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Comment by BuildTheRobots | Hacker News Reader

There's a handful of stations on the tube where above ground they're but a few minutes walk even though underground the train takes much longer (and I believe I much more circuitous path). IIRC you can actually jump out at the platform and run above ground to the next station before the train arrives.

Edit: Here's a guy racing the Circle Line from Mansion House to Cannon Street https://www.youtube.com/watch?v=PH_Z8Ghuq6E

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Here's a map showing where it's quicker to walk: http://rodcorp.typepad.com/rodcorp/2003/10/london_tube_map.h...

I know than a lot of the lines had to follow weird quirky routes as they are built under the roads, not the houses. This was something to do with the cost of getting permission to build under other people's properties IIRC

Also a lot of the older lines - like the circle line - are much more shallow and were built by digging up the roads, putting in the tunnel and covering it back up (cut and cover) rather than by boring the tunnels.

In addition, quite a few of the curves on the Central Line are there to avoid digging through plague pits - apparently

No eminent domain law in the UK?

Eminent domain comes from English common law. The crown ultimately owns everything (i.e. holds eminent domain). Your "fee simple" property allows you to hold rights in the property in perpetuity in exchange for a simple fee (as opposed to a lease). The crown still holds eminent domain, however, and can take it away. The "constitutional" part of "constitutional monarchy" does create a process and establish compensation and such so that your rights can't be taken away arbitrarily.

This reminds me of changing platforms at Bank. IIRC Northen to DLR is something like a 3 mile walk.

Edit: I obviously don't recall correctly! I knew it was some change that was hefty.

There's a direct staircase between the Northern and DLR, takes 30 seconds. Don't leave the platform at the end, look for the staircase in the middle.

Circle/District to Waterloo & City is the longest walk at Bank. 10 minutes say TFL.

http://www.cityam.com/assets/uploads/content/2015/10/bank-56...

More long interchanges here: http://www.cityam.com/226215/longest-tube-interchange-10-tub...

Northern and DLR are like right next to each other underground... the longest will be going from Waterloo & City or the Central line, across to the District line.

https://www.ianvisits.co.uk/blog/wp-content/uploads/2015/07/...

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