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Trivia: Highest location that each TOC/FOC serves or passes

Man of Kent

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Class15

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London Overground should definitely be Parliament Hill summit, between Gospel Oak and Hampstead Heath. Ground level is indeed higher between Hampstead Heath and Finchley Road & Frognal but the tunnel means that the overground doesn’t follow that.
 

Magdalia

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London Overground should definitely be Parliament Hill summit, between Gospel Oak and Hampstead Heath. Ground level is indeed higher between Hampstead Heath and Finchley Road & Frognal but the tunnel means that the overground doesn’t follow that.
I am not convinced, though it is quite hard to follow the contour lines on the Ordnance Survey. I think that Crystal Palace is higher than Gospel Oak, despite the station being at a tunnel entrance. I've visited both many times over many years.
 

Class15

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I am not convinced, though it is quite hard to follow the contour lines on the Ordnance Survey. I think that Crystal Palace is higher than Gospel Oak, despite the station being at a tunnel entrance. I've visited both many times over many years.
That’s interesting - I just assumed Parliament Hill because of the number of times I’ve seen freight stall there! But you may be right… I don’t know Crystal Palace… other side of London to me!
 

PLY2AYS

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I'm going to suggest that Chiltern's summit is somewhere around Saunderton, at about 120m
Just checked.
On the Western, just north of Saunderton (Bledlow-cum-Saunderton ridge) is 132/133m above sea level.
But on the Met line, just north of Great Missenden, Cobblershill Lane bridge between Little Hampden and adjacent to the HS2 works is 159/160m above sea level.
 

Magdalia

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kieron

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Rhymney at 268m (879ft), Ebbw Vale Town at 276m (906 ft), both beaten by Llangynllo Tunnel 309m (1014 ft).
According to the figures on railwaydata.co.uk, the highest point there is south of the tunnel at 18m 31ch 21yds. They list the summit as being 23yds north of the bridge over Llancoch Brook, although I don't know where they measure the bridge.

The web site doesn't list absolute elevations and splits everything up by ELR, so comparing heights more generally is a bit of a chore.
 

Taunton

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Subsequently it has occurred to me that the Stansted Airport branch could go higher, but it is very difficult to tell because of the tunnel under the runway and the station under the terminal.
Stansted runway at the midpoint where the line goes underneath is elevation 348ft (107m), so how far under is the railway.
 

kieron

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Stansted runway at the midpoint where the line goes underneath is elevation 348ft (107m), so how far under is the railway.
The railway is about the same when it gets to the station, which makes sense as it's in the open air for a bit between the tunnel and the station.

The track through Elsenham is 71.65m above the start of the BGK ERL. The southern chord leading to the Stansted branch starts at 33mi 54ch on BGK, 53.17m higher than the start, and the buffers at Stansted Airport station are 32.16m higher than the junction. If Elsenham is 94m above sea level, that makes Stansted 107m above.
 

Magdalia

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The railway is about the same when it gets to the station, which makes sense as it's in the open air for a bit between the tunnel and the station.

The track through Elsenham is 71.65m above the start of the BGK ERL. The southern chord leading to the Stansted branch starts at 33mi 54ch on BGK, 53.17m higher than the start, and the buffers at Stansted Airport station are 32.16m higher than the junction. If Elsenham is 94m above sea level, that makes Stansted 107m above.
No it doesn't make sense, because the station is below the terminal. It isn't at runway level, which is 107m above sea level.

Stansted South Junction to Stansted Airport Station is 3 miles 13 chains, of which 1 mile 8 chains is in the tunnel. A height gain of 32.16 metres would require an average gradient of 1 in 157. I doubt that the gradient in the tunnel is as steep as 1 in 157 which would require the remainder to be significantly steeper.

And what is BGK ERL please?
 

kieron

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No it doesn't make sense, because the station is below the terminal. It isn't at runway level, which is 107m above sea level.
I only know what the web site I checked says. If you feel there's an error then I have no way to investigate your concern.
And what is BGK ERL please?
The link I included gave elevations in terms of being above or below some other point, rather than in comparison with sea level or something, so I couldn't compare the stations directly. The start of the BGK ERL is just the point taken to have an elevation of 0 for the line to Elsenham (which is also the line to the start of the Stansted branch). The branch itself has a separate "elevation 0" point.

There's information about what ELRs are on railwaydata.co.uk, but I don't know if it would make it any easier to understand how I calculated the elevation of the track.
 

Magdalia

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Stansted branch gradients are shown as percentages. Looks like there are 800m+ of 1.5%, or 1:66.
Thanks for this.

It is quite complicated with different sources using imperial and metric measurements. I have tried to convert everything to metres to match the Ordnance Survey.

The Sectional Appendix shows 61 chains between the tunnel portal and the platform 1 buffer stops. That's about 1220 metres.

