09.04.2026

Data-Driven Noise Maps as a Basis for Design

Building design

A lively scene with people at a playground in the city, taken by MChe Lee.

Noise is the new particulate matter. While cities, developers, and planners have been grappling with air pollutants for years, the next urban challenge is hitting with full decibel force. Data-driven noise maps promise a revolution in design—from flying blind acoustically to audible urban planning. But how much substance is really behind these colorful noise clouds? Who uses them, how accurate is the data, and do they actually lead to quieter cities? Welcome to the acoustic age, where it’s no longer just form but also frequency that determines whether a neighborhood has a future.

Data-driven noise maps have long since become more than just pretty visualizations for noise action plans.
They are evolving into a strategic basis for design—and influencing urban development, architecture, and open-space planning.
Germany, Austria, and Switzerland rely on different models, standards, and technologies.
Digital methods, AI, and real-time data are transforming noise mapping—and exposing previous planning errors.
Sustainability and health are coming into focus: noise is being reevaluated as a socio-ecological problem.
Architects and engineers need new skills in working with data, simulations, and acoustics.
Noise maps are a divisive issue: caught between data protection, model uncertainties, and the temptation of technocracy.
Across Europe, the debate over the commercialization of noise data and algorithmic fairness is heating up.
A visionary concept: Noise maps as a democratic tool for a more livable, equitable city.

The Acoustic Revolution: Noise Maps as a Planning Tool

For a long time, noise was the stepchild of urban planning—buried somewhere at the back of a report, between parking lot statistics and tree inventories. Anyone who remembers the noise maps of the early 2000s thinks of low-resolution, pixelated color maps that were more off-putting than informative. But times are changing. Today, noise maps are high-resolution, data-driven models that not only visualize but also finally quantify what causes disturbance: road noise, rail noise, aircraft noise, industrial noise—and everything in between. In Germany, Austria, and Switzerland, a genuine expertise in noise modeling has developed. While in Germany the EU Environmental Noise Directive requires every major city to create noise maps, Vienna, Zurich, and Basel have long been charting their own course. They combine different data sources, rely on open data platforms, and use simulations that go far beyond the minimum legal requirements.

But today, noise maps are no longer just an administrative tool; they are becoming the centerpiece of architectural design. Increasingly, the planning process begins not with the site plan, but with an acoustic analysis. Where a noise barrier used to be erected as an after-the-fact fig leaf, entire neighborhoods are now being developed based on noise simulations. This changes not only floor plans and facades, but also the logic of urban development. Anyone who wants to win a competition today must not only avoid noise but also be able to stage it—as a design element, a social issue, and a mark of quality.

The technology behind noise maps has made quantum leaps in recent years. Modern sensor technology, mobile measuring stations, crowdsourcing apps, and satellite-based surveys provide a database that makes its predecessors look outdated. AI-powered algorithms recognize patterns, simulate alternative traffic routes, assess the impact of new buildings—and finally reveal just how fragile the assumptions of traditional planning were. Those who understand the data can implement targeted construction measures instead of taking a one-size-fits-all approach. This marks the end of the noise barrier as a panacea—and the beginning of a new, acoustically conscious design culture.

At the same time, the acoustic revolution brings its own challenges. The volume of data is exploding, and demands for interoperability, data protection, and model quality are rising. Architectural firms and engineering companies that want to work seriously with noise maps today must not only be able to draw but also to calculate and simulate. The traditional division of roles between planners and acousticians is blurring. Those who are not prepared to grapple with models, databases, and simulations will, in the future, play only a secondary role—in the truest sense of the word.

All of this has implications for architecture. Suddenly, facades are no longer just thermal insulation but also noise barriers. Floor plans are organized into acoustic zones, and outdoor spaces are designed as acoustic shelters. The city is being made audible—and design is taking on a new dimension. Anyone who still claims that noise maps are relevant only to government agencies has failed to recognize the signs of the times.

Digitalization and AI: From Static Plans to Real-Time Simulation

Digitalization has not only given noise maps a fresh coat of paint but has also completely reshaped the playing field. What used to require months of data collection, modeling, and mapping now happens in real time. Sensors continuously collect data, and algorithms cross-reference this data with traffic models, weather data, and construction activities. The result: noise maps are no longer static products, but dynamic tools that adapt to the pulse of the city. In Zurich, for example, mobile sensors are mounted on streetlights and public transportation vehicles to track noise levels throughout the day. In Vienna, pilot projects are underway in which citizens use an app to report their personal noise levels—thereby significantly improving the quality of the models.

