1 2014 PSATS ANNUAL CONFERENCE 2014 PSATS ANNUAL CONFERENCE PROTECTING YOUR TOWNSHIP PROTECTING YOUR TOWNSHIP FROM UNDESIRABLE FROM UNDESIRABLE OUTDOOR LIGHTING OUTDOOR LIGHTING Presented by: Barry Johnson and Stan Stubbe The Pennsylvania Outdoor Lighting Council PA Chapter of the International Dark-Sky Association
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2014 PSATS ANNUAL CONFERENCE PROTECTING YOUR TOWNSHIP FROM UNDESIRABLE OUTDOOR LIGHTING
2014 PSATS ANNUAL CONFERENCE PROTECTING YOUR TOWNSHIP FROM UNDESIRABLE OUTDOOR LIGHTING. Presented by: Barry Johnson and Stan Stubbe The Pennsylvania Outdoor Lighting Council PA Chapter of the International Dark-Sky Association. Topics AN ORIENTATION IMPORTANCE OF GOOD LIGHTING - PowerPoint PPT Presentation
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• Shielding the light source (bulb) from peoples’ view
• Shutting lights off when not needed
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WHAT IS GOOD LIGHTING?WHAT IS GOOD LIGHTING?The right amount of light:
• Not too much or not too little for the seeing task
• Legally defendable
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WHAT IS GOOD LIGHTING?WHAT IS GOOD LIGHTING?Good lighting means placing the light only where it is needed or is wanted, to prevent light trespass and sky glow.
Courtesy RAB Lighting Courtesy RAB Lighting
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Sky glow blocks seeing stars Sky glow blocks seeing stars Natural light from the stars
Light pollution from below
FLOODLIGHTS POSTTOPS PARKING LOTSHOME LIGHTING
SKY GLOW
AIR POLLUTION AND MOISTURE PARTICLES
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WHAT IS GOOD LIGHTING?WHAT IS GOOD LIGHTING?
Good lighting aims and shields the source to prevent “glare.”
“Glare is light that causes annoyance, discomfort or loss in visibility
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WHAT IS GOOD LIGHTING?WHAT IS GOOD LIGHTING?Good lighting shields the light source from view.
Shielding blocks light from going where it doesn’t belong and covers the bulb from view.
Unshielded Shielded
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FULLY SHIELDED UNSHIELDED
STREET LIGHTSSTREET LIGHTS
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PERIOD LIGHTINGPERIOD LIGHTING
SHIELDED UNSHIELDED
ACORNS
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PERIOD LIGHTINGPERIOD LIGHTINGUnshielded Acorns
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WALL PACKSWALL PACKS
Shielded Unshielded
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FLOODLIGHTSFLOODLIGHTSUNSHIELDED LIGHT GOES UP AND DOWN
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Billboard & Sign LightingBillboard & Sign Lighting
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LED Sign Up-Lighted Billboard
Glare to Spare
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Barn Light25
Barn LightBarn Light, aka Dusk-to-Dawn Lightaka Dusk-to-Dawn Light
POSTER CHILD FOR UNSHIELDED GLARE AND ENERGY WASTE
KEEP THEM ON THE FARM
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UNCONTROLLED GLAREUNCONTROLLED GLAREBarn Light
Some light even reaches the ground!
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WHAT IS GOOD LIGHTING?WHAT IS GOOD LIGHTING?
Lastly, good lighting is on only when needed
It is to shut of at the close of business or when no one is watching to see what’s being lighted.
Programmable Timer Motion Sensor Midnight Off Photocell