Showing posts with label models. Show all posts
Showing posts with label models. Show all posts

Wednesday, April 4, 2012

Waterscape Urbanism

I was struck by a recent mis-use of the term landscape urbanism in this article from the Atlanta Journal Constitution on the need for climate change inspired floating homes.  Quoting  Thai landscape architect Danai Thaitakoo on the need for dealing with innundation.

"Climate change will require a radical shift within design practice from the solid-state view of landscape urbanism to the more dynamic, liquid-state view of waterscape urbanism," says Danai, who is involved in several projects based on this principle. "Instead of embodying permanence, solidity and longevity, liquid perception will emphasize change, adaptation."

While amphibious architecture is nothing new, and i agree that it will become more common in the future there are two points.  The first is minor - that of the mis-characterization of landscape urbanism as 'solid-state' and 'embodying permanence, solidity and longevity'.  If there's any flavor of urbanism that emphasizes change and adaptation, it's landscape urbanism - so i think there's a disconnect in that above paragraph.  Just saying.

Second, and more troubling, is the idea that we must react to climate change by building floating structures - rather than address the topic at hand.  It's similar in nature to dealing with semi-urban forest fires by designating fire-safety clearing zones of tinder and brush around houses, rather than looking at not building homes in these areas - or heaven forbid - letting them burn.  Or coming up with vertical farms due to our misguided agricultural subsidies and policies that make it impossible to grow a variety of food on terra firm.   

Its cause.  Not effect.  We spend way too much time on solutions to problems and calling it need-inspired innovation - rather than getting to the real root of the problems themselves.  May not be as press-worthy of sexy, but at least its real.

Friday, January 13, 2012

Science of Pedestrian Movements

 An interesting article from the Economist on 'The Wisdom of Crowds' echoes much of the seminal research of William Whyte (City), Edward T. Hall (The Hidden Dimension), and others that have closely studied the behavior of pedestrians and other users of public spaces. The interplay of cultural habits that tells us to step right or left to avoid collisions on a busy street can lead to a certain inherent poetic 'choreography' when viewed. There are different theories on how these actions are coordinated, and the article focuses on new scientific methods for predicting and studying pedestrian movements. 

:: image via The Economist
 As Jane Jacobs mentioned in The Death and Life of Great American Cities this urban realm is likened to a ballet:
"It is a complex order. Its essence is intricacy of sidewalk use, bringing with it a constant succession of eyes. This order is all composed of movement and change, and although it is life, not art, we may fancifully call it the art form of the city and liken it to the dance — not to a simple-minded precision dance with everyone kicking up at the same time, twirling in unison and bowing off en masse, but to an intricate ballet in which the individual dancers and ensembles all have distinctive parts which miraculously reinforce each other and compose an orderly whole. The ballet of the good city sidewalk never repeats itself from place to place, and in any once place is always replete with new improvisations.”
It was interesting, in this context, to remember my recent travels to Europe, namely London, where traffic on the roads occupies the left lane, but as mentioned in the article, there is not a correlation between this and pedestrian movement. While they mention that London follows pedestrians on the right, that is an oversimplification, as it doesn't necessarily follow, at least in my experience. Many people follow the walking to the left, which is culturally learned in the UK, mirroring the driving, but the influx on many non-locals that have their own rules often leads this to degenerate into chaos. Thus there is not a typical rule of thumb - and you are therefore required to be much more actively engaged in the surroundings to navigate successfully.

London Pavement Parkings - (image by Jason King)
As mentioned in the originally referenced article, culture is less important in this process as is habit and repetition: "Mehdi Moussaid of the Max Planck Institute in Berlin, this is a behaviour brought about by probabilities. If two opposing people guess each other’s intentions correctly, each moving to one side and allowing the other past, then they are likely to choose to move the same way the next time they need to avoid a collision. The probability of a successful manoeuvre increases as more and more people adopt a bias in one direction, until the tendency sticks. Whether it’s right or left does not matter; what does is that it is the unspoken will of the majority."

The importance of this sort of study (sorry thought, as mentioned, this not a 'youngish field') has long been known in urban realms. It is being rediscovered by other sciences and disciplines (seems like everyone wants to study the city now!) such as physics, who are using modeling in the context of crowd safety, particularly in a more multi-cultural world, to better understand what has long been studied the old-fashioned way - by watching people in person or through video.

