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The natural proprietors of the street

A while back Iker Gil of Mas Context asked to interview me for an issue of his magazine focused on the topic of surveillance. The angle was to present data, especially urban data, through the lens of “tracing, archiving, control, camouflage, deletion and monitoring”. The topic was very relevant, given what we know about the NSA and PRISM, but something about the issue’s sole focus on deliberate subterfuge and power imbalance rubbed me the wrong way. I noted to Iker:

“[S]urveillance” is a word fraught with bias towards the act of looking, covertly. What’s going on is much more than that: sensing of all the vital signs of the environment, not just looking at people or their data. That may be what you intend, but it is a partial and distorted picture of the value of instrumented cities. It does not imply any of the benefits of bus trackers, or dynamic tolling, or bridge traction coefficients for warming or any of the other myriad ways the Internet of Things makes our lives better.

Iker was interested in speaking with me based on my advocacy of — and work towards — platforms of public data collection and sharing. I agreed to be part of the issue mostly because I wanted to make the case that there’s nothing inherently nefarious about city data. There’s a line between observation and surveillance — and it needs to be well-limned. Sensible, adaptable urbanism is based on thoughtful observation. Mas Context chose to go with surveillance, which is useful: knowing what’s on the other side of the line is important in being able to draw it accurately.

The full piece is available here.


Cities teem with data because they teem with people using the city. Records of its use — from historical real estate deeds to real-time pedestrian-counting — is data collection. Naturally, news organizations, community groups, activists, and municipal governments have been collecting it for a very long time.

But that’s not the important point. What matters is how it is collected and shared. Collective observation is achieved — and surveillance defused — when the following goals are achieved:

  1. individual privacy is protected
  2. the act of data collection is fully transparent
  3. all collected data is made available openly, free of charge, and in formats that are useful

Drop the ball on any one of these and you have what can rightly be called surveillance. Nail all three and you get what Jane Jacobs called “eyes upon the street, eyes belonging to those we might call the natural proprietors of the street.”

It’s that second clause — who the eyes belong to — that’s the critical difference. Being looked at (and perhaps not even knowing it) versus doing the looking yourself.

Healthy neighborhoods are those that feel observed (and hence engaged) by its residents. Safe roads are those where everyone — motorists, cyclists, and pedestrians — is equally vigilant. Smart cities are those where people are in the know, period. This can come from a mix of their own observation, a diligent local press (and blogging) corps, and, yes, data that is published about their world collected with notification, openly, and with utmost respect for privacy.

Healthy urban experience depends on eyes upon the street. Let’s make sure those eyes are ours.

“Your moon is on fire”: design and city-making in Helsinki

A few weeks ago I had the pleasure of visiting Helsinki, Finland as a guest of Pluto Finland and Forum Virium. It was a trip long in the making, as I had been extended an invitation by the mayor of Helsinki, Jussi Pajunen, almost two years previously in my role at the City of Chicago. I knew something good was afoot there, so it was time to figure out just what exactly.

Purely by coincidence I was in DC the days before departure and received a tour of Finland’s incredible embassy there. This is not your normal Embassy Row structure. Cantilevered over Rock Creek Park, the building is airy and expansive, feeling almost as much a part of the forest it backs up to as a portal to it. In fact, the grid of the floor plate is “extended” into the trees by way of light-topped poles that repeat the spatial divisions of the interior. It’s a natural-architectural harmony that, one would guess, also underpins the Finnish government’s successful attempt to build the first LEED-certified embassy in the US. Nature as design inspiration and constraint — a theme I’d see repeated many times over the next week.


Embassy of Finland, Washington DC

My exact point of departure was Dulles Airport, the masterful sloping tug-o-war-of-a-building designed by Finnish architect-hero Eero Saarinen. It’s gorgeous and evocative of flight — or at least ascent. Like his arch in St. Louis, which I frequented during my time in graduate school there, the design is a simple curve set against the sky. At Dulles the slope takes humans from ground to the clouds; in St. Louis the Gateway Arch plants the dreams of westward expansion back on earth.


Dulles International Airport, Washington DC

(I thought also of a third curve, not sloping up or down but across: the facade of Saarinen’s IBM building in Yorktown Heights, NY, where I spent much of my early career. The Yorktown building’s architectural conceit is not about bringing people to or from the sky but into contact with one another: no office has an exterior window; the only way to get anywhere or any sunlight is to engage with the hallway formed by the long, gently curving facade.)

All of this an unexpected prologue to the trip. Finnish design escorting me out the door.

Helsinki was named the World Design Capital in 2012. There are many reasons for this honor that have nothing to do with the built environment, but the city itself feels well-crafted, smoothed-out, intentional. New on the scene as a European capital, relatively speaking, Helsinki is a modern city that bears the imprint of what we’d only later call urban planning. That there are very few iconic elements in its cityscape — an Eiffel Tower, a Ponte Vecchio, a Big Ben — focuses attention on the entirety of the place as a designed object.

But there’s also an urgent pragmatism at work. Dan Hill, in his fantastic essay “Designing Finnishness“, describes it as such:

Necessity does not breed frippery, skittishness or carelessness. It breeds purpose, momentum, independence and a belief in technical strength—the art of know-how, nous, savoir-faire.

Necessity, this particular mother of invention, is the challenge of living in such a harsh winter climate, with a gargantuan landmass, minuscule population, and traditionally bellicose neighbors. To survive any of these means being smart and deliberate about how things work. At the urban scale this is about the beauty of efficiency.

Helsinki panorama from Hotel Torni (by Tor Lillqvist)

Helsinki was recently recognized as one of six exemplar “smart cities” in an EU Europe 2020 report which defines a smart city as “a city seeking to address public issues via ICT-based solutions on the basis of a multi-stakeholder, municipally based partnership.” If this is the litmus test for smart by European standards I saw plenty of examples of why Helsinki qualifies.

The municipal government — which provides nearly all public services short of police and military — has moved far beyond the policies and portals of open data of its Western European counterparts. Nearly everyone I talked to, including deputy mayors Hannu Penttilä and Pekka Sauri and the mayor himself, was keen to show me the applications that have been built upon the Open Ahjo API for accessing materials related to the deliberation of procedures and laws. Put another way, Helsinki has an open API for the process of democracy rather than simply a portal for the results of it. This is a huge deal: debate transcripts, legislative emendations, recorded minutes — all synchronized and designed for ease-of-access and cross-reference. It’s a real-time wiki for how city government is making decisions. This is what open data in the US needs to aspire to.

ahjo explorer2

Ahjo Explorer

How’d they get to this point of extreme transparency? I have no definitive answer, but it doesn’t hurt that Estonia and its capital Tallinn right across the Gulf of Finland is a champion of digital government. While there’s a history of affinity and commerce between these two cities, you get a whiff of competitiveness when Finns note that for Estonia, who long suffered the very opposite of open government under Soviet occupation, “it is easy when you start from nothing”.

Data, not just transcribed conversation, is the bedrock of a city that seeks to be a platform for innovation outside of government. And Helsinki leads in that arena as well. They actually have a department called Urban Facts, which would be funny if it weren’t so good at what it does. More important — certainly more worthy of emulation — is the Helsinki Region Infoshare portal. All cities exist as part of metropolitan regions; data does not stop at jurisdictional borders. While the Infoshare does not normalize data across cities, it does make it easily accessible — a first step to the real win of data standards between cities.

The key in the EU definition of smart city, above, is “multi-stakeholder”. The first wave of smart city rhetoric focused on government and infrastructure, almost as closed systems, enterprise and top-down. But what’s clear to nearly everyone actually involved in technology for cities is that it’s actually innovation outside (sometimes just on the periphery) of government that effects the real change. But that swirling mass of talent and activism outside government often needs a center of gravity. In Chicago that’s the Smart Chicago Collaborative; in Helsinki it is Forum Virium, specifically their Smart City project area.

Forum Virium serves an important role of organizing the various communities involved in digital city-making. Led by the polymath dynamo Jarmo Eskelinen, Forum Virium is part matchmaker, part grant-seeker, part center of knowledge for all things smart city.

One project of real note under Forum Virium’s purview is the Kalasatama smart district project. One of several brownfield waterfront in-fill projects in Helsinki (heavy shipping has mostly moved to other areas in the region), Kalasatama is the testing ground for new technologies in the urban fabric. Unlike first wave smart cities like Masdar and Songdo, however, this district is right in the middle of Helsinki. The project, called Fiksu Kalasatama, aims to improve energy consumption, transportation and social services through integrated systems and ease-of-access and, while, it is early in the planning phase, it is clear that the goal is to serve as a pilot for scaling into Helsinki proper.


