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kottke.org posts about cities

Visualizing our world’s ever-growing urban infrastructure

Marcus Lyons

Marcus Lyons

Marcus Lyons

For his projects Exodus and Timeout, Marcus Lyon takes overhead photographs and edits them into fantastical scenes that nonetheless seem plausible. LAX isn’t that large, no waterpark in Houston has that many pools, and Dubai’s roads do not have 70+ lanes, but you kinda have to look at satellite imagery on Google Maps to verify the fabrications.


Eternal text-cities

Map of Dublin - NYPL digital collections

Sometimes, cities are not only the places where stories happen but characters in and of themselves. Here Tyler Malone explores the works of Joyce, Döblin, and Dos Passos and their city centred novels.

These three novels are modernist city novels of the interwar period that move beyond story and character to build structures and trace movements, reconstructing modern metropolises that a world war would soon change forever. Joyce, Dos Passos, and Döblin fashioned not novels but eternal text-cities in which the reader may witness, wander, get lost. […]

Cities are cement and furniture, building and bustle, things that stay still and things that move. Of course, things that stay still in a city can suddenly, and will eventually, move, grow, change, decay, disappear. Buildings crumble, stores go out of business, streets age, accumulating faultlines like faces. Things that move can and do also momentarily pause. A busker stares up at a pedestrian silhouetted by the sun, still as a statue, his last note lingering. The maelstrom of traffic often screeches to a halt.

In fact, those novels are not only city centred but text-cities in themselves:

In other words, Ulysses is not an atlas of Dublin, it is a Dublin; Berlin Alexanderplatz, likewise, is a Berlin. These are not novels; they are cities unto themselves, writ in text of stone and concrete. […]

For the reader-flâneur, linearity isn’t important; it’s about wandering through the text and seeing what one sees, letting the city speak.


Also on cities and books; Justin McGuirk reviews at length Richard Sennett’s Building and Dwelling: Ethics for the City on cities as communities, as buildings, and on his vision of open cities.

It also extends to the offices of tech giants like Google, which supply everything a neighborhood has to offer without employees needing to leave the building. Each of these is, for Sennett, a ghetto. Instead, he argues for a city that embraces difference, a place of porous membranes and spatial invitations. […] (emphasis mine)

[The book] has an almost Taoist attachment to harmony and balance. Give architects and planners too much control and the cité suffers; too much faith in the citizen and the ville withers.

(First article via @matthieudugal)


Cities flowing like liquids or organized like crystals

File this story at Citylab adjacent to concepts like complexity, scale, and fractals. It turns out—according to this research paper anyway—that cities’ heat islands function differently depending on the “texture” of the city itself.

[S]cientists know that the density of buildings, the absorption of light by those buildings, and the relative lack of vegetation in cities are major contributors to the urban heat island effect. It’s why cities like Chicago are hoping to find relief through green roofs and reflective construction materials, or through planting more trees and banning cars. In a more radical move, Los Angeles even began painting their roads white as part of Mayor Eric Garcetti’s effort to bring down the city’s temperature by just under 2 degrees over the next 20 years. […]

The difference is even starker at night: even as the temperature cools, the release of heat absorbed during the day by asphalt and densely packed buildings can make the downtown area some 20 degrees warmer in some cities.

Street Grids May Make Cities Hotter

Roland Pellenq, a senior research scientist at MIT’s Concrete Sustainability Hub, looked at city grids and the relative positions of buildings, to see if patterns emerge.

Indeed, the fingerprints of cities like Boston and Los Angeles mirror the disorderly atomic structure of liquids and glass, while the likes of Chicago and New York City, with their streets and avenues perpendicular to one another, exhibit a more orderly configuration found in crystals.

Using formulas borrowed from physics, originally developed to measure atomic interaction in condensed materials, they found that more tightly packed cities have more intense heat island effects but also:

[T]hat cities with more rigid grid-like street patterns (that is, a higher local order) tended to display a higher temperature difference between their urban and rural areas. This has to do with air flow, said Pellenq. In disorganized cities, the air tends to flow uniformly with little or no interruption. But the perpendicular streets of Chicago and the like often trap heat by disrupting that airflow.

Fascinating.


City DNA

City DNA

City DNA

City DNA

After Piet Mondrian moved to New York in 1940, his work became influenced by Manhattan’s grid system, particularly expressed in Broadway Boogie Woogie. Similarly, for his City DNA project, Xinjian Lu studied satellite maps of cities like Beijing, Athens, New York, and Los Angeles and then created these maze-like paintings that resemble the street layouts of each city. Mondrian++. Holy moly, I *love* these.

From top to bottom, Lu’s paintings depict Beijing, London, and Paris.


Play Urban Street Designer with Streetmix

Streetmix

Streetmix is a nifty online street designing tool that lets you play urban transportation planner.

Design, remix, and share your street. Add bike paths, widen sidewalks or traffic lanes, learn how all of this can impact your community.