While thinking of people in similar terms of particles may be helpful, as people are governed by many rules - there is somewhat of a wildcard element in human behavoir as people act as "particles with a 'will'", doing sometimes unpredictable things and non-linear behaviors. The issues with modeling are obvious, when you take into account the sheer number of variables at play even in the most simple pedestrian-to-pedestrian interaction. The article mentions this in the context of a study between Indian and German pedestrians, where the direction is also complicated by cultural spatial rules as well:
"Trying to capture every element of pedestrian movement in an equation is horribly complex, however. One problem is allowing for cultural biases, such as whether people step to the left or the right, or their willingness to get close to fellow pedestrians. Trying to capture every element of pedestrian movement in an equation is horribly complex, however. One problem is allowing for cultural biases, such as whether people step to the left or the right, or their willingness to get close to fellow pedestrians. An experiment in 2009 tested the walking speeds of Germans and Indians by getting volunteers in each country to walk in single file around an elliptical, makeshift corridor of ropes and chairs. At low densities the speeds of each nationality are similar; but once the numbers increase, Indians walk faster than Germans. This won’t be news to anyone familiar with Munich and Mumbai, but Indians are just less bothered about bumping into other people."
It would be interesting to do a lit review of cultural spatial studies, building on the work of Hall, to see if these have been updated, and if we have learned anything new in the past 20 years, since The Hidden Dimension was published in 1990. The world has changed dramatically and is much more global, thus it makes sense that even this sort of revolutionary study, while still somewhat applicable, will have changed due to a changed world. This goes as well to updating Whyte's classic video studies of public spaces (i.e. The Social Life of Small Urban Spaces), which are great but extremely dated and not reflective of a much more culturally rich society. A screen shot of one of the videos shows a different environment than what exists even 20 to 30 years later. This doesn't mean his data are any less relevant, but that we must continue to engage in further study to learn more.



A research agenda that looks at these phenomena, how we use spaces, how we react and incorporate multiple cultural viewpoints, and more is vital to our continual understanding of proxemics, pedestrian movement, crowd dynamics, and more. This can be done by incorporation of more scientific modeling of typically non-urban disciplines, such as the complex modeling processes in physics. It is, to me, much more interesting to envision this study through updates of the seminal urban research studies, which would be a worthy endeavor in our ever globalizing world and our constantly diversifying cities.

This post originally appeared on THINK.urban on January 05, 2012.

Thursday, November 3, 2011

Data Appeal - Making Map-Landscapes

A follow-up on new mapping tools from the author of 'The Exposed City: Mapping the Urban Invisibles' (read a review of this great book here).  Nadia Amoroso alerted me to a new endeavor called Data Appeal, which provides tools for visualization of data through mapping in order to engage people in new ways.

London - Economic activity w/ Green Space
 Ms. Amoroso sent me some information to give a snapshot of this new tool, which she describes as:  "...a new way of geo-data visualization. This web-based  application takes geo-referenced data files and generates beautifully  designed 3D and animated maps. The application is ideal for anyone  interested in transforming their data into powerful, communicative, and  visually appealing messages."
 
Toronto - Green Space in Neighborhoods
As you can see, the aesthetic variations allow users to choose from many options of shapes and graphic tweaks such as color and transparency to fine-tune the end result.  This flexibility gives option for a number of different iterations to provide more lively 'datascapes' which will hopefully engage users in new ways.  A variation includes colors and different symbology, as seen below:
Ranking of Los Angeles Restaurants
 More from the site: "This  application merges analytics, modeling and art into a new data  visualization tool. In essence, it is a simplified GIS, and visual  geo-analytics tool. The team at DataAppeal wanted to create an  application in which individuals can analyze their data visually and at  the same time have fun with their information, by designing it in a way  that expresses the subject, and by transforming numbers in an artful  way."

Chicago Green Space - alternative view angle
The exciting aspect of the service currently is that it is available free, at least for now.  In the future, a premium version with advanced features, analytic options and more data-design options will be available.   As Amoroso mentions, there has been lots of interest in the site from government  agencies, municipalities, environmental agencies, universities,  research groups, geography associations, market analysis research  companies, news agencies, media groups, national defence agencies,  healthcare institutions, social enterprise, telecommunication companies,  cultural institutes, real estate agencies are typical users groups.

