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Having past experience in OC coal mining, I can quite happily say that night operations are usually WAY OVERLIT and over the top. After leaving the lit areas, as we astronomers know, there is a period of adjustment. Critical areas of work, such as the dig face, need a good splash of light, but other areas do not. It would be more prudent to slow down just a little during night operations for the sake of safety, rather than expecting lighting towers to protect you from the perils of the night. Side effects of large lighting are disorientation in the work area as a result of shadowing and a distortion of depth of vision perception. But as they say in the industry.........."SAFETY FIRST - (AFTER PRODUCTION!)
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