For instance, you could build a model of the street you live on, add a protected bike lane, a bike rack, or see how a road diet might affect things. You can check out what others have been doing on the Streetmix blog.


The 10 shared mobility principles for livable cities

A slew of transportation companies, including Uber, Lyft, Zipcar, Didi, and Citymapper recently signed the Shared Mobility Principles for Livable Cities, which are:

1. We plan our cities and their mobility together.

2. We prioritize people over vehicles.

3. We support the shared and efficient use of vehicles, lanes, curbs, and land.

4. We engage with stakeholders.

5. We promote equity.

6. We lead the transition towards a zero-emission future and renewable energy.

7. We support fair user fees across all modes.

8. We aim for public benefits via open data.

9. We work towards integration and seamless connectivity.

10. We support that autonomous vehicles in dense urban areas should be operated only in shared fleets.

This all sounds good, but there’s not a lot of emphasis on public transportation, aside from this (and a couple of other mentions):

The mobility of people and not vehicles shall be in the center of transportation planning and decision-making. Cities shall prioritize walking, cycling, public transport and other efficient shared mobility, as well as their interconnectivity. Cities shall discourage the use of cars, single-passenger taxis, and other oversized vehicles transporting one person.

I remain skeptical that Uber’s ultimate goal isn’t to replace any and every public transportation system it can.


Lost in Light: How Light Pollution Obscures Our View of the Night Sky

Because of light pollution from urban areas, many people around the world don’t know what the night sky actually looks like. Sriram Murali made a video to illustrate light pollution levels by shooting the familiar constellation of Orion in locations around the US with different amounts of light pollution, from bright San Francisco to a state park in Utah with barely any light at all. In SF, about all you can see are the handful of stars that make up Orion’s belt, arms, and legs. But as the locations get darker, the sky explodes in detail and Orion is lost among the thousands of visible stars (and satellites if you look closely).

This video is a followup to one Murali made of the Milky Way in increasingly dark locations, which is even more dramatic:

But he did the second video with Orion as a reference because many people had no concept of what the Milky Way actually looks like because they’ve never seen it before. Murali explains why he thinks light pollution is a problem:

The night skies remind us of our place in the Universe. Imagine if we lived under skies full of stars. That reminder we are a tiny part of this cosmos, the awe and a special connection with this remarkable world would make us much better beings — more thoughtful, inquisitive, empathetic, kind and caring. Imagine kids growing up passionate about astronomy looking for answers and how advanced humankind would be, how connected and caring we’d feel with one another, how noble and adventurous we’d be.

The measurement scale for sky darkness is called the Bortle scale, as explained by David Owen in his wonderful piece in the New Yorker:

In Galileo’s time, nighttime skies all over the world would have merited the darkest Bortle ranking, Class 1. Today, the sky above New York City is Class 9, at the other extreme of the scale, and American suburban skies are typically Class 5, 6, or 7. The very darkest places in the continental United States today are almost never darker than Class 2, and are increasingly threatened. For someone standing on the North Rim of the Grand Canyon on a moonless night, the brightest feature of the sky is not the Milky Way but the glow of Las Vegas, a hundred and seventy-five miles away. To see skies truly comparable to those which Galileo knew, you would have to travel to such places as the Australian outback and the mountains of Peru.

Nicola Twilley and Geoff Manaugh interviewed Paul Bogard, author of a book on darkness about light pollution and the Bortle scale:

Twilley: It’s astonishing to read the description of a Bortle Class 1, where the Milky Way is actually capable of casting shadows!

Bogard: It is. There’s a statistic that I quote, which is that eight of every ten kids born in the United States today will never experience a sky dark enough to see the Milky Way. The Milky Way becomes visible at 3 or 4 on the Bortle scale. That’s not even down to a 1. One is pretty stringent. I’ve been in some really dark places that might not have qualified as a 1, just because there was a glow of a city way off in the distance, on the horizon. You can’t have any signs of artificial light to qualify as a Bortle Class 1.

A Bortle Class 1 is so dark that it’s bright. That’s the great thing — the darker it gets, if it’s clear, the brighter the night is. That’s something we never see either, because it’s so artificially bright in all the places we live. We never see the natural light of the night sky.

If you’d like to find a place near you with less light pollution, check out The Light Pollution Map. I’m lucky enough to live in a place with a Bortle class of 3 and I’ve visited class 2 locations before…visiting one of the class 1 parks out west is definitely on my bucket list.


An Atlas for the End of the World

Atlas End World

The Atlas for the End of the World is a project started by Penn architect Richard Weller to highlight the effects of human civilization and urbanization on our planet’s biodiversity.

Coming almost 450 years after the world’s first Atlas, this Atlas for the End of the World audits the status of land use and urbanization in the most critically endangered bioregions on Earth. It does so, firstly, by measuring the quantity of protected area across the world’s 36 biodiversity hotspots in comparison to United Nation’s 2020 targets; and secondly, by identifying where future urban growth in these territories is on a collision course with endangered species.

