The city is too old.
I don't know about 'too old', but it is old. It states in the article that..." the London Underground, opened in the city 150 years ago.: The county I am living in currently, will be celebrating only its 42 birthday tomorrow...think about it.
Why are there so many tunnels under London?
21–30 of 73 posts
Re: Why are there so many tunnels under London?
#22The city is too old.
I don't know about 'too old', but it is old. It states in the article that..." the London Underground, opened in the city 150 years ago.: The county I am living in currently, will be celebrating only its 42 birthday tomorrow...think about it.
That's 30 years before Christopher Columbus was born — and Richard III; 100 years before Queen Elizabeth I was born.
It was built before chimneys were invented: one was fitted at some point, probably at the same time the upstairs floor was put in (you can't have an upstairs without a chimney). The refurbishment date is scratched into the plaster work: Feb 1722.
Re: Why are there so many tunnels under London?
#23The city is too old.
Just new enough that you can usually safely dig without too many delays, though. A problem with tunnel construction in very old cities, in places like Italy and Greece, is that you have a high probability of running into an interesting archaeological site, and then you have to pause construction and decide what to do about it. E.g.: http://www.bbc.co.uk/news/world-europe-21743758
Re: Why are there so many tunnels under London?
#24The city is too old.
Just new enough that you can usually safely dig without too many delays, though. A problem with tunnel construction in very old cities, in places like Italy and Greece, is that you have a high probability of running into an interesting archaeological site, and then you have to pause construction and decide what to do about it. E.g.: http://www.bbc.co.uk/news/world-europe-21743758
Re: Why are there so many tunnels under London?
#25Earlier quoted context omitted.
I don't know about 'too old', but it is old. It states in the article that..." the London Underground, opened in the city 150 years ago.: The county I am living in currently, will be celebrating only its 42 birthday tomorrow...think about it.
And I am very thankful that the undergrounds in the cities where I spent most of my time were built much later: Tunnelling techniques evolved quickly during the late 18th and early 19th century, allowing for much more ‘comfortable’ tunnel diameters – there is a reason the London Underground is called the tube, it’s difficult to stand in most of its trains.
Re: Why are there so many tunnels under London?
#26There are lots of secret MOD tunnels as well. Some of them run out of London across the country with rail tracks to nuclear bunkers that were to be used when nuclear war broke out. To put the scale of it in perspective, one if the tunnels runs to a bunker in Wales south of Aberystwyth.
Do you have a source for that last example? Seems like it would be a bit difficult to keep a tunnel of that scale secret.
Re: Why are there so many tunnels under London?
#27Earlier quoted context omitted.
I don't know about 'too old', but it is old. It states in the article that..." the London Underground, opened in the city 150 years ago.: The county I am living in currently, will be celebrating only its 42 birthday tomorrow...think about it.
And I am very thankful that the undergrounds in the cities where I spent most of my time were built much later: Tunnelling techniques evolved quickly during the late 18th and early 19th century, allowing for much more ‘comfortable’ tunnel diameters – there is a reason the London Underground is called the tube, it’s difficult to stand in most of its trains.
Re: Why are there so many tunnels under London?
#28Earlier quoted context omitted.
I don't know about 'too old', but it is old. It states in the article that..." the London Underground, opened in the city 150 years ago.: The county I am living in currently, will be celebrating only its 42 birthday tomorrow...think about it.
And I am very thankful that the undergrounds in the cities where I spent most of my time were built much later: Tunnelling techniques evolved quickly during the late 18th and early 19th century, allowing for much more ‘comfortable’ tunnel diameters – there is a reason the London Underground is called the tube, it’s difficult to stand in most of its trains.
Re: Why are there so many tunnels under London?
#29There are lots of secret MOD tunnels as well. Some of them run out of London across the country with rail tracks to nuclear bunkers that were to be used when nuclear war broke out. To put the scale of it in perspective, one if the tunnels runs to a bunker in Wales south of Aberystwyth.
Re: Why are there so many tunnels under London?
#30The city is too old.
Just for reference ...
My house was built in 1903. The college I went to was founded in 1352. The city my wife grew up in was occupied by the Romans sometime between 70 and 80 AD.