This tool has been created through a collaboration of GIS specialists  and artists to ensure that data is displayed in a more visually  appealing manner to create a stronger response to information.  The tool   builds on the dialogue from Amoroso and collaborators in her book, while providing a shared platform, easy data interface, and access to robust tools for customization and creation of maps for many uses.

Map with dashboard for customization
Stay tuned, as I plan to interview Nadia to get some additional information on the development and future plans for Data Appeal and how it can continue to expand our ability to generate innovative map-landscapes.  For now, check out the site, and peruse some of the features and demos to more - particularly some interactive sites related to New York City Population and Toronto Bars and Restaurant Ratings - where you can visit the map, data, and other pieces that go into the map creation and visualization. 



Saturday, July 9, 2011

Source: Axioms for Reading the Landscape - Lewis

Doing some readings of seminal texts for an upcoming essay/book chapter on landscape urbanism, and want to capture some of the content, at least in fragments.  'Source' will be the code for snapshot of a particular essay - not a thorough review but an abstract and some specific reflections.  In this case the instructive 'Axioms for Reading the Landscape: Some Guides to the American Scene' by geographer Pierce Lewis (1979)*.

The main thrust of Lewis is to provide a roadmap for reading the 'cultural landscape'.  The concept of understanding this wider view of 'landscape' is important, as it moves us from the more bucolic associations of the term to one in which it is understood as part of the human experience.  The associations of the word landscape are covered often and referenced in literature on landscape urbanism, which eschews the idea of 'landscape' as beautification, rather echoing Lewis as encompassing "everything from city skylines to farmers' silos, from golf courses to garbage dumps, from ski slopes to manure piles... in fact, whole countrysides, and whole cities, whether ugly or beautiful makes no difference." (p.23)

This expanded view of landscape is vital, as it moves us from viewing nature as a detached process to a more broad idea of landscape, even the most banal, as attached with cultural meaning, and in the words of Lewis: 

"Our human landscape is our unwitting autobiography, reflecting our tastes, our values, our aspirations, and even our fears, in tangible, visible form." (p.23)
The Axioms, then are derived from a dearth of academic scholarship on the ordinary, in the vein of J.B. Jackson, giving us the grammar and usage for this cultural landscape.  The axioms therefore, are:

1. The Axiom of Landscape as a Clue to Culture
 In essence, our culture and who we are is reflected in our landscape, per the quote above our 'autobiography' in a visible form.  This includes some corollaries to this, including that of 'cultural change', implying that changes to landscape reflect changes to culture, the 'regional' corollary, that the landscapes in certain regions indicate differences of culture; the corollary of 'convergence', meaning that homogenization of culture is reflected in the landscape; the corollary of 'diffusion' whereby changes in culture and landscape occur through imitation; and finally, the corollary of 'taste' where the cultural landscape form is tied to culture.

2.  The Axiom of Cultural Unity and Landscape Equality
The presence of items in the cultural landscape almost always reflect the culture - and they are assumed to be equal with others.  Lewis uses some examples, such as the equality of the ubiquitous McDonald's to a architectural landmark like the Empire State Building.  This gives us the latitude to not elevate certain aspects of the landscape as more important that others in a hierarchy, but give equal weight to the ordinary, at least in terms of what they say about our culture.

3. The Axiom of Common Things
There is inherent difficulty in reading the landscape through traditional academic methods, for a number of reasons.  The lack of study of the 'ordinary' is due to these elements, as content, seeming to be of lesser value to scholars.  Therefore, we look to journalism, trade journals, advertisements, travel literature, and the occasional enlightened author to paint this picture of the 'common' elements of our cultural landscape. 

4. The Historic Axiom
The content of the cultural landscape cannot be divorced from history, as the past provides the context in which certain elements were constructed.  This is expanded with the corollary of 'historic lumpiness' which shows not a linear timeline but in fits and starts; the 'mechanical' or 'technological' corollary, where the actual mechanics of creation and the technologies used, such as the lawn and it's devices for care, need to be included in the reading - in the words of Lewis, "where things started, when, and how." (p.30)

5. The Geographic (or Ecologic) Axiom
Similar to history, the geographic context of the landscape must be understood, giving specificity to place in determining the spatial relationship that is shaped by culture. Culture is a major driver of the arrangement and use of places, thus determination of what is there is definitely tied closely to the opportunities and constraints that exist there.

