Raising speed limits doesn’t lead to faster driving

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I’ve seen several articles about this lately as several states consider raising highway speed limits: raising the speed limits does not lead more people to drive faster.

Traffic experts say that motorists tend to drive at a speed they feel comfortable, regardless of the posted speed limit. And according to Michigan Department of Transportation spokesman Rob Morosi, comfortable drivers generally make for safe roads.

“There’s a misconception that the faster the speed limit, the more dangerous the road,” said Morosi, “and that’s not necessarily true. Speed limits are most effective when the majority of people driving are comfortable at that speed.”…

Common sense, then, would suggest that increasing a speed limit would lead those motorists to increase their speed at a similar rate. But Megge, pointing to I-96 in Flint as a striking example, says that belief is not supported by the research.

Before 2005, traffic studies indicated that most motorists were traveling the Interstate at roughly 73 mph, he said. After the speed limit was increased, most motorists still traveled the Interstate at roughly 73 mph.

“When we raise a speed limit, traffic speed does not automatically increase. That’s a myth,” Megge said. “I’ve been doing this 15 years and raised 300 speed limits, and never have we seen or observed a wholesale increase in traffic speeds. It’s a very counter-intuitive idea. But the science and engineering works. We want to ensure it’s safe and fair to the public.”

Common sense approaches often don’t apply to traffic. This finding about speed limits fits with another finding about traffic signs: drivers don’t necessarily pay attention. Read about several places in Europe that have no traffic signs and few traffic markers and safety improves. In the case of driving speed, drivers seem to pay more attention to nearby drivers rather than the official speed limit. So even as people often drive solo and might argue their actions on the road are the result of their own individual choices, driving is indeed a social activity.

Here is a second good example regarding traffic that counters “common sense” or common behavior: using all possible lane space to merge is more efficient for everyone rather than having drivers block off lanes that will soon close.

 

Plans for the first skyscraper that can disappear

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Construction is expected to begin soon on a South Korean skyscraper that could hide itself:

[T]he world’s first disappearing skyscraper has just been approved for construction for the Incheon International Airport area outside Seoul, South Korea. No date is given as the projected completion yet, but according to Architizer, Tower Infinity, designed by GDS Architects, will rise 450 meters (1476.38 feet) in the air and feature “a cutting-edge LED façade system that allows visual information behind the skyscraper to be captured and simultaneously projected from the tower’s surface.” The building, in turn, will “blend into the background like an enormous, crystalline chameleon.”

Tower Infinity, which will be filled not with residences but with “entertainment and leisure purposes,” will have the third highest observation deck in the world, and its the exterior can also be used as a giant screen to project photos or movies. Despite its massive, thunderous stature—the architects believe that the primary function of the skyscraper, which they’ve nicknamed the “Anti-Landmark,” is to “celebrate the global community rather than focus on itself.” They write: “Instead of symbolizing prominence as another of the world’s tallest and best towers, our solution aims to provide the World’s first invisible tower, showcasing innovative Korean technology while encouraging a more Global narrative in the process.”

Whether Tower Infinity is “a magical piece of technological ingenuity, or a cynical new branch of architectural exhibitionism,” as Architizer puts it, one thing’s for sure: the $28B “Dream Hub,” a minicity of architectural experimentation composed of buildings by Daniel Libekind, Foster + Partners, Skidmore, Owings & Merrill, among others, as well as a rather controversial number by MVRDV, probably won’t happen in Seoul.

It will be interesting to see how this type of facade will be deployed. Imagine a regular show where the building lights up and then suddenly disappears. In a less urban area or if the backdrop is conducive, the building could disappear to be replaced by a scene of nature. Or, the LCD facade might be used as a giant advertising screen. Perhaps new regulations and codes have to be developed by urban municipalities to limit what the building might do.

But, I can’t help thinking the building has a future in action movies, perhaps the James Bond or Mission: Impossible series, as the centerpiece in some bizarre plot.

American colleges have Gothic architecture because they wanted to be linked to English universities, make clear their intellectual heritage

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American colleges adopted Gothic architecture to make statements about their connections to the past as well as to other well-known schools:

American universities had always treasured the influence of Oxford and Cambridge. The colleges that would become the Ivy League were meant to model the Oxbridgian ideal of constructing a college around a quadrangle. In practice, though, American colleges of the 18th century were quite different. They were more devoted to scholarship than their British brethren. They were disconnected from a university. And they were poorer: Often, they didn’t have enough money to complete a ring of buildings around their quad…

“What Gothic meant changed depending on the time,” Johanna Seasonwein, a fellow at Princeton University Art Museum, told me. When Victorians emulated Gothic, they did it sloppily, mixing styles and idioms. “Something Islamic, something Byzantine,” might get thrown in there, says Seasonwein. This was the Victorian Gothic of the 1860s and ‘70s: a mishmash.