Artificial intelligence is playing an increasingly important role in this process. It recognizes patterns, identifies correlations, and predicts the impact of planned measures. For example, the impact of a new road layout, a revised schedule, or a planned building on noise pollution can be simulated—before the first shovel even hits the ground. In Germany, cities such as Hamburg and Munich are experimenting with digital twins that map traffic flows, building densities, and noise propagation on a single platform. The goal: to avoid planning errors, conserve resources, and improve quality of life.

But digitalization also brings new challenges. The quality of the models stands or falls with the quality of the data—and with users’ understanding. Algorithms are not infallible, and the temptation to rely on the “objective” truth of the simulation is great. Critics warn of a technocratic bias: Those who simulate only what can be measured overlook the social and cultural dimensions of noise. Noise is not just decibels, but also perception and context. A playground may be a nuisance to one person but vital to another. A railroad track can divide—or connect. The trick is to view the models as tools, not as judges.

Another problem: data protection and data sovereignty. Who collects, stores, and uses the noise data? How transparent are the models, and how traceable are the assumptions? In Germany, there is widespread mistrust of centralized data platforms. Cities like Berlin and Frankfurt are therefore relying on open-source solutions and open data standards to keep control in the hands of local governments. But the reality is fragmented: While in Switzerland and Austria the digitization of noise maps is often part of comprehensive smart-city strategies, Germany remains stuck in the pilot phase in many places.

Digitalization also opens up new opportunities for participation and communication. Noise maps can be used as interactive tools to bring citizens, planners, and policymakers together. By making noise visible, we can discuss it—and develop solutions together. The question remains: Who dares to actually harness the power of data?

Sustainability, Health, and Social Justice: Noise Maps as a Barometer

Noise is no longer just a technical problem, but a matter of sustainability, health, and social justice. Studies show that noise causes illness, reduces life expectancy, and contributes to stress, sleep disorders, and cardiovascular disease. Low-income neighborhoods, children, and the elderly are particularly affected. Noise maps make these inequalities visible—and raise the question of how much noise a society can tolerate. In Vienna, noise maps are specifically used to identify disadvantaged neighborhoods and take targeted measures to reduce noise levels there. In Zurich, noise data is incorporated into urban development planning to specifically protect open spaces, schools, and residential areas. Awareness is also growing in Germany: Noise is an environmental and equity issue—and noise maps are the diagnostic tool.

But with this new visibility comes responsibility. Anyone who uses noise maps as a basis for design must offer more than just technical simulations. It’s about integrating health protection, social participation, and environmental sustainability. Architects and urban planners are becoming mediators between data, residents, and political goals. This requires new expertise: acoustics, environmental medicine, sociology—traditional planning education is no longer sufficient. Anyone who wants to shape the city must also understand how it sounds—and what ails it.

The debate over sustainable urban development is being reignited by noise maps. They show how closely noise is linked to mobility, land use, and climate protection. Reducing traffic not only improves air quality but also the acoustic environment. Creating open spaces creates tranquility. But the solutions are often inconvenient. Fewer cars mean fewer parking spaces; more green spaces mean fewer building sites. Noise maps make these conflicting goals visible—and force us to make decisions.

The European debate also reflects this trend. The EU is not only calling for increasingly detailed noise maps but also for action plans that deliver measurable improvements. Cities that rely on the data must deliver—and find themselves under pressure to justify their actions. At the same time, the risk of commercialization is growing: Private providers see a business opportunity in noise data, and platforms are emerging that sell access, interfaces, and analyses. The question is: Will noise become a commodity—or will it remain a public good?

Ultimately, the sustainable city is the quiet city—and noise maps are its seismograph. Those who use them intelligently can enhance quality of life, health, and social justice. Those who ignore them risk acoustic collapse. The choice is ours—and that of the designers.

Technology, Criticism, and Vision: Noise Maps as a Laboratory for the Future of Architecture

From a technical standpoint, modern noise maps are a marvel of data integration, simulation, and visualization. They combine GIS systems, traffic models, weather data, and building information into a single, interactive platform. Planners who want to stand out today must be able to juggle interfaces, data formats, and simulation parameters. The classic hand-drawn sketch is no longer enough. The key is to ask the right questions: How is noise calculated? Which frequencies are relevant? How accurate is the input data? What uncertainties exist in the modeling? Only those who can confidently answer these questions will thrive in the new reality of architectural practice.

Criticism of data-driven noise maps, however, is not long in coming. Models are only as good as their assumptions. Those who misinterpret data draw the wrong conclusions. Those who blindly trust models forget social reality. The temptation to present noise maps as objective truth is strong—but they must never become a substitute for genuine participation and experience. Especially in Germany, where the planning process is already marked by mistrust and mountains of paperwork, there is a danger that noise maps will degenerate into a token gesture. Then everything will remain as it was—just more colorful.