6. The Axiom of Environmental Control
Related to geography, there must be knowledge of the physical environment in which cultural landscapes exist, and this influence on the spaces.  Not just the land use of human-defined spatial arrangements, these derive from climate, topography, geology, and other environmental features - which in turn are reflected in how we build, the use of energy, and myriad responses to the local patterns of the environment.

7.  The Axiom of Landscape Obscurity
The issue of legibility is key to reading the landscape, and this axiom reinforces that although messages exist, they are somewhat difficult to extract or translate.  The reaction is to look at other sources for this information, but much of what we seek is not available, is sometimes contradictory or difficult to confirm.  The only way to be sure, is to go right to the source and that this "alternation of looking, and reading, and thinking, and then looking and reading again, can yield remarkable results, if only to raise questions we had not asked before." (p.32)

Together these provide a working method for urbanism, which is not derivative of a preconception or prescription, but based on the actual, on the ground interaction with the cultural landscapes in which our decision-making rests. 

* The essay was originally published in The Interpretation of Ordinary Landscapes by (Meinig & Jackson, 1979) and reprinted in Center 14: On Landscape Urbanism (Almy. ed., 2006) - page citations from Almy, ed.

Thursday, March 31, 2011

Mississippi Modelling

An article that came up amidst discussions on the Landscape Urbanism Reader revisits the question of scale brought by up Linda Pollak in her essay 'Constructed Ground'.   On Design Observer, Kristi Dykema Cheramie investigates the wonderful history of the massive model built to simulate river conditions in her essay The Scale of Nature: Modeling the Mississippi River.


:: images via Design Observer

Thursday, December 2, 2010

Smart Growth

One of the recent awards from the EPA for the 2010 National Award for Smart Growth Achievement went to Portland Metro region for it's 2040 Growth Concept.


Policies, Programs, and Regulations: 2040 Growth Concept, Portland metro, Oregon
EPA says: Metro, the elected regional government of the Portland, Oregon, area, is making sure that future population growth can be accommodated through its “Making the Greatest Place” effort. Building on the 2040 Growth Concept, this effort helps protect current and future residents’ quality of life by providing access to transportation choices, investing in compact communities, and preserving farms and forests.

Monday, February 22, 2010

Paper Cities

Another great video from Digital Urban shows a snippet of 'Metropolis' a time-lapse film by Rob Carter showing the evolution of Charlotte, NC: "Made entirely from images printed on paper, the animation literally represents this sped up urban planners dream, but suggests the frailty of that dream, however concrete it may feel on the ground today. Ultimately the video continues the city development into an imagined hubristic future, of more and more skyscrapers and sports arenas and into a bleak environmental future. It is an extreme representation of the already serious water shortages that face many expanding American cities today; but this is less a warning, as much as a statement of our paper thin significance no matter how many monuments of steel, glass and concrete we build."

Metropolis by Rob Carter - Last 3 minutes from Rob Carter on Vimeo.

Sunday, February 21, 2010

Modelling Dynamic Processes

One of the interesting links I found on Bradley Cantrell's site showed a very cool project being developed by the UC Berkeley to simulate river dynamics, which have notoriously been difficult to replicate.

Via Science Daily: "
Christian Braudrick, William Dietrich and their colleagues are the first to build a scaled-down meandering stream in the lab that successfully meanders without straigtening out or turning into braided streams. The substrate is composed of sand to represent real-life gravel; white light-weight plastic for sand, and alfalfa sprouts for deep-rooting vegetation."


:: image via Science Daily

The new information gleaned from this research will allow researchers "...to investigate the role of various factors in determining the shape and migration rate of streams and how variables associated with climate change and land use might be expected to affect river form."

While the sophistication of digital modeling continues to amaze, I find it very interesting that certain physical processes need analog physical models in order to capture the myriad variables in accurate ways. As we strive for more ways to plan for unpredictable circumstances, we may find a resurgence of the physical model, along with our digital tools, as new/old ways of understanding complex dynamic processes.