What is the required illumination level for decks on open piers?

The required illumination level for decks on open piers is typically established to ensure safety and visibility in these areas, particularly to prevent accidents and enhance security. An illumination level of 1.0 foot-candle is generally deemed sufficient for providing enough light for individuals to navigate safely without causing glare or excessive brightness.

This level allows for reasonable visibility while maintaining energy efficiency and minimizing light pollution. It strikes a balance between safety needs and practical considerations for outdoor environments. The other choices represent higher levels of illumination that may not be necessary for open piers, where 1.0 foot-candle is considered adequate for typical activities.