Fiksu Kalasatama

Creative Finnish city-making sometimes has no digital component at all. Would you believe Helsinki is the epicenter of wooden skyscraper design? That’s right, wooden. And tall. The huge swath of forests north of Helsinki created a world-leading paper and pulp industry for decades in Finland, but the rise of online communication is forcing major timber companies to rethink the end-uses of their product. The paper company Stora Enso is currently developing Wood City, an entire district in the city built of timber.


Wood City

Chicago, you may know, has something of a history with crappy, flammable wooden structures — so the idea of Wood City at first gave me pause. But I was impressed by the engineering and science behind the plans for construction. Wood of course burns, but, as was demonstrated, when subjected to flame cross-laminated timber essentially chars a protective cocoon around the structure-bearing beam at the core.

There are many appealing architectural and sensory (olfactory!) implications of very large wooden structures, but perhaps the most important is that wooden structures are far more malleable over time than steel and brick. Stewart Brand’s notion of a building’s “shearing layers” — its site, structure, skin, and services — that all evolve at different rates has long been fundamental to smartly-designed buildings. There’s something very code-like and mutable about a building as open to modification as those Stora Enso is constructing. (It’s no wonder shearing layers has been adopted as a concept in software too.) Nature here not so much as design constraint as advantage.


Startup Sauna, Aalto University, Espoo

In Espoo, a large suburb of Helsinki best known as the home of Nokia, I had a chance to visit the UrbanMill (speaking of shearing and timber, ahem). UrbanMill is an incubator for startups focusing on civic innovation. It’s a sign of some maturity in the Finnish startup ecosystem that something as specialized as a city-focused startup space even exists. There are very few in the US, but the opportunity space is huge.

What’s exciting about UrbanMill is less its projects, which are excellent, but that the startup energy in Helsinki is off the charts, evident most proximately by its next-door neighbor Startup Sauna. Rovio’s Angry Birds and Supercell’s Clash of Clans are two of the most successful examples, but tech-savvy entrepreneurs are pouring out of Helsinki’s universities and into other application areas as well. If even a fraction of these folks choose to tackle the problems inherent in cities — mobility, social justice, public safety, the list is endless — Helsinki will have a leg up.


Nokia logotype replaced by Microsoft, April 25, 2014

The Microsoft acquisition of Nokia was finalized while I was in Helsinki. Time will tell how this merger turns out, but history suggests it won’t be easy for the Nokia brand to thrive under Microsoft’s stewardship. And this, ultimately, is a good thing. The effect of Nokia on Helsinki is tangible — I’ve never, for instance, seen so many people using Windows Phones — but it has also been an enormous magnet for technical talent in the region. That magnetism is weakening which means more opportunities for engineers and computer developers to join smaller firms or start their own. It’s time for new centers of gravity to form in Helsinki’s industrial galaxy. This can only be good.

Helsinki was a lot of fun too. I happened to be there the week of one of Finland’s biggest public holidays. Called Vappu, May Day elsewhere, it corresponds to the graduation of thousands of Finnish high school students. On the eve of Vappu the central plaza of Helsinki fills to capacity to watch the tradition of “crowning” the statue called Havis Amanda with a university cap (looking somewhat like a sailor’s hat). At that point everyone else is obliged to put their university caps on (including people who graduated decades ago) then basically spend the next 36 hours drinking, picnicking and making merry.


Crane-dangled students prepare to crown Havis Amanda

I was also honored to be invited to DJ “Chicago Night” at a local bar on Vappu eve eve. Coming the week after Frankie Knuckles died, you can imagine the playlist.

I cannot not comment on the beauty of the Finnish institution of saunas. The basement of the embassy in DC is a vast, gorgeous sauna (the only Finnish word in English parlance), where the ambassador holds official meetings. At the Kotiharjun sauna in Helsinki I had the privilege of meeting with the incredible Open Knowledge Finland group. Casual, public meeting places like this are, alas, on the decline in Finland, primarily because new residential development almost always allows for in-unit or shared-unit saunas. This is a shame as the sauna as a social institution is an incredible social equalizer. Everyone is the same when they are sweating, hardly breathing, and nude. A lesson for city-makers, indeed.

My visit to Finland came a few weeks after a similar trip to Italy. The contrast could not have been more stark. Fiery, mobilized, sometimes angry Italian civic innovators railed against a common cause — usually the government itself. I didn’t see that in Helsinki. Government seems to be running just fine. The leaders get open data and government and seem to fairly finely tuned into the urbanist needs of the city itself. And so I was left wondering: isn’t part of the appeal of a city the resistance in the material, a little bit of grit in the gears? Real creativity is born of friction — psychological, sociological, political. Beyond surviving the climate what is the passion that stirs Finns to design what they do?

I do not have an answer to this. I was there less than a week. But I would love insight. I do know that the primacy of design in urban matters as a counterbalance to tech-heavy “smart city” rhetoric is welcome. We won’t get to truly smart cities with engineering and computer science alone. It takes “the art of know-how, nous, savoir-faire” as Dan Hill put it, something designers excel at. Finland can be the vanguard of the second wave of smart cities.

A note on the title of this post. The week after I was in Helsinki this tweet came through, which pretty aptly summarizes the inscrutability of the Finnish language. I can fake my way through most of the Romance languages. But Finnish, forget it.

Helsinki’s moon, Nokia, is on fire. But the city’s skill at design, experience in open city government, and activated civic actors outside of city government form a bright sun. One hopes that the almost-perpetual summer sun in Helsinki is a metaphor for things to come.

City of Big Data


Newcity has published an edited transcript of a conversation I had with writer Phil Barash about design, data, and urban systems. It’s a lotta words, but does, in a way, capture more fully my thinking on data-informed urban design than anything that’s previously been published. So I’m glad for that.

Here’s the full piece: Bright Lights, Big Data: How the Hog Butcher became the Data Cruncher.

The story is timed to coincide with the opening of the Chicago Architecture Foundation’s City of Big Data exhibit. If you live in Chicago — or are visiting (the CAF architecture river cruise is the most popular thing to do in the city) — you really should check it out. Answer questions such as: What does information architecture have to do with the built environment? How did the fire of 1871 kick off Chicago’s obsession with urban data? And, just what in the hell does Carl Sandburg have to do with big data?

Bonus: it features a 3D-printed monochrome cityscape used as a “canvas” on which data visualization is projected. Spectacular, immediate, and physical.


The exhibit also features a custom dashboard of city vital signs, developed by my old IBM City Forward team. Two special panels face Michigan and Jackson for data-flâneurs and other passersby.


Optional caption of above photo: self-portrait with all professional pursuits to date, 2014.

Notes on a “smart” tour of Italy


I’m recently back from a short tour of Italian cities — Milan, Turin, Rome and Florence — where I met with entrepreneurs, company leaders, academics, and government officials on the topic of “smart cities”.

The term “smart city” has received some cogent criticism of late. (See Greenfield and Townsend.) It’s a marketing buzzword that’s become a policymaker catchphrase and, at least in the United States, is met with whatever just precedes skepticism. But elsewhere in the world, the phrase seems earlier in the hype curve. The overwhelming sense I got in Italy is that “smart city” means everything — or possibly nothing — and is code for “what does technology mean for making our cities better?”

The simplest way I heard that question put was by an editor of La Stampa newspaper who noted that when the iPhone came out no one knew what “smartphone” meant. But now, as he said, everyone understands the difference between a feature phone and a smartphone. The implication was: when will we all have a common understanding of the “smart city”? Many city leaders wonder the same thing. I recently had a minister of a country ask me what software needed installing “to get a smart city”. /facepalm

Before attempting an answer at that let’s situate back in Italy. Italian cities are relative latecomers to the the open data/smart city/networked urbanism world. While European cities like Copenhagen, London and Barcelona race ahead it seems that Italian cities are only just embracing the concept. Many reasons were offered to rationalize this while I was there.

The first impediment, an entrenched bureaucracy with zero motivation to change the status quo, was the most common complaint, though I often thought of my own city — and its legacy of machine politics — as one example where the chief executive, in this case our mayor, confronted that bureaucracy head-on and was able to relatively painlessly make open government and nimble IT standard operating procedure within city government.

