It's been the age of rising seas for 20,000 years. https://commons.wikimedia.org/wiki/File:Post-Glacial_Sea_Lev...
You mean 8,000 years ago, there was an age of rising seas for the preceding 10,000 years.
How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
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Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#32> Sandy had made a mockery of the largest subway system in the world Is the New York subway really the largest subway in the world? I thought that trophy went to subways in Tokyo or Seoul.
Not sure about biggest but I will say NY subway is far more complex than Tokyo's and I'm a native English speaker and speak no Japanese.
Getting to the correct train in Tokyo was far easier, likely because there was less rerouting than what seems like perpetual issues in NY's subway due to aging infrastructure.
Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#33We can't change the past so have decades to centuries of climate change to handle, but we can do a lot more to stop future contributions to climate change.
The biggest effect anyone can have, beyond fewer kids, less meat, and flying less, is learning to lead others, which multiplies our effects. Of course, to lead others we have to lead ourselves first, which means fewer kids, less meat, flying less, and all those, as means to the end of leading others, especially CEOs and elected officials.
Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#34Earlier quoted context omitted.
It depends how you measure it. NYC has the most stations, 424. Shanghai has the most track, 743 km, and the most annual riders, 2834.69m.
If I were to be the one deciding how to measure this, the “biggest” subway would be the one that moves the most people per day.
For me, complexity would have to be a factor.
A single ring line would in my view count as smaller than a more traditional "flared out" system, assuming they moved the same amount of passengers.
Maybe a complexity factor based on number of distinct tunnels multiplied by number of riders? Hmmm, metrics are hard...
Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#35We can't change the past so have decades to centuries of climate change to handle, but we can do a lot more to stop future contributions to climate change. The biggest effect anyone can have, beyond fewer kids, less meat, and flying less, is learning to lead others, which multiplies our effects. Of course, to lead others we have to lead ourselves first, which means fewer kids, less meat, flying less, and all those, a…
Meanwhile CCP going to extreme measures to reverse their one child policy. Last week, banning tutoring to decrease the cost of raising a child.
Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#36Newer systems being built in Asia are avoiding subways/underground systems and preferring elevated systems. In fact during a major flood, the elevated railway was pretty much the only servicing transporting system in effect.
On the other hand, in case of typhoon elevated lines often stop, unlike underground ones if there is no risk of flooding.
Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#37Newer systems being built in Asia are avoiding subways/underground systems and preferring elevated systems. In fact during a major flood, the elevated railway was pretty much the only servicing transporting system in effect.
Because they trade ugly surface volume occupation for being much cheaper. Flood resistance is a side-effect.
for someone who loves trains, above ground rails are not ugly
Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#38> Sandy had made a mockery of the largest subway system in the world Is the New York subway really the largest subway in the world? I thought that trophy went to subways in Tokyo or Seoul.
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Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#39The Zhengzhou metro, one which got flooded, has blast doors in, and in between stations like most metros in the Bloc. The anger now is because despite millions spent on those blast doors, they were simply not activated. The shift chief of the metro was too afraid to stop the metro. The same for its very powerful flood defence pumps.
Reminds me of a documentary on the flood gates at the Port of Rotterdam. They are operated automatically, humans cannot trigger them (if memory serves well). Reasoning was, that operators live nearby and might tend to close them too soon and too often. Now you have to trust the system to have a proper balance between keeping the port open and protecting communities. Up to now the Rotterdam system seems to work reason…
And nobody needs to be worried about being fired for closing them 'for nothing'.
Re: How Do You Keep a Subway from Flooding in the Age of Rising Seas? (2019)
#40I places in Asia that have monsoon weather one typically walks UP a few steps before going down into a subway station (China/Taiwan/Hong Kong/etc)- for example this MTR entrance in Hong Kong: https://goo.gl/maps/MeiQU9HAKo5NgFAKA This is a great solution to short term small floods, but wont protect you against longer term, or waist deep+ street flooding like we saw in Henan last week.
With something like this: https://commons.wikimedia.org/wiki/File:Exit_A,_Sino-Singapo... the intention is even clearer.
