Category Archives: Places

Social network analysis of Chicago violence show differences in risk, differences compared to Boston

Posted on by

Read a summary of recent research by sociologist Andrew Papachristos about social networks and violence in Chicago:

Take, for instance, a 2013 paper, published with Yale colleague Christopher Wilderman in the American Journal of Public Health. It’s set in a community in Chicago with a litany of familar risk factors: half of all households were led by a single female; 43 percent of the 82,000 residents had less than a high-school education; a third of households were below the poverty line. And the homicide rate, over the five years of the study, was 55.2 per 100,000, about four times the citywide rate (Daniel Hertz’s maps of homicide rates by police district are a good way of putting that in context; it’s high.)…

Simply being arrested during this period increases the aggregate homicide rate by nearly 50%, but being in a network component with a homicide victim increases the homicide rate by a staggering 900% (from 55.2 to 554.1)…

Even in this extremely abstracted form, from a third paper by Papachristos you can see a remarkable contrast between gang violence in Chicago and Boston. Each node is a gang; each line is a homicide or shooting; each bidirectional line is a reciprocal homicide…

Chicago’s social network of homicide is a knotty mess: 98 percent of all Chicago gangs were connected within the city’s homicide network during that timeframe, 32 percent higher than Boston’s shooting network. The network density of black gangs in Chicago is particularly intense, 30 percent compared to 4.5 percent for Latino gangs…

And a place to start for gathering more data—as Papachristos points out, his analysis is limited to people doing bad things. Robert Sampson, the Harvard (by way of Chicago) sociologist, has done pioneering work, most recently in his book Great American City, showing how positive social networks reduce crime and improve public-health outcomes in socially-organized neighborhoods like Chatham. Another possible implication is figuring out what kinds of networks “inoculate” people from violence.

Looks like a good summary of some interesting research. On one hand, this should be reassuring to the public: the perception is that crime rates in Chicago are out of control (even as they have declined in Chicago over the years and in many American cities) yet much of the violent crime is in the hands of a relatively small group of people. On the other hand, the density of violence in Chicago suggests there are some serious issues in particular social interactions and locations that are not easy to solve.

I’m also reminded of the work of sociologist Sudhir Venkatesh who has argued in several books that gangs in Chicago as well as more informal black market networks might be considered “efficient” or “rational” in what they do because of a lack of legitimate opportunities in poor neighborhoods. Whereas legal businesses might seek the best way to make profits, social networks in disadvantaged neighborhoods make do with what they have, even if the means are not legitimate. This doesn’t condone violence or other illegal behavior but Venkatesh’s work shows these aren’t haphazard or chaotic social networks and interactions.

Once residents become more “architecturally aware,” they won’t choose McMansions

Posted on by

An Australian architect says more residents in Perth would avoid McMansions once they become “architecturally aware”:

Designer homes are popping up across Perth as the city becomes more ‘architecturally’ conscious.

Aspects such as strong horizontal lines, cut outs and bold rectangular features are increasingly popular in new residential homes.

As Perth’s architectural style grows up, McMansions will be out and clean, simple modernist designs will be in, according to David Karotkin, the WA President of the Australian Institute of Architects…

“In more recent years there has been an increased awareness of architecture in Perth,” Mr Karotkin said…

“There’s awareness about the importance of the designs and the buildings we live in, work in and play in – it’s all architecture.”

There are several ways such statements might be interpreted:

1. Perth residents are finally becoming knowledgeable about architecture and are rejecting architecturally-deficient McMansions. There is an element of snobbery here: McMansions are for the less knowledgeable while the more educated pick homes designed by architects.

2. Perth is developing its own architectural style. Building styles might be drawn from other cities or countries but a new Perth School might be emerging. Having common design, particularly if it is recognized by outsiders, can become a mark of pride.

3. Architects are looking to increase the number of homes they design. In the United States, most homes are designed by builders and architects have just a small slice of the market. Educating people about the benefits of designed homes means more money.

I wonder what this architect would think if there are still some people who choose McMansions even with higher levels of education.

Panel: keep Washington D.C. building height restrictions, preserving height to street-width ratios

Posted on by

A panel recently suggested height restrictions for buildings should remain in the older areas of Washington D.C.:

Building heights in the 68-square-mile (176-square-km) area are determined by the width of the street on which a structure fronts. The maximum height is 130 feet (40 meters), with some exceptions.The result is a distinctive low-lying skyline that showcases historic monuments and distinctive landmarks such as the U.S. Capitol, National Cathedral and the Old Post Office. The tallest structure is the Washington Monument, which stands at the center of the Mall and is about 555 feet (169 meters) high.

The National Capital Planning Commission recommended leaving intact the federal height rules for the part laid out in the 18th century. The area of wide avenues and traffic circles is home to the White House, National Mall and museums.

