The control of Light Pollution is a high priority design consideration for both new projects and existing installations. It can be effectively restricted by applying Best Practice principles, careful planning, improvements in luminaires and lighting design, backed by clear education.
What is Light Pollution / Obtrusive Light?
Light is not a pollutant in the normal sense, being non-poisonous, noxious or harmful in most instances. A better definition is accepted as being Obtrusive Light, encompassing a multitude of forms of undesirable light and lighting. We can separate these into:
- Light Intrusion (Light trespass, Overspill, Light into windows): The flow of light spilling outside the location boundary. With inadequate control Intrusive light may be sufficiently great as to provide a serious nuisance and disturbance to adjacent areas.
- Glare: Glare may be divided into 2 types known as disability and discomfort glare. In a Sports Lighting context it relates primarily to direct viewing of the floodlights. Only in severe situations would disability glare be experienced. In most instances it is discomfort glare that may result, causing annoyance to the viewer if inadequate screening of floodlights is not provided.