Leadership, especially at the municipal level where the reality of life is at its most immediate and the buck cannot be passed to a “lower” level of government, is absolutely critical. I saw this in a few cases in Italy. Mayor Piero Fassino of Turin seems to get it. Turin, like Chicago, was a town made prosperous through much of the 20th century by manufacturing. With its reliance on the automotive industry and the pressures of globalization Turin struggles, like Detroit, with market diversification and the cultural warping brought about by the primacy of the automobile.

But Turin seems to have turned it around. Downtown is as lovely as the pedestrian-friendly city centers of other Italian cities, finally, and their industrial base has turned their manufacturing excellence into an asset for branching into other fields beyond automotive. (In fact, the governor of Michigan was in Turin when I was there to figure out just how they’ve pulled it off.) Like Mayor Emanuel in Chicago, Mayor Fassino is a strong, nationally-known political leader who served in the central government for many years. His ties to the Italian parliament but singular focus on Turin has given rise to the most comprehensive smart city plan in Italy.

So, yes, leadership is key. But this is not a particularly useful insight. The question is: why are Italian leaders averse to embracing technology in the way that their other European peers do? What I heard, obliquely, is that the system is set up such that leaders endeavor to please their party rather than the civic populace. But how does this not characterize most political systems, the US very much not excepted?

The difference, I think, is a lack of critical pressure from outside of government. While I met with many civic innovators, activists and hackers, the groups seemed fragmentary — or, rather, without a real center of gravity. That center elsewhere in the West is almost always a fecund resource for building things, a ready supply of raw material — and it is almost always open, machine-readable, frequently-updated data about how cities are being used. The open data movement is nascent in Italy and this too is something that can really only be changed through political will and policy change. It’s the catalyst, the platform, for any smart city.

I also got an earful about the twin red herrings of open government: “What about privacy?” and “Won’t giving people data about the city create too much expectation for more?” These are both commonplace reactions and litmus tests for the fear attendant in political cultures who believe that information is the government’s to control, rather than the people’s to own. It is, after all, city-dwellers using the city that generates — and pays for — the data.

Privacy, obviously, is paramount — moreso in a world after Edward Snowden and revelations about the NSA. But Italy seems to have a handle on this, at least legislatively. One example: It’s been a few years since I was last in the country and I was struck by the amount of signage very forthrightly delineating areas of video surveillance. It’s actually somewhat gaudy, but all the signage suggests a culture at least activated about the implication of technology on privacy. If government can be proactive about alerting people to surveillance surely they can be thorough about protecting privacy in open data releases, the vast majority of which contains no personally identifying information whatsoever.

Area Videosorvegliata

Challenges aside, Italy actually has much going for it. Culturally there’s a strong foundation for smart urbanism.

Italy basically invented urban planning, the architecture-like approach to city-scale layout that is at least nominally at the heart of urban planning today. Pienza, perched hill-top in Tuscany, is credited as the birthplace of Renaissance Urbanism and even today evokes a kind of civic intelligence that should be instructive as we move into overlaying networks on public space. There’s no reason Italy shouldn’t feel more than normally motivated to claim first place in smart urban design through technology.

Even when not centrally planned, the very age and unplannedness of Italy’s city centers lays out a path for smart urbanism. Narrow, labyrinthine streets may confound mapmakers, but they are the very essence of complete streets — a concept Italy has embraced since before it was a transportation engineer’s meme. Cities in Italian cores are open in a way that the “smart city” idea of openness ought to emulate. Americans may hate them, but the ZTL (Zona a Traffico Limitato) is a model for how municipal governments should treat the entire public way: access for everyone, including its non-physical vital signs like data.

Italy understands the power of design, period. And has built a global brand on it. Fashion is what’s most known, but let’s not forget the Renaissance and automobiles and the overall savoir faire of Italians in general. There’s no more ripe space to apply this distinct global advantage than in the service of Italian cities.

Italians love mobility. They may not have been the first in Europe with high-speed rail (though the Frecciarossa is pretty great), but who can deny that the culture of scooters and mobile phones — the latter of which was far more ubiquitous far earlier than any country I’ve ever known — doesn’t point to a citizenry ready for decentralized, data-informed urban life?

Italy perfected the city-state after Greek models and, as of the first of this year, the country is moving towards governance models that recognize the power of metropolitan regions at scale. The Città metropolitana changes to the Italian constitution amalgamate regional governance into 10 (possibly 14) conurbations. This bodes well for smart cities, since such are built on standards and interoperability between all players.

Opportunities are plentiful for smart cities specific to Italy:

  • Transparency in a political culture tainted by high turnover and data opacity.
  • Technology-enabled navigation where streets are a complex warren of restrictions and barely-Euclidean geometry. GPS just doesn’t cut it.
  • Italian is one of the less-spoken European languages and yet their economy is fueled by visitors. This is opportunity for technology.
  • As with most countries, energy independence has equal geo-politically importance with environmental stewardship. Italy’s historical manufacturing and engineering legacy can be retooled to capitalize on this new reality.

When I worked for the City of Chicago we never used the phrase “smart city”. As an abstract concept, it just wasn’t part of our day-to-day work. For one, cities can do smart things wholly apart from technology. “Open government,” “civic innovation,” even “networked urbanism” were what we called what we did, when we called it anything at all.

I was pressed in Italy to define “smart city” and the answer is that cities have always been smart. They are one of humanity’s greatest inventions. Italy especially has good examples of well-wrought, thoughtful urban experiences.

But the actual term of course has a valence today apart from this. Smart cities build upon the density, diversity, and proximity that characterize all great cities through sophisticated mechanisms of listening to their own vital signs. “Smart” here is self-awareness — whether through advanced, open sensors, policies of open data, or systems for citizen engagement. Feedback loops, abetted by technology, at hyperlocal resolution and close to real-time are the agents of diagnosis and change for the smart city.

Italy can make the leap — and in fact can capitalize on what has made it a center of urban innovation historically: design skill, organic urbanism, hyper-mobililty, and metro regional governance. “Smart” or not, it’s time to upgrade that urban feature phone.

From City work to city work

Pleased to announce that I have recently joined PositivEnergy Practice as its president. PEP, as it is known, is a small engineering firm in Chicago that does big things — as in really tall and very complicated things.

I’m leading a group of talented engineers who design (and re-design) buildings, districts and cities. PEP’s speciality is high-performance, clean tech engineering focused on new structures, retrofits, and urban ecologies of infrastructure. Much of our work is done for — or in partnership with — architecture firms.

PEP_Logo_Full_color_blk text 500px

Exciting times, these. The tools of data analytics (and the open data itself pouring out of many cities) make this an optimal moment to bring performance simulation to a new level. Likewise, as devices and sensors proliferate throughout our urban areas design and engineering firms — who already understand complex physical systems and the human needs of the spaces they engineer — are well-positioned to potentially remake the notion of “smart” cities and infrastructure.

Crain’s has a short piece on this today as does the PEP website.


When tech culture and urbanism collide

Cloud Gate, Chicago IL

The city is the most complex machine ever invented. Running optimally the city generates opportunity and provides a platform for interaction, ideas, and improvement. As a concept the city has been iterated-upon, smashed and burnt to the ground, rebuilt, deliberately-designed, haphazardly-organized, and generally resilient for many millennia. But the city is still a human invention and every single one is flawed, many horribly so.

Which makes cities the ultimate problem set. For the engineering-minded and entrepreneurial the challenge of cities has enticed since the first itinerant merchants decided that they were no longer itinerant. Cities for centuries have been the locus of commerce and the crucible of invention (often from necessity). Demographically, they are on a path to be called home to 70% of the world’s population by 2050. If you want a market — or are driven by the moral imperative of figuring out how to get that many people to live in relative harmony — cities are your platform.

And yet some of our most creative problem-solvers — entrepreneurs and technologists who invent the things that have changed our lives radically over the last decade — seem not to grasp what makes cities so dense with opportunity in the first place. There’s a disconnect between the culture of technology companies and what makes for smart urban policy.

Recently SPUR‘s Allison Arieff noted the ways that tech companies have enthusiastically co-opted the language of urbanism — “community”, “the commons”, “town halls”, etc — while not actually embracing any of what that means in the real world. “Why,” she asks, “are tech companies such bad urbanists?”

The answer is that suburbia is in the very DNA of Silicon Valley, which makes it part of the genome of tech culture writ large. Though many of the biggest companies in tech now are less than ten years old, Silicon Valley itself came to be during the boom of late-20th century car culture. (The garage itself is mythical in startup lore.) Anti-density land use, zoning laws that abet sprawl, work-life patterns fashioned around automobile commuting — these traits are as central to Silicon Valley as Stanford, libertarianism and foosball.

