Below are bad and good examples of outdoor lighting.  Lighting with high glare will have a bright ball of light around the fixture where as lighting that is well shielded, low glare, and with minimal spillage will appear with a smaller or ball of light.  First we will look at some bad lighting examples, then some good.
 


East bound exit from I-96 west of Inkster road.  The HPS flood light fixture on the right creates enormous glare interfering with vision for those exiting the expressway slowing down from high speeds.
 


Car wash on South side of Plymouth East of Middlebelt.  Notice how the high glare lights shine directly at West bound traffic, interfering with vision and potentially causing an accident.  Notice how these lights outshine the closer working streetlight by a substantial margin.  These lights also disrupt uniformity with surrounding lighting and scenery.


6 Mile by Laurel Park Mall.  Notice the large halos around the lamps.  These are bright 400 watt HPS fixtures that have very high glare giving a harsh appearance, plus causing unnecessary stress and distraction to the eye .  This problem could be significantly reduced by using shielded fixtures and/or reduced wattage.
 


Kentucky Fried Chicken on SW corner of Farmington and I-96.  Very high glare on Farmington road.  This causes safety problems and is an eyesore for the area.  The fixtures cause so much glare, light spots from the camera lens have formed near the bottom of the picture.
 


Mobil gas station on NW corner of  Merriman and I-96.  Notice the bright balls of light under the canopy, indicating high glare.
 


Sunoco gas station on SW corner of  5 Mile and Inkster.  Notice how the house in back is brightly lit from the canopy lights.  On the positive side, notice the shielded fixtures on the left.  The lights have low glare, and do not take your attention away from surroundings, plus they provide excellent visibility.
 


Speedway with very bright, glaring canopy lighting on NE corner of I-96 and Merriman.  When under this very bright lighting, eyes become adjusted, making surrounding areas just outside the gas station appear very dark.  This can be dangerous when exiting as your eyes are adjusted to bright conditions.  This problem is compounded as individuals may forget to turn on their headlights because of the very bright lighting.
 


This is an “acorn” fixture.  A popular fixture because of its historic look.  However, it has extremely high glare and is very inefficient as it wastes more than half of its light to the sky.  Very little light emitted from this fixture lights the area intended for illumination.  Also notice the dark circle under the lamp post.  Use of acorn type fixtures should be avoided at all cost.
 
 

Good lighting examples





Amoco on NE corner of 6 Mile and Farmington.  The canopy uses recessed fixtures.  Notice how the light source is barely visible and the service station area is quite visible.  The canopy lighting is non-obtrusive and does not cause glare interfering with driver and pedestrian vision.  The lighting does not degrade the aesthetics of the area or spill on other properties.
 


Sunoco on SW corner of 6 Mile and Farmington.  Although the fixtures are not shielded, they are recessed under the overall canopy, and because they are not overly bright, the station is well lit and does not have obtrusive glare.  Because the fixtures are not glaring or at excessive levels, attention is not drawn away from the area or activity because of lighting.
 


Livonia City Hall's parking lot on Farmington and 5 Mile.  The area uses non-excessive flat glass shoe box fixtures rendering good visibility with low glare.  Notice how halos are smaller compared to previous pictures and the parking lot is well lit. (Camera shows HPS brighter that the blue white Metal Halide fixtures in earlier photos).
 


Comparison between Good and bad lighting



Speedway on SW corner of Plymouth and Farmington.  Here is an excellent comparison between shielded/recessed lighting (on the left) and glaring drop lens fixtures (on the right).  Notice how the glaring lights have halos and the intense glare is causing spots of light in the middle of the picture.  Also notice how glare is spilling on Farmington road.  Notice how the building on the left has aesthetically pleasing, tasteful, non-glaring, non-distracting lighting with excellent visibility with no glare spilling on the road.
 


An outdoor lighting survey can be found Here

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