The place to explore the city of tomorrow

Located in the heart of the agency, the Stream Innovation Center welcomes the community of urban specialists. Here, disciplines cross paths: arts, sciences, and society. We cultivate new methods, imagination, and knowledge. We share and disseminate through debates, conferences, screenings...

There are six axes for exploring urban issues:
— the architectural transition: bioclimatic design, low-carbon construction, and knowledge of materials
living systems encompass research on biodiversity, the experience of nature, and nature-based solutions
new Imaginaries is concerned with new forms of narrative and representation, particularly to accompany the emergence of a new post-Anthropocene aesthetic
new uses explore ways of living, working, producing, learning, exchanging, moving, etc., in order to develop programmatic responses in projects
data and design technology investigate the fields of digital transformation in the field of urban design at all scales
the city-metabolism aims to understand the complex and integrate it into the design process, question the relationship between humans and the living, and take into account the multitude of necessary knowledge, for a holistic approach to urban issues in the face of environmental challenges. 

Discover the program!


July 04, 2023 - 9:30am — 4:30pm

Organized at PCA-STREAM by the LabeX Urban Futures (gathering 14 research laboratories), this scientific day will take the form of 3 interventions, on the reconstruction of cities having suffered disasters, on methods of reducing the consumption of energy power and on the hypothesis of a world without resources.



Session "Energy de-escalation in a post-disaster context".
9:30am - 10:00am Delphine Grancher (Laboratoire de Géographie Physqiue, UMR 8591): Rebuilding the island of Saint-Martin after Hurricane Irma in 2017, the missed opportunity for energy de-escalation
10h00 - 10h30 Eric Verdeil (CERI, Sciences Po): Energy de-escalation in Lebanon
10h30-11h00 Discussion/questions from the floor

11h00 - 11h15 Break

Session "A world without resources. Need and society in Europe (11th-14th centuries)"
11:15am - 12:30pm Mathieu Arnoux (Director of Studies EHESS - Université Paris 7 - Diderot) : "How to think a world without resources? Lessons learned from the Middle Ages"
12:30 - 2:00 pm Lunch offered to registered participants

Session "Heating in an energy crisis" 
2:00 pm - 2:30 pm Renan Viguié (Bordeaux Montaigne University): Coping with cold in the 20th century: consumer and corporate strategies
2:30 pm - 3:00 pm Katia Laffrechine and Denis Morand (Lab'URBA- Université Gustave Eiffel): Decentralized production in urban heating networks, the case of the urban heating network of the Communauté d'Agglomération de Paris-Vallée de la Marne
15:00-15:30 Discussion/questions from the floor

15:30-16:00 General conclusion with Arnaud Passalacqua and Annaig Oiry


June 27, 2023 - 7pm

During this roundtable, the four researchers will address the question of transition through the prism of different notions such as maintenance, transformation, repair and restoration. These concepts are not without evoking the issues of destruction/reconstruction/rehabilitation in architecture.

Jérôme Denis is a professor at Mines ParisTech and David Pontille is a research director at the CNRS. They are both members of the Centre de sociologie de l'innovation (CSI) and have published together Le soin des choses, La Découverte, 2022.

Fanny Lopez is a historian of architecture and technology, a lecturer at the École d’architecture de la ville & des territoires Paris-Est and and co-head of the LIAT laboratory (ENSA Paris-Malaquais). She has published À bout de flux at Divergences in 2022.

Bérénice Gaussuin is a heritage architect and a doctor of architecture (ENSA Paris-Malaquais, Université Paris Est-Sup, LIAT). She is a partner in A&M Patrimoine, an agency specialized in the restoration of historical monuments and is a member of the Commission du Vieux Paris.


Eyes on the Street cycle

The Eyes on the Street cycle aims to explore and question the capture of urban data in public space.
What does it tell us about our time? What are its modalities? Can we escape it? To what extent does this data capture modify our "right to the city"?
A series of 6 events co-organized by PCA-STREAM, Urban AI and Sorbonne Center for Artificial Intelligence.
Moderator: Hubert Beroche
Scientific Director: Olivier Aïm

June 01, 2023 — 7pm - 8pm

The relationship between urban sensors and city dwellers is often unbalanced, between invisible capture and monopolization of information. To question how design can contribute to rebalance this relationship, we will scan devices for camouflaging individuals and revealing sensors in urban space.

A discussion between Geoffrey Dorne, designer, author of Hacker Citizens and Hacker Portester, Federica Busani, Cofounder of the tech-fashion startup Cap_able and Jonathan Pichot, European Director and Tech Lead at Helpful Places (born at Sidewalk Labs before becoming independent following the abandonment of the Toronto urban renewal project).



This conference will be followed by a fashion show featuring the anti-facial recognition collection, Manifesto — 8:00-8:30pm

With its colorful clothing resembling animal fur, Cap_able aims to invisibilize citizens against the misuse of biometric recognition cameras which, if neglected, could affect freedom of expression, association and free movement in public spaces.