Tech headquarters in the Valley (and many other places) are built as simulacra of cities. Corporate campuses sport their own transit systems (some of which venture out into the city itself, altering socio-economics in their path), bike share systems, restaurants, and health clubs. Facebook’s HQ even has a faux downtown, something straight out of a 1980’s shopping mall design handbook. Unlike a mall, though, none of this is open to the public. While “community” may be the buzziest of words in tech parlance, this is community-as-facade, a highly engineered experience that still revolves around automobile commutes and forecloses true serendipity. It would be funny if it weren’t such a problem: For all their embrace of futurism, tech companies in the Valley are merely recapitulating the failures of a bygone age of suburbia.

And yet San Francisco is the preferred place to live for many of these employees. Which is great, except that their salaries — out of synch with the communities in which they live — generate an economic force that skews rents, forces evictions and creates class stratification driven almost entirely by corporations not located in the city. It’s the reverse of a bedroom community. Wealth drives people into cities while keeping the engines of that wealth outside the city.

But this is 2013, not 1960. Today’s tech companies are not stupid. They understand the benefits of the city from a business perspective. (Which is why Amazon, Twitter and Zappos are all building headquarters in the middle of cities.) It is where the talent lives, its many modes of transportation chime with companies’ commitment to the environment and employee health, and cities are very often the conceptual blueprint for social innovation on the web, as Arieff points out. But understanding the benefits of urban life and attempting to create them as self-contained units that simulate a city — as much of middle America did in the latter half of the 20th century with gated subdivisions, office parks, and shopping malls — are two very different things.

Which is more than odd; it’s contradictory. The web itself, fount of so much innovation in the tech world, is the network embodiment of density, diversity and proximity — precisely the characteristics of cities. The sidewalk was the original social network; the corner store the original just-in-time retailer; the town square the original blogging platform. Given this symbiosis one would think more of an effort would be made in tech circles to understand the precepts of urban design.


So how do we change this? What might we do to set the sights of our smartest technologists towards sustainable urban design?

A start would be to remind tech companies of one of their core principles: user-centered design. Understanding city life means living city life. Not just commuting to it or from it and certainly not believing you understand a person’s situation just because you pass him or her on the street from time to time. The best products are those that begin with a user’s motivation and needs. They are empathetic applications. To crack the nut of urban-scale opportunity — and there is a lot of it, just look at the “sharing economy” successes of Uber, Airbnb, and Zipcar — technology must be built amidst the same forces that create the problems it is trying to solve.

And those problems must be meaningful and relevant to cities, per se. Nine times out of ten the first image in an ad or a presentation on the subject of smart cities will be of a traffic jam — as if congestion were the number one problem facing the city. It’s a very suburban view of what an urban problem is.

Is the self-driving car really what our rapidly-urbanizing world needs? Every single one of our ballooning population in their own hermetic cocoons? That too is a suburban view of the problem, a moonshot to an uninhabitable moon.

Vibrant, safe public spaces; shared, multimodal streets; exemplary education systems that propel people from early childhood through post-secondary; affordable housing — these are the issues that make or break cities. Or, put another way, these are the problems worth solving because they are worth a lot. Yes, in economic terms. Venture capital is all about risk and return. That risk (and potential incredible reward) is splayed out in every city in America.

To read certain of the screeds against the city (and responses to Arieff’s column) you’d think no entrepreneur or developer was having any success tackling urban opportunities. But that’s simply not true. We can build upon the success of the work being done at the intersection of technology and urban design, right now.

For one, the whole realm of social enterprise — for-profit startups that seek to solve real social problems — has a huge overlap with urban issues. Impact Engine in Chicago, for instance, is an accelerator squarely focused on meaningful change and profitable businesses. One of their companies, Civic Artworks, has set as its goal rebalancing the community planning process.

The Code for America Accelerator and Tumml, both located in San Francisco, morph the concept of social innovation into civic/urban innovation. The companies nurtured by CfA and Tumml are filled with technologists and urbanists working together to create profitable businesses. Like WorkHands, a kind of LinkedIn for blue collar trades. Would something like this work outside a city? Maybe. Are its effects outsized and scale-ready in a city? Absolutely. That’s the opportunity in urban innovation.

Scale is what powers the sharing economy and it thrives because of the density and proximity of cities. In fact, shared resources at critical density is one of the only good definitions for what a city is. It’s natural that entrepreneurs have overlaid technology on this basic fact of urban life to amplify its effects. Would TaskRabbit, Hailo or LiquidSpace exist in suburbia? Probably, but their effects would be minuscule and investors would get restless. The city in this regard is the platform upon which sharing economy companies prosper. More importantly, companies like this change the way the city is used. It’s not urban planning, but it is urban (re)design and it makes a difference.

A twist that many in the tech sector who complain about cities often miss is that change in a city is not the same thing as change in city government. Obviously they are deeply intertwined; change is mighty hard when it is done at cross-purposes with government leadership. But it happens all the time. Non-government actors — foundations, non-profits, architecture and urban planning firms, real estate developers, construction companies — contribute massively to the shape and health of our cities.

Often this contribution is powered through policies of open data publication by municipal governments. Open data is the raw material of a city, the vital signs of what has happened there, what is happening right now, and the deep pool of patterns for what might happen next.

Kicked off by and, the open data movement has been replicated in most major Western cities. There’s no doubt this data has been put to good use by people and organizations outside of government. Chicago’s ecosystem of “civic hackers”, for instance, is unparalleled, generating hundreds of applications and analyses that make the lives of Chicagoans better. School data, lobbyist data, foreclosure, zoning and land use data, health atlases, snowplow-tracking data, real-time transit data, incarceration data, food-borne illness data — all these sets have been usefully translated into applications that change the way the city is used.

Tech entrepreneurs would do well to look at the organizations and companies capitalizing on this data as the real change agents, not government itself. Even the data in many cases is generated outside government. Citizens often do the most interesting data-gathering, with tools like LocalData. The most exciting thing happening at the intersection of technology and cities today — what really makes them “smart” — is what is happening at the periphery of city government. It’s easy to belly-ache about government and certainly there are administrations that to do not make data public (or shut it down), but tech companies who are truly interested in city change should know that there are plenty of examples of how to start up and do it.

And yet, the somewhat staid world of architecture and urban-scale design presents the most opportunity to a tech community interested in real urban change. While technology obviously plays a role in urban planning — 3D visual design tools like Revit and mapping services like ArcGIS are foundational for all modern firms — data analytics as a serious input to design matters has only been used in specialized (mostly energy efficiency) scenarios. Where are the predictive analytics, the holistic models, the software-as-a-service providers for the brave new world of urban informatics and The Internet of Things? Technologists, it’s our move.

Something’s amiss When some city governments — rarely the vanguard in technological innovation — have more sophisticated tools for data-driven decision-making than the private sector firms who design the city. But some understand the opportunity. Vannevar Technology is working on it, as is Synthicity. There’s plenty of room for the most positive aspects of tech culture to remake the profession of urban planning itself. (Look to NYU’s Center for Urban Science and Progress and the University of Chicago’s Urban Center for Computation and Data for leadership in this space.)

And what about the built things themselves, actual physical architecture? Where is the technology that causes us to rethink our domiciles and places of work, recreation and worship in the ways we’ve remade communications, mobility, and manufacturing in the last decade? Where are the tools that make urban districts as responsive to changing uses as metal and glass have been made malleable by 3D design tools? Where, to put it most like a William Gibson novel, is the “architecture that flickers and buzzes like faulty neon, that is washed with intermittent static like a weak video signal”?

Architect Doris Sung, for example, has begun experimenting with materials that change shape based on external stimuli, much like human skin. And it’s not just materials science, but high technology as well: the increasing instrumentation of cities with sensors and actuators creates a literal platform for designing new experiences. This is what technology startups in particular are good at.


Scientists have a term called “positive suboptimality” which refers to the resilience of systems which are not specialized for a particular use (or which at least weather changes in external conditions without breaking). Most often this concept is used to describe how nature has evolved not with the fittest organisms but with those fit enough to survive changing conditions. Super-specialization means extinction.

It’s a concept that could usefully be applied to cities. Precisely the way cities fall short of perfection is what gives them resilience and opens up opportunity where none previously existed. What appears broken and yet persists in cities may simply be evidence of fault-tolerance, something all technologists strive for with their products.

