The best playgrounds (according to science)

Key Concepts

• Junk Playgrounds: Early 20th-century play spaces built from scrap materials.
• Affordance: A design term referring to how open-ended or versatile an object is for interaction.
• Risky Play: Play involving heights, speed, or uncertainty that builds resilience and risk-management skills.
• Adventure Playgrounds: Modern, open-ended spaces designed to foster agency and creativity.
• Play Agency: The capacity for children to explore and shape their environment independently.

1. The Origins and Philosophy of Junk Playgrounds

In the 1930s, Danish landscape architect Carl Theodor Sørensen observed children playing in construction sites, finding that they preferred scavenging and building over traditional play structures. This led to the creation of the first "junk playground." These sites, often built on derelict land or post-war bomb sites, prioritized child-led construction and exploration. While modern parents often perceive these environments as dangerous, research suggests they provide developmental benefits that standardized playgrounds lack.

2. Developmental Benefits of Play

Play is essential for childhood development, facilitating:

• Problem-solving: Through game creation and rule-following.
• Motor Control: Through navigation of varied, unpredictable terrain.
• Social/Language Skills: Through collaborative play with peers.

Researchers have identified three factors that maximize these benefits:

1. Freedom: The agency to explore without adult interference.
2. Novelty: Unpredictable elements that keep children engaged.
3. Time: Sufficient duration to execute complex plans.

3. The Problem with Traditional Playgrounds

Traditional playgrounds (swings, slides, climbing frames) are criticized for having low affordance.

• Affordance defined: The degree to which an object’s design allows for multiple, open-ended uses.
• Low vs. High Affordance: A slide has low affordance because it has a single intended use. A sandbox has high affordance because it can be shaped, dug, or built upon in infinite ways. Traditional structures are often static and lack the flexibility required for deep, creative engagement.

4. Modern Adventure Playgrounds: Case Studies

Designers are reviving the "junk playground" concept through modern adventure spaces:

• Kolle 37 (Berlin): Provides scrap materials and real building tools for children to manipulate.
• Harapa Park (Tokyo): Utilizes the natural landscape, allowing children to create their own water features, sinkholes, and slides.
• Glamis Adventure Playground (London): Incorporates fire pits, supervised by "play workers," to allow for more intense, hands-on experiences.

5. The Argument for "Risky Play"

Play researcher Ellen Sandseter argues that "risky play"—engaging with heights, speed, and uncertainty—is vital for development.

• Risk Management: By experiencing small, controlled doses of danger, children learn to assess their own limits and keep themselves safe.
• Mental Health: Exposure to uncertainty helps children manage anxiety and builds confidence.
• Safety Statistics: Research indicates that children are actually more likely to be seriously injured on traditional playgrounds, potentially because adventure playgrounds encourage higher levels of situational awareness.

6. Evolving Playground Design

Beyond adventure playgrounds, designers are integrating risk and novelty into more structured environments:

• Nature Playgrounds: Focus on creeks, caves, and trees to combine risk-taking with the psychological benefits of nature.
• Innovative Urban Design:
  • Philadelphia: Features a 30-person "mega-swing" to encourage social, high-energy play.
  • Omaha Riverfront Playground: Uses a "play spine" of multi-layered decking that creates secret tunnels and rope forests, moving away from static, single-use equipment.

Conclusion

The primary takeaway is that effective playground design must move away from rigid, low-affordance structures. By incorporating elements of freedom, novelty, and controlled risk, designers can create environments that empower children to develop essential life skills. The goal is to provide a variety of spaces that invite children to exercise their agency and "fill in the possibilities" of their own play.