There’s lots to see at the site: world and regional maps, data visualizations, key statistical data, photos of plants and animals that have been modified by humans, as well as several essays on a variety of topics.

And here’s a fun map: countries with national biodiversity strategies and action plans in place. Take a wild guess which country is one of the very few without such a plan in place!


What are the largest US cities by population?

Except for the top three, I’m not sure I could have come up with most of the top 10 largest US cities by population. I’ll give you minute to guess…

1. NYC
2. LA
3. Chicago
4. Houston
5. Phoenix
6. Philadelphia
7. San Antonio
8. San Diego
9. Dallas
10. San Jose

I dunno, San Antonio at #7 really threw me for a loop. Bigger than Dallas? Bigger than San Francisco (by more than 600,000 people)? Of course, when metropolitan areas are taken into account, the picture changes. The San Antonio area drops to #30 while the Bay Area hits #5.

When I was a kid, the list looked a little different…LA had not yet passed Chicago for #2 and Texas had only two cities in the top 10 (and no Austin creepin’ in 11th place):

1. New York
2. Chicago
3. Los Angeles
4. Philadelphia
5. Houston
6. Detroit
7. Dallas
8. San Diego
9. Phoenix
10. Baltimore

That list still carries more weight in my brain than the current ranking. The facts you learn in school influence how you view your country. And some of those facts, dubbed mesofacts by Sam Arbesman, change slowly, so slowly that you’re tricked into thinking they haven’t changed at all. The average age of the US Senate right now is 62. The version of the population list that many Senators learned in school was probably from the 1950 census (or perhaps the 1960 one) and our current President, at 70 years of age, was possibly taught the list from the 1940 census. The entries on those older lists look much more like the industrial America celebrated by truck and beer commercials and represented by classic baseball and football teams — the America that is to be made great again: Detroit, Cleveland, St. Louis, and Pittsburgh.

Another instructive list to look at in this regard is the list of cities that had populations of at least 100,000 people but have since dropped below that threshold. On the list (with the % drop in parentheses) are:

Canton, Ohio (-39%)
Gary, Indiana (-59%)
Scranton, Penn (-46%)
Flint, Michigan (-50%)
Erie, Penn (-29%)
Utica, NY (-40%)

That the idea embodied by those kinds of cities still holds much sway in American politics shouldn’t be so surprising.


101 books about where and how we live

Resurfaced recently by Austin Kleon in his weekly newsletter, I missed this Nov 2016 list from Curbed of 101 books about where and how we live the first time around. The list is organized by category:

Urban Classics includes The Death and Life of Great American Cities*, The Works: The Anatomy of a City*, and Richard Scarry’s Busy, Busy Town*.

Why We Build features Geoff Manaugh’s A Burgler’s Guide to the City* and Building Stories* by Chris Ware.

Cities We Love includes Nonstop Metropolis: A New York City Atlas by Rebecca Solnit, A.J. Liebling’s Between Meals: An Appetite for Paris, and Make Way for Ducklings.

Changing Places highlights The Devil in the White City* by Erik Larson and The Levittowners: Ways of Life and Politics in a New Suburban Community by Herbert Gans.

Planning the Future includes Traffic: Why We Drive the Way We Do (and What It Says About Us)* by Tom Vanderbilt and Annalee Newitz’s Scatter, Adapt, and Remember: How Humans Will Survive a Mass Extinction.

Understanding People features Going Solo: The Extraordinary Rise and Surprising Appeal of Living Alone by Eric Klinenberg, Isabel Wilkerson’s The Warmth of Other Suns*, and Working by Studs Terkel.

And How We Live Today includes The Power Broker* and Robert Putman’s Bowling Alone.

I love the inclusion of Busy, Busy Town and Make Way for Ducklings. Books marked by an asterisk I have read or can otherwise personally vouch for. If I could recommend just one book to read from this list, it would be The Warmth of Other Suns.


Africa is urbanizing without globalizing

This is pretty interesting. Daniel Knowles:

This is Africa’s third biggest city. At 12 million, its population is bigger than London’s. Yet it has almost no connections to the outside world. On normal days, there are only 11 international flights out of Kinshasa per day. At Heathrow, the figure is around 1,400. Apart from the airport, the only other way into this vast megacity is the rickety ferry from neighbouring Congo-Brazzaville. If you were extremely brave, you could try the road to the Atlantic Ocean. But that’s about it. Kinshasa can burn and most of the world doesn’t notice, because Kinshasa is only slightly better connected to the global economy than the North Pole.

And yet somehow it is one of the world’s fastest growing cities. Kinshasa is a particularly extreme example of how Africa is urbanising without globalising. Sixty years ago the whole of sub-Saharan Africa had no cities with a population of more than a million people. Now it has dozens.