Molly Turner nails why this so rubs some technologists the wrong way:

[T]ech innovators also like to work on a tabula raza, void of constraints, preconceived obstacles or even the benefit of institutional knowledge. And while sometimes that leads to genius strokes of ingenuity, other times it means unknowingly repeating mistakes of our urbanist past, such as becoming overly reliant on the wisdom of the crowd or failing to account for important social or cultural divides.

Understanding how cities bend but don’t break, understanding how they do indeed break, and understanding how much of where we live influences the solutions we try to fit to problems are the greatest lessons that tech can take from urbanism.

City officials are often asked “how do you turn this place into the next Silicon Valley”? Most smart folks in economic development answer by saying that they don’t want to. They want their city to capitalize on its own legacy, assets, work ethic and skills. For many years that statement was just politicking and boosterism. But it isn’t anymore. Cities are where the problems exist and where the talent is moving. It’s easy to see how this equation sums and time for tech culture to do the math.

What the public way means in the networked age

Let’s start here. I want our relationship with public objects to feel like this.

Crosswalk highfive

It does not feel like this currently.

But let’s back up to a street scene in Chicago in the late 1930’s for context.

You’re walking at a clip downtown because it’s storming. You hunch over and tilt your umbrella into the sheeting rain as people scamper for cover and taxis. Luckily your destination is this building and you know, thanks to having walked this route before (and a clever architect), that you don’t even have to look up to figure out that you’ve arrived.

On both the Clark and LaSalle sides of the Field Building (as it was originally known) are symbols in the sidewalk pointing to the entrances. F for Field, arrows for which way to turn.

Photo 1

If noticed at all, these small, plain sidewalk icons could easily be mistaken for architectural decoration. But they were designed specifically around the umbrella use-case.

You may also have seen compass markings in the sidewalk just as you step out of a subway stop. Easy to overlook, but incredibly useful if you’re disoriented emerging onto the surface grid.

These examples represent embedded, passive information that’s not screaming for attention but placed precisely where you might need it. It’s information design in the physical architecture of the public way.

Today there’s a new usage scenario. You’ve seen it a thousand times. Urban pedestrians staring down at their smartphones, half-in and half-out of the moment in what Amber Case calls “temporarily negotiated private space”.

Maybe the F-marks would be missed by these otherwise engrossed city-goers, but they are a great example of ambient information in city environments. And we’re going to need a lot more of that as we increasingly negotiate our public space through a mixture of physical and digital awareness.

What’s new is the sheer volume of mobile, networked technology in our public spaces (and everywhere else). It’s an opportunity to “embed” information in new ways and to customize it to very specific places and moments in time.

Typically sensors and wireless connectivity claim the spotlight in discussions of the networked city, but I’d argue we’re missing a real opportunity not to use new technology to make the built environment more legible.


Most obviously, embedded digital information can aid in safety. The video of the girl in China on the phone falling through the sidewalk is one end of a spectrum of examples, most of which are instances of obliviously texting pedestrians falling off piers, walking into traffic, or smashing into one another. And it’s probably getting worse.

Rudimentary systems that might prevent such calamity do exist, but with a focus on motorist, rather than pedestrian, alertness at crosswalks. Crosswalks and Xwalk both flash lights to make the zebra stripes more prominent. You could imagine a more nuanced system which assumes pedestrians are looking down (at their devices) and flashes or changes color when the traffic signal is about to turn green. Interaction with devices via Bluetooth or NFC is not inconceivable either. Scenario: if the device is engaged in use, assume distraction, and alert accordingly. A responsive public way that’s in a positive feedback loop with its users.

Accessibility is another category of use for the responsive public way. Crosswalk design for the visually-impaired is not a problem for individual intersections — high-pitched chirping signals — but it doesn’t scale for large cities. The cacophony of a city full of bleating traffic signals would be the kind of noise pollution that causes New York City to impose fines on honking motorists. But if the crosswalk itself was open to digital development you could imagine white canes, phones or other personal devices alerting the visually-impaired pedestrian that the street was open to cross.

Basic convenience may be an even better rationale for a legible (and writable) public way. Why perform a digital transaction at a modern-day parking meter when you can text it or use an app to pay before leaving your car? Think driving snowstorm. Think having three kids in the backseat and the meter is 100 meters away. Think not having a credit card at all. All good reasons. This is getting closer to the high-five moment of a digital public way.

If we begin to think of a truly responsive public way we have to rethink what “public” means in the digital age. The analogy here is a city’s information. Getting at a city’s vital signs and the records of public servants has been a long slog for transparency advocates. In the days of exclusively paper-based record-keeping Freedom of Information legislation was one of the only ways to do anything with public records. Then came digitization and the same barriers obtained. You had to go through legal maneuvers to get at it — and even then it was not particularly useful beyond reading it. PDF’s largely made this information static, opaque to computer-aided parsing and tabulation. But the advent of machine-readable online document standards and a shifting political climate towards the value of open government has unlocked torrents of data in cities around the world. What’s come of this can only be described as a new kind of civic engagement: open data has bred an ecosystem of secondary applications, analysis, and interactions that governments could never conceive of, much less produce themselves.

The infrastructure and objects of our current public way are in their paper period.

Certainly, there are screens scattered throughout. Public transit leads the way here. Buses that generate location data, subway platforms that announce arrival times, etc. There’s some digital marketing along the way that occasionally serves up alerts or public service announcements. And every so often you’ll see an advertiser attempt something (barely) interactive — a QR code for more information, typically. But there’s no platform in the software and open data API sense of the word in the physical city.

And yet, many of our public objects are networked — the foundational requirement for a responsive system. Public bikes and bike stations, bus shelters, parking meters, and of course every light pole with a public access point clamped to it — all these things are network endpoints. But they’re not interconnected and they are not open to interaction. There’s no interface for third-party development.

Some City of Chicago Department of Transportation construction projects feature NFC and QR codes on signage onsite that link to information about the project. That’s the paper stage, incunabula. The vision is for direct access to mobile-optimized applications for business permits in situ. More promisingly, the information system underlying the upcoming roll-out of public bike sharing in Chicago (e.g., real-time bike availability info) has an open API. 4,000 bikes and 400 stations will be open to development and interaction in the way that the city’s open data portal is. A step away from paper towards platform.

There’s an inverse to this dynamic, equally ripe with opportunity. The impact of city-dwellers’ use of digital technology when out-and-about has yet to make a any real impact on physical urban design. Mayor Nutter of Philadelphia got a good laugh last year when he released an April Fools Day video touting newly-striped “texting lanes” on sidewalks. But that was parody (though thinking about it a little longer makes it slightly less parodic).

Surpassingly few cities and urban design firms actually give thought to how technology is changing the way the city is used. Which is odd, since so many of the problems that online companies grapple with — what it takes to create a vibrant, safe public space, as one example — have pretty well been solved, if not perfected in implementation. There’s the Facebook approach, which is essentially suburbia: a gated network of affinity that disallows chance encounter and serendipity. And there’s the Twitter approach which is all about non-reciprocal engagement and diversity. (It’s no coincidence that the founder of Twitter is a dilettante urbanist.) This is a choice between mall culture and real urbanism and I fear that our information architects and built environment architects have not even begun the conversation.

The sidewalk is the original social network and its lessons have much to teach the designers of our digital overlay of public spaces.

In Chicago, it’s coming together: a robust open government community of engaged developers (and increasingly savvy residents) fueled by an administration actively publishing data and working to make sure the vendors of our public objects treat it as a platform. There’s a long way to go, but we’ve etched some symbols in the pavement and we’re hoping you follow our lead.

High five!

Welcome to City Forward

“I felt the physical city to be a perfect equation for a great abstraction.”

Homage to Victory Boogie Woogie #1, Leon Smith

It’s hard not to see the reasoning behind that quote from the Mondrian-acolyte painter Leon Polk Smith when you learn that he grew up amidst the gridded fields of Oklahoma before moving to New York City.

But it’s instructive in another way. The physical city certainly is the expression of abstract things. The desires of its inhabitants, the collective aesthetic of cultures, the movement of goods, the education, safety, and utilities that strengthen or weaken it.

What’s been missing is a good way to describe that equation. And that’s why I’m pleased to have been a part of the development of City Forward. This site is a first step in aggregating, visualizing, and socializing the abstract vital signs of cities worldwide to permit a better understanding of the world we live in. It’s rich with functionality — honed over many months with amazing feedback from our beta community — to provide a single place to work with the data our cities are opening up.

