44 FOCUS
Above The Simose Art Museum, Otake, Hiroshima, Japan, by Lumimedia Lab. Here, moveable galleries float over a water basin, vividly illuminated in different colours and reflected on the water’s surface and half-mirrored exteriors of the entrance and exhibition hall
the fact that lighting impacts the health and well-being of building occupants.
All of this must be navigated alongside new and frequently changing legislation and on the wave of digital change affecting all industries. Tis puts a greater degree of opportunity and responsibility than ever before on the practitioner carrying out the lighting design. LG23 aims to capture as much of this change as possible, and to prepare practitioners for the current and future direction of lighting design practice. Te guide is not intended to provide solutions, but it goes into detail on a wide range of possible design considerations and approaches for every stage of a
LG23: Content at a glance
Te new guide outlines the design process, drawing on models such as the consideration of design as a ‘Wicked Problem’ (as defined by Rittel, Horst and Webber in 1973 in Dilemmas in a General Teory of Planning), and the process of orderly and informed decision-making depicted by the Design Council’s Double Diamond (dividing the design process into four distinct stages: Discover, Define, Develop and Deliver).
LG23 is broadly structured around the considerations and approaches needed for each of these four stages, and covers the principles of lighting design, including:
• the human relationship with light, and the intrinsic relationship between light and architecture • the fundamentals of lighting design in terms of elements such as visual perception, contrast, visibility, shadow, adaptation, lighting the task, emphasis, mood, atmosphere, style, suitability, spatial expression and decoration
• the importance of considering all the requirements of the people using space being designed • consideration of the place – the context, materials and architecture • lighting regulations, standards and guidance, the difference between these and how to interpret these • other considerations including daylight, sustainability, circular economy, safety and security, inclusive design, well-being, dark skies, ecology, CDM, access and maintenance, and lighting control
• the key objectives a lighting designer has and the choices that he or she must make in their approach to a scheme • the lighting design process, from gathering the information needed, through creating the design narrative, to developing the detailed design
• fundamentals of project delivery, such as outlining the various roles in the project design team, project design stages (RIBA Plan of Work), BIM, lighting analysis software and communication of the design.
project. Te overall intent is for it to inform and assist lighting designers with design and to ensure that they are aware of the potential issues involved when undertaking a lighting design project, as well as to enable them to know when to ask questions and seek advice.
Lighting Guide 23 (LG23) is due to be published this year. For more details of all SLL publications go to:
cibse.org/get-involved/societies/society-of-light-and-lighting- sll/knowledge-resources/sll-publications-and-guidance
Jeff Shaw, FSLL, lead author of LG23, is associate director lighting design at Arup and former SLL president
PHOTO: HIROYUKI HIRAI; KOZO OKAWA YAMAGIWA
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