The commission left open the possibility that buildings in the area developed beyond the city’s original layout can be higher – but only after additional study and as long as they did not interfere with federal interests.

Another article I saw about this suggested this would restrict growth in Washington, a city whose suburban counties are growing in both population and wealth. Without opportunities for taller buildings in the city, money that could go to the city through property and sales taxes will instead go elsewhere.

But, taller buildings in or near the National Mall would change it quite a bit. These height restrictions are reminiscent of a more traditional kind of architecture. For example, New Urbanists often suggest linking building heights to a particular ratio compared to the width of the streets to create a more comfortable feeling. Contrast the National Mall with the experience of midtown Manhattan, a place busy and interesting but also full of concrete canyons and structures that tower over anything going on in the streets. These two areas serve different purposes but the experiences are quite different.

The Pyongyang Metro

Posted on by

What does the subway look like in North Korea? See pictures here.

The underground stations are ornate but dimly lit: patrons squint to read posted newspapers while patriotic music echoes faintly across the stone floor. Most of the 16 public stations (there are rumors of secret, government-use-only networks) were built in the 1970s, but the most grandiose halls – Puhoong and Yonggwang – were constructed in 1987. Mosaics and metallic reliefs extolling the virtues of North Korean workers and landscapes line the walls.

The subway cars were acquired from Germany, and despite a green and red makeover, the remnant graffiti scratched into windows and paneling belies their past lives. And as with every other public and private space throughout the country, portraits of past leaders Kim Il-Sung and Kim Jong-Il look down from the ends of each car, smiling and ever-present.

It would be interesting to hear more about the number of people who use this system and what parts of the city are served. In theory, shouldn’t more socialistic/totalitarian states have better mass transit systems? Countries that emphasize individualism and consumerism, like the United States, might be more open to transportation options, like cars, that support or enable these values. But, countries that have more communal or equality rhetoric could pour more resources into methods that would help move great numbers of people efficiently.

Naperville to commemorate deadly 1946 train collision

Posted on by

Naperville likes its public art so it is not surprising to see that a memorial for a deadly 1946 train crash is in the planning stage:

In 1946, two trains crashed at the Naperville station and killed 45 people, including some military personnel returning from World War II…

Plans are moving forward to place a sculpture as a memorial near the site of the train wreck. The project would be installed on the day after the 68th anniversary of the April 25 crash. The memorial would honor those who died and recognize heroic rescue efforts on that Thursday afternoon in 1946 when the Exposition Flyer, a passenger train heading west from Chicago, plowed into the Advance Flyer, which had made an unscheduled stop at the Naperville station to check mechanical problems.

About 125 people were injured in the crash.

“It’s a story that I bet 95 percent of the people in Naperville don’t know about,” said W. Brand Bobosky, president of Century Walk Corp., a public-private partnership that has installed dozens of sculptures related to the city’s history in and around downtown.

This was a large incident, even among a metropolitan region full of railroad lines (which leads to some smaller accidents), lots of freight moving through the area, and high commuter counts in places like Naperville. To some degree, perhaps it is remarkable train crashes don’t happen more often given the number of at-grade crossings as well as the number of trains.

The majority of the statues and public art in Naperville celebrate important figures, reinforcing the narrative of the suburb’s impressive community spirit as well as it is remarkable growth. At the same time, there is currently a 9/11 memorial along the south side of the Riverwalk. This new memorial might be the first to commemorate tragedy that occurred within Napeville itself. Is building a memorial a signal of the maturity of a suburb (that may or may not be related to how much time has passed or the size of the community)?

Aconsequence of this crash, according to Wikipedia, was that it contributed to lower train speeds in the United States:

This crash is a major reason why most passenger trains in the United States only travel at a speed limit of 79 mph (127 km/h) or below.[2][3] The CB&Q, Milwaukee Road, and Illinois Central were among railroads in the region running passenger trains at up to and above 100 miles per hour (160 km/h) in the 1930s and 1940s. The Interstate Commerce Commission ruled in 1951 that trains traveling faster must have “an automatic cab signal, automatic train stop or automatic train control system”,[4][5] expensive technology that was implemented on some lines in the region, but has since been mostly removed.

An interesting legacy.

Is there an invisible wall keeping $1 million homes east of Western Avenue in Chicago?

Posted on by

One person in Chicago real estate argues $1 million homes on Chicago’s North Side stay east of Western Avenue.

It’s as if there is an invisible wall running through the middle of Chicago, along Western Avenue all the way south of Montrose. When buyers of million dollar homes specify their search criteria they will often specify that they want to stay east of Western Avenue – or if they specify Ukrainian Village, Bucktown, Wicker Park, Roscoe Village, or St. Ben’s those neighborhoods technically stop at Western Avenue so again you are staying east of Western. And it almost doesn’t matter anyway because over the last 7 years there have been very few homes above $1 MM for sale west of Western anyway as you can see in the map below. It’s pretty dramatic isn’t it?