But unlike the English peasants who moved to factory cities in the 19th century, or Chinese ones in the 20th, the people moving to African cities are not moving to new global metropolises. Africa’s urbanisation is not driven by economic growth. Instead, people are moving to miserable mega-cities, with crumbling infrastructure and corrupt political systems, and which export almost nothing. Two thirds of Africa’s urban population growth is accounted for by slums. Changing that may well be the biggest challenge facing African governments in the 21st century.


Road Dieting

The concept of road diets is an alternate approach to dealing with road congestion that’s gained popularity in recent years. The typical solution to heavy traffic on roads is to widen them with more travel lanes. The problem is such an approach can induce demand and instead of two lanes of traffic jam, you get four lanes going nowhere.1

Instead, with a road diet approach, you might turn a four-lane road into three lanes: two travel lanes and a turn lane in the middle.

Realizing these unintended outcomes, some localities implemented a type of road diet: reconfiguring the four lanes (two in each direction) into three (one each way plus a shared turn lane in the middle). The change dramatically reduced the number of “conflict points” on the road-places where a crash might occur. Whereas there might be six mid-block conflict points in a common four-lane arterial, between cars turning and merging, there were only two after the road diet.

Likewise, at an intersection, eight potential conflict points became four after a road diet.

The result was a much safer road. In small urban areas (say, populations around 17,000, with traffic volumes up to 12,000 cars a day), post-road diet crashes dropped about 47 percent. In larger metros (with populations around 269,000 and up to 24,000 daily cars), the crash reduction was roughly 19 percent. The combined estimate from all the best studies predicted that accidents would decline 29 percent, on average, after a four-to-three-lane road diet — DOT’s reported figure.

Pedestrian and bike usage tends to increase as well (b/c that extra street can be converted to bike lanes or sidewalks), speeding decreases, and car travel times are largely unaffected. This quick video by Jeff Speck shows four different approaches to road dieting:

Update: See also Braess’ paradox.

Braess’ paradox or Braess’s paradox is a proposed explanation for a seeming improvement to a road network being able to impede traffic through it. It was discovered in 1968 by mathematician Dietrich Braess, who noticed that adding a road to a congested road traffic network could increase overall journey time, and it has been used to explain instances of improved traffic flow when existing major roads are closed.

The paradox may have analogues in electrical power grids and biological systems. It has been suggested that in theory, the improvement of a malfunctioning network could be accomplished by removing certain parts of it.

(thx, david)

Update: A street in Oakland recently underwent a road diet: two of five lanes were converted into protected bike lanes. The result is an increase in biking and pedestrian use, a decrease in collisions, a decrease in speeding, and an increase in business along the street.

Along nine blocks of Oakland’s Telegraph Avenue, biking is up 78 percent since protected bike lanes were installed. Walking is up 100 percent - maybe because, thanks to the single lane of through traffic in each direction, the pedestrian yield rate doubled in the mornings and tripled in the afternoons.

Meanwhile, the number of traffic collisions fell 40 percent. Retail sales in a district that has sometimes struggled are up 9 percent, thanks in part to five new businesses.

And the median car speed is now the speed limit: 25 mph. As usual on such projects in urban areas, the main effect of removing a car passing lane was not to jam traffic, only to prevent irresponsible drivers from weaving between lanes in order to get to the next stoplight more quickly.

  1. The concept of induced demand can be seen in other places, like New Orleans’ overcrowded jails.


Citizen Jane, a documentary film about Jane Jacobs

Citizen Jane: The Battle for the City is a documentary films about Jane Jacobs and her legendary battle against Robert Moses for the soul of New York City.

People have to insist on government trying things their way.

The film will be available in theaters and on-demand on April 21.

I’m a bit more than halfway through the audiobook of The Power Broker and Robert Moses is approaching the height of his influence. The power that Moses possessed in NYC almost cannot be overstated — I can’t think of any other single person who affected the “look and feel” of the city more than he did. I have heard the story many times, but I can’t wait to get the part with Jacobs, to hear in Caro’s words how this infinitely powerful man lost his grip on the city because of this remarkable woman and a group of concerned citizens. (via @daveg)

Update: Astoundingly, Jacobs is not in The Power Broker. Her chapter was cut for length. (thx, alec)


Why cities are where they are

It makes sense that villages and towns would develop a short distance away from each other so that people living nearby wouldn’t have to travel far to sell their goods, bank, or go to school. But what about cities? Geography has a lot ot do with where cities are located.

If you enjoy this video but haven’t read Jared Diamond’s Guns, Germs, and Steel yet, you probably should.


The dazzling and depressing architecture of density in megacities

Michael Wolf

Michael Wolf

Michael Wolf

Michael Wolf

I’ve featured the work of photographer Michael Wolf here before, particularly his series of photos taken in Hong Kong called Architecture of Density, photographs which capture the immense scale of the city’s apartment buildings and the smallness of the apartment they contain. Another of his projects is 100x100, interior photographs of 100 Hong Kong dwellings that measure 100 square feet or less in size. (See also Hong Kong Cage Homes.)

