Urban Radiance

Urban Radiance

Urban Radiance

A visual companion for the essay “Sticky data – context and friction in the use of urban data proxies.” published in Data and the City. ed. Rob Kitchin, Tracey P. Lauriault, and Gavin McArdlel. New York: Routledge. [pdf]

What have global data sets that estimate population density, economic productivity, measles outbreaks, rural poverty, resource footprints and electrification rates, urbanization and suburbanization, or average wages in common? They are all based on nighttime imagery of city lights captured by the Operational Line Scanner (OLS) sensor on the satellites from the US Defense Meteorological Satellite Program (DMSP).

What should later become the workhorse of geographers and economists was initially a completely accidental by-product: of a cold-war era military satellite program—launched in the 1950s by the US Air Force for estimating cloud cover and precipitation for reconnaissance missions. Army engineers discovered that the sensors were sensitive enough to capture the artificial radiance of cities during moonless nights without cloud cover.

In 1978, Thomas A. Croft published the first global composite of night-time images in the Scientific American. At that time, the image data had to be manually stitched together from analog films ejected in capsules from the satellite, which had to be laboriously recovered by the military. Today, the Black Marble data set has become one of the most popular motifs of space imagery.

While DPMS images are usually used to show regional differences, this project visualizes the temporal change in urban radiance from 1992 until 2015. It is the first interactive visualization of radiance time series data.

Link to project

Decoding the City

Decoding the City

Decoding the City

Edited volume on data-driven urbanism together with Senseable City Lab Director Carlo Ratti.

The book focuses on research approach of the Senseable City Lab and includes essays from guest authors including Fabien Girardin, Luis Betttencourt (Santa Fe Institute), Andres Sevtsuk (City Form Lab), Francisca Rojas and a group of authors from the Barabasi Lab.

This edition, edited by Dietmar Offenhuber and Carlo Ratti, shows how Big Data change reality and, hence, the way we deal with the city. It discusses the impact of real-time data on architecture and urban planning, using examples developed in the SENSEable City Lab. They demonstrate how the Lab interprets digital data as material that can be used for the formulation of a different urban future. It also looks at the negative aspects of the city-related data acquisition and control. The authors address issues with which urban planning disciplines will work intensively in the future: questions that not only radically and critically review, but also change fundamentally, the existing tasks and how the professions view their own roles.

The book has been translated into several languages including Chinese, Korean and Farsi, the German version has been published at Bauwelt Fundamente.

Accountability Technologies

Accountability Technologies

Accountability Technologies

Published in Fall 2013

 

The basic need of civil society to live in responsibly planned and managed cities, to be involved in the planning process, or to at least be informed about it, has become a renewed focal point of debate in the past years. While the incipient criticism of the institutionalized and oft-unquestioned decision- making chain of urban planning was accompanied by a basic struggle for more say and participation in the 1970s, the varieties of participation, the technical possibilities of knowledge transfer and the understanding of transparency—keyword Open Data—have fundamentally changed in today’s information society. Much suggests that the classic distribution of roles between public and “individual” responsibility and the interface between citizens, activists and government have to be re-negotiated under new conditions. With the help of visualization, analysis and measurement tools subsumed under the term Accountability Technologies, as well as socio-cultural practices, extensive data on noise, environmental pollution, mobility and corruption, for instance, can be compiled and represented. This book exemplarily shows which socio-political areas of action are opened up by Accountability Technologies, but also which critical aspects are tied in with them. Such as, for example, the seemingly simple insight that the enormous convolutes of availably-made data are neither neutral, nor do they imply a better understanding of complex processes “per se.” The subtitle of this book indicates the direction: Accountability Technologies are to be understood as Tools for Asking Hard Questions, not as keys to ultimate answers.

“Like the volume Inscribing a Square: Urban Data as Public Space (Springer Verlag, 2012), edited by Katja Schechtner and Dietmar Offenhuber as well, this publication also rests upon the precondition that architecture and urbanism go far beyond the physical space and the singularity of built structure. The basis for this book is provided by the second edition of the symposium Sensing Place/Placing Sense, again carried out with exceptional cooperation between the AIT Austrian Institute of Technology, the Ars Electronica and the afo architekturforum oberösterreich within the scope of the Ars Electronica Festival 2012. Thanks to these initiatives at the interface of several disciplines, the increasingly dense interweaving of urban data and their physical context has been continued in such an exciting way under the aspect of Accountability Technologies. I would like to thank all those involved, especially the two editors, for their competence and commitment in realizing this book. What began as a one-off publication now reveals itself—also in its graphic appearance—as a mutually related, mutually stimulating twosome.” Gabriele Kaiser, architekturforum oberösterreich

cover visualization: crowd-investigation of plagiarism in the doctoral dissertation of a former German defense Minister – by GutenPlag/User8

 

on Amazon 

Inscribing a Square: Urban Data as Public Space

Inscribing a Square: Urban Data as Public Space

Inscribing a Square: Urban Data as Public Space

In his 1965 movie “Alphaville,” Jean-Luc Godard takes us to a city, regulated and controlled by the omniscient computer “Alpha 60” based on principles of logic and reason. Allegedly, Godard originally intended to name his movie Tarzan versus IBM (Darke, 2005). As of 2012, this working title seems more pertinent than ever. The past year was marked by two big themes for cities and technology: first, the ubiquitous arrival of “smart city” solutions, peddled by companies such as IBM and CISCO to municipal governments in order to upgrade and optimize their urban infrastructure through information technology. Second, the success of civic protests and disobedience, coordinated bottom-up through social media—the “Arab Spring,” Wikileaks, the Spanish May 15 or the American Occupy movements, just to name a few.

This is a book about how information shapes the city: its sensory experience, its infrastructures and its places. We are interested in the ways different groups use urban information to make sense of public spaces and change them.

In this sense, two perspectives are of special interest:

  1. Sensing Place. The role of urban data as a public good in a context where cities are increasingly instrumented with real-time sensor networks.
  2. Placing Sense. Practices aimed at changing the urban environment by re-inscribing public spaces through location-based media.

With essays by: Malcolm McCullough, Jose Luis de Vicente, Usman Haque, Bruce Odland, Sam AuingerSusanne Seitinger, Sean Bonner, Nashid Nabian, Carlo Ratti
, Oliver Schürer, Sarah Williams, Sandrine von Klot
, Dietmar Offenhuber, Katja Schechtner

Projects by:  stadtmusik, Safecast, Ebru Kurbak, Mahir M. Yavuz, h.o
, Cesar Hidalgo, Ars Electronica Futurelab, and Fabien Giradin

Interviews with: Mark Shepard, Anthony Townsend

 

forage tracking – mapping informal recycling

forage tracking – mapping informal recycling

forage tracking – mapping informal recycling

The Forage Tracking project is mapping the tacit knowledge and spatial organization of informal recyclers in downtown Saõ Paulo.

We used location-detecting hardware and software to investigate how the Catadores, informal recyclers, find and collect material in the city. We are also developing participatory platforms that will help them to organize their activities and connect the cooperative to the citizens.

In our work with the recycling cooperative COOPAMARE, we try to increase visibility and understanding of the service they provide to the city.

Project homepage

Team

Dietmar Offenhuber, Senseable City Laboratory; David Lee, Senseable City Laboratory; Ciro Iorio, Sloan School of Management; Libby McDonald, Community Innovators Laboratory; Profa. Maria Cecília Loschiavo dos Santos, University of São Paulo; Laura Fostinone, MIT Community Innovators Laboratory; Rafael Galvão, University of São Paulo