Installed in an urban rooftop garden, the large public furniture “Reaction Field” is a curvilinear structure that branches and expands outward from its center, serving as an experimental study of new pattern formations in public space. The circular structure at the core functions as a device emphasizing centrality, while the diverging curves expand through variations within a set of defined rules.
This curvilinear pattern is based on the reaction–diffusion system proposed by British mathematician Alan Turing. This theory, which mathematically models the combination of simple chemical reactions and diffusion processes, explains how orderly forms—such as animal skin patterns or plant growth structures—spontaneously emerge in nature.
Reaction Field translates this principle into an algorithmic process, regulating the flow, spacing, and elevation of the curves to present not an arbitrary shape but a self-organized formation.
In particular, the central circular canopy not only redefines the spatial character but also acts as a new variable in the diffusing pattern, creating an interwoven effect between the two elements. The stainless-steel surface reflects the ground pattern, intersecting the upper and lower realms, nature and artificiality, reality and reflection. The canopy functions not merely as a shade but as a mediator that induces spatial response and interaction. Structurally, it combines a metal frame with white silicate-treated wooden decking.
The white finish forms a vivid contrast against the surrounding greenery and riverside landscape, accentuating the flow of the curves. This contrast goes beyond a simple visual effect—it allows the entire park space to be perceived as a singular, unfamiliar image, distinct from the ordinary grass field.
The curves rise to various heights calibrated to human scale, transforming into functional furniture such as chairs, tables, and stages. Lighting is embedded beneath the curves so that at night, light appears to flow from within, turning the physical pattern of the day into a pattern of light at night.
