European Tribune - Comments - European Salon de News, Discussion et Klatsch

European Salon de News, Discussion et Klatsch - 10 March | 107 comments (107 topical, editorial, 0 hidden)

Re: Living off the Planet (none / 0)

BTW, given other obligations, that diary I promised you may take some time... in the meantime, you can read Why Glaeser Got It Wrong: Re-Running The Numbers On High Speed Rail » INFRASTRUCTURIST, which goes beyond picking apart that old hack job which was brought up again by fairleft in the China HSR diary, by doing a detailed calculation for a Dallas-Houston line.

_{*Lunatic*, n.

One whose delusions are out of fashion.}

by DoDo on Fri Mar 12th, 2010 at 03:10:56 PM EST
[ Parent ]

Re: Living off the Planet (none / 0)

That's great, exactly the sort of thing I would like to see more of. Incidentally, he says re CO2 and concrete in construction: "On a somewhat smaller scale, the same can be said for new terminals or runways at airports." James Strickland showed that the concrete and steel in a single runway corresponds to about 650km of high speed rail (though this was for ballasted track rather than slab construction).

by njh on Fri Mar 12th, 2010 at 04:22:13 PM EST
[ Parent ]

Re: Living off the Planet (none / 0)

I did ad hoc high speed line to airport comparisons in Railways, energy, CO2 - Part 2, too, with much more CO2 for HSR. In that calculation, based on the Frankfurt-Cologne line in Germany (which has slab track), most of the concrete was in tunnel linings, but long bridges (like on Asian lines) would exceed slab track similarly.

_{*Lunatic*, n.

One whose delusions are out of fashion.}

by DoDo on Fri Mar 12th, 2010 at 05:11:39 PM EST
[ Parent ]

Re: Living off the Planet (none / 0)

That looks great. One thing to note with steel is that unlike concrete, it can be very efficiently recycled, using little extra CO2. I wonder if this means we should consider building more with steel and less with concrete (or use steel coated in cement for weather resistance - a few cms of low water/cement mortar can protect steel for hundreds of years.

by njh on Sat Mar 13th, 2010 at 06:23:40 AM EST
[ Parent ]

Re: Living off the Planet (none / 0)

There are some good counterstudies in the comments you should read, it seems that the analysis is still rather weak.

by njh on Fri Mar 12th, 2010 at 04:50:03 PM EST
[ Parent ]

Re: Living off the Planet (none / 0)

Well, it's nowhere near a serious study (like the British HS2 study discussed in another Salon), but it can be called one, while Glaeser's is a joke.

_{*Lunatic*, n.

One whose delusions are out of fashion.}

by DoDo on Fri Mar 12th, 2010 at 05:02:02 PM EST
[ Parent ]

European Salon de News, Discussion et Klatsch - 10 March | 107 comments (107 topical, 0 editorial, 0 hidden)

. Home
. About
. Contact
. New User Guide
. FAQ
. ET Editorial Guidelines
. Search
. Search (Google)

Username:
Password:

. Make a new account
. Reset password

Recommended Diaries

Socratic Economics XII: Utopian Government Finance
by Zwackus - May 25
273 comments

A Star is Born
by ChrisCook - May 23
23 comments

The French newspaper Le Monde reports 1.5 million living the...
by Democrats Ramshield - May 27
8 comments

$1,000,000,000,00
0 or what we must remember
by Metatone - May 19
69 comments

The balance of anger and fear
by Frank Schnittger - May 17
44 comments

Stable pricing is to metaphysics as variable pricing is to...
by Upstate NY - May 16
8 comments

Another NRW election
by DoDo - May 13
118 comments

Bundesrat saves PV (and loses Röttgen)
by DoDo - May 12
18 comments

Recent Diaries

The French newspaper Le Monde reports 1.5 million living the...
by Democrats Ramshield - May 27
8 comments

Socratic Economics XII: Utopian Government Finance
by Zwackus - May 25
273 comments

A Star is Born
by ChrisCook - May 23
23 comments

$1,000,000,000,00
0 or what we must remember
by Metatone - May 19
69 comments

The balance of anger and fear
by Frank Schnittger - May 17
44 comments

Stable pricing is to metaphysics as variable pricing is to...
by Upstate NY - May 16
8 comments

A little American intercine battling
by rootless2 - May 14
27 comments

Another NRW election
by DoDo - May 13
118 comments

Bundesrat saves PV (and loses Röttgen)
by DoDo - May 12
18 comments

The mainstream German Magazine Spiegel asks, has the US mixed ...
by Democrats Ramshield - May 10
27 comments

Short Term Climate Forces: Black Carbon, Methane, and...
by gmoke - May 9

Twenty days of Crisis for Cameron
by ceebs - May 9
22 comments

SYRIZA and the Eurocrats: a letter of intent
by talos - May 9
363 comments

French Parliamentary Elections: a look under the hood
by Bernard - May 8
59 comments

Why haven't we had WWIII yet?
by Migeru - Apr 30
258 comments

More Diaries...

Occasional Series

Click for full list