What could be behind this?

Well, for one you are typically getting further away from public transportation options as you move west. But then again public transportation isn’t really that much more accessible just east of Western than it is just west of Western. If you can’t walk to the el stop in 10 minutes in January you may not feel like you have good access to public transportation regardless of which side of Western you live on.

The other thing that happens as you cross Western Avenue is that you cross into a few lower income census tracts. For example if you look at the heat map from RichBlocksPoorBlocks.com you will see that there are are a few sections of Western Avenue where the median household income drops pretty dramatically as you cross the street. In the map below as the color transitions to darker green median household income goes up and as it transitions to darker red it goes down. From Fullerton to Armitage the median income is $66K on the east side of the street but $35K on the west side of the street. And from Armitage to Bloomingdale it’s $107K vs. $66K. And then from Division to Chicago it’s $67K vs. $42K.

Might this change in the future?

There is no question that eventually the area west of Western will become populated with million dollar plus homes but at that point the disparity between the east and west sides of the street may persist and the east side may just be populated with homes priced well above $1 MM. And, regardless, it looks like that day is still several years into the future. In the meantime, if you are willing to be a pioneer you can definitely find cheaper living just a couple of blocks further west.

My interpretation: neighborhoods west of Western Avenue aren’t trendy or gentrifying yet and have different demographics. In other words, there isn’t demand yet among the creative class or young professionals for nicer housing west of Western.

This could lead to some discussion about the limits of gentrification on Chicago’s north side. Just how much can it expand? What happens when it moves out of hipper neighborhoods and comes up against more lower-class or non-white neighborhoods? Right now, there are some gentrifiers who want to live on that edge between the expensive homes and poorer neighborhoods, places they might consider more gritty or authentic. But, would large numbers of people move further west? And are there enough of them? (This, of course, doesn’t even consider the negative effects of gentrification which include making housing more unaffordable, a problem in a region that needs much more affordable housing, and white residents pushing out non-white residents.)

The Economist calls for more gov’t power to construct needed mass transit in London

Posted on by

London needs more mass transit capacity – and The Economist argues governmental bodies need more power to expand the system.

Whereas the number of people driving in London is falling, Tube and bus use is surging. Each day 3.7m people use the Underground while 6.4m take a bus. Once-quiet routes are crammed. The London Overground, a rebranded and improved railway line, carries 120m passengers a year, up from just 33m in 2008. The Docklands Light Railway carried 66m passengers in 2008. It now carries 100m…

The changing character of the capital makes things trickier. Much of the city’s population growth over the past decade has been in east London, which is poorly served by the Tube. Parts of inner London such as Kensington and Chelsea have lost people. In future, thinks Sir Peter Hendy, TfL’s boss, most population growth will be in the suburbs. Yet jobs are becoming increasingly clustered in the middle—in the City, Canary Wharf and the West End. “If you’re an insurance company, you don’t look at a map and settle on Enfield,” says Sir Peter. London will not just have more people: it will have more people travelling farther to their jobs…

Grand projects help, at huge cost. But there is a simpler, cheaper way of adding capacity, insists Sir Peter: make much better use of London’s huge existing commuter railway network. Which means giving him more control…

London’s transport could be improved even more if the mayor were given control over local taxes. Crossrail is being financed through a combination of government cash, fares and an increase in land values. A business-rate supplement on non-domestic properties with a rateable value of £55,000 ($80,000) or more has supplied £4 billion for the project. This arrangement could be extended for Crossrail 2, and more widely.

This is an interesting look at how London is going about tackling an issue many cities are facing: how to provide more mass transit amidst growing populations. Additionally, as the article notes, numerous interests may have opposition if lines are not placed to their liking or financial pressure falls on them. Large infrastructure projects aren’t necessarily easy to carry out anyway and all of these projects in London will require quite a bit of power to pull off.

The fate of major world cities could depend on these projects: as they continue to grow, they simply can’t provide more roads and many places do not exactly desire more suburban communities for the wealthy (though more of this may happen, including in London). Yet, the more cities grow, the projects become more and more difficult to put together because of hearing from different groups, moving people, and paying for land and higher construction costs.

