Monthly Archives: May 2012

Diamond grinding to reduce highway noise

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One Lake County community is paying out of its own pocket to reduce noise on I-294 by diamond grinding the road:

The village [of Green Oak] will pay nearly $338,000 for a process called diamond grinding to hopefully reduce the racket along that stretch of road.

“The idea here was to grind it and produce a quieter pavement and pavement noise in the lower frequency range so it wasn’t so obnoxious,” Village Engineer Bill Rickert said.

That sound also described as “singing” by Rickert spurred several complaints after the tollway widening was completed about three years ago, and sent village leaders on a quest for a solution…

In the simplest terms, the concrete road surface had been tined or grooved perpendicular to the road surface, he said. The diamond grinding changed the grooves to run parallel, evoking “more of a corduroy-type feel,” and theoretically producing lower noise levels in frequencies less noticeable to the human ear.

While diamond grinding emerged as the village’s proposed solution, it isn’t used by the tollway as a noise reducing technique.

It would be interesting to see how this solution compares with building sound barriers – is diamond grinding cheaper or more effective? If this is an effective technique and people agree about this, why doesn’t the Tollway use it?

I have had some more interest in this lately because our neighborhood borders a busy arterial road that is being expanded from 2 to 4 lanes. Because of this, sound barriers have been installed. I don’t think they look too bad with a sort of faux beige brick look. Granted, I don’t live in a house that backs up to these walls and I assume there is a price (in housing value) to pay for backing up to these walls. Going further, at night we can faintly hear the nearby highway that is 1.5 miles away – it is a sort of background noise. But having grown up close to a railroad track which produced more sporadic but louder noise, can’t you simply get used to these things? Perhaps the difference here is that people in these neighborhoods near the Tri-State haven’t had this level of noise until the highway was expanded.

Walmart increases nearby home values

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The Atlantic reports on a University of Chicago working paper (subscription req.) that having a Walmart nearby noticeably affects housing prices:

Home values within a half mile of a new store got a 2 and 3 percent boost. Within a mile, the store pushed up values 1 to 2 percent. That translated to a $7,000 average bump for nearby homes and $4,000 for houses a little further away.

Unfortunately, I don’t have a subscription and thus cannot look at the paper directly, but I have a few questions:

1.  Do other big-box retailers (e.g., Target) similarly boost nearby housing prices?
1a.  Is Walmart’s boost larger?

2.  Is there a corresponding drop in housing prices if/when a particular Walmart closes (often only to reopen at a new location a few miles away)?
2a.  If yes, is the drop greater than the boost?

Upcoming film about a unconstructed 90,000 square foot mansion

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I’ve seen several references to the film The Queen of Versailles which comes out later this summer. Here is what the movie is about:

A Florida real-estate tycoon and his appealing, immensely flawed wife try to build the country’s biggest McMansion in photographer-turned-filmmaker Lauren Greenfield’s documentary, which is stranger than any work of fiction. Surrounded by controversy since well before its Sundance premiere (when subject David Siegel tried to sue the festival), “Queen of Versailles” veers from profound human compassion to domestic horror as Siegel’s wife Jackie wanders through her enormous but trashed home scraping dog crap off the carpets. It’s like a Theodore Dreiser novel for our time, infused with the vivid, vulgar spirit of reality TV. (Opens in theaters July 20; VOD release is likely but has not been announced.)

There is one problem with this: the home at the center of this film is not just a regular American McMansion.

At 90,000 square feet, it will be America’s largest single residence, boasting ten kitchens, a private ice-skating rink, and enough tacky antiques to make Michael Jackson blush. It’s telling that while the couple’s dream house was inspired by the famed palace, it was most directly modeled on a Las Vegas theme-park imitation of French grandeur.

A home that is 90,000 square feet is far beyond a McMansion. There are not many homes in the United States that are 90,000 square feet so it is difficult to argue that this home is mass produced. The home is named “Versailles,” referring not to some builder’s model but rather the well-known French palace. The home may be tacky and not have a lot of architectural merit but this is home is way beyond the size of anything that can be reasonably called a McMansion.

In reading several early reviews of this film, it seems like critics think this film is about more than just the vanity of a few wealthy people: the uncompleted mansion serves as a metaphor for the excesses of the early 2000s.

Chicago region home prices back to April 2000 levels

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Data from the S&P/Case-Shiller suggest that Chicago area home prices have returned to levels from early 2000:

Home prices in the Chicago area hit a new post-housing crisis low in March, falling to levels not seen locally since April 2000, according to the widely watched S&P/Case-Shiller home price index, released Tuesday.

