Staying Safe in a Dark Sky Community
Dark Sky communities are generally safe communities, but criminal activity can still be a concern for some individuals based on their experiences. When it's dark, our fear response is triggered as our brains try to fill in the gaps and imagine potential dangers lurking in the shadows. This is a normal part of our survival instinct.
Real security depends on the wise use of lighting. Instead of more and brighter lights, smart lighting that directs light down where it is most useful has the most impact. It is possible to see the stars without compromising safety. Effective lighting that helps people be safe, not just feel safe, is a win-win situation for everyone. We can create a safer environment while keeping the night natural. Here are some simple rules to follow:
Use dark-sky friendly fixtures. That means lights that shine down, not up or sideways, and don't create glare and contrast. Glare from bright, unshielded lights actually decreases safety as it creates deep shadows, making it more difficult to see. The brightness also constricts your pupils, diminishing your eyes' ability to adapt to low-light conditions. You'll be able to see what's in the light but not what's beyond it.
Only use lights when and where needed. Install timers and dimmer switches. Use motion sensors for security lighting and make sure that they are properly installed so that they aren't triggered by small animals or passing cars.
Use the right amount of light. The truth is bad outdoor lighting can decrease safety by making victims and property easier to see. And be sure to install them so they don’t illuminate higher than the eaves of your house and in areas that won’t keep you or your neighbors up.
Use long-wavelength lights with a red or yellow tint to minimize negative health effects. Blue-rich white light sources are also known to increase glare and compromise human vision, especially in the aging eye.
Read more about outdoor lighting, crime, and safety at Darksky.org. Check back tomorrow at montenido.org for night six of Dark Sky Week.