What is the U.S. Army minimum illumination intensity for lighting the perimeter of a restricted area?

The U.S. Army specifies a minimum illumination intensity of 0.40 foot-candle for lighting the perimeter of a restricted area. This level of illumination is considered sufficient to enhance the visibility and security of the area while allowing security personnel to effectively monitor for unauthorized access or activities. Adequate lighting at this intensity helps reduce risks associated with shadows and dark spots that could provide cover for potential intruders.

In security planning, the emphasis on a minimum illumination level reflects the importance of maintaining a secure environment, particularly around areas designated for restricted access. The noted illumination intensity is part of established standards that aim to support the operational readiness and safety of military installations, ensuring that all personnel can perform their duties effectively against potential threats.