With the most recent decline, average  home prices in the Chicago area have fallen 39 percent since they peaked in September 2006, according to the index…

Much of the pricing pressure was on homes that sold for less than $139,182, as the average selling prices for those properties in March fell 3.4 percent from February and were down 9 percent from a year ago and reflects the impact of distressed homes on the market. That puts the pricing environment for lower-priced homes akin to where it was in April 1995…

“We’re beginning to see more stability in the overall numbers,” Blitzer said. “The housing situation in the United States, while certainly not booming, is seeing some stability and possibly some gains going forward. Prices will be the last thing to go up.”

As the article notes, economist Robert Shiller has expressed skepticism that housing prices will rise anytime soon.

While there may be a lot of worry about foreclosures (and Illinois ranks poorly here as well), the issue of depressed housing prices might linger even longer. The wealth that people expected to incur through their house has, on average, been reduced to 2000 levels. Another way to interpret the data above is that on average, people who have bought a home since April 2000 can’t expect to make any money on selling their home now. This could limit people’s abilities to move and purchase homes as well as change how they think about homebuying.

 Zillow just put together a new map of the United States based on what % of homeowners are underwater. The map has more people in the red than one might hope:

The real estate information website Zillow has compiled its data from the first quarter of 2012 to build this map, showing just how much negative equity there is among the homes in many counties. Deep red along the west coast, throughout Florida and in the Great Lakes region serve as a harsh reminder of the chronic troubles these areas are still struggling to control…

In the worst hit counties, more than half of the homes are underwater. Clark County, Nevada – home to Las Vegas – is among those in the unfortunate top 1 percent, with 71 percent of homes underwater. For the vast majority of homes here, the amount owed is more than 200 percent of the value. Clayton County, Georgia, part of metro Atlanta, has an astounding 85 percent of its homes underwater.

This article from 24/7 Wall St. breaks Zillow data down even further to name the ten cities with the highest rates of homes with negative equity. Las Vegas, Reno, and Bakersfield are the worst performing cities in the country, with rates above 60 percent.

While the situation is certainly bad in many, many parts of the country, four-fifths of all counties in America have fewer than 35 percent of their homes underwater, according to the map. But it’s still a widespread problem – and one that seems to be growing. More than 31 percent of all homes in the country are underwater, according to these first quarter 2012 numbers from Zillow, a jump from the 28 percent the company noted a year earlier and the 22 percent the year before that.

It could take a long time to reverse these trends.

TV programmer: Real Housewives series is “sociology of the rich”

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The programmer behind the Real Housewives shows suggests they might have some sociological value:

Andy Cohen should know as the programmer behind “Top Chef,” the various “Real Housewives” series and his own “Watch What Happens Live.” Cohen, a former producer at CBS News, weighed in on the Bravo success story in an interview with Howard Kurtz on CNN’s “Reliable Sources” Sunday morning.

In picking programs, Cohen said he looks for “something that hasn’t been done before” and a personality different from what viewers have seen…

“In the case of ‘The Housewives,’ I call the ‘Housewives’ sociology of the rich,” Cohen told Kurtz. “I think it’s just fun to watch. It’s guilt-free gossiping that you can have. It’s like the modern-day soap opera, in my mind.”

I would be interested to have a sociologist chime in about whether shows like these reflect an increased interest in the lives of the wealthy and famous say compared to thirty, fifty, or one hundred years ago. When sociological studies like The Gold Coast and the Slum were written in the late 1920s, lower- or working-class residents may have known about the rich or run into them occasionally (and part of the intrigue of this study is that the wealthiest and poorest residents of Chicago lived within blocks of each other) but did they have the kind of vicarious interest in the rich that TV shows today try to promote?

Also: I imagine there are plenty of wealthy people who would argue that these shows only display a small segment of the wealthy lifestyle. What about shows about the millionaires next door or about people who scrimp and save to get their money? These shows seem to encourage people to live a more “wealthy lifestyle,” combining spending (conspicuous consumption, anyone?) and celebrity status.

A second note: it is hard to argue that an edited show about the wealth, a modern-day soap opera, can impart a whole lot about reality or a sociological understanding of the world. It can tell you something…but perhaps more about what Americans like in entertainment than about how people really live.

Delta shows you how your airline luggage travels

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Delta Airlines put together an interesting 2:34 video about what happens to your luggage from check-in to coming off the luggage belt at your destination.