However, platform 1 is 359 metres long so it is only 862 metres between the tunnel portal and the end of the platform.

Furthermore, there are also the crossovers at the platform ends, these are unlikely to be on a steep gradient. The distance between the tunnel portal and the crossovers is 34 chains or about 680 metres.

At 1 in 66 the line can climb about 10 metres in that distance. The graph in the link suggests only about 8 metres.

The graph also implies that inside the tunnel is not level track, but the increase in height from the west end to the east end is only 2-3 metres. Without knowing how that graph is compiled it isn't possible to be sure whether this actually reflects what's on, or under, the ground.

At the other end of the tunnel the Ordnance Survey suggests that the line is about 90 metres above sea level. The 90 metre contour is near the tunnel portal, where the line is in a cutting, and there are two spot heights nearby at 93 metres and 94 metres.

I am now convinced that Stansted Airport is the highest point of Greater Anglia, higher than Elsenham or Ingrave, but I'm still not convinced that the buffer stops are 107 metres above sea level and at roughly the same level as the runway.
 

thenorthern

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As someone has said Ais Gill is the highest point in England on the railway and thus the highest point on Northern. The highiest station on Northern is of course Dent.

Given it's still the United Kingdom, I know Pomeroy used to be the highest station in Northern Ireland, I am not sure what the current highest station there is though.
 

Taunton

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I am now convinced that Stansted Airport is the highest point of Greater Anglia, higher than Elsenham or Ingrave, but I'm still not convinced that the buffer stops are 107 metres above sea level and at roughly the same level as the runway.
Purely from observation, when you go in to the airport from the car park, ground level there, you look down on the station tracks (well, I do) and go up the escalator to the terminal floor, which courtesy of 1980s architect Norman Foster is flat throughout. But look out of the opposite windows, when you eventually get there after slaloming to and fro through the duty-free 'bargains', and this floor is well above the aircraft apron. It doesn't seem unreasonable that the railway and the apron are at the same level, despite the former seemingly having required excavation. Rather by definition, if you are at a highest point of any sort the surrounding ground is unlikely to be pancake-flat. I suspect Mr Foster's designs provided plenty of work for bulldozers all around. One also understands that nowadays in tunnel design they are best done to a somewhat gable vertical alignment, so they naturally drain any penetrating groundwater outside, and hopefully on into the watercourses, without the need for mechanical pumping.
 
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etr221

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Something I was surprised to find out is that, excluding the Snowdon Mountain, the highest point on a railway line in Wales is Whistle Inn, on the Pontypool and Blaenavon, at just under 400m, say 1300 feet.
 

A S Leib

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Something I was surprised to find out is that, excluding the Snowdon Mountain, the highest point on a railway line in Wales is Whistle Inn, on the Pontypool and Blaenavon, at just under 400m, say 1300 feet.
Southern Scotland's surprisingly* hilly as well; the Leadhills and Wanlockhead Railway beats any other adhesion railway in the UK.

*Just how surprising depends on if you think of the area as "next to Glasgow and Edinburgh" or "next to the Lake District".
 

D6130

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As someone has said Ais Gill is the highest point in England on the railway and thus the highest point on Northern. The highiest station on Northern is of course Dent.

Given it's still the United Kingdom, I know Pomeroy used to be the highest station in Northern Ireland, I am not sure what the current highest station there is though.
Newry?
 

Taunton

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How does the top of Honiton Bank compare?
I believe the highest point on the old LSWR was Woody Bay, penultimate station on the old Lynton & Barnstaple narrow gauge, and when that closed in 1935 it was then nearby Mortehoe, again penultimate station on the Ilfracombe line. Both were characterised by then a steep fall to the terminus, which itself in both cases was well above the town.
 

hermit

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I believe the highest point on the old LSWR was Woody Bay, penultimate station on the old Lynton & Barnstaple narrow gauge, and when that closed in 1935 it was then nearby Mortehoe, again penultimate station on the Ilfracombe line. Both were characterised by then a steep fall to the terminus, which itself in both cases was well above the town.
True if you mean the Southern, but the L&B was not part of the LSWR.
 

rd749249

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According to my route map, Brentwood Bank / Ingrave summit is 325 feet or 99m at 19m 20c.
 

Sir Felix Pole

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True if you mean the Southern, but the L&B was not part of the LSWR.
Highest point (not station) on the Southern Rly after the L & B closed was near Sourton on the Okehampton - Plymouth line at 950ft. A 'N' class loco and train were snowed in for days here during the 1963 'Big Freeze'. For the GWR the highest point was Princetown on Dartmoor.
 

davyp

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Not by any definition a main line, but the Hindlow/Dowlow branch above Buxton straddles the 1250ft contour - 381 metres. DB, GBRF and FL, between them run several trains each day.
 

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