith North Jn
1½
pass
2112
pass
2113
+1
UM
C
Cardiff West
pass
2115½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
2116
2120
2117
2120
2116¼
2119½
C
B
Cardiff East
pass
2120½
pass
2120¾
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
2129½
pass
2128¾
UM
Newport (South Wales) [NWP]
4
2131
2133
2131
2133
2130¾
2133
UM
UM
Maindee West Jn
pass
2134
pass
2134½
Maindee East Jn
pass
2134½
pass
2135
East Usk Jn.
pass
2135
pass
2135¾
Llanwern West Jn
pass
2136
pass
2136¾
Magor
pass
2140
pass
2139½
Severn Tunnel Junction [STJ]
4
pass
2141½
pass
2142¼
UM
UT
Severn Tunnel West
pass
2142½
pass
2143
Severn Tunnel East
pass
2146
pass
2146½
Pilning [PIL]
1
1
pass
2147
pass
2147½
Patchway [PWY]
1
pass
2150½
pass
2150¼
Bristol Parkway [BPW]
1
3
2152
2154
2152
2154
2152
2154
UT
UB
Westerleigh Jn
pass
2158½
pass
2157¾
Chipping Sodbury
pass
2200
pass
2159¼
Badminton
pass
2202
pass
2201½
Hullavington
pass
2205
pass
2204
Little Somerford
pass
2207½
pass
2207
Wootton Bassett Jn
1
pass
2211½
pass
2210¼
-1
UB
UM
Swindon [SWI]
3
2217
2219
2217
2219
2215¾
2235¾
+16
UR
UM
Highworth Jn
pass
2220
pass
2237½
+17
Swindon Stratton Green
pass
2220½
pass
2238
+17
Swindon South Marston Jn
pass
2221
pass
2238¼
+17
Bourton
pass
2222
pass
2239¾
+17
Uffington (Oxfordshire)
pass
2225½
pass
2242½
+17
Challow
pass
2227
pass
2243½
+16
Wantage Road
1
pass
2228½
pass
2246
+17
Steventon
pass
2231
pass
2247½
+16
Milton Junction
pass
2231½
pass
2248¾
+17
Foxhall Jn [XJF]
pass
2232½
pass
2251¾
+19
Didcot West End
pass
2233
No report
Didcot Parkway [DID]
2
pass
2233
pass
2252¾
+19
Didcot East Jn
pass
2233
pass
2253¼
+20
Moreton Cutting
pass
2234
pass
2253½
+19
Cholsey [CHO]
2
pass
2235
pass
2255¼
+20
Goring & Streatley [GOR]
2
pass
2237
pass
2257
+20
ML
Pangbourne [PAN]
pass
2239
pass
2258¾
+20
Tilehurst [TLH]
2
pass
2240½
pass
2300¼
+19
Tilehurst East Jn.
pass
2240½
pass
2300½
+20
Reading High Level Jn
1
pass
2241½
pass
2302¼
+20
ML
Reading Main Line West
pass
2243
pass
2303¼
+20
Reading [RDG]
11
2243
2246
2244
2246
2304¼
2305½
+19
UM
UM
Reading Main Line East
pass
2246½
pass
2306
+19
Kennet Bridge Jn
pass
2247
pass
2306¾
+19
Twyford West
pass
2249½
pass
2308¾
+19
Twyford [TWY]
2
pass
2250
pass
2309½
+19
ML
Ruscombe
pass
2250½
pass
2309¾
+19
Maidenhead [MAI]
2
pass
2253½
pass
2313
+19
Maidenhead East
pass
2254
pass
2313
+19
Taplow [TAP]
2
pass
2254½
pass
2313¾
+19
Burnham [BNM]
pass
2255
pass
2314
+18
Slough West
pass
2256
pass
2315
+19
Slough [SLO]
2
3
pass
2256½
pass
2315¾
+19
Dolphin Jn
pass
2257½
pass
2316
+18
Langley [LNY]
2
pass
2258½
pass
2316¾
+18
Iver [IVR]
2
pass
2259½
pass
2317½
+18
West Drayton Jcn
pass
2300½
pass
2317¾
+17
West Drayton [WDT]
2
pass
2300½
pass
2318¼
+17
West Drayton East
pass
2301
pass
2318¼
+17
Stockley Junction
pass
2301½
pass
2318½
+17
ML
ML
Heathrow Airport Jn
pass
2302
pass
2318¾
+16
Hayes & Harlington [HAY]
2
pass
2302
pass
2319¼
+17
Southall West Jn
pass
2302½
pass
2319½
+17
Southall [STL]
2
pass
2303
pass
2319½
+16
ML
Southall East Jn
pass
2303
pass
2319¾
+16
Hanwell [HAN]
1
pass
2303½
pass
2320¾
+17
West Ealing Junction
pass
2304
pass
2321
+17
West Ealing [WEA]
pass
2304
pass
2321¼
+17
Ealing Broadway [EAL]
2
pass
2304
pass
2322
+17
Acton West
1
pass
2304½
pass
2322
+17
ML
ML
Acton Main Line [AML]
2
pass
2305½
pass
2322¾
+17
Friars Jn
pass
2306
No report
Old Oak Common West
pass
2306½
pass
2323¾
+17
Old Oak Common East
pass
2307
pass
2324¼
+17
Ladbroke Grove
pass
2308
pass
2325¼
+17
UM
3
Portobello Jn (London)
½
pass
2308½
pass
2325¾
+17
Royal Oak Junction
pass
2310
pass
2327
+17
London Paddington [PAD]
8
2311
2311
2328¾
+17
3
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