Donkertebeperking

Donkertebeperking is a term used in Dutch discourse to denote policies, practices and measures aimed at preserving periods of natural darkness by limiting artificial light during nighttime. It encompasses regulatory approaches such as lighting curfews, zoning rules for outdoor illumination, and requirements for shielded fixtures and limited luminance, as well as voluntary guidelines adopted by municipalities, institutions and businesses to reduce skyglow.

The concept is connected to broader efforts to combat light pollution, protect nocturnal ecosystems, enable astronomical observation, and support human health and energy efficiency. It is often discussed alongside related terms such as donkertebehoud (darkness preservation) and klimaat- en energiebeleid.

Implementation may include dimming during late hours, use of motion-activated lighting, restrictions on blue-rich spectra, and the designation of dark zones where lighting is minimized. Cities may adopt donkerteplannen that set targets for sky brightness, shielding, and curfews.

Benefits include improved visibility of the night sky, healthier wildlife behavior and sleep patterns, reduced energy use, and lower carbon emissions. Challenges include balancing safety and visibility, costs of retrofitting, and inconsistent enforcement across jurisdictions.

International and national actors, such as the International Dark-Sky Association, provide standards and guidance, while local pilots illustrate how donkertebeperkingen can be integrated into urban planning.