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Old 25-10-2009, 04:05 PM
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Robh (Rob)
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Join Date: Feb 2009
Location: Blue Mountains, Australia
Posts: 1,338
This is an ever-increasing problem with the spread of more suburbs.
Most street lights produce a light cone whose apex angle is near 180 degrees, which is ridiculous. The result is that the light can be seen hundreds of metres away at right angles to the street from the light pole, in directions the light is not required. Appropriate shielding should only allow light onto the paths and road surfaces they are intended for.

Regards, Rob
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