In this pair of videos, Wolf discusses these projects and a couple of other ones I hadn’t seen before.

In Tokyo Compression, Wolf captures the boredom and despair of Japanese train commuters, smushed into cars dampened by the heat of humanity. For Back Door, he ventured into the alleys of Hong Kong and witnessed people using the infrastructure of the city for storing, sorting, and drying all sorts of things, from after-work clothes to mops to lettuce. (via craig mod)


Mini metro maps

Mini Metros

Mini Metros features small and simplified maps of over 200 metro and light rail systems from around the world. Many of the systems are small and simple themselves, just a single line or two, like in Edmonton, Mumbai, Seville, and Qingdao. Others, like in Munich, Shanghai, Tokyo, London, Seoul, and New York, are densely interconnected.

Prints and mugs are available.


The Future of Cities

Collaborating with a number of different people from all over the place, filmmaker Oscar Boyson went out into the world and came back with this excellent 18-minute video on the future of cities. Among the cities profiles are Shenzhen, Detroit, Singapore, NYC, Copenhagen, Seoul, Lagos, and Mumbai.

What does “the future of cities” mean? To much of the developing world, it might be as simple as aspiring to having your own toilet, rather than sharing one with over 100 people. To a family in Detroit, it could mean having non-toxic drinking water. For planners and mayors, it’s about a lot of things — sustainability, economy, inclusivity, and resilience. Most of us can hope we can spend a little less time on our commutes to work and a little more time with our families. For a rich white dude up in a 50th floor penthouse, “the future of cities” might mean zipping around in a flying car while a robot jerks you off and a drone delivers your pizza. For many companies, the future of cities is simply about business and money, presented to us as buzzwords like “smart city” and “the city of tomorrow.”

A few tidbits from the video to whet your appetite:

  • An estimated 70% of the world’s population will live in urban areas by 2050. (It’s currently 54%.)
  • Buying a Toyota Corolla in Singapore costs $140,000.
  • In 2012, 52% of the cost of US highways and roads was paid by general tax revenue rather than by drivers (through gas tax and tolls). In 1972, it was only 30%, which means car usage is much more heavily subsidized than it used to be.
  • When you buy a car in Denmark, you pay a 150% tax, even if it’s electric.
  • And a relevant quote from Jane Jacobs’ The Death and Life of Great American Cities: “Lowly, unpurposeful, and random as they may appear, sidewalk contacts are the small change from which a city’s wealth of public life may grow.”

And boy, listening to Janette Sadik-Khan talk about cities being for people and the importance of public transportation and then, directly after, having to listen to some dipshit from Uber was tough. (via @mathowie)


Dear Donald Trump, you should visit your hometown someday

In a short essay from Literary Hub titled New York is a Book Conservatives Should Read, Rebecca Solnit writes an open letter to Donald Trump urging him to take some lessons from the city in which he lives. Solnit argues that Trump’s wealth has insulated him from experiencing one of the true pleasures of American cities like New York: energetic and meaningful diversity.

You treat Muslims like dangerous outsiders but you seem ignorant of the fact that the town you claim to live in has about 285 mosques, and somewhere between 400,00 and 800,000 Muslims, according to New York’s wonderful religious scholar Tony Carnes. That means one out of ten or one out of twenty New Yorkers are practitioners of the Islamic faith. A handful of Muslims, including the Orlando mass murderer, who was born in Queens, have done bad things, but when you recognize how many Muslims there are, you can stop demonizing millions for the acts of a few.

NYC is only one-third white and is home to hundreds of thousands of Muslims and Jews and millions of blacks, Latinos, and Asians.

Speaking of African-Americans: have you ever been to Harlem or the Bronx? You keep talking about black people like you’ve never met any or visited any black neighborhoods. Seriously, during that last debate you said, “Our inner cities are a disaster. You get shot walking to the store. They have no education. They have no jobs. I will do more for African-Americans and Latinos than she can ever do in ten lifetimes. All she’s done is talk to the African-Americans and to the Latinos.” Dude, seriously? Did you get this sense of things from watching TV-in 1975?

Solnit wrote the piece after compiling her most recent book, Nonstop Metropolis: A New York City Atlas.

Bringing together the insights of dozens of experts — from linguists to music historians, ethnographers, urbanists, and environmental journalists — amplified by cartographers, artists, and photographers, it explores all five boroughs of New York City and parts of nearby New Jersey. We are invited to travel through Manhattan’s playgrounds, from polyglot Queens to many-faceted Brooklyn, and from the resilient Bronx to the mystical kung fu hip-hop mecca of Staten Island.

This NY Times piece on the political inclinations of rural areas vs cities is an interesting companion to Solnit’s letter.