We’re not alone in this endeavor and we hope to play a critical role in the ecosystem of applications that are making public data more useful, insightful, and actionable.

City Forward has a lot to offer. I encourage you to learn more about what it can do (perhaps watch the video) and to create your own explorations of the data within. Help us find the equations so we can describe a better future for our metropolitan regions.

Lessons from unmaking urban mistakes

Over there, a woman’s walking down a city sidewalk.

Woman on a city sidewalk

She’s doing all kinds of things at once: walking, texting, presumably not being hit by a biker, even perhaps being stalked. Framing this in terms of interaction design, we might think of it as a moment of simultaneous navigation of multiple information interfaces. One of these interfaces is rarely thought of as such; it is the skin of the built world: the sidewalk, curbs, building entrances, shop windows, signage, and welter of moving elements (human and machine) that cross her path. Another is digital: the menus of an iPod, or an application on a smartphone, a GPS map, an SMS keyboard.

Thinking more deeply about only these two — the interface of the street and of her device — it’s clear we’re considering two highly designed modes of interaction. The first by architects and city planners, the second by computer engineers and UI designers. Millions of times a day in a single city these two interaction modalities are layered on top of one another. Now consider that the two communities of practice that develop these interfaces rarely interact, much less formally share knowledge or design in tandem. This is a problem, for both communities partake of city-making.

There aren’t many truly complex things the human race has been making longer than cities which is why it seems irresponsible to me that the participants in what Adam Greenfield calls read/write urbanism would not look to the historical record for insight — especially as we seek to learn from the mistakes we’ve made with the built environment.

But what does this actually mean?

Let’s use one example that currently enjoys a lot of debate and which has had a direct impact on the above pedestrian scenario: urban highways and the various movements to undo them.

A Transit Program For The Los Angeles Metropolitan Area, 1939

A Transit Program For The Los Angeles Metropolitan Area, 1939

Planning for urban freeways in the first half of last century is often obscured by the white-hot glare of construction that followed from the US Federal Highway Act of 1956. Early 20th century designs emphasized intra-metropolitan mobility, supplementing the dense grid of cities with multiple interchanges, relatively small facilities, and overall attention to harmonizing with the urban fabric (as with multiple central parkways, in the map above). These early freeway designswere built to integrate holistically with other modes of transportation such as railways and bus lines and some even included land redevelopment as part of the construction plan. Because these plans grew from the city itself so, at this point, did the funding mechanism: property taxation, bonds, and special assessment districts (source: JAPA, “Planning for Cars in Cities,” Brown et al, 2009).

This mostly-local method of funding was not adequate to the scale of superhighway infrastructure being planned and so the trajectory of development followed a different course. With centralized funding from the federal Highway Act, itself fueled by new gasoline taxes, the engine of interstate highway construction roared to life. The arteries being built — call them vehicular broadband — eventually stretched through and into the nation’s cities, despite Eisenhower’s initial plan to terminate them at city limits. As the responsibility for construction fell to federal engineers with a different set of priorities than local city planners, nuanced integration of the highways with the urban landscape was largely forgotten.

Traffic on the Harbor Freeway, I-110, July 24, 1958.

Traffic on the Los Angeles Harbor Freeway, I-110, 1958

There was a lot to praise about the Interstate Highway System. High-speed transit and increased mobility changed the very culture of America, permitting easier mobility, increased opportunities for employment, and a broader discovery of the nation itself. But these highways had unintended consequences too. The demand for destinations along the highways induced a period of development that has led to sprawl, exurbia, and an entire class of highway-only development.

In urban areas the effects were compounded by the density of travelers, leading to congestion and pollution. Worst of all from the holistic perspective of the city, urban highways sliced through neighborhoods, disconnecting the human-scale interactions and pedestrian mobility that had defined the street-level vitality of city life. Urban highways often blighted, segregated, or simply erased communities while creating both a physical and psychological barrier to local movement.

By the end of the 20th century some municipalities had come to understand the adverse consequences of urban highways. Portland led the way in 1974 with the demolition of its Harbor Drive Freeway. Other highway removals or reroutings included the West Side Elevated Highway in NYC (after a collapse and contentious public debate), the Park East Freeway in Milwaukee, the Embarcadero Freeway in SF, and most famously the burying of the I-93 highway in Boston known as the Big Dig.

Though all related to unmaking highways, these projects were the result of quite different initial circumstances, engineering approaches, and political machination. And yet each project was an attempt to undo damage done to the urban fabric, to correct a mistake. What might we learn from these examples as we consider the information architecture of cities?

(1) Unintended consequences accompany any design of a complex system.

It would be hard to argue that designers intended the linear parking lots that many of our city freeways have become. They simply did not understand the nature of induced demand: build it and they will come — at which point you’ll learn that you didn’t build it big enough. This is cyclic, congestion-abetting design, however unintended.

Yet I mean not to equate unintended here with negative — at least not entirely. Take the construction of I-93 through Boston’s central business district. There’s no doubt it rended the city in ways its still suffering from, but as the elevated roadway curved northwest at Atlantic Avenue it effectively created a wall between the North End, Boston’s oldest residential community. In important physical and psychological ways, the North End was preserved by this severing of the formerly continuous urban fabric. (While many in “urban renewal” circles saw the North End as blight to be removed, the publication of Jane Jacobs’ Death and Life of Great American Cities is credited with preventing it from being razed as Boston’s West End had been shortly before.)

The North End’s Little Italy neighborhood is arguably the most authentic in the US. The scale of interaction is utterly human, its streets and buildings echos of usage rather than overlaid standardization. One need only look to the Disneyfied Faneuil Hall marketplace just to the south to see what commercial development of a historic area could have meant for the North End. The urban freeway as an unintended factor in historic preservation.

Big Dig, before and after

Left: I-93 cutting through Boston's central business district. Right: The Rose Kennedy Greenway built atop the buried highway.

But I-93 has been buried and the barrier to pedestrian movement to the North End is mostly gone. And so is the barrier, perceived or real, to the forces of gentrification and large-scale development that characterize so many historic districts today. The consequences of this remain to be seen.

One might point out that high-performance computing today gives us the ability to model complex system dynamics, simulating possible outcomes of given decisions. But these are early days — and even if a truly comprehensive, responsive city simulation could chart the probability curves for every possible outcome we’ll always have to confront decisions that have implications for a future further out than we can currently predict. (Note that early supporters of the automobile in cities rested much of their argument on a very obvious environmental benefit: cars didn’t leave piles of poop in the street.)

So, while technology does not seem to offer short-term hope for predicting the unintended in complex systems, the invisible architecture of data and services does afford more nimble rearrangement and redeployment than do viaducts of concrete or steel girders, at least in theory.

Cities, of course, are a model of resilience. Buildings learn, the street finds a way, patterns of usage can be reshaped — albeit with the pace of a medium made of brick and mortar. In this way, but with far more speed and flexibility, the architecture of information and services in cities can be built not to prevent unintended outcomes but to enable them. If we agree that inadvertent outcomes are unavoidable in sufficiently complex systems such as cities, then the opportunity we’re presented with in matters of digital design — the lesson, so to say — is that extensibility should be a primary goal. It must, above all, encourage adaptation.

William Gibson tweet

(2) Throughput is not connectivity.

The goals of the Interstate Highway System were simple enough: increased volume of movement at increased rates of speed with fewer accidents. (It is no coincidence that the frontispiece to the 1968 “The Freeway in the City” report to the Federal Highway Administration used this iconic 1909 photo of congestion at Dearborn and Randolph in Chicago.)

It seems likewise simple enough to note that vehicular broadband (a measure of volume-over-time) is not the same thing as mobile connectivity. Yet this misunderstanding — or willful blurring of two very different things — is the mulch from which so many problems with urban freeways grew. Plowing into the dense grid of local thoroughfares, superhighways sacrificed distributed human-scale connectivity of points A through Z for high throughput from point A to point B.

Cities have always been proto-internets of connection and interaction. There’s never only one way to arrive at a destination in a city; multiple routes make cities both diverse and fault-tolerant. But if we extend this analogy — or, rather, make it less of an analogy — to think of cities as information-processing machines, there are some fairly clear lessons to be drawn as we consider communications broadband and the larger implications it has for community connectivity.

Urban waterways, roads, and rail links are all networks of information as well as of goods. There’s value in these networks: information is moved, consumed, changed, combined and created. But there’s a finer level of detail too: at the human scale value is created by observation, being observed, and chance encounter. It’s a physical infrastructure that permits multiple channels of information flow — and this makes for a more efficient, diverse, and redundant system.

