A Study on Park Lighting Using the Expressive Characteristics of Natural Light

Abstract

(Background and Purpose) With the rapid development of science and technology, the role and function of light have gradually changed and expanded. In the midst of the changes, city people have come to demand quality lighting associated with natural light in a park, and have come to pursue park lighting that heals and revitalizes tired city life. However, the understanding of the expressive characteristics of natural light is still insufficient, and there are no studies on the use of night lighting related to it. Therefore, the purpose of this study is to specifically propose an application that can secure citizens' emotional stability and a sense of healing, and activate the value of night lighting in the park by directing the night lighting associated with the expressive characteristics of natural light. (Method) It draws the expressive characteristics of natural light by establishing the concept of the value structure by dividing the elements of space into natural and artificial elements through theoretical review on the expressive characteristics of natural light, and by examining the connectivity between park elements and Japanese architect Tadao Ando's philosophical thinking that reflects the modeling of water and light that natural elements have. Taking Nam-san Park in Seoul as an example, it intends to suggest a specific direction for using natural light in various visual modeling. (Results) It has been confirmed that landscape park elements are divided into water, green space, roads, and facilities, which are related to non-materiality and temporality according to light brightness, color temperature, and shadows of nature. It appears as a healing characteristic and an experiential characteristic through the interaction between humans and nature, which is an action factor. In the end, it was confirmed that the expressive characteristics of natural light were developed into human behavior affordance and symbolism by interlocking with non-materiality such as surface, reflection, projection, and distortion and temporality according to the seasons of nature. (Conclusions) In the city park at night, the environment is changed differently depending on the complete utilization of the expressive characteristics of natural light in the space. In particular, it was confirmed that the physical property change of light among the expressive characteristics of it, was expressed as biodynamic characteristic, healing characteristic, and experiential characteristic that are deeply related to the emotional state of citizens, which helps their emotional change, secure emotional stability. It was confirmed that it helps to recreate the existing luminous environment of the park as an experiential space that can bring emotional serenity and vitality away from a more monolithic perspective. It is hoped that various follow-up studies such as a study on the criteria for lighting environment design, will proceed by building a qualitative luminous environment utilizing the expressive characteristics of natural light through this study.