“There is something really kind of strange and interesting about the connection between peoples’ preferences — what they view as the good life, where they want to live — and their partisanship,” said Jonathan Rodden, a political scientist at Stanford. His precinct-level maps of presidential election results show deep blue in the densest, central parts of metropolitan areas, where you’d find the Main Streets, city halls, row homes and apartment buildings. The farther you travel from there, the redder the precincts become. And this is true whether you look around New York City or Terre Haute, Ind.


Ten lessons learned by rereading Jane Jacobs

Martin Pedersen recently reread Jane Jacobs’ The Death and Life of Great American Cities and came away with ten lessons.

3. Jacobs was remarkably prescient on gentrification.
She didn’t invent the term or even use it. But she observed (and I don’t know how, since most cities were in decline at the time) that lively diverse neighborhoods are always at risk for becoming victims of their own success, because newcomers invariably alter the characteristics that made these neighborhoods appealing to them in the first place. Today this seems obvious and self-evident, but that’s largely because of Jane Jacobs.

Yeah, it’s time for a reread…it’s been more than 12 years for me. (via @michaelbierut)


Brand New Subway

Whoa, this is the coolest! Jason Wright’s Brand New Subway allows players to alter the NYC subway system as they see fit. You can start with existing maps and the choices you make affect ridership and the price of a Metrocard.

Players can choose to start from scratch or one of several NYC subway maps (including present-day, maps dating back to the early 1900s, or maps from the future). They can build new stations and lines to expand the system to new areas, or tear it down and redesign the whole thing. The game intends to evoke an imaginative spirit, to empower people to envision transportation according to their needs and desires, and to arouse the fun of tinkering with maps.

This project is an entry in The Power Broker Game Design Competition, the goal of which is to adapt Robert Caro’s The Power Broker into a playable experience. Wright explains how his game hits the mark:

Bottom-up vs. top-down design. Moses was infamous for his top-down approach to urban planning. He held “the public” as a concept in high regard while simultaneously showing contempt for the individuals who made up that public, in the form of arrogance, spitefulness, and an utter lack of concern for the millions displaced for his expressways and parks. Later on in his career, as the span of his projects increased, Moses would make monumentally important decisions about the fate of a neighborhood without once setting foot there. He was known for building 13 bridges and hundreds of miles of parkways despite never driving a car.

Although Brand New Subway might appeal to someone who enjoyed SimCity but who has never set foot in New York City, it’s targeted primarily at those who actually ride the subway and who might feel invested in what they design. In that regard, it inverts Moses’ paradigm by encouraging players to improve on transportation in their own neighborhoods and in ways to which they have a personal connection.

I reeeeeeally didn’t want to spend the rest of my day playing with this, but that super express train from Manhattan to JFK isn’t going to build itself! (via @byroncheng)


New from Tinybop: Skyscrapers

Tinybop’s newest app for kids is called Skyscrapers.

Discover how people build, live, and play in skyscrapers. Construct a skyline full of buildings! Go up and down, through every floor, and underground. Spark a blackout, fix a pipe, or clog the toilets. Test your building’s engineering when dinosaurs invade, lightning strikes, or the earth quakes. Find out what keeps skyscrapers standing tall and people happy in them all.

I believe my kids have all of the Tinybop apps and love them…I’m downloading this one right now. See also a bunch of great educational-ish iPad apps for kids.


Visualization of the history of cities from 3700 BC to now

Using the results of a recent report by a team of Yale researchers, this visualization shows the growth of urbanization across the globe from 3700 BC to the present day. There is an amazing flurry of activity in the last few seconds of the video because:

By 2030, 75 percent of the world’s population is expected to be living in cities. Today, about 54 percent of us do. In 1960, only 34 percent of the world lived in cities.

There are now 21 Chinese cities alone with a population of over 4 million.


What’s the most “normal” place in the US?

There’s been a lot of talk in this election cycle about “average Americans” and “real Americans”. In a piece for FiveThirtyEight, Jed Kolko used age, education, and race & ethnicity to find the city most demographically similar the US as a whole. Here’s his top 5:

1. New Haven-Milford, CT
2. Tampa-St. Petersburg-Clearwater, FL
3. Hartford-West Hartford-East Hartford, CT
4. Oklahoma City, OK
5. Springfield, MA

Economist Lyman Stone thought Kolko’s methodology was flawed:

See, he used 3 variables: race, education, and age, to proxy for “normalcy.” His method looked at how typical a given “race” group in a given city was on educational/age factors, and a given educational group in a given city on race/age factors, etc. In other words, he didn’t truly ask “What city is most normal?” He asked “In what city is each group of people most typical of that group of people nationally?” That’s a cool question, but it’s totally not “normalcy.” The reason is simple: as best I can tell, Jed doesn’t fully capture the role of aggregate composition. He’s trying to get specific and avoid calling a place “abnormal” just because it has one weird demographic lump; he wants cell-specific abnormality. But nobody cares if Graduate-Degree-Holding Native Americans happen to be much younger in St. Louis than elsewhere. We care if St. Louis has a weirdly large number of Graduate-Degree-Holding-Native-Americans. Composition of the population is the most important measure of normalcy, and one that Kolko’s method will tend to under-emphasize.