But there are also visionary approaches. Noise maps could become a democratic platform: Every citizen can see, hear, and discuss how loud or quiet their neighborhood is—and actively contribute to making it better. In Switzerland and Austria, such tools are already being tested. They put an end to a lack of transparency, build trust—and demonstrate that technical innovation can spur social innovation. The question is not whether, but how we will make use of these new opportunities.

Noise maps are playing an increasingly important role in the global discourse. Cities like Paris, Barcelona, and Singapore are relying on real-time data, AI, and open platforms. Across Europe, a debate is raging over standardization, access, and equity. While Germany is still debating data protection and interfaces, Copenhagen is already using noise maps to test new mobility concepts. The competition never sleeps—and the pressure to innovate is growing.

Ultimately, the realization is this: Those who understand noise maps understand the city. They are architecture’s laboratory of the future—and the testing ground for a new, responsible culture of planning. Those who get on board now will shape not only buildings but also acoustic spaces, quality of life, and equity. And that is more than any zoning plan could ever achieve.

Conclusion: The city as a musical ensemble—and the design as a score

Noise maps have the potential to fundamentally transform architecture. They make audible what has long been invisible—and give the design a new dimension. In Germany, Austria, and Switzerland, the technical possibilities are growing, but so are the challenges. Digitalization, AI, and sustainability are driving this development forward, but they also challenge old certainties. Anyone planning with noise maps today must understand data, scrutinize models, and take social reality into account. The debate over data protection, commercialization, and equity is underway—and remains uncomfortable. But one thing is certain: The future of the city is not only built but also composed. Those who view the design as a musical score shape not only spaces but also the lives within them. And to our ears, that sounds like true innovation.

22.01.2025

Project

Co-creation instead of participation

Building design

Management

Participation versus co-creation: Would the Superkilen work better today if citizens had been integrated into the process from the outset?

Superkilen in Copenhagen has failed. The citizens as a whole use the square more as a place to pass through than to linger, even though they were integrated into the planning process through participation – according to a long-term analysis by students at the Danish Institute for Study Abroad. During the design and development process, the Superkilen planners asked citizens to suggest artifacts from their countries of origin for the new city square. Holistic planning with co-creation and prototypes would have been one way of increasing acceptance of the square.

Co-creation

Co-creation originally comes from the business world, which began to involve consumers in the product development process in the 1990s. The Leading Cities research group defines co-creation in urban development as “the active flow of ideas and information between five sectors: government, business, academia, non-profit organizations and citizens that promotes participation, engagement and development.”

What is the difference to citizen participation? Public participation is a means for planners to learn more about the attitudes and opinions of local residents and to develop new ideas. They increase acceptance for a project. Co-creation, on the other hand, involves the most important sectors of society on an equal footing from the outset.

It therefore offers citizens and citizens’ organizations a better opportunity to be truly heard and gain more influence in planning processes. Co-creation views users as proactive citizens rather than consumers, and focuses on long-term cultural change and the whole community rather than individual user groups. Where citizen participation seeks to integrate citizens’ opinions into an already prescribed program, co-creation helps future users to shape and enforce their own decisions. Co-creation is an endless process in the best sense of the word, with regular exchanges taking place between those involved.

Co-creation has a number of advantages. The public provides input and feels equal, citizens feel they are taken seriously. They become much more aware of their living environment. In return, the government has to be much more responsive and responsive to citizens and other sectors. In return, however, it saves costs because only what is actually needed and used is implemented and the risk of a new project is correspondingly low.

Prototypes

In large design projects such as Superkilen, it is extremely important to test ideas in advance before they become a permanent part of the landscape or city. It is a long way from the abstract idea, analysis and public participation to the concrete installation. The prototype should be seen as a learning tool that can be optimized and changed in the next step. Prototypes are a democratic way of dealing with public space, they also reduce the risk of a failed project and unnecessary expenditure.

The holistic approach

Combining co-creation with the prototyping approach makes it easier to explore the potential of a space. This holistic approach leads to more sustainable and vibrant places in the city. However, the Superkilen started with an assumption that co-creation and prototyping would have led to a different design. Users would accept the space better and make it more their own. Perhaps a more critical examination of the initial idea would also have been achieved.

You can read Bianca Hermannsen’s current analysis of the square here.
Robert Schäfer visited Superkilen in 2012, directly after the opening. You can read his review of the new city square in Copenhagen here.
Watch the video here to see how BIG travels with local residents to their countries of origin to select artifacts for Superkilen.