Collegiate Gothic, which followed Victorian Gothic, was much more precise. It emulated Oxford and Cambridge more directly.

There’s even a patient zero, of sorts, of Collegiate Gothic. In 1894, Bryn Mawr commissioned a new building, Pembroke. Its interpretation of Gothic so inspired other schools that they commissioned similar plans from the architects which designed the hall. (That firm, Stewardson & Cope, wound up constructing a near-copy of Pembroke on Princeton’s campus, where it’s called Blair Hall.)…

Collegiate Gothic was not a naive emulation, though. The Gothic revival “was just as much saying who was accepted in this atmosphere [of the college] as who was not,” says Seasonwein. Universities were expanding, and welcoming new students, but they were still mostly populated by WASPy men. Before the 1890s, many college presidents would have resisted a filigreed medieval style for fear it would look too “papist.”

Woodrow Wilson, when president of Princeton, has a now-famous quote about the revival: “By the very simple device of building our new buildings in the Tudor Gothic style we seem to have added a thousand years to the history of Princeton,” he said. Normally, the quote is truncated there, but in fact it continues: “…by merely putting those lines in our buildings which point every man’s imagination to the historical traditions of learning in the English-speaking race.” (Emphasis mine.)

All together, this is a good reminder that an architectural style we associate with a particular set of activities didn’t necessarily have to be. Social forces pushed colleges to adopt a particular architecture and they assumed this design communicated key messages.

The examples of collegiate Gothic cited in this article tend to be from elite Northeast and Midwest institutions. So does this architecture today still function in a similar manner, clearly demarcating these campuses as a cut above the rest? Other kinds of colleges, perhaps marked by region or the year they were founded or the students they serve, might have intentionally adopted other architectural styles to communicate other messages. Let’s say we wanted to look at the architecture of community colleges. I suspect more of them are post-World War II institutions that more modernist and functional architecture. What exactly does this communicate? Some counterfactuals might be interesting to look at as well: the community college with more traditional architecture or the elite school, like a Caltech, that has a different architectural style.

New York’s skyline and buildings on 9/11 and today

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This set of photos compares New York’s skyline and buildings on September 11, 2001 to its current state. As you might expect, there is still quite a bit of construction going on. But, after a flurry of conversation in the years after 9/11 about how New York would rebuild, I have heard little in recent years about how this all might transform these spaces in New York City. The new One World Trade Center Place – the Freedom Tower – is interesting but how will it fit in with the surrounding neighborhood, fit in with New York’s skyline, and change New York’s identity?

US News & World Report changing up its college ranking methodology

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US News & World Report recently announced changes to how it ranks colleges:

  • The “student selectivity” portion of the methodology will count for 12.5 percent of a college’s total, not 15 percent.
  • Within the student selectivity formula, class rank will count for 25 percent, not 40 percent. The change is attributed to the increase in the proportion of high schools that do not report class rank. SAT/ACT scores, meanwhile, rise to 65 percent from 50 percent of that score. (The rest isn’t explained but has in the past been based on colleges’ acceptance rates.)
  • Graduation rate performance (a measure that attempts to reward colleges for doing better than expected with their student body) will be applied to all colleges, not just the “national” ones at the top of the rankings.
  • “Peer assessment” — one of the most widely criticized criteria, based on a survey of presidents — will be cut from 25 to 22.5 percent of the formula for evaluating regional colleges. (One of the questions U.S. News declined to answer was whether there would be any change in the weighting for national universities.)
  • Graduation and retention rates will matter more for national universities, going from 20 percent to 22.5 percent.

This would really get interesting if these changes lead to significant shake-ups in the rankings. If some colleges move up quite a bit and, perhaps more importantly, others fall (knowing that people/institutions would feel a loss harder than an equivalent gain), there could be a lot of discussion. It would probably lead to schools that drop decrying the changes while colleges that rise would praise the new system.

It is too bad we don’t get an explanation of why these changes were made. The validity of the methodology is always in question but US News could at least try to make a case.

When you build a Walmart in Chicago, you better make sure public transit goes there

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A new Walmart under construction on Chicago’s South Side has a problem: public transit doesn’t make it all the way to the store.

CTA bus routes No. 106 East 103rd and No. 111 111th/King Drive currently stop at Cottage Grove Avenue, which is several blocks from the store that is part of a $135 million development.

