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LG06 The exterior environment (2016)
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LG06 The exterior environment (2016)

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Since the last edition of this guide, in 1992, there has been a surge of interest in lighting the exterior environment – in particular, light pollution, energy use and long-term sustainability have become more pertinent than ever. In the 1990s, LEDs that could produce a functional amount of light were simply not available. This technology will continue to develop and there is a strong expectation that it will replace conventional light sources.

The aim of this guide is to reflect these changes and provide readers with a firm foundation from which to approach exterior lighting design. Since light source technology is advancing rapidly, the guide provides a holistic approach to the design of the exterior environment, rather than concentrating on product performance, which quickly becomes out of date.

One of the major differences between this current guide and the previous edition is the emphasis on environmental and energy issues. Digitally controlled lighting is becoming an increasingly important facet of lighting design. Another major difference is the growing use of solid state lighting (SSL). This normally refers to LEDs, although other SSL sources are being introduced.


1 Introduction 

2 General design aspects for exterior lighting

2.1 Context

2.2 Legislation and guidance 

2.3 Area lighting

2.4 Amenity lighting

2.5 Landscape lighting

2.6 Facade lighting

2.7 Security lighting

2.8 Roadways

2.9 Vision

2.10 Video walls, streaming onto building facades

2.11 Digital advertising signs

2.12 Presentation of lighting concepts and lighting software

2.13 Equipment – off-grid systems

2.14 Luminaires

2.15 Light sources

2.16 Saving energy, signalling and switching

3 Lighting for specific applications

3.1 Flags and statues

3.2 Pedestrian routes, cycleways and subways

3.3 Water features, fountains and pools

3.4 Steps, stairs and changes of level

3.5 Maintenance of external lighting systems


Appendix 1: IP ratings

Appendix 2: IK ratings

Appendix 3: Floodlighting calculations

Appendix 4: Artificial lighting and its effect on animal and plant ecology


Author: Alan Tulla (Alan Tulla Lighting)

Task Group Chair: Alan Tulla

Members: Lorraine Calcott (it does Lighting Ltd); David Mooney (Atkins); Theo Paradise-Hirst; Chris Wilkes (Holophane Europe Ltd)

Technical and Publications Committee: Paul Ruffles/Simon Robinson (Chair); John Fitzpatrick (Publications Co-ordinator)

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