LIGHT POLLUTION AND NIGHT TIME LIGHTING

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LIGHT POLLUTION ANDNIGHT TIME LIGHTING

• Presentation to Beaver Hills Initiative
• February 14th, 2007
• RASC Edmonton Center

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WHAT IS LIGHT POLLUTION?

• Environmental Pollution from Lighting
• Manufacture and Disposal
• Greenhouse Gas
• Light as Pollution
• Light Trespass
• Wildlife Disruption
• Sky Glow
• Night Time Lighting And Pollution

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EARTH AT NIGHT (2002)
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NIGHT TIME LIGHTING

• Why This Topic ?
• Promote Effective Lighting
• Raise Energy Consciousness
• Reduce Light Pollution
• Preserve and Restore Dark Skies
• What Do I Want to Achieve ?
• Increase Knowledge of Night Time Lighting
• Increase Awareness of the Problems
• Offer Practical Solutions

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NIGHT TIME LIGHTING TYPES

• Night Lighting
• Commercial Perimeter Lighting
• Architectural Lighting
• Signage Lighting
• Parking Lot Lighting
• Roadway Lighting
• Industrial Lighting
• General Security Lighting
• General Comments

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NIGHT LIGHTING

• Interior Lighting After Hours
• Way Finding
• Exit Lighting
• Appearance
• Security
• Solutions
• Dark Building
• Access Path Lighting
• Illuminated Switches
• Controls

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BUILDING EXTERIOR LIGHTING

• Perimeter And Area Lighting
• After Hours Access
• Security
• Solutions
• Minimize
• Avoid Up-light and Light Trespass
• Use Controls

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ARCHITECTURAL LIGHTING

• Building And Landscape Lighting
• Night Time Appearance
• Who Looks?
• When?
• Solutions
• Minimize
• Avoid Up-light and Light Trespass
• Controls

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SIGNAGE LIGHTING

• Directional Signs
• Direct Traffic
• Inform Drivers
• Advertising Signs
• Attract Attention
• Sell Stuff
• Solutions
• Reflective Signs
• Control Brightness
• Time of Day Control

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PARKING LOT LIGHTING

• Find and Enter Car
• Light on Stalls
• Pedestrian Security
• Shadow and Glare Issues
• Safer Driving Lanes
• Low Speeds and Headlights?
• Solutions
• Keep Light on Lot
• Cutoff Luminaires
• Proper Controls

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ROADWAY LIGHTING

• See and Avoid Obstacles
• Avoid Other Vehicles and Pedestrians
• Provide Direction Information
• Find Addresses
• Pedestrian Security
• Home Security

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ROADWAY LIGHTING

• Concerns
• Why light restricted access roads?
• Why on all night?
• Why the same level regardless of traffic?
• Why light up the front of houses?
• Solutions
• Dont use Metal halide
• Try lower levels
• Dont light back alleys
• Dont replace burnouts
• Upgrade program
• Consider controls

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ROADWAY LIGHTING
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INDUSTRIAL LIGHTING

• Used to Aid Work and Night
• Can Cause Light Trespass and Sky Glow
• Often on Dusk Till Dawn
• Solutions
• Dont Light Non-work Areas
• Use Portable and Temporary Lighting
• Turn off When Not Needed
• Uses Cutoff Luminaires
• Avoid Light Trespass

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GENERAL SECURITY LIGHTING

• Does Work?
• Is It Any Good?
• Who Is Watching?
• Who Responds?
• Casing the Joint?
• Crime Location Shift?
• Sense of Security?
• Danger of Complacency
• Physical Presence?

(Didnt stop Mike, did it?)
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Security?
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RECOMMENDATIONS

• Use Only As Much As You Need
• Use Cutoff Luminaires
• Avoid Disabling Glare
• Use Lighting Controls.
• Use Motion Sensors

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FINAL THOUGHTS

• Why Be Concerned?
• Rediscover The Night
• Take Time To Look At The Stars
• Explore The Night Sky

2 views of Orion Nebula
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This?
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Or This?!