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1L36 2023 Swansea to London Paddington
Departing on 9th January 2026

operated by
Great Western Railway
10 coaches
800036
800030
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
2022½
USM
Swansea Loop East
pass
2024½
pass
2024
Landore Junction
pass
2025½
pass
2025½
USM
UM
Llansamlet [LAS]
2
pass
2028½
pass
2028½
Skewen [SKE]
2
pass
2030½
pass
2030½
Neath [NTH]
2
2034
2035
2033½
2035
2033¼
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
2043¾
Margam East Jn
pass
2045½
pass
2045¼
Margam Moors Jn.
½
pass
2046½
pass
2046¾
UM
Pyle [PYL]
2
pass
2048½
pass
2048¼
Stormy
pass
2050
pass
2050¼
At platform
Bridgend [BGN]
2
2054
2055
2054
2055½
2058
2059
+3
UM
UM
Tremains
pass
2056½
pass
2101¼
+4
Pencoed Up Passenger Loop
pass
2059
No report
Pencoed [PCD]
2
pass
2059½
pass
2103½
+4
Llanharan [LLR]
1
pass
2101½
pass
2107¼
+5
Llantrisant [LTI]
pass
2103
No report
Pontyclun [PYC]
1
2
pass
2103½
pass
2111¾
+8
Miskin
pass
2105½
pass
2113¾
+8
St Fagans L C
pass
2110
pass
2117¾
+7
Leckwith North Jn
1
pass
2112½
pass
2120¾
+8
UM
C
Cardiff West
pass
2115½
No report
Cardiff Central [CDF]
Pathed as Class 80x on electric from here
2
2116
2120
2117
2120
2124¼
2126
+6
C
B
Cardiff East
pass
2120½
pass
2127¼
+6
Long Dyke Jn
pass
2122
pass
2128¼
+6
B
UM
Moorland Road Junction
pass
2122½
pass
2129
+6
Pengam Jn
pass
2123
pass
2129¼
+6
Rumney River Bridge Jn
pass
2123
pass
2129½
+6
Marshfield
pass
2126
pass
2132¼
+6
Ebbw Jn
pass
2128½
pass
2135
+6
UM
UM
Gaer Jn
pass
2129
pass
2135¼
+6
UM
Newport (South Wales) [NWP]
3
2131
2133
2131
2133
2137½
2138½
+5
UM
UM
Maindee West Jn
pass
2134
pass
2140
+6
Maindee East Jn
pass
2134½
pass
2140½
+6
ML
East Usk Jn.
pass
2135½
pass
2141¼
+5
Llanwern West Jn
pass
2136½
pass
2142¼
+5
Magor
pass
2140
pass
2145
+5
Severn Tunnel Junction [STJ]
4
pass
2141½
pass
2147¾
+6
UM
UT
Severn Tunnel West
pass
2142½
pass
2148½
+6
Severn Tunnel East
pass
2146
pass
2152
+6
Pilning [PIL]
1
1
pass
2147
pass
2153¼
+6
Patchway [PWY]
1
pass
2150½
pass
2155¾
+5
Bristol Parkway [BPW]
1
3
2152
2154
2152
2154
2157½
2158¾
+4
UT
UB
Westerleigh Jn
pass
2158½
pass
2202¾
+4
Chipping Sodbury
pass
2200
pass
2204¼
+4
Badminton
pass
2202
pass
2206½
+4
Hullavington
pass
2205
pass
2209
+4
Little Somerford
pass
2207½
pass
2212
+4
Wootton Bassett Jn
1
pass
2211½
pass
2215
+3
UB
UM
Rushey Platt
pass
2215½
pass
2218½
+3
UM
UR
Swindon [SWI]
3
2217
2219
2217
2219
2220½
2221¾
+2
UR
UM
Highworth Jn
pass
2220
pass
2223¾
+3
Swindon Stratton Green
pass
2220½
pass
2224¼
+3
Swindon South Marston Jn
pass
2221
pass
2224½
+3
Bourton
pass
2222
pass
2225¾
+3
Uffington (Oxfordshire)
pass
2225½
pass
2228¾
+3
Challow
pass
2227
pass
2229¾
+2
Wantage Road
1
pass
2228½
pass
2232¼
+3
Steventon
pass
2231
pass
2233½
+2
Milton Junction
pass
2231½
pass
2234¼
+2
Foxhall Jn [XJF]
pass
2232½
pass
2235¼
+2
Didcot West End
pass
2233
No report
Didcot Parkway [DID]
2
pass
2233
pass
2236
+3
Didcot East Jn
pass
2233
pass
2236
+3
Moreton Cutting
pass
2234
pass
2236¼
+2
Cholsey [CHO]
2
pass
2235
pass
2237¾
+2
Goring & Streatley [GOR]
2
pass
2237
pass
2239½
+2
ML
Pangbourne [PAN]
pass
2239
pass
2241½
+2
Tilehurst [TLH]
2
pass
2240½
pass
2242½
+2
Tilehurst East Jn.
pass
2240½
pass
2242¾
+2
Reading High Level Jn
1
pass
2241½
pass
2244
+2
ML
Reading Main Line West
pass
2243
pass
2244¾
+2
Reading [RDG]
10
2243
2246
2244
2246
2245½
2246¾
UM
UM
Reading Main Line East
pass
2246½
pass
2247½
Kennet Bridge Jn
pass
2247
pass
2248
+1
Twyford West
pass
2249½
pass
2250
Twyford [TWY]
2
pass
2250
pass
2250¾
ML
Ruscombe
pass
2250½
pass
2251
Maidenhead [MAI]
2
pass
2253½
pass
2254¼
Maidenhead East
pass
2254
pass
2254¼
Taplow [TAP]
2
pass
2254½
pass
2255
Burnham [BNM]
pass
2255
pass
2255
Slough West
pass
2256
pass
2256¼
Slough [SLO]
2
3
pass
2256½
pass
2257
Dolphin Jn
pass
2257½
pass
2257½
Langley [LNY]
2
pass
2258½
pass
2258½
Iver [IVR]
2
pass
2259½
pass
2259¼
West Drayton Jcn
pass
2300½
pass
2300
West Drayton [WDT]
2
pass
2300½
pass
2300½
West Drayton East
pass
2301
pass
2300¾
Stockley Junction
pass
2301½
pass
2301
ML
ML
Heathrow Airport Jn
pass
2302
pass
2301½
Hayes & Harlington [HAY]
2
pass
2302
pass
2302
Southall West Jn
pass
2302½
pass
2302½
Southall [STL]
2
pass
2303
pass
2302¼
ML
Southall East Jn
pass
2303
pass
2302½
Hanwell [HAN]
1
pass
2303½
pass
2303½
West Ealing Junction
pass
2304
pass
2304
West Ealing [WEA]
pass
2304
pass
2304¼
Ealing Broadway [EAL]
2
pass
2304
pass
2304¾
Acton West
1
pass
2304½
pass
2304¾
ML
ML
Acton Main Line [AML]
2
pass
2305½
pass
2305½
Friars Jn
pass
2306
No report
Old Oak Common West
pass
2306½
pass
2306
Old Oak Common East
pass
2307
pass
2306½
Ladbroke Grove
pass
2308
pass
2307¼
UM
3
Portobello Jn (London)
½
pass
2308½
pass
2308
Royal Oak Junction
pass
2310
pass
2309
London Paddington [PAD]
8
2311
2311
2310¾
3
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