Crime Prevention Through Environmental Design (CPTED) Practice Exam

What is a foot candle?

1. A unit of measuring light intensity

2. A type of lighting fixture

3. A method of lighting control

4. A safety guideline for illumination

The correct answer is: A unit of measuring light intensity

A foot candle is indeed a unit of measuring light intensity. It specifically quantifies the amount of light that illuminates a surface area of one square foot from a uniform light source. This measurement is foundational in various fields, including architecture and crime prevention, as it helps assess how adequately a space is illuminated for safety and visibility. Understanding this concept is essential for implementing effective Crime Prevention Through Environmental Design (CPTED) strategies, since appropriate lighting can deter criminal activities and enhance the perception of safety in an environment. The other options do not accurately represent what a foot candle is. Lighting fixtures are physical items that produce light; lighting control refers to the methods of adjusting light levels or timing; and safety guidelines for illumination involve recommendations or standards rather than a specific unit of measurement. Therefore, recognizing the definition and practical application of a foot candle is crucial for those involved in creating safer environments through effective lighting design.