Represents the percentage of Net Rentable Square Feet devoted to the building's common areas (lobbies, rest rooms, corridors, etc.). This factor can be computed for an entire building or a single floor of a building. Also known as a Core Factor or Rentable/Usable (R/U) Factor, it is calculated by dividing the rentable square footage by the usable square footage.

The number resulting from diving the Usable Area by the Gross Building Area in an office building, providing a benchmark measurement for that building's use as an office building.

A ratio corresponding to the average percentage of total time that productive work is being performed by personnel or equipment.

measure of overall performance used in a work measurement system. It is calculated by dividing the standard time to perform the work by the actual time. [D03497] GAT

Time a resource stops during production due to reel change, jamming, fatigue (for labor resources). This time is not recorded as downtime.