| The Good, the Bad, and the Ugly of Nighttime Lighting |
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This house is clearly lit by the acorn streetlight out front. As much light shines on the house (and in their windows) as does on the street. Plus, the streetlight creates debilitating glare for drivers and pedestrians. |
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Intense glare from rooftop-mounted floodlights shines out from this lumberyard. Can you read the sign? |
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The old poletop streetlights in Montauk, NY. These are now being replaced by the much better lights shown below. |
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These are the new streetlights of Montauk, NY. Notice that the bulb is tucked up into the opaque cap. This greatly reduces glare, light trespass, and upward waste of light. The neighbors love these new lights! |
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A comparison between unshielded acorn lights and full-cutoff lights. The larger version of this image is labeled. |
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Neighborhood grocery store's parking lot, lit by a pole-mounted floodlight. Notice the intense glare and widespread light trespass. |
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A tree in fall, showing light-stress. The half of the tree nearest the light has retained its leaves while the other half is going into its natural fall dormancy. Long term, artificial light can weaken a tree due to late entrance and early emergence from dormancy. |
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Light trespass is quite evident from this NY City (Tenth St) luminaire. Rooms on the second floors are flooded with light from the streetlights. As is also evident, these produce considerable glare to hinder motorists and pedestrians. |
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The US at night from space. You can easily pick out most every major population center, trace long highway routes, and follow the coastline. See the whole world at night, here. |
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East Hampton Supervisor's office, well lit by a GlareBuster light. This is an example of good lighting! |
