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Report: Hej!
Click here to read the final report for the project Hej! from 2021 (in Swedish).
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Is it by creating opportunities to say hello that the in-between spaces of the city become shared places? The team behind the project Hej! built a temporary installation and piece of furniture to measure and evaluate how the transformation of Riksdalertorget in Stockholm affected people’s behaviours.
The COVID-19 pandemic highlighted the need for welcoming public spaces. The theme for ArkDes’ 2021 Open Call was “Shared Spaces and Interspaces”. The project Hej! (Hello!) started from the idea that social contact—even between strangers—can have a significant impact on wellbeing and explored ways to encourage people to pause and greet each other.
By combining different perspectives, the team—landscape architects from AJ Landskap ↗, behavioural strategists from Beteendelabbet ↗, and artist Gunilla Bandolin ↗—developed shared tools for designing a temporary installation aimed at fostering social interaction. Riksdalertorget ↗ is a classic 1950s urban environment with an open, flat character, where the fountain has long been a central spot for play and social gatherings. The project group mapped how the square was used and how visitors experienced encounters there. One early observation was the need for more seating.
Three internal workshops coordinated the work and formed the basis for defining goals and behavioural challenges, using a methodology called the Behaviour Journey. Surveys collected through a question box generated around 130 responses, which, together with spontaneous conversations, showed that the square was appreciated but could be strengthened as a social meeting place. Four key factors were identified as important for encouraging people to greet one another: unexpected events, moments of surprise, curiosity, and shared elements like children or dogs.
The square, managed by the City of Stockholm’s Traffic Administration, was part of the Levande Stockholm initiative, which temporarily transforms streets and squares into summer and winter spaces. The team decided to create a temporary piece of furniture designed to spark curiosity and reflect the local context. The piece ‘Fontänpusselä (Fountain Puzzle) consisted of 14 wooden pieces that, in winter, formed a cover for the fountain. In summer, the pieces could be spread out and used as seating, play areas, or simply to draw attention. The Traffic Administration contributed practical advice and resources throughout the project.
Observations showed that children quickly engaged with the furniture, and that adults often approached together with their children. This led to longer stays and more spontaneous encounters in the square. The work was also summarised in a final report, which you can find further down the page.
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Revisit 2025
“The project became a catalyst for something larger. It strengthened the city’s confidence in using temporary design as a step-by-step process towards permanent solutions and redevelopment.”
– Anna Johansson, Traffic Administration, City of Stockholm
“The project’s greatest achievement is that it resulted in a built intervention that residents experienced as identity-forming for the site, and that it made the square more attractive for children and young people.”
– Anna Englund, Landscape Architect
Four years after Hej! ended, its results continue to influence the development of Riksdalertorget.
In 2025, the City of Stockholm completed a permanent upgrade of the square, including renewed seating, more greenery and a small stage. The fountain puzzle, originally intended as a short-term installation, remained for several years and became a key source of knowledge for the square’s long-term design.
A key lesson from Hej! is the value of cross-disciplinary collaboration and of understanding a place through multiple perspectives. By combining the artist’s open gaze with behavioural insights and the landscape architect’s methods, the project could formulate new questions about the site’s needs. The temporary installation brought new life to the square and attracted many visitors, especially children and young people.
Hej! shows that temporary design can serve as connective architecture and as an important step in a long-term development process. The project is a learning example of how temporary interventions can drive lasting change and inspire other actors to invest in prototypes and short-term solutions with the potential to shape future public spaces.
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The revisits are a strategy within ArkDes’ practice-based research to understand how ideas and knowledge continue to live on after a project has ended, and how results evolve over time. The aim is to see time as an active part of the research process and to understand how ideas mature, transform and take on new forms after a project ends. The focus is on how knowledge becomes embedded in municipal practice, how the working methods of architects and designers change, and how insights are passed on to other actors.
ArkDes
April 2021 – November 2021
.pdf(5mb)
Click here to read the final report for the project Hej! from 2021 (in Swedish).