Convincing suburban drivers that downtown parking is available

Posted on by

The Chicago suburbs of Wheaton and Glen Ellyn are looking for ways to convince residents that there are plenty of parking spots in their downtowns:

For years, officials in Glen Ellyn have been hearing from residents about a lack of parking in the downtown, despite studies showing plenty of spaces available for customers…

“It dawned upon us that it isn’t a lack of parking, but addressing the perception of the lack of parking,” Glen Ellyn Police Chief Phil Norton said at a recent village meeting. “We’re going to shift our focus and start working on addressing the perception. You can go anywhere and be within a block or a block and a half of convenient parking.”…

The changes include creating 12 “Customer Only” parking spots where parking meters were removed in the Main Street and Pennsylvania lot. It also includes making the Union Pacific lot at Crescent and Main customer parking only, from 11 a.m. to 6 p.m. Mondays through Saturdays, and making Schock Square customer parking only, from 8 a.m. to 6 p.m. Mondays through Saturdays…

In Wheaton, parking was one of the issues addressed in the final draft of a downtown strategic plan and streetscape plan recently released by the city’s consultants. A parking analysis shows there is enough parking in the city’s downtown, despite a perceived parking issue reported by residents who participated in the survey, officials said.

In the plan, consultants recommended the city consider adding differentiated time limits on certain spaces such as 15 minutes, 1 hour and two hours. That will encourage employees to park in other areas and free up spaces for customers, consultants said.

It would helpful to know why exactly residents think there isn’t much parking. Is it because the parking isn’t right in front of the store? Is it because the parking is more difficult to get into, say angled or parallel parking, than a large parking lot? Is it because the streets or narrower or they can’t perceive they can walk to multiple stores? Some of these issues might seem plausible yet people are willing to endure walks in large, crowded parking lots for big box stores or malls.

The interesting thing to me is that this is a decades-long problem for these downtowns. It dates back at least to the 1950s when downtowns had to start competing with new strip malls and shopping malls which offered multiple stores as well as free parking (as opposed to having parking meters). Even though downtowns might offer plenty of stores within a short distance, I suspect suburbanites perceive that it is more congested and more difficult to get to, even before they know whether parking is available.

Another creative solution: apps or websites that display available parking spaces downtown which gives people real-time information as well as combats percetions that parking isn’t available.

Why are so many car commercials set in the Los Angeles area?

Posted on by

I’ve noticed something about car commercials lately: many of them are shot in the Los Angeles area. Here are three common scenes:

1. Driving down a few blocks of downtown Los Angeles, possibly with the Walt Disney Concert Hall in the background or in the parking garage that provides a nice overlook over the city. Even if you don’t know the concert hall by name, you may have seen this behind numerous cars:

WaltDisneyConcertHallJul12

It takes some work to block off urban streets but these few blocks of downtown get a lot of air time.

2. Driving on Highway 101 along the Pacific Coast. Think of scenes with cliffs on one side, the Pacific Ocean on the other, a sunny day, and a beautiful car driving down a narrow road over curves and with sweeping vistas.

3. Driving along Mulholland Drive with the city in the background or along a similar road in the hills north of downtown Los Angeles. One of the commercials on the air right now ends with a shot of the new car winding its way toward the Griffiths Observatory. The observatory is a nice place to explore and there are good views:

LAfromGriffithsObservatory

Overall, I suspect there is some good reason for all of this. Perhaps it to simply take advantage of all of the power and tools of Hollywood. Perhaps LA is great because of its varied landscape. Perhaps there are some tax breaks involved. However, there are plenty of other cities where this filming could take place and LA is far away from Detroit, the traditional center of American cars. At the same time, this might provide more reasons why that Super Bowl commercial about being “Imported from Detroit” received so much attention.

Architectural sociology approach to why Las Vegas residents don’t know their neighbors

Posted on by

Sociologists looking at why Las Vegas residents don’t know their neighbors explain that the design of their newer subdivisions are partly to blame:

“So that means squeezing a lot of houses into small lots, and it also means an architectural design in many cases that doesn’t facilitate the flow of people,” UNLV sociology professor Robert Futrell said.In 2010, UNLV professors conducted a survey of neighborhoods and people living throughout the Valley. They found that communities built after the construction boom of the 1990s include narrow streets, concrete walls, short driveways and few front porches. All of these things impede social interaction.

“While many developers have tried to create these master-planned communities to be high-functioning, high-interacting neighborhoods, many of them are not working that way,” Batson said.

Professors point to neighborhoods with short driveways as an example. People drive up to their homes, open the garage and drive in without talking to anyone.

The article goes on to say that residents in these communities truly do want to interact with their neighbors. But, design holds them back.

Is it completely the fault of design? The beginning of the article also notes that Las Vegas has many transient residents. If it is truly the design, we should be able to look at neighborhoods with different designs and measure higher levels of social interaction. Is this what we actually find? New Urbanists argue it is all about designing neighborhoods in a traditional way but they don’t as often bring up the data that would show the neighborhoods do what they say they should do. Other might counter that even with some better home design, people are still distracted from social interaction because of cars, air conditioning, television, the Internet, and more.

Another thought: would the residents of these new neighborhoods be willing to trade the size of their homes or the interior features of their homes for some more neighborly features?