I know plenty of people have lost luggage (it has happened once to me as well, delivered by UPS two days later) but this video brought an idea to mind: large systems like this which require a large number of employees and machines across cities around the world might also be considered quite efficient and remarkable. Perhaps we could argue about what constitutes an acceptable rate of error or delivering luggage to your final destination and weigh this against alternative forms of delivery such as paying to ship the luggage by private companies. More broadly, we could ask whether it is fair or realistic to expect mechanized/large-scale systems of today to be perfect 100% of the time (or perhaps we don’t mind until it is our luggage that is lost). Indeed, the luggage delivery systems of today for the tens of millions of airline passengers might have been unimaginable even 60 years ago.

Could someone design a better and cheaper system?

Also: is an app for tracking your luggage simply a means to help reassure passengers and to show them that most of their luggage does indeed make it to the right place?

Weeds, lawns, and “turfgrass subjects”

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A review of a new book about weeds mentions the work of a geographer who calls lawn-happy Americans “turfgrass subjects”:

Mabey shows how attitudes to “weeds” reveals so much about human society, most notably perhaps in the nightmare of the American lawn – a toxic monocultural sward, saturated with chemical weedkiller and fertilser (more used per acre than on any crop) that occupies from 50,000 square miles (about the size of Iowa) and on which more than $30billion a year is spent. Mabey explains the origins of suburbia with Frederick Law Olmsted, a landscape architect established one of the first planned communities in 1868, laying out rules saying that each house had to be set 30 feet back from the road, and any exterior divisions were banned. Mabey notes: “The sociologist Paul Robbins has coined a term for the suburban victims of the combined pressures of national tradition, neighbourly prissiness, commercial gardening pressures, and the insistent identity, the integrity, of the lawn itself. He calls them ‘Turfgrass Subjects’.” Mabey notes how this is taken to extremes in Houston, Texas, where by-laws make any weeds “illegal”, defined as “‘any uncultivated vegetable growth taller than nine inches’ – which makes about two-thirds of the entire United States’ indigenous flora illegal in a Houston yard”.

We subject ourselves to tending our lawns, through thick and thin. Is it all really about feeling like we have some mastery over (a very very small piece) of nature?

It would be interesting to consider further the war metaphor that is used regarding weeds: we wage war on weeds in order to emerge victorious. In the long run, can we win the war on weeds? This may not really matter for our lawns but it could have a huge effect on agriculture…

Robbins has a full book about the lawn: Lawn People: How Grasses, Weeds, and Chemicals Make Us Who We Are.

Urban differences: Portland, Oregon has only one doorman

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Here is an example of differences between cities: New York City is well known for its doormen but Portland, Oregon has only one.

[Richard] Littledyke, a tall, fair-skinned blonde of 28 years, has held doors open for Burlington residents for eight months. The previous doorman, Auggie Contreras, reluctantly vacated the position for a higher-paying bellhop gig at the Nines Hotel…

The Burlington Tower is Portland’s only residential building with a doorman. Other apartments have concierges and several hotels have bellhops at the front doors, but Littledyke is unique. Visitors to the area often use him as a landmark to find their parked car…

Both men said Portland’s lack of doormen probably comes down to the city’s size, age and housing stock.

In Portland, where far fewer people are cramped into limited space, people with extra money achieve status with a nice house and a well-groomed yard, Bearman says. New York’s cramped real estate requires doormen to serve the same purpose.

“They are tied into how to create elegance and luxury in apartment buildings, where space is limited,” Bearman says. “They also provide a bridge between the outside and the inside of a building that a yard serves to provide in a house.”

The explanation: when you have higher residential densities, more high-rise apartments or condos, and wealthier residents, doormen become more common as residents want to clearly signal their status and keep the outside world beyond the doors of their building. The suggestion here is that certain kinds of buildings lead to having doormen – I wonder if this is necessarily the case. Could there also be regional differences, places where it might be considered gauche to have a doorman? The article suggests several apartment buildings in Portland have concierges – how does this differ in the eyes of residents and others?

New goal in Chicago: no traffic deaths in ten years

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The city of Chicago recently set an ambitious goal: there should be no traffic deaths in ten years.

The city of Chicago’s transportation department, headed by commissioner Gabe Klein, has released a new “action agenda” called “Chicago Forward.” It contains a goal that, as far as I know, has never to date been explicitly embraced by a major United States city:

Eliminate all pedestrian, bicycle, and overall traffic crash fatalities within 10 years…

[T]he city will be taking a multifaceted approach to traffic safety that includes engineering local streets to reduce car speeds; improving pedestrian and bike facilities; education; better data collection and evaluation; and increasing enforcement. Mayor Rahm Emanuel is strongly behind such measures even when they are politically unpopular, as was the case with a controversial speed camera bill that the mayor pushed through the City Council last month…

The idea of aiming for zero traffic deaths may be novel in the United States, but in Sweden, it’s national policy. In 1997, the Swedish Parliament passed the Vision Zero Initiative, with the “ultimate target of no deaths or serious injuries on Sweden’s roads.” Currently, the plan calls for an interim goal of reducing deaths and injuries to 50 percent of 2007 figures by 2020.