Diverse elements catalyze connections among themselves

Diverse elements catalyze connections among themselves

In their excellent Information Architecture of Cities L. Andrew Coward and Nikos A. Salingaros make this point most forcefully, assigning the term “fractal loading” to the ability of a single channel (in this case a sidewalk) to carry multiple forms of interaction.

A primary information exchange is a pedestrian going from one point to another. He or she observes things that are unrelated to the primary reason for movement. This information is functional; it can recommend secondary behaviors to the observer who is executing a primary information exchange. A successful city is one in which even simple movements are a rich and rewarding experience. Urban space therefore works by violating the “functional” rule of twentieth-century planning. Successful urban geometry serves a multitude of needs on distinct scales; some strictly functional and others pleasurable.

Walking to an appointment in a European capital (indeed, in most of the world’s cities) can be more pleasant than a drive to achieve the same end in a North American metropolitan area. In the former case, one sees other people, some of whom one might wish to talk to; observing others may provide clues on social currents and interactions; window displays provide information on available products and services, etc….

Fractal loading has the crucial feature that removing the largest level of scale leaves all the other smaller levels of scale intact. Not having to execute a definite errand, undirected wandering in informationally-rich cities allows the visitor to accept recommendations offered by different visual environments, and to discover the results of such movement. It is thus possible to learn the rich and complex “visual language” of an unfamiliar city that has only changed gradually over hundreds of years. By contrast, in a non-fractal deterministic environment lacking all lower levels of scale, if you don’t need to go somewhere, you will most certainly avoid doing so — every movement is a chore, with nothing new to learn.

Non-fractal, deterministic, monofunctional — all descriptors for urban freeways, inhibitors to the kind of freeform interaction that have characterized cities from their inception.

The lesson for digital design for urban spaces is less obvious than it seems. Certainly there’s a corollary that can be made between the coming of vehicular broadband and communications broadband to the inner city. But the repercussions are not the same. Neighborhoods that lay in the path of urban freeways were ripped asunder in a way that fiber optic cables coming through will not do.

What we learn from a privileging of throughput over interconnection is that both are needed. Too often our discussion of the digital divide of connectivity focuses on getting the bandwidth in, leaving how it will be distributed and, most importantly, why it matters as an afterthought. For broadband to catalyze community and development in a city, an architecture that foregrounds people-centric interconnection needs to be laid. (We might call this second kind of digital divide one of digital literacy.) Otherwise it is just a wide pipe of little relevance, such as freeways that stretched to the coasts must have seemed to the people that experienced their ill-effects at street level.

There’s a good deal of funding available for broadband and urban initiatives such as Chicago’s Smart Communities Program seem like the beginning of an understanding of the local, small-scale work required to capitalize on large-scale connectivity. As more of the city itself becomes part of the network and as we move away from thinking of computers and mobile devices as the sole points of tangency of interaction we must remember that throughput means nothing without a diverse set of input/output choices.

(3) Catastrophic failure is an opportunity.

This should sound a chord familiar to those who preach “never waste a good crisis” in our current economic recession and it isn’t particularly novel — but the kinds of catastrophes that have befallen urban freeways is instructive.

Firstly there’s structural collapse. By definition urban freeways are grade-separated; it’s the whole point of permitting faster travel without colliding with local traffic. But this separation incurs engineering complexity and where there’s complexity there’s failure.

San Francisco Embarcadero Freeway demolition

San Francisco Embarcadero Freeway demolition

The 1989 Loma Prieta earthquake damaged transportation infrastructure throughout the Bay Area, prompting dozens of large-scale changes to urban connectors and bridges. One damaged artery, the Embarcadero Freeway, had been the focus of a failed campaign years earlier to demolish it and reconnect the city waterfront to its downtown. Even with the collapse, citizen opposition to demolition remained high (especially among local merchants who feared that the effects of the earthquake on their business would never abate if the freeway were not rebuilt). Eventually public opposition diminished and dismantlement begin in 1991.

The ultimate demise of New York City’s West Side Elevated Highway began in 1973, ironically, when a dump truck overladen with asphalt for repairs to the roadway caused part of the upper deck to collapse. Unintended outcome, indeed.

These failures were moments that demanded city leadership and community involvement. They forced people to think deeply about the effects of city freeways in a way that rarely occurs when a system is functioning nominally (if not optimally). Yet a less obvious form of catastrophic failure — social and environmental — characterizes urban freeways. These are slow-burning effects, and much-contested, but their cumulative effect (vehicle exhaust on public health, economic depression of formerly vibrant areas, cultural fragmentation) often amounts to a more powerful argument for redress than even collapse. And the solutions often solve more than the immediate problem. That is, when the problem is understood as not being solely one of engineering, having wide-ranging effects, the solution can be crafted to address the broader systemic ramifications.

Our urban information architectures have not yet suffered such catastrophe, but we should be mindful that the potential for such in a hyper-connected world of interactive urban elements lends itself even more readily to system failure. Certainly this is a lesson in redundant design, but more than anything it should highlight the infrequent opportunity that large-scale failure presents to those who envision a different way. In addition to planning for system failure of our nascent networked urban spaces we need also to look to the already-built failures of the tangible city for opportunities to redress them in new ways.

(4) All change is system-wide change.

Too often urban roadway remediation focuses narrowly on the merely infrastructural when really what needs undoing are the broader systemic effects.

One way to visualize the myriad follow-on effects of changes in a city is the practice of system dynamics. This approach, which uses positive and negative “causal loops” to show interconnection, has a varied history in its application to urban matters, but has received renewed interest of late with the sheer amount of data at our disposal and the maturing of analytical tools.

Consider this often-used example of system dynamics at its most basic.

Chicken and Egg

An increase in eggs forms a positive causal loop because it yields more chickens which also yields more eggs, closing the loop. Yet more chickens invariably leads to more road crossings (a positive vector), but more road crossings (i.e., encounters with motor vehicles) diminish the number of chickens, which closes the loop negatively. For this linked dynamic not to collapse on itself the number of chickens created from eggs needs to be greater than the rate at which they are killed off by getting to the other side of the road. And of course, this chart is unrealistically simplistic.

Chicken and Egg (complex)

This loop introduces variables in the process of eggs becoming chickens, including hatch rate and egg-laying rate, which are influenced by farmer hunger, weather, and chicken health — the last two of which are also variables in the frequency of road crossings (i.e., less when the weather is poor or chickens are not strong enough to make the journey).

Now imagine we’re not trying to map chickens crossing roads, but people, goods, and automobiles transiting a network of roads, each with different constraints and affordances. It’s the realm of the hellishly complex — though not necessarily chaotically so. It can be mapped and it is being mapped (trust me on this one), but the point is that, well before the graph looks like a spaghetti bowl, it becomes apparent that there’s no such thing as an independent action much less an independent system in a city.

The Big Dig and burying of the Central Artery in Boston is again instructive. Where once the elevated highway ran right through downtown is now a linear park system known as the Rose Kennedy Greenway. It’s a beautiful, mostly green strip of reclaimed space that, for every instance you’re reminded of how much more they could have done with it, you’re equally impressed that it was done at all.

But it is a perfect example that removing a variable from a system (in this case the highway itself) does not remove its effects. Downtown Boston spent over a half century responding architecturally, psychologically, and socially to the highway that carved through it. Much of this response consisted of ways of actively avoiding it, crafting better views, or leaving the area altogether for less fumy, congested climes. Put another way, the elevated Central Artery caused secondary growth patterns around it like a fencepost that alters the growth of a tree. Remove the post and the tree’s still warped.

Rose Kennedy Greenway

North End, Boston

The Rose Kennedy Greenway (top image) does not re-establish human-scale transit in the way that existed before the coming of the highway or as it does in the North End (bottom image) because the Big Dig did not concern itself with the secondary effects — the cross-system effects — on the urban tissue surrounding the highway. The Greenway is a phantom limb, a linear park that too precisely echoes a well-landscaped median, which still serves as what Kevin Lynch described as an “edge” (though not nearly in the way that the elevated roadway did).

The bitter irony is that the structures that were built to limn the edges of the Central Artery mostly turned away from it (towards the water or downtown), or thrust upward, or engaged in businesses that had no need for street-level interaction. These remain today and are a primary reason that the Greenway has not fulfilled its potential.