Stone ran his own analysis with that in mind, using 20 different demographic variables, and came up with a different list of the most normal places in America:

1. Oklahoma City, OK
2. Tulsa, OK
3. Jacksonville, FL
4. Spokane-Spokane Valley, WA
5. Phoenix-Mesa-Scottsdale, AZ

The above table shows the places with the lowest weirdness-scores. Two of them are in Oklahoma. I’ll talk about them together. Oklahoma City is less than 1 standard deviation from the mean on every single variable. It is exactly the mean for the poverty rate, and almost exactly the mean for educational attainment. It’s biggest oddity is housing costs compared to income, which are a bit high, and the percent of households with a car, which is also just a teentsy bit high. Other than that? If you’re looking for “Normal America” then look to Oklahoma City. Tulsa’s story is the same, except it also has a bit of a low share of civilian government workers.

Among the weirdest places on Stone’s list? San Jose, NYC, and Jacksonville, NC.

New York is up next. Again, a large foreign-born share makes New York weird. But the real weirdness is actually in New York’s transit access. New York’s car-ownership share is a whopping nine standard deviations below the national average. New York’s housing costs also make it weird, as does the percent of people who are renting. In other words, New York is weird because it’s just so darn urban.


Satellite imagery search engine

Terrapattern is a search engine for satellite images. You click on a specific feature of interest on a map and the site returns results that match it. For instance, here are the locations of solar panels in NYC.

Terrapattern

You can also use Terrapattern to find school bus depots, fracking wells, Air Force bombers, baseball diamonds, train tracks, and much more.

There are only four cities currently represented (Pittsburgh, New York, San Francisco, and Detroit) but this is already super cool to play around with. (via @genmon)


How highways wrecked American cities

As part of the Interstate Highway System project, expressways were run right through the heart of many American cities, disrupting neighborhoods and displacing hundreds of thousands of people.

The 48,000 miles of interstate highway that would be paved across the country during the 1950s, ’60s, and ’70s were a godsend for many rural communities. But those highways also gutted many cities, with whole neighborhoods torn down or isolated by huge interchanges and wide ribbons of asphalt. Wealthier residents fled to the suburbs, using the highways to commute back in by car. That drained the cities’ tax bases and hastened their decline.

So why did cities help build the expressways that would so profoundly decimate them? The answer involves a mix of self-interested industry groups, design choices made by people far away, a lack of municipal foresight, and outright institutional racism.

Here’s some homework: think about Uber/Lyft and the coming self-driving cars (Tesla, Apple, Google, Ford, etc.) in the context of the highways’ effect on the American city. Who benefits most from these services? (The wealthy? Huge companies?) How will they affect the funding and use of public transportation? What will happen to cities? To urban sprawl? To the economically disadvantaged?


Jane Jacobs born 100 years ago today

Jane Jacobs Google Doodle

Jane Jacobs, journalist, activist, and author of The Death and Life of Great American Cities (one of my favorite books of all time), was born 100 years ago today. Curbed has a big collection of stories in celebration and Vox also has an appreciation of her career.

When Jane Jacobs published The Death and Life of Great American Cities in 1961, she was a lone voice with no credentials speaking up against the most powerful ideas in urban planning. Fifty-five years later, on Jacobs’ 100th birthday (honored in today’s Google Doodle), urban dwellers are all living in her vision of the great American city.

The Death and Life of Great American Cities was a reaction to urban planning movements that wanted to clear entire city blocks and rebuild them. Jacobs argued this ignored everything that made cities great: the mixture of shops, offices, and housing that brought people together to live their lives. And her vision triumphed.

Fun and sorta weird fact: neither The Death and Life of Great American Cities or Robert Caro’s The Power Broker (about Jacobs’ foe Robert Moses) is available in ebook format.

Update: From an interview with Jacobs included in Jane Jacobs: The Last Interview and Other Conversations:

If I were running a school, I’d have one standing assignment that would begin in the first grade and go on all through school, every week: that each child should bring in something said by an authority — it could be by the teacher, or something they see in print, but something that they don’t agree with — and refute it.

BTW, I started the audiobook version of The Power Broker today and it is already so good. (via brainpickings)


“Robert Moses Is A Racist Whatever”

Christopher Robbins recently interviewed Robert Caro (author of The Power Broker, perhaps the best book ever written about New York) for Gothamist. The interview is interesting throughout. (I lightly edited the excerpts for clarity.)

Caro: If you’re publishing on the Internet, do you call them readers or viewers?

Robbins: Either, I think.

Caro: How do you know they’re reading it?

