Senior Lighting Designer presentation in Liverpool UK on Light Obtrusion from built up environments

1. Obtrusive Light
Richard Morris
#lightnight

2. • demands of urban environment
• managing obtrusive light in design
• the future of urban lighting

7. Managing Obtrusive Light
http://nightblight.cpre.org.uk/maps/
IDSR
IDSR
IDSR
IDSR
IDSR

8. • light spill
• indirect/direct upward light
• light source intensity
• signage illuminance
• spectrum???

9. Mercury Fluorescent Metal Halide Low Pressure Sodium High Pressure Sodium LED
400 500 600 700 800

10. How do we tackle obtrusive light…?
• nocturnal survey of baseline
• measurements according to CIE150 etc.
light spill - light source intensity - luminance
• HDR techniques to capture luminance profile

11. light sources

12. existing
existing - digitised new - for comparison
• best practice lighting design
• guidance from CIE etc.
• comparison with baseline

13. • LED vs older technologies

14. The future – more focus on the human factor

15. … it is about creating a place.
It is not about lighting a space …

16. • nighttime economy
• extending the use of public space
• adaptable and flexible
• safe and secure environment
• health and well-being
• people’s experience, choice & need
Increasingly it is about the 24 hour city:

17. TRADITIONAL APPROACH
Queen Victoria Square, Hull (not Arup) – 2014
Following the standard - ?!

18. … or not to light?
To light …

19. City Park, Bradford

20. It is time to re-draw city design visions to include the
hours of darkness.

21. Adele, Glastonbury 2016
1980 - - - - 1990 - - - - 2000 - - - - 2010 - - - -

22. Smart lighting
Bluetooth Low
Energy Enabled
Luminaire
Smart
Device
Apps
Location and wayfinding
Position-based information
Reminders and alerts
App or web-based

23. Community control + technology + night-time design = sustainable after-dark environments
Smart lighting - responds to need

24. Other smart lighting opportunities…
• Interaction: retail information, civic features, pedestrian flow optimisation
• Wayfinding: navigating through a space, indoors and out
• Assistance: guide partially sighted people through the city
• Energy: automatic response to usage, off-peak dimming
• People: movement trends, monitor and predict

25. • demands of urban environment
• managing obtrusive light in design
• the future of urban lighting
…BALANCE…

26. Thank you