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> That can be done by having the lower trains be only for express You have no idea of the layout of the Underground, obviously. They're not lower trains that f
by vertex-four 9y ago
> That can be done by having the lower trains be only for express
You have no idea of the layout of the Underground, obviously. They're not lower trains that follow the same routes - they're entirely different (and very important!) routes which just happen to be a lot lower than some others.
- pjc50 9y agoIndeed - and the same line varies in depth across the city. Generally lines are deeper closer to the core, and the Northern Line is anomalously deep due to being built in 1860 when soil physics was not so well understood so extra margin had to be allowed for the river. Also, there isn't really such a thing as an "express" on the underground.
- em3rgent0rdr 9y agoThanks, yes apparently I don't have any understanding of London's underground. I was thinking more generally.