The show will be followed by a cocktail party to conclude the Eyes on the Street cycle.

Discover more about Cap_able


May 25, 2023 — 7pm

MOOC LAUNCH EVENT [BY INVITATION] — Building and Climate Change: What Mitigation Strategies?

The building sector generates 23% of greenhouse gas emissions and 43% of French annual energy consumption. It is a key sector for the ecological transition! In order to meet this challenge, this MOOC proposed by the Observatoire de l'Immobilier Durable (OID) and filmed at PCA-STREAM's proposes, in 5 2-hour sequences, to answer the following questions:

— How to make the right decisions at each stage of the building's life?

— What materials should be used for low-carbon construction or renovation?

— How to prioritize decarbonization actions at the scale of a building portfolio?

To be followed from 17/05/2023 to 20/06/2023 with a teaching team composed of members of the IDO and Guillaume Mangeot, Agency Director and Laélia Vaulot, Environmental Strategy Manager for PCA-STREAM.


March 06-10, 2023 - PSL WEEK

Living cities: designing, building and inhabiting the urban worlds of the future

In partnership with the PSL university group, the "Anthropology of Life" team, the Social Anthropology Laboratory and PCA-STREAM, an interdisciplinary training week has been organized to better understand how the functioning of living beings, both human and non-human, influences the organization and development of cities. The objective is to identify how challenges for the design and construction of future urban worlds could be overcome through interdisciplinary collaborations of urban planning and architecture with natural sciences, engineering sciences and humanities and social sciences.

April 20, 2023 — 7pm - 8pm

Sensors are mainly thought, designed and deployed as tools for over-surveillance. However, as Anders Albrechtslund's experiments have shown, these technologies can be used for care, sociability and under-surveillance. Meet one of the pioneers of surveillance studies!

A conference - in English - at the SCAI (Sorbonne Center for Artificial Intelligence) by Anders Albrechtslund, professor in information sciences at the University of Aarhus (Denmark) and director of the Center for Surveillance Studies.

Address : 1st floor, Esclangon Building, Campus Pierre et Marie Curie, 4 place Jussieu, 75005 PARIS



April 11, 2023 — 7pm - 8pm

We often imagine technological devices when it comes to urban capture. But capturing is also about listening, observing, touching... feeling! And what if, contrary to the technicist discourse, another captation was possible?

A dialogue between Emmanuelle Lallement, university professor at the Institute of European Studies of Paris 8 and urban anthropologist, and Léone-Alix Mazaud, doctoral student at Mines and innovation project manager at PCA-STREAM, whose Cifre thesis deals with sensitive data on urban biodiversity. 



March 23, 2023 — 7pm - 8pm

They are everywhere in our cities but almost invisible... So what do these sensors look like? How do they work? And what do they really capture? To understand the behind-the-scenes of urban sensing, we will receive designers and operators of urban sensors.

A round table with Jean-Baptiste Poljak, CEO of Upciti, Caroline Goulard, CEO of Dataveyes and Modality, Laurens Vander Kuylen, project manager at Telraam and Sophie Vanwaelscappel, innovation manager at Lacroix. 



March 8, 2023 — 7pm - 8pm

Data capture in cities is often justified by a security discourse. Surveillance cameras - among other urban devices - are thus intended to protect citizens. But if it seems natural today, this narrative is nonetheless a socio-political construction.

An exchange between Beatriz Botero, co-founder of The Edgelands Institute and Professor at Sciences Po, and Matheus Ferrari, PhD student in Urban Anthropology at the University of Paris 8.



February 16, 2023 — 6pm - 7:30pm

We have never collected so much data in cities. The public space is thus subjected to a real "dataification". But how can we explain this massive capture? What is it about? And what does it tell us about our time?

An inaugural lecture by Olivier Aïm, lecturer at Sorbonne University and author of Les Théories de la Surveillance, followed by an afterwork co-organized with Yourban, The Swarm Initative and The Good AI.



February 01, 2023 - 6pm - 7:30pm

Discover the results of a survey conducted on workplace management, based on a panel of 200 companies in the Ile-de-France region: impacts of telecommuting, diversity and types of workplaces, (re)arrangement of spaces, corporate culture, and the impact of the pandemic.

Presented by Julie Perrin, PhD in geography and urban planning, post-doctoral researcher at Gustave Eiffel University. This research was conducted with Anne Aguiléra and Laurent Terral (LVMT, Université Gustave Eiffel) as part of the Smart Lab Lability.

The Smart Lab Lability is an ephemeral innovation and research laboratory of the Gustave Eiffel University (February 2021-January 2023), funded by the Île-de-France Region. Nine research projects have been dedicated to studying the repercussions of the health crisis on the organization of work and the evolution of the mobility of people and goods in Île-de-France.