Using art in public spaces to influence human behavior is nothing new. Throughout the centuries, art has demonstrated the power to transform the way we look at the world. Today, this power of art is being applied to a very practical domain: road safety. In Heverlee, a unique mural titled “The Act of Slowness” plays an important role in promoting safer traffic in the neighborhood.
The Genesis of The Act of Slowness
In Heverlee's Pleinstraat, a sloth and its friend, the hornbill, are the newest residents, thanks to the dedication of the local community and the city project “Kom op voor je wijk” (Stand Up for Your Neighborhood). This mural—a vibrant, semi-realistic work of art brimming with exotic plants and natural colors—is the result of the creative efforts of Pleinstraat residents Sam Peetermans and Eline Develtere, backed by the support of their neighbors.

The Creative Process
The idea for this mural began by looking at the side facade of a building as a potential canvas. With the help of “Kom op voor je wijk,” an initiative supported by the City of Leuven to help residents beautify their surroundings, this spark of an idea evolved into a full project proposal.
With the creative guidance of Treepack and following an inspiring brainstorming session with local residents, a design featuring a sloth was chosen. More than 100 neighbors cast their votes, ultimately crowning “The Act of Slowness” as the winner.
Murals as a Catalyst for Road Safety
The sloth, nestled comfortably on a branch and surrounded by vivid purple blossoms, looks up from its book—aptly titled “The Act of Slowness”—making direct eye contact with passersby. This scene symbolizes the joy of slow living and tranquility, a message the local residents hope to pass on to the traffic flowing through their street. The concept relies on this captivating mural serving as a visual landmark that encourages drivers to slow down and drive more mindfully, creating a more pleasant and safer environment for everyone.
The Impact of the Mural
“The Act of Slowness” is much more than just a beautiful piece of art. It has also become an inspiring conversation starter and a catalyst for bringing the community together. Catching the eye of both passersby and local residents, it has turned into a delightful gathering point that warmly welcomes everyone with color and cheer.

Conclusion: The Power of Murals for Road Safety
It is clear that art—and murals in particular—can be a powerful tool for enhancing road safety. “The Act of Slowness” in Heverlee is a living testament to how a creative, thoughtfully designed mural can positively influence driving behavior while simultaneously uniting a neighborhood. It is more than just a pretty sight: it is an emblem of community spirit and a daily reminder to take life slow, mindful, and safe.
Want to discover more about this unique project in Heverlee? Click here!
With growing recognition of the impact of murals on traffic safety, we can look forward to seeing more cities embrace such innovative initiatives in the future. And who knows? Perhaps the next time you drive down a street, a sloth will inspire you to ease off the gas and simply enjoy the journey.
Ready to bring a splash of color to your municipality soon? Discover more information here, and who knows—we might be brightening up the streets in your neighborhood next!