Beale said he is outraged and he threatened to convene public hearings on the CTA bus routes if the situation is not rectified by the time the Wal-Mart opens this week.

The alderman said the retail developer built the site to accommodate buses with a bus turnaround and nearby sidewalks for commuters. He said CTA officials told him it would cost $680,000 a year to extend the two bus routes to the Wal-Mart. But Beale said the costs would be offset by the additional riders making trips to the store.

CTA officials, acknowledging that they signed the 2011 contract Beale described, said late Monday afternoon that the transit agency is working with the developer and Beale and will implement service “as soon as possible.”

It sounds like the CTA is behind on this one. At the same time, this provides an interesting contrast to the typical suburban or exurban Walmart which relies on a large parking lot full of drivers. Big box stores are still relatively rare in denser big cities, even as companies like Walmart and Target (their first Manhattan location opened three years ago) are looking to expand. Thus far, the Walmarts in Chicago are more on the edges of the city, lending themselves to driving.

It would be interesting to hear how the companies themselves, local residents, and the city describe how the big box experience changes in an urban area. This would be ripe for participant observation as the store opens and both changes and is influenced by the surrounding urban neighborhood.

Kotkin splits US into 10 areas, predicts which ones will grow

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Joel Kotkin takes a look at which areas of the United States will grow in the next decade. Here are a few of his predictions:

Over the next decade, the Left Coast should maintain its momentum, but ultimately it faces a Northeast-like future, with a slowing rate of population growth. High housing prices, particularly in the Bay Area, are transforming it into something of a gated community, largely out of reach to new middle-class families. The density-centric land use policies that have helped drive up Bay Area prices are also increasingly evident in places like Portland and Seattle. The Left Coast has the smallest percentage of residents under 5 outside the Great Lakes and the Northeast, suggesting that a “demographic winter” may arrive there sooner than some might suspect…

The vast region from Texas to Montana has often been written off as “flyover country.” But in the past decade, no nation in America has displayed greater economic dynamism. Since the recession, it has posted the second-fastest job growth rate in the U.S., after the Inland West, and last year it led the country in employment growth. The Dakotas, Nebraska, Oklahoma and Kansas all regularly register among the lowest unemployment rates in the country.

The good times on the Plains are largely due to the new energy boom, which has been driven by a series of major shale finds: the Bakken formation in North Dakota, as well as the Barnett and Permian in Texas. The region’s agricultural sector has also benefited from soaring demand in developing countries…

Once a sleepy, semitropical backwater, the Third Coast, which stretches along the Gulf of Mexico from south Texas to western Florida, has come out of the recession stronger than virtually any other region. Since 2001, its job base has expanded 7%, and it is projected to grow another 18% the coming decade…

More babies and the migration of families, including immigrants, to this low-cost region suggest an even larger political footprint for the Southeast in the decades ahead. Population growth has been more than twice as fast since 2001 as in the Northeast, a trend that is projected continue in the next decade. The region looks set to become smarter, more urban and cosmopolitan, and perhaps a bit less conservative.

Common factors in the analysis: demographics, particularly the influence of immigration; which industries are booming, with an emphasis on technology and oil/gas; and government restrictions/debt. These are common themes for Kotkin. Two quick thoughts:

1. It would be interesting to see how Kotkin’s predictions hold up. One smart move was to restrict this to ten years out which limits some of the unpredictability. But, predictions by experts are notoriously wrong.

2. The prognosis for the South, Southwest, Plains, and some of the West is much better than the big city Midwest or the Northeast. There has been quite a shift to these areas in recent decades in the United States but are we close to a point where these areas take over? Just how much staying power does a region like New York have – would it take decades to overcome its inertia?

Chicago looking for redesigns for 49 public spaces

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The City of Chicago invites proposals for redesigning 49 public spaces:

Chicago is pulling the next lever in its multi-part bike & pedestrian improvement project, dubbed Make Way For People. After beginning to address critical shortfalls in bicycling infrastructure, easing hazardous pedestrian crossings, and adding new spaces for spontaneous leisure, the City is looking to imaginatively rebuild its 49 public plazas. A Request for Proposals (RFP) has gone out, reports Streetsblog Chicago, and will reward one private entity with a contract to tackle at least 30 of the citywide locations. The project will build on modest interventions like CDOT’s “People Spots” and Architecture for Humanity’s ACTIVATE! design competition that spawned design interventions to a handful of neglected public spaces.