19.12.2024

Design

Heavyweight with a message

Building design

The Globo Uovo sculpture is an impressive work by stone sculptor Marc Reist and is currently on display at the Dürrenmatt Center in Neuchâtel, Switzerland. The artist made the 6.5-ton “global egg” out of white marble. In an interview with STEIN, the Swiss artist explains what message he wants to convey with his sculpture, why he only uses white marble and […]

The Globo Uovo sculpture is an impressive work bystone sculptorMarc Reist and is currently on display at the Dürrenmatt Center in Neuchâtel, Switzerland. The artist made the 6.5-ton “global egg” out of white marble. In an interview with STEIN, the Swiss artist explains the message hewants to conveywith hissculpture, why he only works with white stone and why he launched an appeal to collect eggshells before the opening.

Marc Reist: It’s a logical consequence of my artistic work and how I reflect on my surroundings by observing them. I notice how certain rules and mechanisms are similar on both a small and large scale. I never consciously came up with the topic, it just developed. I think it started in 2005.

The Globo Uovo symbolizes the world and the origin of life. Was there a specific reason for this idea?

Yes, that was in 2011. I was invited by a newspaper in Switzerland to write a few columns. I started to write about resources and food in these texts and about what bothers me: the way we deal with food, the way we deal with our environment. And during this phase, I designed the globe and then the egg. The eggs actually always resonate with me. Regularly for my wife – I only mention this in passing – for her birthday, for Mother’s Day, there are always drawings of chicken and egg. I either start with the chicken or the egg, but the egg always resonates.

Do the many openings in the sculpture also have a meaning?

The openings were created by the lines of longitude and latitude. And I found them very special as soon as I was able to work in the egg. There is a feeling of protection when you are in your human egg and you can see the outside world through these openings. At the same time, it could also be a prison. These feelings arose in me when I was working in the egg.

From a professional point of view – I trained as a stone sculptor and also took the master craftsman’s examination – I know almost all the materials. But even so, I used to only work with black stone for my shapes. And now, for years, I’ve only been working in white. For the small sculptures I make, I use a bright white marble. There is no other solution for me and for my forms. I have never used any materials with textures. They are beautiful, but not for my shapes.

But the marble for the egg has a certain texture. Was a block of 55 tons in pure white not available?

For the Globo Uovo, the stone is a little more marbled. Because this size in pure white – that would have been almost impossible and would have meant such a long wait. And the egg in this size in pure white would almost be a little too beautiful(laughs), almost baroque. That’s impossible. Visually too, it’s almost not rock anymore.

So the egg also looks much more “alive”.

Exactly, that’s what I mean. This methamorphosis of the rock, this mountain, that has to resonate.

How did the change from black to white rock come about?

That’s an interesting question. I have to go back to that. I wanted to make a really big sculpture in the 1990s. I chose a large block in Carrara without knowing what I was going to do with it. I wanted to be inspired by the material, by the block. I normally proceed differently. I have a drawing or a model and then work on the stone. But now I wanted to be influenced by the block. At the time, it was 20 tons in size. And that put an enormous strain on me(laughs). I suddenly realized that the further north the block was transported from Italy, the greater the strain in my head became. I was very blocked! And suddenly I found the solution. I then worked out a light cloth from this block. That was probably my solution, to release this heaviness in me in relation to the block. And since then I’ve only worked with white stone.

Are there purely visual reasons why you like to work with marble a lot, or is it also because of its properties?

Both, actually. My sculptures are also a matter of light. Not only with the large egg, but also with the other sculptures. The way the light passes through the opening and the edges is what makes it so good. And the properties for working are a pleasant side effect. It is easy to work with because it is so even, so homogeneous. But I mainly use marble because light and shadow are important for my sculptures.

You also want to send out a message with your art objects.

Yes, absolutely. I think that’s the greatest task of an artist. That his work is seen and heard, as the case may be. Communication is important. It makes no sense at all if I make an egg like this just to have another beautiful sculpture in a park somewhere. That wouldn’t be enough. It needs a message.

What message is that?

We have great difficulties with resources in general. This is most sensitive when it comes to food. And I really want to draw attention to the fact that people need to deal with the issue of food and resources. That a small train of thought changes.

Your sculpture is currently on display at the Dürrenmatt Center in Neuchâtel, Switzerland. Before the exhibition began, you launched an appeal to collect eggshells. What was the reason?

We had planned a performance with a dancer for the vernissage. I needed a lot of eggshells for that. Over the course of a year, people collected around 35,000 eggshells, washed them and brought them to me. Something you would normally throw away. For the exhibition opening, we laid them out on the floor of the museum and cleared paths, like a labyrinth. The dancer danced her way through it. But every now and then she made missteps on the eggshells, causing them to crack. And at the same time, with every misstep, a part of her body died. Because the shells represent our resources and if they are destroyed, the person dies too. And so she danced through the labyrinth and gradually died a dramatic death after three or four missteps.

Find out more about the project and the natural stone work in the February issue of STEIN. You can also find more information at www.stein-magazin.de/skulptur-des-monats-globo-uovo.