Robbins: There’s something called Chartbeat — it shows you how many people are reading a specific article in any given moment, and how long they spend on that article. That’s called “engagement time.” We have a giant flatscreen on the wall that displays it, a lot of publications do.

Caro: What you just said is the worst thing I ever heard. [Laughs]

That exchange makes a nice companion to Snapchat like the teens.

Caro: Moses came along with his incredible vision, and vision not in a good sense. It’s like how he built the bridges too low.

I remember his aide, Sid Shapiro, who I spent a lot of time getting to talk to me, he finally talked to me. And he had this quote that I’ve never forgotten. He said Moses didn’t want poor people, particularly poor people of color, to use Jones Beach, so they had legislation passed forbidding the use of buses on parkways.

Then he had this quote, and I can still hear him saying it to me. “Legislation can always be changed. It’s very hard to tear down a bridge once it’s up.” So he built 180 or 170 bridges too low for buses.

We used Jones Beach a lot, because I used to work the night shift for the first couple of years, so I’d sleep til 12 and then we’d go down and spend a lot of afternoons at the beach. It never occurred to me that there weren’t any black people at the beach.

So Ina and I went to the main parking lot, that huge 10,000-car lot. We stood there with steno pads, and we had three columns: Whites, Blacks, Others. And I still remember that first column — there were a few Others, and almost no Blacks. The Whites would be go on to the next page. I said, God, this is what Robert Moses did. This is how you can shape a metropolis for generations.

That’s something to remember the next time someone tries to rehabilitate Moses’ legacy. Not to mention this excerpt from The Power Broker:

Robert Moses had always displayed a genius for adorning his creations with little details that made them fit in with their setting, that made the people who used them feel at home in them. There was a little detail on the playhouse-comfort station in the Harlem section of Riverside Park that is found nowhere else in the park. The wrought-iron trellises of the park’s other playhouses and comfort stations are decorated with designs like curling waves.

The wrought-iron trellises of the Harlem playhouse-comfort station are decorated with monkeys.

And now I am filled with regret at never having read The Power Broker. I started it a couple times, but could never find the time to follow through. I wish it was available on the Kindle…a 1300-page paperback is not exactly handy to carry about and read. The unabridged audiobook is 66 hours long…and $72.


The economic history of one NYC block

Economist William Easterly and some of his colleagues built a site that focuses on the economic development of a single block in NYC, Greene Street between Houston and Prince. In the past 175 years, use of the block has gone from wealthy residential to sex work to garment manufacturing to artist galleries to luxury retail.

133 Greene Street, for example, has been part of the large Bayard farm, a grand residential home, a brothel, a garment factory, part of a slum, an art gallery, and is today the home of luxury co-op residences and a Dior Homme store.

Many of these shifts took only a decade and could have been very difficult to anticipate.

The site was built to accompany an academic paper on economic development.

By 1870, the Greene Street Block contained 14 brothels, the highest concentration of any block in the City. Just as surprising was the sudden end of prostitution on the block. Brothels still abounded in 1880, but during the next decade entrepreneurs demolished and rebuilt almost the entire block as castiron factories and warehouses, and what was left of the red-light district moved up town.

The site is a little confusing to navigate, but is worth checking out in detail. For instance, check out how quickly the garment manufacturing industry shifted from downtown to the present-day Garment District.

Greene Street

Greene Street

(via wired)


High-rent blight in the West Village

Shuttered storefronts. Abandoned retail locations. Small businesses that fall like the House of Cards & Curiosities on Eighth Avenue. These are the signs of urban blight we usually associate with economic downturns or poor, forgotten neighborhoods. But these shuttered storefronts are in one of America’s wealthiest neighborhoods; NYC’s West Village. As The New Yorker’s Tim Wu explains, some urban blight emerges when economic times are too good and rents get too high. And we’re not just talking about mom and pop here. Even Starbucks is closing some Manhattan locations due to rent hikes.


One-way streets are bad

A study of one-way streets in Louisville suggests they are generally not good for the city.

In 2011, Louisville converted two one-way streets near downtown, each a little more than a mile long, back to two-way traffic. In data that they gathered over the following three years, Gilderbloom and William Riggs found that traffic collisions dropped steeply — by 36 percent on one street and 60 percent on the other — after the conversion, even as the number of cars traveling these roads increased. Crime dropped too, by about a quarter, as crime in the rest of the city was rising. Property values rose, as did business revenue and pedestrian traffic, relative to before the change and to a pair of nearby comparison streets. The city, as a result, now stands to collect higher property tax revenues along these streets, and to spend less sending first-responders to accidents there.

For decades, American cities have been built around the automobile and getting them and their passengers through cities as quickly as possible. This research suggests slowing the pace of the city results in increased safety, decreased crime, and higher property values. (via mr)

Update: More evidence from Tampa, Denver, and Richmond that one-way streets aren’t the best. (via @techsavvywriter)