Cehao Yu Quadrant Arcade Public Realm
Quadrant Arcade Public Realm is Golden Design Award winner in 2019 - 2020 Lighting Products and Lighting Projects Design Award Category.
Quadrant Arcade Public Realm

The Grade II listed arcade has been transformed into an inviting street presence through arranging the right light at the right place. General, ambient illumination is used holistically and its effects staged hierarchically to achieve variations in light patterning that create interest and promote increased use of the space. Strategic incorporation for design and placement of the dynamic feature pendent was managed together with the artist so that visual effects appear more subtle than overwhelming. With daylight fading, the elegant structure is accentuated by the rhythm of electric lighting.

Quadrant Arcade Public Realm
Cehao Yu Quadrant Arcade
Cehao Yu Public Realm
Cehao Yu design
Cehao Yu design
Cehao Yu

With my design background, I consider light to be more visible as a social scientific topic instead of a technical layer for physical environment. Light is shaped or configured into urban space and itself configures experience, sense and emotion. Urban lighting enters into the ways in which social life and interaction is staged and enacted in specific social worlds. It was recognized that lighting can change subjective and behavioural responses of people. Can dynamic feature lighting produce urban lit environments that increase a sense of security in the public and encourage spatial usage? This research question was tackled by undertaking field studies on five sites, i.e. Granary Square, Finsbury Avenue Square, Piccadilly circus, Leicester square and Westfield of Stratford. Over 300 interviews have been undertaken with visitors to the sites when the dynamic feature lighting is on. My aim is to produce both knowledge and methodologies for better researching the ways in which dynamic feature light is configured into urban space and the roles it plays in structuring social life. In pursuing this aim, a guideline for dynamic feature lighting was proposed based on conclusions of factor analysis and open-ended comments left by observers. It is the authors’ aspiration to support design teams in their quest to realize successful applications to refocus the original need for artificial lighting; not from a technological, economical or artistic point of view, but merely from the observers’ point of view.


AECOM (NYSE: ACM) is a global provider of architecture, design, engineering, and construction services for public and private clients across a broad range of markets, including transportation, facilities, environmental, energy, water and government. We are a specialist lighting consultancy that provides a complete lighting design service from masterplanning and concept development, through to detailed design and commissioning. The team has a wide range of experience including: creative interior and exterior lighting design, urban masterplanning, architectural and building services design, theatre and special effect lighting and luminaire design. This range of expertise helps us to deliver creative lighting designs that integrate with and complement the built environment. The design philosophy of AECOM Lighting Group places key emphasis on people and sustainability. With a passion for lighting, architecture and design together with technical capability we work within the design team to create positive visual environments.