7 Bridges

1. August 1, 2007: I-35W
2. January 2008 Hastings Bridge
3. March 20, 2008 St. Cloud Bridge
4. March 26, 2008 University of Minnesota Pedestrian Bridge
5. April 25, 2008 Lowry Avenue
6. May 6, 2008 Blatnik Bridge (I-535) in Duluth
7. June 4, 2008 MnDOT barricades Hwy. 43 bridge over Mississippi River at Winona
(post updated: Blatnik and Hastings added 6-6-08)

Private roads vs. Google Streetview

A Minnesota town with private roads,
North Oaks tells Google Maps: Keep out – we mean it, the story from the Strib.
Google maps has apparently complied, judging from the lack of Streetview in the neighborhood.

Interesting bits are that roads in the town are a club good rather than a publicly provided one, so to drive without permission is trespassing. Google’s car which collects streetview data apparently did that.

IBM Commuter Pain study

IBM released a study on commuting … IBM Press room – 2008-05-30 IBM “Commuter Pain? Survey Focuses on Fuel Spending Limit, Frustration and Sleep Deprivation – United States which has gotten an article in newspapers in every city they studied.
The executive summary is here
It should be noted that compared to “ground truth” (i.e. other better done surveys) their results are biased toward participants with longer than average commutes. One also has to question the methodology that simply raised the price and asked whether people would change.
Minneapolis-St. Paul had the least pain of the surveyed cities, but it should be noted it is also the smallest metro area of those surveyed.
The local article is here

The end of traffic and the last man

On Talking Points Memo The Last Traffic Jam … as has been widely reported, total traffic has been decreasing (presumably related to the rise of gas prices and the onset of economic slowdown or recession). The article also includes a nice excerpt from Time c. 1947.
If the trend continues (-4.3% traffic growth per year), we may soon be out of a job.

Carbon ration cards

From the Daily Mail (via Ahmed): Every adult in Britain should be forced to carry ‘carbon ration cards’, say MPs.
Everyone gets carbon credits, but they can be traded.
My first reaction: The transactions costs seem like they would be especially high, isn’t this why “money” was invented? Wouldn’t a carbon tax be more efficient (yes I realize it wouldn’t raise awareness as much, but isn’t that a good thing).

a blog about Networks and Places


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