Has it worked? Zero is still some ways off – 2050 is the target date now — but the absolute number of traffic fatalities in Sweden continues to fall even as traffic is on the rise. And compared to the United States, their numbers are impressive: In 2009, Sweden had 4.3 traffic deaths per 100,000 population, while the United States had 12.3 (the European Union average was 11 in 2007).

I will be curious to see how this all works. Transforming a major city like Chicago in a short amount of time is difficult. Like most American cities, Chicago has sacrificed much for the automobile and even with higher gas prices and more calls for walkable neighborhoods, making quick changes to the transportation grid will require a lot of work. Additionally, traffic safety has a lot of moving parts, such as safety standards for cars, over which Chicago has little control.

I like the comparison to the efforts in Sweden. However, what happens when the target date approaches and the number has not dropped to zero – does someone get blamed, fired, or what? This is a laudable goal but perhaps this could turn into another public war: the war on traffic deaths!

It is hard to argue with safety. However, I imagine someone will raise a question about the possible costs of these measures…what will this war on traffic deaths cost? I also imagine someone could argue that boosting Chicago’s walkability and general pedestrian friendliness would lead to a better quality of life (as well as higher housing values), possibly making Chicago more appealing to younger and older generations who want to live in more urban neighborhoods.

Most common college grade: A or A-

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Here is some data about college grades and how they have increased to a modal letter grade of an A:

In 1960, the average undergraduate grade awarded in the College of Liberal Arts at the University of Minnesota was 2.27 on a four-point scale.  In other words, the average letter grade at the University of Minnesota in the early 1960s was about a C+, and that was consistent with average grades at other colleges and universities in that era.  In fact, that average grade of C+ (2.30-2.35 on a 4-point scale) had been pretty stable at America’s colleges going all the way back to the 1920s (see chart above from GradeInflation.com, a website maintained by Stuart Rojstaczer, a retired Duke University professor who has tirelessly crusaded for several decades against “grade inflation” at U.S. universities). By 2006, the average GPA at public universities in the U.S. had risen to 3.01 and at private universities to 3.30.  That means that the average GPA at public universities in 2006 was equivalent to a letter grade of B, and at private universities a B+, and it’s likely that grades and GPAs have continued to inflate over the last six years…
National studies and surveys suggest that college students now get more A’s than any other grade even though they spend less time studying. Cramer’s solution — to tack onto every transcript the percentage of students that also got that grade — has split the faculty and highlighted how tricky it can be to define, much less combat, grade inflation.”…
Last year, Professor Rojstaczer and co-author Christopher Healy published a research article in the Teachers College Record titled “Where A Is Ordinary: The Evolution of American College and University Grading, 1940–2009.” The main conclusion of the paper appears below (emphasis added), and is illustrated by the chart below showing the rising share of A letter grades over time at American colleges, from 15% in 1940 to 43% by 2008. Starting in about 1998, the letter grade A became the most common college grade.
“Conclusion: Across a wide range of schools, As represent 43% of all letter grades, an increase of 28 percentage points since 1960 and 12 percentage points since 1988. Ds and Fs total typically less than 10% of all letter grades. Private colleges and universities give, on average, significantly more As and Bs combined than public institutions with equal student selectivity. Southern schools grade more harshly than those in other regions, and science and engineering-focused schools grade more stringently than those emphasizing the liberal arts. It is likely that at many selective and highly selective schools, undergraduate GPAs are now so saturated at the high end that they have little use as a motivator of students and as an evaluation tool for graduate and professional schools and employers.”

This is quite an increase, particularly as more Americans started attending college in this period. What does this do in the long run for credentialism – the idea that employers and others can get an idea about the competence, skills, and work ethic of people by knowing whether they have a college degree or not. Are employers and students looking for ways to differentiate between students?

Seeing the data by discipline (and not just broad categories) would be particularly fascinating.

Something to note about grade data: good grades can only bring up the average so much since they have a max of 4.0. So the rising average is partly due to more good grades being handed out but also partly due to fewer bad grades (which would have a greater effect on the average) being assigned. Note the last chart: about 78% of grades are either As or Bs, suggesting that students have to work at getting grades below this.

h/t Instapundit