The lesson here? More explicitly than anything in the built environment, technologies of networked interaction cut across multiple systems. Effects ramify outward from causes much more rapidly, potentially causing cascading failure or outage. To understand the city as a system of interdependent systems should be the foundation of any information architecture that seeks, as Adam Greenfield puts it, to enable “lives in a dense mesh of active, communicating public objects”.

In the end — and one reason cities are so endlessly adaptive and unique — all urban tissue is scar tissue. As we co-create the second city of information and services we need only remember that there are plenty of ways to deal with scars, from covering them up to highlighting them as unique differentiators.

(5) It is easy to confuse the use of a system with the need for a system.

When the West Side Elevated Highway in New York City collapsed and was shut down over half the traffic it had formerly carried simply “disappeared”. Despite doomsday scenarios of the traffic that would flood into Manhattan, motorists adapted, changing routes or using other forms of transportation. Being multicursal, the city grid was well-situated to absorb the traffic that remained. Obviously this is much easier to do in a city with rich transit options, but the point is valid nonetheless. In a situation where a medium induces demand the removal of supply often means the removal (or at least mitigation) of that demand. (It causes one to wonder if all the expense of burying the Central Artery in the end was worth it. Might a grade-level boulevard simply have been sufficient?)

Confusing usage with need can be a convenient political tactic as it appeals to a superficial kind of “common sense” (e.g., “I do this every day, so obviously I must need to do this every day”), but more often than not it is merely an avoidance of thinking through consequences or distrust that people can adapt to new circumstances.

High Line 20th Street looking downtown

The High Line at 20th Street, looking downtown

Not only does this happen daily in smaller ways as motorists re-route due to road construction, but it overlooks even more radical examples of transportation infrastructure re-use in cities such as the High Line elevated park in New York City. The use of this linear public space has nothing to do with the need to remove dangerous freight traffic from city streets a century ago. A combination of lucky preservation of a private right-of-way, an engaged and creative public organization, and sufficient sources of funding all allowed one use to supplant another, totally irrespective of need.
Churchill supposedly said “We shape our buildings; thereafter they shape us,” but he forgot to close the loop. Our infrastructure certainly shapes us, fostering a sense of needing the uses for which it was designed. But humans are highly adaptive and as our needs change (due often to other effects of the city-as-system) so our usage evolves, changing the shape of the infrastructure itself.

The lesson here is a twist on the first point, above. Not only must we design for extension and adaptation, but as we embark on an empowerment of citizens through networked technologies we should recall that urban functionality has often been legitimized a posteriori, citing follow-on usage as proof that a particular solution was necessary. (A particularly deadly combination when coupled with the form-follows-funding pattern that doomed the early, localized designs for urban freeways last century.)

This fallacy will be even easier to rest on in the world of rapid prototyping and lightweight deployment of services. The runaway success of Twitter, for instance, is no proof that people needed 140-character status updates. It is proof that Twitter as a service was adaptable enough to accommodate unforeseen kinds of uses. Viewed as a platform rather than a specific application, both Twitter and the elevated metalwork that became the High Line foster new usage in a way that should inform any urban information architecture.

(6) Data alone is not sufficient for problem-solving, but an involved community informed with data just might be.

A few weeks ago I attended a Chicago community information meeting for residents of the wards impacted by the structural end-of-life of the Western Avenue overpass. This elevated stretch of roadway runs about 1,000 feet and allows motorists traveling north-south on Western to bypass the light at Belmont and Clybourn. It was originally designed to divert traffic away from the crowds that formed at this intersection, the entrance to the once-great Riverview Amusement Park.

This viaduct forms part of the western edge of the neighborhood I live in. Like much road infrastructure built in the middle of last century, it needs to come down for reasons of material fatigue. The question is whether to rebuild or try something different. The goal of the informational meeting was to express the city’s point of view in a project to build an at-grade intersection where the viaduct now stands.

Looking East

Looking south

Like the Central Artery/Rose Kennedy Greenway, much of the environment around the viaduct has responded in the last fifty years by remaking itself into something that no longer needs the pedestrian interaction that so characterized the amusement park intersection before the overpass. One side is big box retail and expansive parking lots (and a massive police station); the other is a somewhat shady assemblage of businesses and residences that do not invite chance inquiry or, if they do, are playing precisely off the hidden nature of their facades (i.e., Underbar and The Viaduct Theater). Adaptability reigns.

The session was eye-opening personally, bringing together local residents, three aldermen, and the engineering firm hired to survey the options. Set up like a science fair project, representatives from the firm were stationed at a dozen or so posters that started with the problem and ended with the proposed solution.

If you have made it this far in the post you will not be surprised to learn that I favor the deconstruction of the overpass. So I was amazed to hear residents ardently supporting it, not for any transportation benefit it afforded them (a good portion of neighborhood residents must drive out of their way simply to get on it), but for the barrier it forms on the edge of the neighborhood. They preferred the way the wall of concrete prevents people from “cutting through” side streets. Other motorists, presumably not neighborhood residents, loved the unimpeded travel, so rare anywhere in the city. Though how much travel time one can save going 1,000 feet over surface traffic causes one to wonder about perception versus reality.

travel times

Infographic from the Western Avenue Corridor Improvement Project

The engineering firm wondered this too and offered the above illustration of projected travel times for the two options, in table form below. (Both are projections because a rebuilt overpass will conform to new standard widths and have different characteristics than the current roadway.)

overpass boulevard
northbound 7:50 6:00
southbound 6:20 4:30

Clearly the data shows that travel times will improve in new at-grade boulevard, right? Well, yes, but even putting aside the opaque methodology and lack of current travel times in the chart, there are so many factors that were not quantified on the chart as to make it suspect. What happens to the non-arterial street traffic? How might travel times at this intersection be affected by the much more substantial plans for diverting (even burying) the intersection at Fullerton/Elston/Damen? With a newly human-scale intersection, have inevitable slow-downs caused by pedestrians been included in the calculations? Perhaps all of these have been accounted for, but it wasn’t obvious and, most importantly, the data isn’t easily reviewable by the public at large.

I’m still all for tearing down this blight, but I’m less convinced the method of community engagement deserves praise. Few people who held one conviction left with a different one when the meeting concluded and the city was, in the end, free to proceed with its plans (should funding avail itself).

There’s a better way and I believe it can found upon the fertile middle-ground between urban planners and interaction designers — the two communities of practice not noted for close ties at the outset of this post.

We’ve got more data about cities than we know what to do with. It’s lying in archives, published on government websites, being sensed from instrumentation in the environment, deduced from aerial imagery, and built from the ground-up by citizens updating, tweeting, and texting a kind of pointillist painting of city life.

There’s simply no reason that we can’t design tools to bring city-dwellers into a closer relationship with information that can inform their choices. All the raw materials are there: data, visualization, analytics, and tools for socializing one’s insight or commentary. This would not obviate the need for town hall meetings or public presentation of a city’s plans, but it would equalize the power imbalance, bringing a Jacobsian emergent planning ethic to a suasive critical mass that can interact with top-down planning around a common set of facts.

I’ll close by outright quoting Adam Greenfield, a voice in the field of networked urbanism whose echoes you’ve heard throughout this post.

I’ve always taught my students that if you scratch a New Yorker, you’ll find a committed urbanist — someone with intense and deeply-held opinions about the kind of trees that ought to be planted along the sidewalks, or the right way to organize bike parking, or ways to reconcile the conflicting needs of dogwalkers and parents with children in city parks. And the same thing, of course, is true of Mancunians, Singaporeans and Cariocas.

The point isn’t that all of their notions are going to be fair, practical, practicable or even remotely sensible, but that an immense body of pragmatic insight and — more importantly, in my view — passion for the city is going untapped. Pundits, bobbins and bureaucrats talk constantly about improving the efficiency of municipal services, but if improved information is a driver of that efficiency, why aren’t we even trying to gather all the incredibly rich data that’s just lying there, more or less literally begging us to use it? We have the tools, we have the models, we know what they’re good for and where they fall down. It’s past time to build on this experience and bring its lessons to bear on the places we live.

Past time for sure. But not long now.


Further reading:

Frameworks for citizen responsiveness, enhanced: Toward a read/write urbanism, Adam Greenfield.

Highways to Boulevards, Congress for New Urbanism.

The Information Architecture of Cities, Andrew Coward and Nikos A. Salingaros.

Planning for Cars in Cities: Planners, Engineers, and Freeways in the 20th Century, Brian Taylor et al.

Rethinking Urban Freeways, Mark de la Vergne and Anuj Bhandari.