Unlike “People Spots”, “People Plazas” will work with existing gathering spots— spots that could generally use sprucing up, livening up, and year-round attractions. CDOT Project Director Janet Attarian tells Streetsblog’s John Greenfield she suspects the RFP will be most interesting to nonprofit groups and that awarding the contract in bulk will ensure lesser spaces in less desirable neighborhoods don’t get short shrift in the bidding. According to the RFP, the city will give $50,000 in seed money in the first year of the contract to help attract cultural programming to the plazas, with ongoing revenue available through advertising, retail, and grant opportunities. Existing positive activities must be retained (i.e. farmers market) and, obviously, the contractor has to have some maintenance know-how. Proposals must reach CDOT by Monday, September 30.

This sounds like it has the potential to be an exciting program, giving groups with closer connections to neighborhoods the ability to develop spaces that can enhance social life. However, I wonder what kind of groups would have the ability to submit proposals and then carry them out over an extended period of time.

Additionally, this sounds like it be an interesting “natural experiment” by looking at the outcomes for these different public spaces given the different organizers as well as demographics around the spaces.

Restricting McMansions, aka “White Whales”

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This story of trying to change zoning regulations to avoid teardown McMansions is fairly standard – but it also includes a new name for McMansions: “white whales.”

Residents in East Rockville are considering creating what’s known as a neighborhood conservation district in an effort to curb mansionization—the proliferation of large homes that seem like mismatches among the smaller ones that surround them, including an East Rockville residence derisively referred to as “The White Whale.”…

East Rockville is mostly comprised of single-family homes built in the early 1940s and during the World War II housing boom. But despite the city’s revised zoning code in 2009, developers have still been able to build massive residences—many of them functioning as rentals for multiple families—that just seem out of character in East Rockville, neighbors complain.

East Rockville residents have publicly voiced their concerns over preserving the integrity of their neighborhood, having testified at Rockville City Council meetings and writing letters to city officials…

Meanwhile, the city council has been discussing the problem, but can’t seem to agree on how to go about fixing it—preserving property owner’s rights, attempting to legislate taste, and other unintended consequences are only a few of the issues complicating things.

I have not heard this term for McMansions before. The photo accompanying the story portrays one of these “white whales” and it is indeed large. But, there are a couple of issues here:

1. Size is one issue. Lots of teardown controversies involve this. From this one photo, it looks like this is a large house and it also is large compared to nearby homes.

2. A second issue is the actual look of the house. When using white to describe the home, I presume critics are referring to the rather bland front dominated by white siding. Building guidelines can suggest certain styles and design elements. Interestingly, one critique of McMansions is that they their exteriors are too odd, perhaps mixing architectural styles, perhaps utilizing features and materials not found in the region, perhaps having ill-proportioned features. Neighborhoods likely want to set an “appropriate” design that isn’t too outlandish but isn’t that bland.

If you won’t want your neighbors to build a “white whale,” what color plus animal name would you prefer they build? We need a catchy alternative…

Another note: the Urban Dictionary has several definitions for “white whale.” The first doesn’t necessarily cast the McMansion opponents in the most positive light: “Something you obsess over to the point that it nearly or completely destroys you. An obsession that becomes your ultimate goal in life; one that your life now completely encircles and defines you.” The second might be more to McMansion opponents’ liking: “Term used to describe an opponent/nemesis who is extremely difficult to defeat. The term can also apply to miscellaneous games or events which are difficult to master.”

 

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Mapping England’s emotional mood in real-time

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A group of researchers have developed a real-time map of England’s emotions based on Twitter:

The team, from Loughborough University, say it can scan up to 2,000 tweets a second and rate them for expressions of one of eight human emotions…

The team, from the university’s new Centre for Information Management, say the system can extract a direct expression of anger, disgust, fear, happiness, sadness, surprise, shame and confusion from each tweet.

The academics said that using the Emotive software to geographically evaluate any mass mood could help police to track potential criminal behaviour or threats to public safety.

It may be able to guide national policy on the best way to react to major incidents, they added.

There have been several projects like this in recent years. The algorithms to sort out all of the language must be intricate. But, I’m skeptical about two things. One is a sampling issue. Just how many people in England are using Twitter? In the United States, the figures about regular Twitter users are still quite low. You can map the moods of Twitter users but this doesn’t necessarily represent the larger population. The Twitter population probably trends younger. At the same time, responding to vocal responses on the web or on Twitter might be effective for public relations. A second issue is how exactly tracking moods could be used to help police. So police will be sent to places that show high concentrations of disgust or anger and pay less attention to places experiencing happiness? Or, such a system might alert police to trouble spots? I suspect it is more complicated than this yet I imagine such talk could make Twitter users nervous about how exactly their moods will be analyzed.